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3 DEPARTMENT' OF NATBONAL DEVELOPMEN7

g EOPHY

RECORD No. 1967/8282

5O1P) 4-'^%.• C., LI

Drillingin the Eastern Eromanga Basin

1966

by

M.O. GALLOWAY and J. INGRAM

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P..

DRILLING IN THE EASTERN EROMANGA BASIN 1966

by

M.C.Galloway and J. Ingram

1967/82

The information contained in this report has been obtained by theDepartment of National Development, as part of the policy of the CommonwealthGovernment, to assist in the exploration and development of mineral resources.It may not be published in any form or used in a company prospectus withoutthe permission in writing of the Director, Bureau of Mineral Resources,Geology and Geophysics.

CONTENTSPage

SUMMARY^ 1

INTRODUCTION^ 2

^

B.M.R. Jericho 4^ 4tiÎI^5^ 4ii^ 6^ 5

7,8,9^ 6

^

7^ 6IIîi^8^ 7iiîi^9^ 7

^

Tambo 5,5a.^ 8

" 6u 7^ 10

8^ 1111Îi ^ 11

^

Augathella 1^ 1211^11^2^ 1211^ 3^ 13Ii^ 4^ 14"Âdavale 1^ 15

CONCLUSIONS^ 16ACKNOWLEDGMENTS^ 17

REFERENCES^ 18

APPENDICES

1 Results of coal analysis carried out by Geological Surveyof Queensland.

2 Micropalaeontological examination of B.M.R. Adavale 1,Augathella 1,2,3. Jericho 9 and Tambo 5,6, by G.R.J.Terpstra

3 Preliminary report on the palynology of Augathella 3,4,Tambo 5,6, and Jericho 9 by D. Burger.

4 Palynology of some shallow drill core samples from the Tamboand Jericho 1:250,000 Sheet Area, by P.R.Evans.

5 Core analysis results - B.M.R. Drilling, Eromanga Basin,Queensland.

CONTENTS

Text Figures^Opposite Page

1. Scout Hole Localities 3

2. Graphic log, Jericho No. 4 4

3. u u It^No.^5 5

4. 11 1, u^No. 6 5

5. u u u^No. 7 6

6. u u 11^No.^8 7

7. It u u^No. 9 8

8. II ti Tambo No. 5 and 5a 9

9. u u "^No. 6 10

10. H u "^No. 7 10

11. u u "^No. 8 11

12. It /I "^No. 9 12

13. It I, Augathella No. 1 12

14. It If 11^No.^2 13

15. It 1, II^No.^3 14

16. 1, u u^No. 4 15

17. u u Adavale No. 1 15

Appendix 1

Figure Al Graphic logs of coal-bearing intervals, Augathella No. 2 and 4and Adavale No. 1 Scout bores.

TABLE

1 Drilling Statistics^ 3

SUMMARY

During the 1966 field season 16 shallow stratigraphic holes were

drilled in the Barcaldine-Alpha-Tambo area of Queensland (between 23°001 to

2530' and 145o to 147° E). Units drilled range in age from Carboniferous to

Cainozoic.

The depth of the holes ranged from 104 to 413 feet and averaged

248 feet. The total footage drilled was 4472 feet, including 1129 feet of

coring. An average of 12% of coring was carried out in each hole. Core

recovery per hole ranged from 28-99% and averaged 84%.

Drilling took place between June 20 and October 12 over 73 days,

at an average rate of 4 days per hole.

As a result of the drilling, some of the mapping of the Jurassic

units in the Jericho Sheet area has been modified; the mapping of the Cretaceous

units was substantiated. The sandstones at the base of the Marine Cretaceous

sequence in the Tambo district were found to be discontinuous and no equivalent

of the Mimi Member of the Blythesdale Formation was found. Thinning of the

Hooray Sandstone over the Birkhead Anticline north of Tambo was proved.

Cores of coal for quality evaluation were cut in the Cretaceous

Winton Formation. Cores for palynological.examination were cut in the Joe Joe

Formation, Colinlea and Dunda Sandstones, the topmost Moolayember Formation and

Black Alley Shale. The Joe Joe Formation was found to underlie the extensive

area of Cainozoic sediments surrounding the Alpha township.

-2-

INTRODUCTION

The 1966 drilling programme was planned to provide lithological

and palynological control to supplement surface mapping undertaken during 1964

and 1965 by the Great Artesian Basin party. The area mapped during 1964 (Vine,

Jauncey, Casey and Galloway, 1965) and to a lesser extent in 1965 (Ekon, Gallowayan^ e4c6c

Sad Casey, 1966) was one in which there was little outcrop or only deeply weathered

exposure in the Jurassic sequence. Thus mnny formation determinations were

questionable.Additionally some holes were planned to obtain fresh samples of

coal for quality evaluation.Drilling was carried out by the Petroleum Technology Section; Mineral

Resources Branch of B.M.R.,during two periods, the first from June 20th to July

31st, the second from September 12 to October 12 - a total of 73 days. During

this time 16 holes were drilled to an average depth of 248 feet of which 12%

was coring (re-drilled holes excluded in both cases). Details of the drilling

are summarised in Table 1.Two holes were drilled at certain sites, the first hole being drilled

to obtain wire line logs from which the coring programme was drawn up, and the

second hole, cored at the selected intervals, thus minimising the amount of coring

necessary.Geological supervision of the drilling was provided by Galloway who

also carried out a preliminary exnmination.of the samples. Ingram carried out a

systematic re-examination of the cores and cuttings in Canberra and compiled

figures 2- 17. The final interpretation was by Galloway.

Nomenclature of arenVes follows Crook (1960). "Siltstone" is used

for grains 1/16 - 1/25 m.m. and the term "mudstone", for non-fissile sediments

of the clay size class, and "shale" for fissile mudstones. Grade sizes used are

those of Wentworth (1922).

Figure 1 shows the localities of the holes drilled, and drilling

statistics are set out in Table 1.

The data obtained from the drilling of the sixteen holes follows

2 4°

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B.MR. SC.," 130,e.

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1

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Fig 1.

SCOUT^HOLE LOCALITIES

0/A113

-v

-3-

TABLE 1

DRILLING^STATISTICS

Well Footage%Rec Spudded

Compl-eted

I,741^til)Xi .9

43ic,„2,

'.-4.a1 +2 pmili !

t1 i .144,4 iiName and Number TD Cored Rec

CAREY^RIG

Jericho^4 223'^6" 10'^6" 9'^4" 6V0 27/6 29/6 3 2 1i 5

5 289' 6" 93' 0" 64' 4" 70% 0 14/7 4 4 1 7

Augathella 1 104 23'. 6" 22'^2-i" 95% 18/7 20/7 ti - 1 -

2 153 60' 0" 591^3" 99% 20/7 22/7 2i 1* - i

Tambo^5 278' 6" 76'^6" 63' Ti" 83% 25/7 29/7 5 i - -

5a 75 25'11" 25'^2" 97% 30/7 30/7 i -

MAYREW^1000 Rig

Adavale^1 (1) 240 - 14/9 14/9

(2) 174' 4" 6727 63'11" 95% 14/9 15/9 2 - 2 -

Tambo^6 (1) 210 16/9 16/9

(2) 150 30' 0" 28' ai" 94% 16/9 19/9 li 1 i 1

Augathella 3 387 133'^0" 105'^7" 90 20 24/9 ai 1-i.^1 1

Tambo^7 251 ^" 19'^6" 171^6" 90% 20 27/9 -i- i -

8 2171 201 0" 712" 36% 28/9 28/9 1 -^- -

9 172' 15'^0" 4'^3" 28% 29/9 29/9 3/4 -î

Jericho -^6 3101^0" 20' 0" 171^6" 88% 30/9 00 1-i- -î -i-

7 413'^3" 40'^1" 34'^3" 85% 4/10 5/10 • 2 1i i -

8 140' - 6/10 6/10 24:- _ît _

9 402 57'^6" 54'^3" 94% 6/10 8/10 ai 1î -

Augatella 4 (1) 177 12/10 12/10 - -^- -

(2) 1041 6" 191^0" 13'11" 73% 100 12/10 i 2 1i -

,

(1) (2) See introduction for explanation

-4-

B.M.R. JERICHO 4 (map ref 45620557 Jericho)

Object:^To collect samples for palynological examination from a unit,

thought to be the Lower Permian Colinlea Sandstone.

Results:^0-90 Colinlea Sandstone, mainly quartzose sandstone

90-223'6" Joe Joe Formation, mudstoneoiltstone,fine grained'

labile sandstone, pebble conglomerate.

Comments:^Presence of quartzose sandstone (0-100') confirmed the surface

lithology, so the unit was probably Colinlea Sandstone. This interval, which was

weathered throughout, contained no mudstone or siltstone; the sandstone was

quartzose and sub-labile so no suitable material for palynology was encountered.

The presence, below 100 feet, of siltstone and mudstone, labile sand-

stone and pebble conglomerate indicates the presence of the Joe Joe Formation.

The hole was dry, and the lower half had collapsed before logging

could be attempted. The results of palynological examination of cores is

included in appendix 4: -

Cores:

Core 1,^213'^- 213'6", Length 6"^, recovered^6".

Core 2,^213'6" - 223'6", Length 10'0" , recovered 8'10".


Object:^To drill in an area where the Ronlow Beds (regarded as including the

whole Jurassic sequence) were thought to be thin. It was intended to core the

whole sequence for a detailed palynological and lithological study in order to

see whether correlates of the differentiated Jurassic sequence (Hutton to Hooray

Sandstone) could be recognised.

Results:^0-289'6" Ronlow Beds, mainly sandstone, extensively weathered throughout,

unsuitable for palynology.

Comments:^Well-weathered sandstone did not justify abundant coring. Hole could

not be completed as rig incapable of recovering stuck drill pipe (fish recovered

later by Mayhew). As a result of extensive weathering, the hole did not achieve its

objective of providing material suitable for palynological study. Subsequently,

gamma ray logging of a water bore about twelve miles to the west resulted in a

re-interpretation of the surface geology. It now appears that Jericho 5 was drilled

in that part of the Ronlow Beds which correlates with the Hutton Sandstone.

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-5-

CoreNumber

Interval LengthCored

LengthRecovered

1 39 -^49 101 0" 91 6"

2 81 -^91 101 0" 101 0"

3 91 -^96 51 0" 3' 6"

4 96 - 106 101 0" 6"

5 123 - 133 101 0" -

6 133 - 13316" 6" 6"

7 13316" - 137'6" 4' 0" 2' 6"

8 13716" - 14716" 101 0" 101 0"

9 17516" - 186' 10' 6" 4' 6"

10 217'6" - 22716" 101 0" 9' 9"

11 2281 - 238 101 0" 7' 9"

12 28216" - 289'6" 7' 0" 6' 3"


Object:^To determine what underlies the Cainozoic sediments immediately east of

Alpha.to fine

Results:^0 - 30 Quaternary alluvium, very fine/grained yellow brown sandstone,

with quartz pebble conglomerate at the base.

30 -130 Cainozoic sediments, clayey silt and minor silty mudstone.

Silty quartz granule conglomerate at base.

130-310 Joe Joe Formation, hard siliceous (?) mudstone, hard white,

pink and green siltstone, carbonaceous mudstone with abundant plant fragments,

silty pebble conglomerate, pink and green fine labile sandstone, some carbonaceous

beds.

Comments:^Good cores for lithological and palynological study were obtained;

for palynological results see appendix 4.

Cores:

CoreNumber Interval

LengthCored

4LengthRecovered

,^1

2

162 - 172

300 - 310

104 0"

101^0"

81^6"

91^0"

-6-

.B,M.R. JERICHO 7, 8 and 9

These holes were drilled to examine the Jurassic sequence, in

particular the Injune Creek Group. BMR Jericho 7 apparently drilled a thick

sequence of Tertiary sediments before bottoming in Hutton Sandstone. Having

not achieved its objective, BMR Jericho 8 was sited east of Jericho 7 where no

Tertiary sediments were known, to occur and where it was thought that the Injune

Creek Group would be found at shallow depth. This hole appears to have been

drilled entirely in the Hutton Sandstone. Having still not drilled the Injune

Creek Group, BMR Jericho 9 was sited at, or just below, the base of the Marine

Cretaceous sequence, and penetrated the Hooray Sandstone Westbourne Formation

and was terminated in the Adori Sandstone.


Object:^To examine the Jurassic sequence, in particular the Injune Creek

Group.

Results:^0 - 33 Quaternary alluvium,medium grained poorly sorted quartz sandstone.

33 -217 Tertiary Sediments

33 - 55 Silcrete, silicified quartz sandstone and quartz pebble conglomerate

55 -190 Medium grained quartz sandstone with common sandy pebble andgranule conglomerate.

190 -217 Very fine sandstone and siltstone with quartz pebble conglomerate

217 -413'3" Hutton Sandstone, fine to medium grained greyish orangequartzose and sub labile sandstone.

Comments:^Weathered throughout and may not be suitable for palynology. The

Tertiary Hutton Sandstone boundary is difficult to pick. Evidently no Injune Creek

Group Sediments were drilled. This is thought to be due to pre-Tertiary erosion

of the Injune Creek Group followed by inf ill with Tertiary sediments. As the Injune

Creek Group was not intersected, Jericho 8 was planned. .

Cores:

CoreNumber

IntervalLengthCored

LengthRecovered

1 207 - 216'6" 9 ^6" 4'^9"

2 252 - 262 10'^0" 8111"

3 328 - 3384" 10'^4" 101^4"

4 403 - 413'3" 101^3" 101^3"

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-7-


Object:^Follow up to BMR Jericho 7 to examine the Injune Creek Group on theeastern side of the possible Tertiary valley.

Results:^0 - 140 Hutton Sandstone, varicoloured fine to medium quartz sandstone,some coarse sandstone, some mudstone and silty mudstone.

Comments:^The well was evidently sited just below the base of the Injune CreekGroup. It is possible that Tertiary sandstones occur in the upper part of the hole

but it is not possible to pick a boundary from the cuttings. The absence of

conglomerates and very coarse sandstones which commonly occur in the Tertiary

sequence suggests that no Tertiary sediments occur in this hole. As the Injune

Creek Group had still not been penetrated, Jericho 9 was planned. The outcropspreviously regarded as Injune Creek Group in the Belleview - Narbethong area are

evidently Tertiary.

B.M.R. JERICHO 9 (map ref 37620277 Jericho)Object:^Follow up to Jericho 7 and.8 to examine the Injune Creek Group.This well was sited near the base of the Wallumbilla Formation so as to drill

through the Hooray Sandstone to the Injune Creek Group.

Results:^0 - 33 Cairozoic sediments33 - 198 Hooray Sandstone, light brown and red fine and medium sub

labile and labile sandstone.

198 - 331 Westbourne Formation of Injune Creek Group. Fine grainedlabile sandstone, siltstone and mudstone.

331 - 402 Adori Sandstone of Injune Creek Group. Coarse and very coarsequartz sandstone.

Comments:^The boundary between the Tertiary sequence and the Hooray Sandstoneis difficult to pick. It is possible that no Tertiary sediments were drilled and

that the uppermost part of the hole is deeply weathered Hooray sandstone.

The Westbourne Formation interval was picked by the lithological change

and confirmed by the Gamma Ray Log and palynological work. The thickness of the

Hooray Sandstone, compared with that indicated by gamma ray logs of nearby water

bores, is anomalously high. This suggests that a channel may have existed,at

the locality of Jericho 9, at the time of deposition of the Hooray Sandstone, but

there is doubt as to the position of the top of the Hooray Sandstone.

Arenaceous foraminif era (see Appendix 2) probably indicating a brackish

or shallow water marine environment occur at 230-240 feet. Their absence in the

remaining cuttings and cores indicate that these conditions were short lived and

local.

-8-

The results of palynological examination are included in Appendix 3.

Core analyses (see Appendix 5) show that the highest permeability

is from core 6 (2,500 - 5,500 millidarcys) while cores 1, 3 and 5 recorded from

250 to 750 millidarcys. Cores 3 and 4 generally recorded less than 100 millidarcys.

Cores:

CoreNumber

Interval LengthCored Recovery

1 65 - 73 81 0" 71 1"

2 132 -142 101 0" 9' 7"

3 192 -2011 6"t

9° 6" 81 8"

4 252 -262 101 0" 9' 8"

5 315 -325 10, 0" 10° 0"

6 392 -402 10° 0" 9' 3"

B.M.R. TAM 5 (5a) (map ref 42539194 Tambo)

Object:^(1) To examine the base of the Marine Cretaceous sequence and

to determine whether an arenaceous unit, similar to the Mimi Member of the

Blythesdale Formation could be recognised.

(2)To examine the upper and lower parts of the Hooray Sandstone

(3)To examine the Westbourne Formation.

Results:^0 - 731 6" Doncaster Member of the Wallumbilla Formation; thebasal part is not arenaceous and no equivalent of the Mimi Member of the

Blythesdale Formation was found.

731 6" - 225° Hooray Sandstone, 73161t-77'3" upper part, quartzose very

coarse sandstone, pebble conglomerate, sandy conglomerate. 77'3_.225' lower part,

sab-labile and labile sandstones, very fine and fine grained, some medium grained,

some mudStone and siltstone.

Comments:^The well penetrated all targets sought. Tambo 5a was drilled to corethe interval above Core I in Tambo 5. The thickness of the upper part of the Hooray

Sandstone, 3 feet 9 inches, is in contrast with the 100 feet in the type section,

12 miles east of Tambo 5.

The total thickness of the Hooray Sandstone in Tambo 5 was 151'6" while

in the-type section it was 250 feet. Tambo 5 was drilled on the crest of the Birkhead

Anticline whereas the type section of the Hooray Sandstone is in the syncline east

of the Birkhead Anticline. The thinning of the unit appears to have been entirely

in the upper part.

Fig.8.

B. M. R.^TA MB°^

N 0. 5 (5A)

GAMMA --27Ti^t^SP

Re.S istiVity S Pe 4o1

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rni ocY) 'noo .Lithology

Lt. ri-ht. o.vb.Iab. 1st. P. or

WI* 6; es. of Ira/colt11%4

cry miditonccapb. /amin.e.

Lt ?yin.^st..r.77.Ferr vl. banJs

Oft. opt- icy. nom/stone.H.^toasts dprima

i. Sfuuiy C.91. oinJ Qtl. . rilkle.- ub . lab. sst,^caraac. srltst.

cant F•ois.Ls^ ..s..

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m pry sub.lftb sst. - snicme.

voila i.-3.y awe&Cr. 01.14,0l.

mane. labile. 11F.—

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G 55/A2/20

-9-

Whilst the basal part of the Döncaster Member was not arenaceous

in this hole, it was arenaceous in cores 1 and 2 of Tambo 3, sited about half

a mile west of Tambo 5. This confirms that the arenaceous basal part of the

Tambo Formation is discontinuous.

Core analyses (see Appendix 5) shows that core 4 had the best

permeability, which ranged from 2110 to 2590 millidercys; cores 5 and 6 had a

vertical permeability of approximately 50 millidarcys and a horizontal permeability

of 180-500 millidarcys. Porosity and permeability tests on cores 7 and 8 were

unsuitable for testing or were very low.

The results of palynological examination are included in Appendix 2.

Cores:

I^CoreNumber Interval Length

Cored'^LengthRecovered

Tambo 5

1 75 -^80 51. 0" 31^0"

2 80 - 90 10' 0" 81 0"

3 90 - 97 71 0" 61^9"4 112 -122 101 0" 4' 4"

5 122 -1261 6" 4' 6" 4'^3"

6 1641^6" -1741 6" 101 0" 8110"

7 2061^6" -2161 6" 101 0" wion

0 2161^6" -2271 10' 6" 101^6"

9^' 269 -2781 6" 91 6" 0 1"

Tambo 5a

1 49 - 59' 7" 101 7" 10'^8"

2 59'^7" - 65' 7" 61 0" 61 0"

3 65'^7" - 75' 9' 4" 8'^6"

B.M.R. TAMBO 6 (map ref 39449115 Tambo)

Object:^To core the interval of the Gamma Ray anomaly which was thought to

coincide with the Toolebuc Limestone.

Results:^0 - 162 Allaru Mudstone

162 - 210 Coreena Member of Wallumbilla Formation

-1 0-

Comments:^The gamma ray tool produced an abnormal log as compared with the .logs of nearby water bores; the tool later failed to function. The greatest

gamma ray anomaly was 130-135 feet, though high readings occur from 127-1_62 feet;

below 162 feet the readings are still much higher than those above 127 feet.

The zone of greatest gamma ray anomaly was cored but the lithology was not typical

of the Toolebuc Limestone.

However palynological work (see A?pendix 3) revealed that the interval

120-150 feet had a low spore content which Burger regards (pers.comm.) as typical

of the Toolebuc Limestone. Micropaleontological work (see Appendix 2) has revealed

a swarm of Hedbergella ( GlobigeFina) in the interval 120-150 feet and a

minor concentration in the interval 50-60 feet. Crespin (1963 p.19) states that

Globigerina is typical of the Toolebuc Limestone and does not list it as being

present in either the overlying or underlying units.

It is therefore evident that the absence of the Toolebuc Limestone is

not erosional but due to facies change.

Cores:

CoreNumber

IntervalLengthCored

Recovery...^,

1 120 7^130^• 101 0" 91 1e

2 130 - 140 101 0" 101 0"

3 140 - 150 10' 0" 9' 2"


Object:^Evans (1966) refers to the conflicting information as to the age of the

Moolayember Formation in the Southern Jericho and Northern Tambo Sheet areas.

Samples collected from what was thought to be the top of this unit had produced

anomalous J 1 spores. This information was based on outcrop samples from an area

of poor outcrop, seismic shot hole samples from an area of sand cover, and cuttings

from South Pacific Limited. Birkhead No 1. To resolve this problem a hole was

drilled in an area of relatively good outcrop to obtain samples from what was almost

certainly the topmost Moolayember Formation for further palynological work.

Results:^0 - 36 Precipice Sandstone36 -25116" Moolayember Formation

rti tt‘ " t4t.dj. I^/VIOL! t 61,11. fre La

"tugif(( cut, .

1,4 I,^ta.4.41L. JUL Cv.a.cts.

citt-91.3?"7î'S- 1-24.° •

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31011. 5,0.5, A4L I cafauel 4.246..Lt.-5.y ALt (a wikift on. (.i-' c.hL drum.. .pyotta ? ). toe. to. cu. ....v., of-

f.^ 35t;

Lt.otocl-.411.. serteJ F. vciu,seJ^si e-l") tm-4:tv3-e-Ct7. $1t.

Fig .9.

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B.M.R. TAMBO No.7

To accompany record^1967/82

G 55/A2/22

Fig .11.

B.M.R. TAMES° No.8Ui

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G 55/A2/23

Comments:^Core 1 was cut at 92 feet (92-102') as above this depth the unitwas weathered. No spores could be recovered from the cores (see Appendix 4).

Core analyses (see Appendix 5) showed that the cores either had

no permeability or were unsuitable for testing.

Cores:

Core 1

2

92 - 102, cut 10'0" recovered 9* 2"

242 - 25116"cut 916" recovered 81 4"


Object: . Evans (1966) suggests that the base of the Punda Sandstone is time

transgressive.. Additional information was sought through Tambo 8 which was planned

to core the topmost Rewan Formation by drilling through the Dunda Sandstone.

Results:^0 - 40 Dunda Sandstone40 -217 Rewan Formation

Comments:^The hole was sited at the boundary between 1he Dunda Sandstone andRewan Formation. The lithology below 40 feet is typical of the Rewan Formation

with both red and green mudstones being present. Core I was cut as soon as fresh

material was encountered; neither core 1 nor core 2 produced spores (see Appendix 4).

Core analyses (see Appendix 5) showed that the cores either had no

permeability or were unsuitable for testing.

Cores:

^

Core 1^72 - 82 cored 1010" recovered 3'8"

^

2^207 - 217 cored 100" recovered 3'6"


Objects:^To core the Black Alley shale for palynological samples. These to

be used to determine whether the acritarchs, common in this unit in BMR Tambo 1,

(Evans, pers.comm.) persist in the Tambo area.

Results:^0 - 48 Blackwater Group48 - 120 Black Alley Shale

120 - 172 Peawaddy Formation

Comments:^The results of the palynological work appear in Appendix 4.Core analyses (see Appendix 5) showed that the cores either had no

permeability or were unsuitable for testing.

-12-

Cores:

^

Core 1^

92 - 97 cut 5' 0°, recovered 2' 7"

^2^

162 - 172 cut 10'0", recovered 1' 6°

B.M.R. AUGATHPLLA 1 (map ref 39138683 Augathella)

Ob'ect:^To provide a series of cores for porosity-?ermeability

measurements to check aquifer characteristics of a nearby poorly exposed

quart zose sandstone in the Mackunda Formation.^KResults:^Core analyses (see Appendix 5) showed that core 1 had a moderatevertical permeability (680, 970 millidarcys); horizontal permeability tests

could not be carried out. Core 2 was unsuitable for testing.

Cores:

CoreNumber

IntervalCoredlength

Recovery

1

2

3

80'

88'

981

6".

6"

6"

-^88'

-^98'

- 104'

6"

6"

8'

10'

51

0"

0"

6"

7#

9'

5'

51,

3.i"

6"

B.M.R. AUGAllitLLA 2 (map ref 39678677 Augathella)

Object:^To core coal horizons in the Winton Formation for quality evaluation.

Results:^A number of carbonaceous horizons were cored, the lowermost coreswere black and lignitic coal. Though they seem to be very extensive their quality

is such that they have no economic value in the forseeable future.

Details of the coal analyses are included in Appendix 1. Porosity-

permeability core analyses (see Appendix 5) showed that the permeabilities were

either low (70 millidarcys) or unsuitable for testing.

Cores:

CoreNumber

alInterval ngthCored

Recovery

1 28 -^38 10'^0" 101^0"

2 51^-^61 101^0" 10'^0"

3 81^-^91 10'^0" 9114"

4 91^-^101 10'^0" 10'^0"

5 133 - 143 10'^0" 9'^3-i"

6 143 - 153 10'^0" 10'^0"

Fig.12,

R. M. R. T P1 80^No. 9

11 %Cf. Stt^tat ( Suit, - LAD?)^rPLAALL.11cc41Tr. %...rt.

sub.h.b.sst^fa. 'reams of 'rano la S i

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6Lew.1(^*4. Lesc taa0. was. .

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G 55/A 2/24

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-13-

B.M.R. AUGATHELLA 3 (map ref 48808775 AuRathella)

Objects:^To check:

(1)The interpretation that here the sand plain is underlain by the

Doncaster Member of the ftllumbilla Formation.

(2)IfIf the upper and lower parts of the Hooray Sandstone can be

recognised in this area.

(3) The thickness of the upper part of the Hooray Sandstone.

Results:^0 - 20 Quaternary sand

20 - 72 Doncaster Member of the Wallumbilla Formation

72 - 128 Upper part of the Hooray Sandstone

characterised by the presence of sandy pebble conglomerate and quartzose sandstone.

128 - 320 Lower part of the Hooray Sandstone, characterised by the

presence of labile sandstone and almost total lack of conglomerate.

320 - 387 Hooray Sandstone or uppermost Westbourne Formations consisting

of fine and very fine grained thinly interlaminated labile sandstone and coaly

labile sandstone with some cross bedding.

Comments:^The well confirmed that the sand plain is underlain by the Doncaster

Member of the Wallumbilla Formation. It confirmed that the upper part of the

Hooray Sandstone is thicker in this area (56 feet) than on the Birkhead Anticline

(3 feet 9 inches in Tambo 5, 5a).

The interval 320 - 387 feet may be regarded as either uppermost

Westbourne Formation or lowermost Hooray Sandstone depending upon the criteria

used in determining the boundary between the two formations. The type section of

the Westbourne Formation in Amoseas Westbourne No.1 (Exon 1966) consists almost

entirely of shale and siltstone, with sandstone confined to thin beds in the

basal part. However in outcrop, Exon, Galloway,Casey and Kirkegaard (1966) recognise

a sandy upper part of the Westbourne Formation but this description seems to

conflict with the description of the type section. This upper sandy part of the

Westbourne Formation appears to be similar to the sandy interval between 320

and 387 feet in B.M.R. Augathella 3.

The lower part of the Hooray Sandstone in the type section (Exon 1966)

is predominantly fine grained sandstone and thus also appears to be similar to

the sandy interval between 320 and 387 feet in B.M.R. Augathella 3.

In the type section the Westbourne Formation has electrical log

characteristics typical of a shale sequence, and is further characterised by high

gamma ray counts. Electrical logs of the problematical interval in Augathella No.

3 are similar to those of the Westbourne Formation type section, but unfortunately

no gamma-ray log of the interval could be obtained due to caved hole.

-14-

However a gamma ray log of water bore 6398 about 6 miles SE of Augathella 3

dhows the Westbourne type anomaly clearly and establishes that in the water bore the

Hooray Sandstone is over 400 feet thick. This is nearly twice the thickness in

Augathella No. 3 if the interval 320 to 387 feet represents the Westbourne Formation.

In the absence of any obvious structural or environmental reason for such a variation,

this difference in thickness is unlikely.

Palynological determinations (Appendix 3) from cores in the problematical

interval indicate a J5 age of deposition. Unfortunately determinations elsewhere

show that both the uppermost Westbourne Formation and the lower part of the Hooray

Sandstone were deposited during this period of time.

In the opinion of the senior author the balance of evidence favours the

interpretation that the problematical interval should be referred to the lower part

of the Hooray Sandstone, and that there is thus no evidence for major variations

in thickness of the lower part of the formation.

Porosity-permeability determinations (see Appendix 5) showed that cores

4,5,6,7, 10 and 12 had permeability factors generally from 500 to 2000 millidarcys.

Cores 2 and 11 had horizontal permeabilities of around 340 millidarcys, the remainder

were from 60-150 millidarcys, very low to non permeable or not determined due to

unsuitability of core for testing.

Cores:

Core Number Interval Length Cored Recovery

1 62^-^71 9 7'3"2 71^-^78 7 5111"

3 78^-^87' 6" 9'^6" 9'^5..n

4 88^-^97'^6" 9'^6" 6'^9"

5 9716"- 106 9'^6" 1'^6"

6 106^- 115 9 51^9,,

7 115^- 125 10 9'11?

8 125^- 135 10 9'11"

9 135 •— 145 10^. 1'^6"

10 167^- 1771^6" 101^6" 9'^5"11 210^- 220 10 9'^7"12 220^- 230 10 91^6"

13 330^- 340 10 9'^7"

14 377^- 387 10 91^0"

B.M.R. AUGATHELLA 4 (map ref 37838514 Augathella)

Objects:^To core coal horizons in the Winton Formation for quality evaluation.

Results:^Core 1 (65-9416") recovered bright, semi-bright and dull coal. Details

of analyees of this coal are included in Appendix I. It is unlikely that the coal

will be of economic value in the foreseeable future.

k

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5(tillAtt^sy‘,./c03. SS t.^o otuJsto,,a_.

..50 Oh

L.bik sa.dst..e.1.14.1...,h *Joel^F. 5.e.4 s^1.6 o.^c ea. ty

5^-C. sst-.

^

ilere7 kv4:. ^ k,Lc 6.0,1 1.6,4 sitt.otc.-ye.

•^

g.^Cs *kg.,G55 /A6/4

To accompany Record 1967/82

300

340

360

-^ta.l.)i(c.^Noel so,hiti.0^Sam^v.,1-1). 5^Lc • cz-en <IAA t".

Z 144

-11k 1$t-4tH <Ile° s.dt-,

Fig .16.

No. 4-B.M.R. RUGATHELL R

tr,0

Litho-Logy

'freA^a.,-61 1,7 -0, Kt u-ci tov.e. a.14,1^ut 0

s.t,th4„,.)fis itt.:,^F

Pk y411.^ lt04.1

ye,)^1.4" EAR. CAJZta, 3.1,L;r-p, camuy,..

Lt).:.g,3^cct.e-10 • wt

ImUri ( C^• N6,„...„3. c„„io.^(Ctis.F - 3kv.)^ssE.

F - v F. (4.41e. Js L." • 04^<ALL.. v• F• s


G 55/A6/5

-15-Cores:

^

Core 1,^85 - 94'6", cored 916", recovered 6'9"

^

2,^95 - 104'6", cored 9'6", recovered 7'2"

B.M.R. ADAVALE 1 (map ref 33008902 Adavale)

Objects:^To core coal for quality evaluation.

Results:^Cores 1 (50-60'3"), 3 (97-107), 4 (107-117) and 7 (165'2"-174'4")recovered bright, semi bright and dull coal. Details of analyses are included in

Appendix I. It is unlikely that the coal will be of economic value in the foreseeable

future.

Porosity-permeability analyses (see Appendix 5) showed that the cores

either have no permeability or were unsuitable for testing.

A plug from core 4 (11316"-114'1") has an average apparent grain .density,

including non interconnected voids, of 3.05 gq/cc. It is a fine silt size carbonate

rock, with only a few detrital grains. It is made up of laminae of brownish grey

material with thin lenticular interlaminae of white milky material.

A positive phosphate test was obtained using ammonium molybdate; however

the shapiro test indicates that the rock contains less than 5,% phosphate and probablyless than 1%. Thin section showed that the rock was very fine grained silt size and

composed of carbonate minerals, about 1% quartz and a trace of plagioclase feldspar.

When acid etched the rock was only weakly stained by Alazarin Red S indicating that

only a minor proportion of the carbonate was calcite. The milky white material was

identified by x-ray diffraction as mainly calcite with some siderite, and the brownish

grey material as mainly siderite with some calcite (C.D.Branch,BMR, pers.comm.).

The specific gravity of siderite is 3.8 which accounts for the high specific

gravity of the rock. The total thickness of the sideritic bed was 4i inches (113 feet

11 inches to 114 feet 4 inches). Re-examination of the non coaly parts of the

cores suggested that siderite, in addition to being common in certain horizons was

disseminated to a varying degree throughout the rest of the cored intervals, being

most common in the mudstone.laminae. This was proved by x-ray diffraction

(C.D.Branch, BMR, pers.comm.).

These results are of particular interest as they may well be the

clue to the apparently random positioning of the ironstone beds in the weathered

profile of the Rolling Downs Group. Siderite on weathering would lopfse carbonate

ions into solution and have iron oxide deposited in its place. It could be suggested

that the location of the iron stone is controlled by the presence of calcareous

layers. However the source of the Fe ions is still unexplained. If the iron were

to be supplied by the enclosing beds. then greater iron leaching close to the ironstone

body and progressively less leaching away from them would be expected, but this does

not occur.

With siderite as the host mineral, only the carbonate ions have to be

removed with simultaneous oxidation of the Fe ions.

-16-

Cores:

CoreNumber

IntervalLengthCored

Recovery

1 50 -^601 3" 101 3" 101 3"

2 90 -^97 71 0" 71 0"

3 97 - 107 101 0" 101 0"

4 107 - 117 101 0" 71 6"

5 145 - 155 101 0" 91 6"

6 155 - 1651 2" 101 2" 101 2"

7 16512"- 174' 4" 10' 2" 91 6"

CONCLUSIONS

The drilling is a useful and necessary adjunct to the field mapping.

It is necessary for confirming and supplementing of field information. This is

especially so in areas of poor outcrop, thinning and facies variation. It is

essential for the recovery of fresh samples for palynology, coal analysis,

porosity and permeability determination and petrology.

Most of the targets in the drilling programme were achieved.

The area dominated by sand plain between the outcrop of the Hutton

Sandstone and the Rolling Downs Group was found to be mostly underlain by Tertiary

sediments and not the Injune Creek Group (Jericho 7,8,9). It is probable that a

Tertiary valley was scoured through this country to form a tributary to the Alice

River.

The Cretaceous mapping was confirmed by Tambo 5,6, Augathella

1,2,3,4 and Adavale 1.

The basal glauconitic sandstones of the Doncaster Member of the

Wallumbilla Formation were proved to be discontinuous (Tambo 5,5a). The thinning

of the units over the Birkhead Anticline was also proved.

Further information regarding the lithology, thickness and

distribution of the Doncaster Member of the Willumbilla Formation as well as the

upper and lower parts of the Hooray Sandstone was obtained (Tambo 5, 5a, Augathella 3).

Cores of Cretaceous coal for analysis were successfully obtained

(Augathella 2,4, Adavale 1), the details of the analyses are included in Appendix 1.

The coal was found to be of no economic value in the foreseeable future.

Rg .17.

t_lfhoHgvAd,^v 3,

Or^07Ar

at;^KC:

f^F.^Jobs.e sit

OK -^ cA.ko,

=SW, 004c,

CO..‘ê.:

Vf.1u6-1.-6? ssf.-Gwk.sLt wt.l.Pale_ j -I.,^-F. L. 41,avvion.^;as-

wt4,^C404. PA,^10.44; 10,.*Ci 1.0.1•10.

V: Calbrzt. 11. k 1I( ^kk:0•01.10.0) ;at

Paa....7elt^tfr.^f-û-A- men'

A.,..41 '0...4.

^F. Cct ôf iat^t (.143 ...racist-.isfr 0.m.) C^,c'J A. iJ ft'

^- ^tali. IS&^•^Lak*.

tra.-4.4.St-oraiL

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1

•

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100

tip

r 6o

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200

220

1:

-41

-17-

Samples sought for palynological examination were also obtained

(Jericho 4, and 6, Tambo 7, 8 and 9); the results of this work are includedin appendices 3 and 4.

The Carey rig was totally unsuitable for Geological Branch work

because of its inability to attain target depths deeper than 50 feet in the

Bowen Basin and 150 feet in the Eromanga Basin.

ACKNOWLEDGMENTS

The authors would like to thank Dr P.R. Evans for writing

appendix 4. This was based on work done while he was with the Bureau ofMineral Resources but entirely written up after leaving this organisation.

-18 -

REFERENCES

CRESPIN, I., 1963 - Lower Cretaceous Arenaceous Foraminif era of Australia.

Bur. Miner.Resour.Aust.Bull. 66 , 16

CROOK, K.A.W., 1960 - Classification of Arenites. Amer. J. Sc., 258

419 - 428.

EVANS, P.R., 1966 - Palynological Studies in the Longreach, Jericho, Galilee,

Tambov Eddystone and Taroam 1:250,000 Sheet areas, Queensland.

Bur.Miner. Resour.Aust. Rec. 1966/66 (unpubl.)

EXON, N.F., GALLOWAY, M. C., CASEY, D.J. and KIRKEGAARD, A. G., 1966 - The geology

of the Tambo, Augathella and Bladkall 1:250,000 Sheet areas, Queensland.

Bur. Miner. Resour. Aust. Rec. 1966/89 (unpubl.).

VINE, R.R., JAUNCEY, W., CASEY, D.J., and GALLOWAY, M.C., 1965 - Geology of the

Longreach - Jericho - Lake Buchanan area, Queensland. Bur. Miner.

Resour. Aust. Rec., 1965/245 (unpubl.).

WENTWORTH, C.K., 1922 - A scale of grade and class terms for clastic sediments.

J. Geol. 30, 377 - 392.

N.F., 1966 - Revised Jurassic to Lower Cretaceous stratigraphy in

the south-east Eromanga Basin, Queensland. Qld Govt Min. J.

67,'232-238.

-1-

APPENDIX I

RESULTS OF COAL ANALYSES CARRIED OUT BE GEOLOGICAL SURVEY OF QUEENSLAND

B.M.R. Augathella & Adavale Scout Bores

Coals from boreholes at Adavale and Augathella were received from

the Bureau of Mineral Resources for examination and analysis. The .coal sections

were logged and certain portions were then selected for analysis (Proximate

Analysis, Sulphur, Calorific Value, Specific Gravity and Coking Tests).'

Portions were also selected for petrographic examination and Ultimate and

Proximate Analysis. Results of analyses are shown on the attached tables.

A report on the petrographic examination is appended, together with typed

descriptions of the seams and graphic logs of the sections sampled.

The chemical, physical and petrographic data indicate that these

coals are of low rank and are non-coking.

-2-

Petrographic Studies of Adavale No.1 and Augathella Nos. 2 and 4 Vitrains

Lenses of vitrain representing compressed coalified fragments of

wood up to about 1 inches in length occurred in the coal seams found in the

Adavale No. 1 and Augathella No. 2 boreholes. This material was very similar.

in appearance to jet found in the Lias of Yorkshire, England.

In order to assess the rank of the ,coals in Adavale No. 1 some of

these lenses were removed from two of the seams for chemical analysis and

reflectance determinations, the results of which appear in the table.

The extremely high moisture contents of these samples made preparation

for reflectance determinations difficult. Alternative absorption of moisture

and drying out during and following the preparation technique tended to crack the

polished blocks and impart an uneven surface. Even though determinations were

Made directly following preparation, the uneveness which developed would certainly;

have introduced some error into the results and would have been responsible in

part for the fairly large variation in readings. However, most of this variation

is attributed to the marked heterogeneity of the samples which showed a cryptic

arrangement of cell walls and fillings under the microscope. The highest readings,

for example, were obtained on material which could have been phlobaphenite. Due to

the small size of most occurrenées of each entity and to the complexity of the

structure, selection of any one type of material for reflectance determinations

was impossible. The average of the readings, therefore, represents the whole of

the material in the vitrain and, as such, is more properly related to the chemical

analysis of the material than a series of readings on a certain entity.

Errors resulting from uneven surfaces and the inherent variation

due to the heterogeneity of samples, both referred to above, could have given rise

to falsely high bireflectance values for such low rank coals. For this reason

only maximum reflectance determinations were made. .

Both reflectance determinations and chemical analysis indicate an

extremely low rank for these samples. Although they should be classified as lignites

on the basis of their reflectances and carbon contents, their hydrogen contents are

unusually low even for sub-hydrous lignites so that these samples would lie well

apart from Seylerts coal band. However, coals with such an anomolous carbon-

hydrogen relationship have been previously recorded in Queensland.

IonaN

B.frtg . 4L/G4TNE.I.4/1 V.Z, q- A PA V Aze- N° /^Ft3 1^(5cozir -2E5oRE 5 )

Co, 4 5 ecrio.vs 544/c2GRA Pliic 1 065

,4LIGATHELL A0. Ai JOSe r 41:2 oR f

gig a E ko-RC if*

134'C

tin

LI\V%

AU 6A MEI/^(05(04TNIMAE Aucroie1inC8Aug boxiTAISole Ap4vAccolAIOY,60, Al 1 Ooke..94,01e Al (4116 Hie'ÂPrRte 41° Wc q 3^wieLE Ai° R

//•4 o 5.,

im of.4446405404,-,va,e04„5,4/yo 0-N°

/z '/1"

882 `

L E G END

5CALE or iNcliES

-1•4-^0^11 -

141'5"

1 72

1 741 '4"

5R / 6 11 T Com. II A AIL 7 6000fli I NT ER13/1AJPED H4 /AM. 7 DaLl. COAL ^TULL COAL.

(4)Emi 13,647fir)(DULL, SRsi;HT) ('-5E/ti OLILL)c^?DI-11.x-)Î Di/ Liâgl4tirCau.

To accompany record 1967/82 Appendix 1.

0/A115

-3-

TABLE 1

Intervals analysed from Augathella Nos. 2 and 4 & Adavale No. 1 Scout Bores

BoreholeSampleNumber

Interval

From To

Augathella No. 2 1191 134 -^6 135 -^5iAugathella No. 2 1192 140 -^3 141 -^5i

Augathella No. 4 1193 86 - 11 88 -^2

Adavale No. 1 1194 171^-^8 172 - 11

Adavale No. 1 1195 172 - 11 174 -^1i

TABLE 2

Results of Analyses

SampleNumber 1191 1 192 1193 1194

__1195 ,

Moisture % 26.7 21.4 27.2 23.2 25.7

Volatile material % 26.7 30.4 36.7 29.1 29.4

Fixed carbon % 30.8 37.6 29.1 35.4 32.9

Ash % 15.8 10.6 7 12.3 12

100. 0 100.0 100.0 100.0 100.0

BTU/lb. 6690 7850 7610 7730 •^7460

Sulphur % 0.39 0.50 0.68 0.49 0.41

COKING TESTS

Classification NN NN NN NN

Swelling Index 0 0 0 0 0

Specific Gravity 1.406 1.406 1.333 1.397 1.377

-4 -

TABLE 3

Reflectance Data and Chemical Analyses of Vitrains from

Adavale No. 1 borehole

Depth from 57' 4" 1731 Ge

Depth to 58'0" 174' 0"

Maximum Re-flectance at

5390A

Air

Oil RI =^1.515

5.96

0.217

6.62

0.357

Carbon 73.4 .^74.4

Hydrogen 2.7 4 . 1Dry^ash Nitrogen 0.9 0.9

free Sulphur 0.7 0.8

Oxygen (diff) 22.3 19.8

Carbonates 0.55 0.53

,Moisture 27.5 29.1

Air dried Ash 4.8 5.3

Volatile Matter 36.5 32.9

Fixed Carbon^, 31.2 32.7

Dry ash free Volatile Matter 53.9^- 50.2

Analysis sample R.C. 1191

134'6" - 134111im(015ill)

134'11i" - 135t5i"

(014")

(No analyses undertaken)

1361 1" - 13617ile(014")

Augathelia No. 2

134'6"-1351Y0

Rec, 0'5i"

13jt dull coal F; numerous flattened rods of vitrain.

i

---m dull coal, occas. flattened rods vitrain." mainly bright coal." mainly dull coal." dull coal.

im dull & bright coal.--4m dull coal.

bright coal.ie, b.c.

Rec. 0'6"

-le interbedded dull & bright coal.111°' semi bright coal.3e bright coal, some fine dull coal lam.1" dull & bright coal, interbedded, dull ;,bright.im bright & dull coal, interbedded, bright 7. dull.e dull coal (fusain)

semi bright coal.tm dull & bright coal interbedded.im semi bright coal.

dull coal c fine bright laminae.e fairly bright coal

Rec.

semi bright coal.r mainly dull coal with few bright lam.im mainly bright coal.

dull coal, some fine bright lam.dull coal--,carb. shale.

3, interbeddednterbedded dull & bright coal.e mainly dull coal.e bright .--4semi bright coal.im dull coal with thin bright coal laminae; some

slickensiding.:le bright coal.

mainly dull coal with bright coal lam. & blebs.4" semi bright & dull coal interbedded; bright dull.it' semi bright coal.

136'7i." - 13712i"^ Rec. 0'7"

7" med. brown, sl.carbonaceous shale.numerous plant fossils throughout, allfragmentary, many cmall

Analysis sample R.C. 1192^140'3"- 1411,5i"

14013" - 140110"^ Rec. 014"(17")

" mainly semi bright coal, some dull coal.1-4" mainly dull coal with semi bright coal laminae

& blebs. Top i" semi bright coal, blebs very small& finely interspersed in the dull coal.

1" dull coal, fusain with fine laminae of semi brightcoal. Several larger fragments of semi-brightcoal at top.^ •

i" semi bright & dull coal, coarsely interbedded.b.c. - larger fragments are coarsely interbedded.

• dull & semi bright coal, and3" loss dull coal with fine semi bright coal blebs.

(1i"). The smaller fragments were a mixture of semibright coal and fusain fragments. (*").

140110" - 14115i"(017i")^

Rec. 017i"

-i" mainly dull' coal, fine blebs & laminae of send brightcoal.

A.114 semi bright coal.1" dull. & semi bright coal coarsely interbedded.ise, mainly dull coal C fine blebs of semi bright coal.ile, mainly dull coal 3 coarser lam & blebs of semi bright

coal.r mainly dull coal with fine blebs of semi bright coal.1' semi bright coal with fine lam. dull coal; yellow

encrustation on outer surface of core. (?S8)1-24');" mainly dull coal C coarser & numerous blebs of semi

bright coal.i " dull & semi bright coal, finely interbedded." mainly dull coal with numerous fine blebs of semibright coal.slickensiding throughout.


141110" - 14214"(015P)

Rec. 015i"i" semi bright coal.2-i" medium brown, sl.carbonaceous shale with bottom

ie, mainly dull coal & coarse laminae of semi brightcoal. Fine laminae of semi bright coal throughout.

e dull coal to carb. shale with numerous fine laminaeof semi bright coal, & several coarse blebs.

" semi bright coal.i4" dull coal.

semi bright coal, some dull coal (minor)11e, medium to dk.brown shale with several coarse & numerous

fine lam. of semi bright coal (carb.sh.).slidkensiding in coal.

1431^- 14412"(18") Rec. olai"

3-i" med. brown carb.sh.; numerous plant fossils(fragmentary).

i" semi bright coal lam. @ li". Many small semi brightcoal lam.; some slickensiding0

im semi bright coal C fine laminae of carb. shalecarb.sh. with fine laminae of semi bright coal.A thick semi bright coal bleb at bottom.

im semi bright coal with few thin interbedded dull coallaminae0

im mainly dull coal -6 interbedded semi bright coal laminae.2" dull (fusain) coal with numerous fine semi bright

coal blebs. Several semi bright coal laminae ((e)@ie.. Some carb0 shale fragments.

i" semi bright coal.

Augathella No. 4

Analyses sample R.C. 1193^86111" - 8812"

86111" - 8717"(018H) Rec. 0'8"

-' dull coal some semi bright coal blebs & laminae.141" dull coal with numerous fine semi bright coal blebs

& laminae.i" semi bright coal.1" dull & semi bright coal, finely interbeddedLim dull coal C some fine semi bright coal blebs

dull- coal with. fine laminae of semi bright coal &4some large blebs0

li" dull coal, occasional semi. bright coal blebs & lam.FeS0 nodule (aH diam.) at base.

im.dull & semi bright coal, coarsely interbedded.i" dull coal.

semi bright coal.

8717" - 8812"(017")^ Rec. 017"

1" dull coal with semi bright coal blebs.semi bright coal.

4" dull coal, with fine semi bright laminae.i" semi bright & dull coal very finely interbedded

(semi bright^dull).1.1m dull, coal with semi bright coal blebs & laminae.

semi bright coal.dull coal with semi bright coal laminae & blebs.

e dull & semi bright coal interbedded.


88'10" - 89'4"(0'6")^

Rec. 0'6"

6" med.--*dk. brown carbonaceous shale with numerousplant fossils (fragmentary); some slickensides;some semi bright coal lam, in top 1im.

89'11" - 9017"(0'8")

91'1" - 91'9"(018")

95' oi" - 95'6"(015i")

Rec. 0'8"

8" dk. brown carbonaceous shale, numerous fragmentaryplant fossils; some slickensiding. some semi brightcoal laminae, b.c.

Rec. 0'8"

1" dull coal with semi bright coal blebs & laminae.i" semi bright coal.i" dull coal with large (-41") semi bright blebs & laminae.

(1/16").Ilm semi bright coal with very minor dull coal laminae.lim dull coal (fusain?) with fine semi bright blebs & lam.2m semi bright coal.im b.c.coal.1" semi bright coal with minor finely interbedded dull coal.

1" dull coal, some fine semi bright coal blebs.

le semi bright coal.3" dull coal, semi bright coal laminae." semi bright coal.

1i " dull coal with numerous *" blebs & laminae of semibright coal.

i" semi bright coal.b.c.

Rec. 0'5i"

5i" med-4dk. brown carb. shale with fragmentary plantfossils; some slickensiding.

Adavale No. 1

5016" - 5110"(016") Rec. 0'6"

6" dk. brown carb. shale with numerous plant fossils& slidkensides.

im dull coal with fine semi bright coal blebs at 5".

51' 0" - 51'7"(017")^ Rec. 017"

7" dk. brown carb. shale with numerous plant fossils(fragmentary) and some fusainous fragments; some thinlaminae of coaly shale.

Numerous slickensides; some occur around a bleb ofsemi bright coal. (? due to compaction or drilling)

55'8" - 5613"(17") Rec. 0'7"

;•" semi bright coal; some slickensiding on upper2surface, ribbed stem,

q" dk. brown carb.sh0 with some a" lenses of semibright coal (compressed branches,), slickensidingthroughout.

5613" - 56' 9"(016") Rec. 0'6"

dk, brown carb. shale with some^laminae of semibright coal.semi bright coal) one compressed branch; slickensidedlower surface.

4" dk0 brown carb0 shale with some,. laminae of semibright coal; slickensiding throughout. Quite a fewwoody fragments in bottom

Reflectance data and chemical analyses of vitrains carried out on interval 5714"-5810"

57'4" - 58'0"(18") Rec. 018"

Core broken, with approx. aiu of core intact at top.dull coal with semi bright coal blebs.semi bright coal,dull coal with fine & coarse semi bright coal blebs;FeC01 band.The !6emaining fragments are of similar composition.Some large partially compressed branches. All core isgreatly slickensided.

5810" - 581 6"(16") Rec. 0'6"

Core broken & slidkensided.6" dk. br. carb0 shale, some fragmentary plant fossils.

some thin (in &^ie.) lenses of semi bright coal.Slightly coaly horizon (i-") at top.

5911" - 5918"(17") Rec. 017"

dull coal.L" semi bright coal0iil dull coal with few semi bright coal blebs.4 n dull coal with numerous semi bright coal blebs & laminae.

1111dull coal.semi bright & dull coal coarsely interbedded.

" dull coal & few semi bright coal. blebs./" dull & semi bright coal, finely interbedded.1" semi bright coal with ie, dull coal laminae, at-1"2 •r dull coal, few semi bright coal blebs.2" dull & semi bright coal laminae interbedded.

All dull coal has very high content of fusain.

3,,

17,"

-10--5918" - 6013"(017")^ Rec. 017"

Core broken, approx. 3" of intact core onlyremains probably from the top section.

1" semi bright & dull coal, finely interbedded.

1

" dull coal." semi bright coal with one fine ?canneloid coal lamina.." semi dull coal.

I " semi bright coal." semi dull coal." semi bright coal.

ir semi bright & semi dull coal coarsely interbedded.

Note: "semi dull" erected here to describe coal between dull & semi bright.This would probably fall into "semi bright" coal category if the rank wasslightly high. The rank of these coals in the higher sections are distinctlylower in rank, showing less compaction, etc.^Some slickensiding.

1o2t3i" - loVio"(olGiu)^ Rec. ol6i"

I " semi bright coal, minor dull coal.

" dull coal, some semi bright coal blebs.4" semi bright coal.^.1" dull coal, semi bright coal blebs & laminae.

1 " dull coal with very fine se bright coal blebs1 semi bright coal.

mi7

& some large (i") blebs & laminae.i" semi bright coal with dull coal laminae.—' semi bright coal C one -1" dull coal lamina at i".1 dull coal with fine semi bright coal. lam. & blebs.

-4-1 semi bright coal.

163 ' 9" - 1 64'3"(01 6")^

Rec. 016"

Core entirely broken.dk. brown carb. shale, some plant fossils (fragmentary),some slickensides. Several semi bright coal fragments,one being 1" thick. Other thin laminae of semi brightcoal throughout.

16413" - 16418"(015")^ Rec. 015"

Core entirely broken.dk. brown carb. shale, to coaly carb. shale;some thin laminae & blebs of semi bright coalthroughout; closely slickensided.

16512" - 16519i"(Oil")^ Rec. 017"

Ti" med. to dk. gy. brown shale with numerous fragmentaryplant stem fossils. Many thin semi bright coallaminae throughout; slickensided.

166110" - 16715"(17") Rec, 015i"

r dull coal.le dull coal with semi bright coal blebs.im semi bright coal.im dull coal, few semi bright coal blebs.1" dull coal with coarsely interbedded semi bright coal

blebs & laminae. ie, semi bright at top.ie. semi bright coal.131 dull coal with semi bright coal laminae & blebs." semi bright coal with some dull coal lam.

e semi bright coal.r dull coal coarsely interbedded with semi bright •

coal laminae.1" dk. brown carb. shale.

Analysis sample R.C. 1194

1711 8" - 1721 4"(18")

17118" - 172111"

Rec. 017f,"

17" dull coal.e semi bright coal with minor lam. of dull coal.im dull coal with send bright coal (fine) blebs & .

laminae.r semi bright coal with very fine dull coal lam.1im dull coal with semi bright coal, blebs & lam.

im dull & semi bright coal coarsely interbedded.1im dull coal with fine semi bright coal lam. & blebs;

several large (*") semi bright coal blebs.•m semi bright coal with dull coal laminae.im dull coal with semi bright coal blebs & lam.t' semi bright coal with fine dull coal lam.im dull coal with semi bright coal blebs.im semi bright coal.'

slidkensiding.

172'4" - 172111"(017") Rec. 0'7"

Core entirely broken. The larger fragmentsconsisted of dull coal with occasional fine laminaeof semi bright coal.

Analysis sample R.C. 1195^172111" - 17411-i"

172'11" - 17316i"(017i") Rec. 017i"

im dull & semi bright coal, coarsely interbeddedim dull coal, some fine semi bright coal lam.t' dull & semi bright coal, coarsely interbedded.

semi bright coal with fine laminae of dull coal.it" dull & semi bright coal coarsely interbedded.if semi bright coal finely interbedded with dull coal,

several^blebs of semi bright coal.dull coal (fusain)

1e semi bright coal with finely interbedded dull coal.r semi bright coal.

-12 •

Reflectance data and chemical analyses of vitrains carried out on interval 17316i" -

174' 0"

17316e - 174111e(016")^ Rec. 017"

le semi bright & dull coal, coarsely interbedded.le semi bright & dull coal finely interbedded.e semi bright coal, with some finely interbedded dull

coal. -im dull & semi bright coal, finely interbedded. Bottom

-171'-iffl more fusain.im semi bright coal.e dull coal with numerous coarse & fine semi bright

coal laminae & blebs.1" dull coal & carb. shale with large blebs of semi

bright coal.1" dull coal with finely interbedded semi bright coal

blebs & laminae.iffl dull coal with some fine semi bright coal blebs;

some carb. shale. (br.)

I

" dull & semi bright coal coarsely interbedded." dull coal, C few very fine semi bright coal laminae.m semi bright coal with some minor dull coal.im dull coal, B few very fine semi bright coal laminae.

Note: Augathella No. 2 core split when wet. Perhpas this was because they had beenin perforated tubing and had dried out.

APPENDIX 2

MICROPALAEONTOLOGICAL EXAMINATION OF B.M.R. JERICHO 9,TAMBO 5, 6,

AUGATHELLA 1, 29_1, and ADAVALE 1.

by

G.R.J. Terpstra

INTRODUCTION

Core and cutting samples have been examined from the B.M.R. ScoutBores Jericho 9, Tambo 5, 6, Augathella 19 2, 3, and Adavale 1, Queensland.The results of the examination are given below.

OBSERVATIONSJericho 9

Cutting samples have been examined from 180 - 350 feet. A fewindeterminate arenaceous foraminifera were observed in the cuttings 230 - 240feet, which may indicate a brackish water or very shallow marine environmentof deposition.

The lithology of the washed residues in general is:-

180 - 210 feet, sandstone

210 - 350 feet sand, shale, lignite and some pyrites.

Tambo 5

Cutting samples have been examined. from 0 -. 278 feet. Nomicrofossils occur and there is no indication of marine deposition. The lithologyof the washed residues in general is:

0 - 101 feet weathered. shale and sand with occasional gypsum

101^278 feet 'sand and shale with lignite and some pyrites.

Tambo 6

Cutting samples have been examined at regular intervals of five feetfrom 0 - 135 feet and from 175 - 210 feet; cores were examined from 120 - 150feet. The forms listed are rare or uncommon except where otherwise noted.

0 10 feet no microfossils

10 50 feet Inoceramus prisms, Radiolaria sp.

50 60 feet Hedbergella infracretacea (Glaessner)

Trochammina sp.

Radiolaria sp.

Inoceramus prisms

60 125 feet Radiolaria sp. including Dictyomitra sp.

Inoceramus prisms

Megaspores

-2-

Core 1^120' - 1221 11-im.

Hedler6211a infracretacea (Glaessner)

(Common occurrence)

Inoceramus prisms

Radiolaria sp.

Core 2^130' — 140'

Hedbergella infracretacea (Glaessner)

(Common occurrence)

Inoceramus prisms

Radiolaria sp.

Fish Teeth

Core 3^1401 - 149' 2"

E21122rEella infracretacea (Glaessner)

(Common occurrence)

Inoceramus prisms

Radiolaria

Shell fragments

125 - 135 feet

Hedbergella infracretacea (Glaessner)

(Common occurrence)

Radiolaria sp.

Inoceramus prisms

175 - 210 feet

Trochamminoides coronus Loeblich and Tappan 1946

Radiolaria sp.

Inoceramus prisms

Megaspores

The microfossils observed indicate a Lower Cretaceous (Albian) age and

marine deposition for the strata examined;

aAlatEmlia, infracretacea (Glaessner) N. Ludbrook 1966,includes such species as:-

Globigerina infracretacea Glaessner 1937

Globigerina cretacea Crespin 1953

Globigerina planispira Crespin (not Tappan) 1953

Specimens identified as Trochamminoides coronus Loeblich & Tappan

by Crespin (1963) have recently been re-identified as: Haplophragthoides perturbans

Ludbrook, 1966.

-.3-

The lithology of the washed residues in general is:

0 - 40 feet weathered shale with some lignite

40 - 135 feet mainly grey shale, some sand and lignite

175 - 210 feet grey shale, sand, lignite, pyrites and some glauconite.

Augathella 1

Cutting samples have been examined from 17 - 80 feet and a coresample from 88'6" - 986".

No microfossils occur and there is no indication of marine deposition.The lithology of the washed residues in general is:

17' - 59c shale and sand with siderite591 — 981 sand, shale and lignite

Augathella 2

Cutting samples have been examined from 0 - 133 feet. No microfossilsoccur and there is no indication of marine deposition.The lithology of the washed residues in general is:

0 - 38 feet sand and weathered shale

38 - 133 feet sand, shale and lignite

Augathella 3

Cutting samples have been examined from 0 - 60 feet.

No microfossils occur and there is no indication of marinedeposition.The lithology of the washed residues in general is:

0 - 60 feet sand and shale and some lignite at 30 feet.

Adavale 1

Cutting samples, taken at regular intervals of five feet, havebeen examined from 15-240 feet. No foraminif era have been encountered butmegaspores occur fairly frequently between 40 and 195 feet.The lithology of the washed residues in general is:

15^35 feet weathered shale40 - 195 feet some shale and sand and much. lignite195 - 240 feet much sand, some shale and some lignite

There is no indication of marine deposition.

The megaspores indicate a Lower Cretaceous age.

REFERENCES ,

CRESPIN, Irene - 1963 - Lower CretaceOus arenaceous foraminifera of Australia.

Bur. Min. Resour, Aust, Bull. 66.,

LUDBROOK, Nelly H., - 1966 - Cretaceous Biostratigraphy of the Great Artesian

Basin in S.A. Dept of Mines S.A. Bull. 40

APPENDIX 3

PRELIMINARY REPORT ON THE PALYNOLOGY OF

SHALLOW HOLES IN THE CENTRAL QUEENSLAND AREA

by

D. Burger

Cores from shallow holes, drilled in the TAMBO - AUGATBELLA -JERICHO 1:250,000 sheet areas were examined for spores, pollen grains andmicroplankton. Comparison of stratigraphic position of the samples withpalynological age is given in Table 1.

TABLE 1.

Bore Core Depths MFPNo. Formation Unit Age

AugathellaNo. 4

12

89'10"97

44124386

Winton Fm,11

Ku? U.Cretac?

1 123'^5" 4379 Toolebuc? K2a? Albian MTambo No. 6 2 133^4 4380 u u It LM3

3 149 4381 u u u LM

1 63 ^4." 4382 Marine Cretac. K1 Aptian LM11 67^9 4383 itû K1b it Ml

Augathella 3 81^10 4384 Hooray Sst.uû^Ld

K?^? LNo, 3 11 214^4. 4385 K1(?a) Neocomian

14 378 4387 uÎt .75Û.Jurassic

1 78' 4181 Hooray Sst. (Lr) K1(?a) Neocomian2 88 4182 ItÎtÎt tl tt M

Tambo No. 5 3 95 4183 uûû u u L5 122 4209 11^11^11 J5-6 U.Jurassic L9 275'^5" 4211 Westbourne Fm. u II L

3 1991^6" 4423 Hooray Sst. j5 U.JurassicJericho No. 9 4. 255^6 4424 Westbourne Fm. 11

5 325 4426

L Low spore recoveryM Microplankton: 3 Odontochitina operculata Dinoflagellate Zone

1 Dingodinium cerviculumMFP B.M.R. registered sample preparation number prefix.

-2-

DISCUSSION.

Spore units J5-6

Microfloras belonging to units J5-6 are known from the upperBirkhead Formation, Westbourne Formation and Hooray Sandstone in the easternEromanga Basin (Evans 1966b,d). Recent palynological information from theSurat Basin has led to a subdivision in the interval of these units and aredefinition of unit J6 (Burger 1968). The vertical range of the unit includesthe upper part of the Gubberamunda Sandstone and the Orallo Formation.

Undifferentiated J5-6 microfloras were recognized in Tambo 5 fromthe Hooray Sandstone (core 5) and the Westbourne Form&tion (core 9). Poorspore recovery, due to unfavourable fossilization conditions prevents the positiveidentification of J6.

Unit J5 was recognized in the Westbourne Formation of Jericho No.9 (cores 4, 5) and the basal Hooray Sandstone of Jericho No. 9 (core 3) andAugathella No. 3 (core 14).

Spore units K1a-b

The earliest Kla microfloras are recorded from the uppermostOrallo Formation in the Surat Basin (Burger 1968) unit Kla extends upwards ashigh as the base of the marine section of the Blythesdale Formation. BasalKI microfloras are recorded from the Hooray Sandstone in the eastern EromangaBasin ( Evans 1966-b).

'Undifferentiated Kla-b microfloras are identified, from the Hooray Sandstoneand overlying Marine Cretaceous in Tambo No. 5 and Augathella No. 3. Again,insufficient spore recovery prevents the positive recognition of unit K1a. UnitK1b however is recognized in the basal Marine Cretaceous from Augathella No. 3(core 1, sample 4383). The associated microplankton assemblage indicates theDingodinium cerviculum Dinofiagellate Zone. The presence of Cabelosporites stylosus in this microflora,,together with some microplankton species (Canningian. sp. Fvans 1966-e, p. 19; possibly also of Micrhystridium sp.) forms a combinationwhich is known only from the marine Mimi Member, of the Blythesdale Formation(Evans 1966-e; Burger 1968).

Spore units K2

The spore zonation in the K2 units, beginning with the first appearanceof 222-120.2na_Rmalaa (Evans 1966-d) is at the present time being studied inmore detail in the light of recent spore information obtained from the centraland northern Eromanga Basin.

Although C4Raradoxa was not encountered in the samples from Tambo No.6, its earliest occurrence coincided approximately with the base of theOdontochitina operculata Zone ( Evans 1966-e), and as Such the K2 unitsare thought to be represented in the nicrofloras of TambO.No. 6. Rare sporesdescribed by Dettmann (1963) from her Paradoxa Assemblage and recovered fromcore 1 (sample 4379), together with 0. operculata, strongly suggests a basal K2age for the microflora of this sample.

-3-

Tambo No. 6 cores 1 and 2 are tentatively attributed to the ToolebucLimestone, but certain characteristics of the microplankton succession, alsoobserved by Evans in the Julia Creek sheet area (Evans 1962) and later recognisedin other parts of the Eromanga Basin, might also point to the lowermost AllaruMudstone.

Adgathella No. 4 core 2 contains, besides Coptospora paradoxa,various types of angiospermous pollen grains in quantities unknown from lowerWinton and older formations (Burger, in prep.). Identical microfloras werealso recovered from the Winton Formation in W.O.L. Warbreccan Nos. 1 and 2 wellsand provisionally attributed, to the Upper Cretaceous (Cenomanian? See Evans 1966-c).

CONCLUSIONS.

Based on combined spore and microplankton criteria mentioned abovean upper and lower age limit can be given to the boundaries of the Hooray Sandstone,at least in the eastern part of the Eromanga Basin. Correlation with theUpper Jurassic to Lower Cretaceous formations in the Surat Basin appears to resultin the picture shown in Table 2. Palynological studies in the

LONGREACH - TAMBO- TAROOM sheet areas (Evans 1966-b) resulted in an almost

identical correlational scheme.

There are indications, based on vertical spore distribution, that thecontact between the lower and upper Hooray Sandstone should be correlated with somelevel in the upper part of the Blythesdale Formation.

At the present time palynological criteria for the identificationof the Upper Cretaceous in Australia are neither clearly defined, nor supportedby any other means of dating. Upper Cretaceous palynology is being studiedin detail at the University of Queensland by Drs. G. Playford and M.E. Dettmann.

Palynological reports of a great upsurge of Angiosperms in lowermostUpper Cretaceous microfloras throughout the world might prove to be valuablein subdividing the Cretaceous in Australia on the basis of the fraction ofAngiospermous pollen grains in the microfloras.

TABLE 2

SPORE UNITS TAMBO-AUGATHELLA AREA 'ROMA^AREA

K lb WALLUMBILLA FORMATION WALLUMBILLA FORMATION(Lower part) (Lower part)

8 Mimi MemberCI^H

K laM0

CO^rr..

J6HOORAY SANDSTONE ORALLO FORMATION

GUBBERAMUNDA SANDSTONE

J 5 WESTBOURNE^FORMATION

-4-

REFERENCES

BURGER, D. 1968 - Stratigraphy and. palynology of Upper Mesozoic sections in some deep

wells in the Surat Basin; Queensland., Buralin.Resour.Aust.Rec.1968/24

1967 - Palynology of some shallow holes drilled in 1966 in the Mitchell

area, Queensland. Appendix 3 to Exon,N.F.,Milligan E.N., Casey D.J.,and Galloway M.C., The Geology of the Roma and Mitchell 1:250,000 sheet

areas, Queensland. Bur.Min.Resour.Aust.Rec. 1967/63 (unpubl.).

DETTMANN, Mary E.9 1963 ■• Upper Mesozoic microfloras from South-Eastern Australia.

2S22.225a.21(2.22.112.2 77 (I), 1-148.

EVANS, P.R., 1962 - Notes on a palynological examination of St. Andrew's Bore,

Julia Creek, Queensland. Appendix A to Vine R.R., and Jauncey W.,

1962 Explanatory notes, Julia Creek Sheet, Queensland, Bur.Min.Resour.

Aust. Rec. 1962/81 (unpubl.).

1966 - a. Pai.Ynology of shallow drill holes in the Tambo 1:250,000

sheet area Queensland: Provisional Report. Appendix 2 to Exon,

Galloway M.O., Casey D.J., and Kirkegaard, A.G., 1966 - The geology

of the Tambo;'Augathella and Bladkall 1:2509000 Sheet areas, Queensland.

Bur.Min.Resour.Aust.Rec: 1966/89 (unpubl.).

1966 - b. Palynological studies in the Longreach, Jericho, Galilee,

Tambo, Eddystone & Taroom 1:250,000 sheet areas, Queensland. Bur,Min.

Resour.Aust. Rec. 1966/81 (unpubl.).

1966 - c. The palynology of Amerada Newlands No. 1 Well Queensland.

Bur.Min.Resour.Aust.Rec. 1966/186 (unpubl.).

1966 - d. Mesozoic .stratigraphic palynology in' Australia.

Austr.Oil & Gas Journ. 12 (6); 58-63.

1966 - e. Contribution to the palynology of Northern Queensland

and Papua. Bur.Min.Resour.Aust.Rec. 1966/198 (unpubl.)

1967 Palynology of shallow holes drilled in 1965 in the Mitchell

1:250,000 sheet area,Queensland. Provisional Report. Appendix 2 to

Exon N.F., Casey D.J., and Galloway M.C., 19670 The Geology of the

-5-EVANS, P.R., Cont.

northern half of the Mitchell 1:250,000 Sheet area, Queensland..


APPENDIX 4

PALYNOLOGY OF SOME SHALLOW DRILL CORE SAMPLES

FROM THE TAO AND JERICHO 1:250,000 SHEET AREAS

by

P.R. Evans

BMR TAMBO 7:-

Commenced in Precipice Sandstone and entered Moolayember Formation.Examined to test the suggestion that rocks associated with Jurassic palynologicalunit J1 developed the character of the Moolayember Formation in TAMBO (Evans,1966). Samples from the cores and depths given below failed to yield anypalynomorphs and the question remains unresolved.

Core No.^'Interval^M.F.P. No..1 921^0" -^92110" 4282

-.1 94110" -^95/^6" 42832 2421 0" - 2421^7" 42842 2431^6" 42982 244' 2" 42992 245110" - 2461^5" 4285

BL. TAMBO 8:-

Commenced in Triassic Dunda Beds and entered the Rewan Formation.Little of the two cores from the hole was suitable for examination. All samplesexamined were unfossiliferous.

BER TAO 9:-

Commenced in Permian Black Alley Shale and entered the PeawaddyFormation. Two samples were examined:

Core 1, 93 ft 6 in. - 94 ft Black Alley Shale.

An abundant yield of spores, pollen and occasional algae (see appendedlist). Spinose acritarchs were not observed. The variety of spores relative topollen is suggestive of a P3d rather than P4 age, in keeping with the regional ageof the Black Alley Shale. However, the lack of acritarchs precludes firmidentification of this zone. The lack of acritarchs contrasts strongly with theBlack Alley Shale intersected by the nearby B.M.R. Tambo No. 1 CH which in core3, at 161 ft 10 in. contained abundant Veryhachium sp. 3, the diagnosticcomponent of unit P3d.

Core 2, 163 ft 2 in. Peawaddy Formation.

Spores and pollen were relatively common but diluted with abundantmicrinitic material. No acritarchs could be seen. The spores (listed below)confirm a Stage 5 (P3b-4) age for the Peawaddy Formation on TAMBO.

BER JERICHO 4:-

Commenced in Colinlea and entered Joe Joe Formation. Samples weretaken from the Joe Joe Formation at:

MFP 4605^Core 1,^213 ft.NFP 4606 Core 2,^221 ft.

The microflora in both samples was relatively abundant andcharacteristic of stage 2 (see appendix).

-2-

BMR JERICHO 6:-

Passed from Quaternary into Joe Joe Formation. One sample wasexamined MFP 4613 Core 1 162 ft 0-6 in. Only a moderate yield of spores wasobtained which could fit into Stage 1. Further examination for more definitivespecies is warranted. The core was remarkable for its content of wellpreserved Rhacopterid pinnule fragments with cuticle intact which awaitfurther examination.

REFERENCES

EVANS, P.R., 1966 - Palynological studies in the Longreach, Jericho, Galilee,

Tambo, Eddystone and Taroom 1:250,000 Sheet area, Queensland.


EVANS, P.R., 1967 - Upper Carboniferous and Permian palynological stages and

their distribution in eastern Australia. Ibid., 1967/99 (unpubl.).

31st December 1967.^ P.R. EVANS.

Geologist.

B.M.R. TAMBO No. 9

-3-

MICROFLORAL LISTS

MFP 4274core 1,93'6"-94'

MI? 4275core 2,163'2"

Phyllothecotriletes nigritellus

Deltoidospora directa

Conbaculatisporites sp.

Baculatisporites sp.

Granulatisporites micronodosus

Lacinitriletes trisinus

Lophotriletes tereteangulatus

Didecitriletes ericianus

D. uncinatua

D. aff. dentatus

Microreticulatisporites bitriangularis

Indospora sp.

Lycopodiumsporites sp.

Kraueselisporites spp.

Dulhuntyispora parvithola

Striatopodocarpidites cancellatus

Protohaploxypinus amplus/sewardi

Vesicaspora ovata

Striatoabietites multistriatus

Alisporites sp.

Gnetaceaepollenites sinuosus

Peltacyrtia sp.

Circulisporites sp.

Schizosporis calculus

Welwitschiapites?

Marsupipollenites triradiatus

Barakarites rotatus

Parasaccites spp.

Bascanisporites undosus

B.M.R. JERICHO No. 4 & 6.

-4-

Jericho 4^Jericho 6 MFP 4605 1/IFP 4606^MFP 4613core 1^core 2^core 1213'^221'^162'

Punctatisporites

Punctatisporites gretensis

Phyllothecotriletes nigritellus

Punctatisporites sp. 7

Anaplanisporites sp. 8

Kraeuselisporites sp. 35

Erdtmania elongatus

Parasaccites korbaensis

Punctatisporites sp. 58

Cycadopites cymbatus

Protohaploxypinus goraiensis

Potonieisporites neglectus

Anapiculatisporites sp. 17

Parasaccites triangularis

APPENDIX 5

CORE ANALYSIS RESULTS - B.M.R.

DRILLING, 1966, EROMANGA BASMISEEENSLAND

by

P. G. Duff'

Cores from nine wells drilled in the Eromanga Basin during 1966

were submitted for petrophysical testing in the Petroleum Technology laboratory.

The results of testing are incorporated in the accompanying tableS.

Fluid saturation determinations were made only if the freshly broken

core segments exhibited fluorescence or if a positive acetone test was obtained

from the finely divided material.

All samples were subjected to a simple phosphate test using an

acid ammonium molybdate solution. Only one sample gave a positive reaction

viz. Adavale Scout No. 1, core 4, 113'6" - 11411".In some cases the core segments were found to consist of small

fragments from which regular shapes for permeability determinations could not

be cut; these are recorded in the table as "N.D." (not determined).

Petroleum Technology Laboratory, Bureau of Mineral Resources, Geology and Geophysics, Canberra

CORE ANALYSIS RESULTS

NOTE:- (i) Unless operwise stated, the porosities and permeabilities were determined on two ., small plugs (V&H) cut at right angles from the core.

Ruska porosimeter and permeameter were used with, air at 30 p.s.i.g. and dry nitrogen • respectively, as the saturating and flowing media.(11) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,

strong or very strong.

0.■••••••

WELL NAME AND NO.

JERICHO B.M.R. SCOUT NO. 9

DATE OF TEST. ---5TH JANUARY 1968-__--__

^---- • ----.^----- --^

.:

Core Depth •Average Absolute Average Fluid Saturation Core Solubility

15% HC1

Fluorescence

freshlyofNo. From:- Lithology Effective Permeability Density (% of pore space) Acetone Water in

To:- Porosity from

two 'plugs

(Millidarcy) (gm,;/cc.) Teat Salinity

(P.P.M.(% Bulk vol.

broken core.

•(% Bulk Vol.) V H

Dry-

Bilik

Apparent

GrainWater Oil RaC1)

'-

--.1

-1

6510"

65'6"Sandstone,

argillaceous46*

--

N.D.

.713

,1.52 2.82 N.D. N.D. Neg. N.D. N.D. Nil

68'0" As above 41* 323 561 l64I 2.78 H II II II ft.^' II

. --6815" - - -.--

,^.

•• ----------

r- 1 6910"

69'8"

-

As above 45 N.D. •501 1.53 2.7.7 ” u_^. 11-.

u .û u

u .û13410"13418"

Siltstone&sandstone

43! H 1257 1.66 2.91 H u u.^_

2 13714". .Asiabove • 43*. ." 657. 1.70 3.07 if it .û. u

.

ft^.

--^"

137110 _—...----

19414" Sandstone 31 45 47 1.94 2.78 • n u 11 u^- .11 il

19419" &siltstone --_-_ •______-___-

197'1" As above 31 21^• N.D. 1.99 2.88 • “ H 111 .ôf if u

197'5"----

. — —1

Remarks:- ing cracks occurred; results unreliable. General File No. 62/390.

Well File No.



ROTE:- (1) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (V&H) cut at right angles from the core.

Rbska porosimeter and permeameter were used with, air at 30 p.s.i.g. and dry nitrogen^respectively, as the saturating and flowing media.

(11) Residual oil and water saturations were determined using soxhlet type apparatus. (l11) Acetone test precipitates are recorded as nil, trace, fair,


ELL NAME AND NO.^JERICHO B.M.R. SCOUT NO. 9 DATE OF TEST.^5TH JANUARY 1968

Core

No.

Depth

From:-

To:-

Lithology

-

Average

Effective^.

Porosity from

two 'plugs

Absolute

Permeability

(Millidarcy)_

(g

Average

Density "

fu/CC. )

Fluid Saturation

(% of pore space) 'Âcetone

Test

Core

Water

Salinit3

(P.P.M.

Solubility

in 15% HC1

(% Bulk vol.

Fluorescence

of freshly

broken core.

Dry::

Bulk•

(% Bulk Vol.) V^. HApparent

GrainWaterÔil NaC1)

-r -

16510"65'6"

SandstoneargillaceoLs

46* N.D. 713 1.52 2.82 N.D.^N.D. Neg. N.D. N.D. Nil

68'0" 'As above 41* 323' 561 1.64 2.78 n^n n n n -I1

1 WO" As above 45 N.D. -501. 1.53 2.77 aâ a.

a a a^-

69'8" .-,

134'0" Siltstone 43'.'' 99 1257 .^1.66 2.91 91Î^

n 11

_11 , n

• 134'8" &sandstone I.137314"..1 2r7 , lo ”

As 'above •--43* ,n .657. 1.70 ,^3.07 it^n n^.^• .û^• 1^HU II^_

3 194'4" Sandstone 31 45 • 47 .^1.94 2.78 n^11^- n n.. n n

194'9" &siltstone ^..--^-^. _-

3 197'1"197'5"

As above 31 21 N.D.. r^

1.99•

2.88-..--^•

n^n -:.,--.^n -n 11 it

Reaarks:-îng cracks occurred; results unreliable.^ General File NiG 62/399.

Well File No.


. CORE ANALYSIS RESULTS

NOTE:- (i) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (V&H) cut at right angles from the core.

Ruska porosimeter,antl permeameter were used with, air at 30 p.s.i.g. and dry nitrogen', respectively, as the saturating and flowing media.

(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,strong or very strong.

WELL NAME AND NO, JERICHO B.M.R. SCOUT NO. 9 DATE OF TEST.^5TH JANUARY 1968

Core

No.

Depth

From:-

To:-

,

Lithology

Average

Effective

Porosity from,

two plugs

(% Bulk Vol.)

Absolute^.

Permeability

(Millidarcy)

Average

Density

(g IL/CC. )

-.

Fluid Saturation

(X of pore space) Acetone

Test

•

Core

Water

Salinity

(P.P.M.

NaC1)

Solubility

In 15% HC1

(% Bulk vol.

Fluorescence

of freshly

broken core. \-

V Hk

Dry.:.

Bel

Apparent

GrainWater^Oil

4 256'0" Sandstone 31 36 48 1.88 2.69 N. I).^N. I). Neg. N.D. N.D. Nil256'7" ,--25815" t, \^32 75 109 1.E36 2.72 u^it u 11 11 11

.25911" •

317'4"11

32 265 N.D. 1.E32 2.67 11 II II II 11 11

318'O"

321'8" n 32 529 658 1.79 2.64 11 n n II,

•-,.._11

32213n

6 392"0" , " 33 2,50,0 3,100 1.E31 2.70 11.^

1/ 11 If II 11

392' 8" 6 395'11" u 33 N. D. 5.500 1.79 2.67 ” H^- u u^. ft It

_ ^39615"

'

General Fite No. 52/399.

Well File

••

II

Remarks:-

P



NOTE:- (i) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (IAN) cut at right angles from the core.Ruska porosimeter.aal permeameter were used with, air at 30 p.s.i.g. and dry nitrogen'., respectively, as the saturating and flowing media.(1) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,strong or very, strong.

WELL NAME AND NO. JERICHO B.M.R. SCOUT NO. 9 DATE OF TEST.^5TH JANUARY 1968

CoreNo.

DepthFrom:-To:-

LithologyAverageEffectivePorosity fromtwo 'plugs(X Bulk Vol.)

AbsolutePermeability(Millidarcy)

AverageDensity(gm.../cc.)

Fluid Saturation(X of pore space) Acetone

Test

CoreWaterSalinity(P.P.M.

NaC1)

Solubilityin 15X HC1

(X Bulk vol.

fluorescenceof freshly .broken core.

V HDry.:Bulk

ApparentGrain

Water 011

4 256'0" Sandstone 31 36 48 1.88 2.02 N.D. N .D. Neg. N.D. /T . I) . Nil256 ' 7"

258 ' 5".-259,111

n 32 75 109 1.86 2.72" I n „ „

„:it it

31714" n 32 265 N.D. .^1.82 2.67

it

^L „31E3'CP' ________

5 321 ' EP' 11 32 529 658 1.79 2.64 11 It n I, II .^n

322'3"

6 392" O"0" I, 33 2, 59D 3,100 1.81 2.7() n 11 n n n It

-122'8" ^ -,n 33 N.D. 5.500 1. 79 2.67 n n u n^- .fl n

6 39511"39615t1

i ...--^'

Remarks:- General File No. 62/399.Well File No.



- NOTE:- (I) Unless otherwise stated, the porosities and permeabilities were determined on two., small plugs (VIH) cut at right angles from the core.Ruska porosimeter'antI permeameter were used with, air at 30 p.s.i.g. and dry nitrogen'., respectively, as the saturating and flowing media.(ii) Residual oil and water saturations were determined using so:diet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,strong or very strong.

WELL NAME AND NO. TAMBO B.M.R. SCOUT NO. 5 DATE OF TEST. 28TH DECEMBER 1967:

Core'^No.

'Depth_From:-T6: -

,^..

Lithelogy

--___

AverageEffectivePorosity fromtwo plugs(% Bulk Vol.)-------------_—

Absolute^.Permeability(Billidarcy)

AverageDensity(9 c/cc. )

Fluid Saturation(% of pore space)

•.AcetoneTest

CoreWaterSalinity(P.P.M.NaC1)

Solubilityin 15% HC1

(% Bulk vol.

.Fluorescence •of freshlybroken core.

V HDry-:.BUik

ApparentGrain

Water Oil-

1121011 Sandstone 35 2,110 2,590 1.73 2.65 N.D. N.D. Neg. N.D. N.D. Nil^.

11218" ---.......- .

123'3" H. 32 54- 508 1.81 2\.66• ,., n -^H 11

•

H u

12318"

124110"12516"

u -32 50 _386 1.82 2.67 u .û^. u^-^• _ u u.

.û

.

16512" ft 32 45 184 1.85 2.72 11 “ u ” 11V 11

16518" •,^. ft .11 11

:______

170,3"17019" -^

:.. 11 ____30^-, N.D.))^•^-

N.D.)^.

188.°) 2.6T • 11 " -^11V

.^) 7. •••:^,.

207u2" Siltstone 33 N.D. 1.87 2.79^- " It It It^- -û .

gutionV

---

8 216'6" u 29. Nil N.D. , , 2.01 2.83^-- " 1, • u 11. ft^.. 11

217'1" .

01

Remarks:- Cores Nos. 1, 3; no samples available. General File No. 62/399.Well File No.

7



NOTE:- (i) Unless otherwise stated, the porosities and permeabilities were determined on two, small plugs (VW) cut at right angles from the core.Ruska porosimeter-anti permeameter were used with, air at 30 p.s.i.g. and dry nitrogen, respectively, as the saturating and flowing media.(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (ill) Acetone test precipitates are recorded as nil, trace, fair,strong or very strong.

WELL NAME AND NO. TAMBO B.M.R. SCOUT NO. 5 DATE OF TEST. 28TH MECELMER 1967

CoreNo.

_Depth_From:-T6:-

.^.^.

LithologY

—_-_.^•^_

AverageEffectivePorosity from.two "plugs(X Bulk Vol.)

^

-------^

^

Absolute^_Permeability(Millidarcy)

_

AverageDensity(gm.;/cc.)

Fluid 'Saturation(X of pore space) Acetone

Test

CoreWaterSalinit)

NaC1)


(% Bulk vol.

Fluorescenceof freshly^

. --..broken core.

V HDry.:BA

ApparentGrain

Water— 0 Oil

112'0." Sandstone 35 '2,110 2,590 1.73 2,65 N.D. N.D. Neg. N.D. N.D. Nil

11218" ... .

•5^

.

123'3"

'123'8"

\^". 32.

54 508 1.81 2.66 II II

.

II II.

,i.

It

,

II

1.24410. ,. .^32 50 386,

1.82 2.67 u if 11^- u .fl u

12 16" , — -•-,

165'2" u 32 45 • 184 1.85 2.72 11 u H^.

111 .11 11

165'8'1 .

.-,^-1703" .^::.,._11 _ _ 30

.^-,N.D.) N.D. itss_ .^_2.67, u u 11 u__. 11^.

J^-.

11

• -1/019"^- _-_ -.

20712" Siltstone 33 •N.D. 1.87 2.79 11 H H H^' II H•

20^110"

8 216'6" II-^• 29 Nil^. N.D. ..--^2.01 2 .83_.—

le H u.

H.^-- H^. H^.•

, 21711" . .

Remarks:- Cores Nos. 1, • no samples available. General File No. 62/399.Well File No.



NOTE:- (i) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (VU) cut at right angles from the core.

Ruska porosimeter an permeameter were used with, air at 30 p.s.i.g. and dry nitrogen:, respectively, as the saturating and flowing media.-

(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,

strong or very strong:-

—WELL=NMAE: AND- NO.: TAMBO -B .M. R. SCOUT NO. r-7

DATE OF TEST.^26TH JANUARY 1968

• COre

No.

-Depth

From:-

To:-

Lithology

.

.Average

Effective

.Porosity from

two plugs

(% Bulk Vol.)

Absolute^.

Permeability

(Millidarcy)

.Average

Density

(gm;/cc.)_.

.Fluid Saturation.

(% of pore space) Acetone

Test

,• ^

Core

Water

Salinity

(P.P.M.

NaC1)

Solubility

in 15Z HC1

-(Z .Bulk vol.

.--

.Fluorescence

of freshly

broken core.

V HDry -:.

BUlk

Apparent

GrainWater Oil

-1 93'9" Silt s tone 26^. Nil N.D. 2.17 2.$14. N.D. N . D . Neg. N.D. N.D. .^Nil.

94' 3"Yr! 2” Silts torte& . 4. N.D. .^n 2.16 2.84 ._ " u II t,

.-II .^u^. •

971911_ - Seaastme_______ - ____ -- -- __ __

10018" Seavlsthrie, 25 .

It Is 2.19 2.92 -^" •11 11 .^Is u Is

1011:2" ferruginous - ._

' 2 243113" sii. ts tone 19 Nil Nil 2. 20^- 2.74 Is is^- “ u is 9

244,2". .

2 240 i 1" saull(i^•• .29% N.D.) NA): - 2.28 - 2.85 u II • - II It II It i

24715" ferruginous .^:.^-

24[819" Stale, u It 2. 15 2. 69 u u •.

u. 11, sr-. u

2014" - calcareous . • : ---7^.

'

,

CO

Remarks:-^ General File Mo. 62/309.

Well File No.

_

Petroleum Technology Laboratory, Bureau of Mineral Resources, Geology and Geophysics, Canberra -


NOTE:- (1) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (VIII) cut at right angles from the core.Ruska porosimeter aift1 permeameter were used with, air at 30 p.s.i.g. and dry nitrogen:, respectively, as the saturating and flowing media.(11) Residual oil and water saturations were determined using soxhlet type apparatus. (iii)) Acetone test precipitates are recorded as nil, trace, fair,-strong or very strong. --^ •_

WELL- NABE-AND110;- TA1.130-B.M.R. SCOUT NO. c.7^" " "^ 77- --DATIOF TEST. -^26TR JANUARY 1968

Core

No.

Depth

From:-

. To:-.

•

Li t ho 1 ogy

•

Average

Effective

orosPity from

two -plugs

(^Bulk Vol.)%

Absolute^.

Permeability

(Nilli darcy )

Average

Density(9.i/cc.)

Fluid Saturation

(X of pore space).,- ,_^/.

Acetone

Test

Core

Water

Salinit

(P.P.N.NaC1)

Solubility

in 15% HC1.

(%. Bulk vol . )

•

.

FlUorescence

of freshlybroken core.^--.

V^. H Dry^:.

BulkApparent

GrainWater

..---011 .

1 513 ' 9 " Silts tone 26 al N.D. 2.17 2.94 N.D. N.D. Neg. N.D. N.D. Ni].

94'3"1 97'2"

571 9"Siltstone&

' Sandstone-^24.__,_^-^_

N.D.______

U

; -2.16 2.84 .

___" U U

'- - -U

-, - -

U^, it

1 10018" Sandstone, 25 11. 11 2: 19 2.92 -^" -.ft u^. it If^. it

1011:2" ferruginous .

-^2 24313" Sill:Stone 19^• Nil Nil 2.20,. 2.74 " Al^- 11 H .11^• u

244'2" ..^.2 24.6) 11" Shale, 20% N.D.) - N.M.- ---2.28 2.85 u -^u^. if If .11 U

247' 5" ferruginous.

2 20 1 9 n Shale, 20 “ II 2.15 2.09 o u u U SE"- U_

240 ' 4" calcareous ..•

- _

.

Remarks:- General File No. 62/399.

Nell File No.

Remarks:-* Small .ferruginoUs. bands present.

•

General File No. 62/399.Well.File No.



•NOTE:- (i) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (V&H) cut at right angles from the core.Ruska porosimeter,and permeameter were used with, air at 30 p.s.i.g. and dry nitrogen ^respectively, as the saturating and flowing media.(ii) Residual oil and water saturations were determined using somblet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO. TAMBO, B.M.R. SCOUT NO. 8 DATE OF TEST. 26TH JANUARY 1968

------

Core-No.

-DepthFrom:-To:-

--^.^,.

..^Lithology

AverageEffectivePorosity fromtwo plugs(% Bulk Vol.)-

.....___^.

• Absolute^.Permeability(Millidarcy)

Average^'Density(gm;/cc.)

.-- -

-_-___-

Fluid Saturation(% of pore space) Acetone

Test



(% Bulk vol.

Fluorescenceof freshlybroken core.

V HDry-:.Bulk

ApparetGi.ain

Water 011

1

•

----

73'T'14 1 3 , ,

SlitstpneSandstone

27'

Ni. 2,

2..10 ' 2.89* N.D. N.1). Neg. N. D{. N.D. Nil

74 ' 11" ^'1(516"

As above 26^'• Nil 1—

2.12•2.81 11 et H if ”

-^• ^H

25)71 ()"20118"

_^.^.209! lift

^ 210'6" . ^

Silts-bone

Sandstone

.30

26

N.D. N.D. 1.96 2.81 u h II' u

•

it^• u-

-,

N. b. 15 1.99 2. 70 ' -^" it ” .^it^.

.

.fl n

...-...-..-

:,^•i

•

.

. .....

.-

....-...-.... .^.. ...--...

.

-....-..---■......-

.-. ••

..."..............-•:■".

.



NOTE:- (1) Unless otherwise stated, the porosities and -permeabilities were determined on two small plugs (VW cut at right angles from the core.

Ruska porosimeter,aitd permeameter were used with, air at 30 p.s.i.g. and dry nitrogen , respectively, as the saturating and flowing media.

(11) Residual oil and water saturations were determined using soxhlet type apparatus. (11i) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO. TANBO, B.M.R. SCOUT NO. 8^

DATE OF TEST.^26TH JANUARY 1968

• Core

No.

-Depth

From:-

To:-

.

Lithology

Average

Effective

Porosity from

two plugs^:(X Bulk Vol.)

Absolute

Permeability

(Millidarcy)

Average

Density

(ge;/cc.)

-----

Fluid Saturation


Test

Core

Water

Salinity

(P.P.N.

NaC1)___..

Solubility

in 15X HC1

•(X Bulk vol.)

Fluorescence

of freshly

broken core.

HDry

Bulk

Apparent

GrainWater 011

7317“7413"

SiltstoneSandstone

27 Nil 2.10 2.89* N.D. N.D. Neg. N.D. N.D. Nil

1 74111"75'6"

As above 26 Nil 1 2.12 2.81 n n H H II H

2 20710"20718"

Siltstone 30 N.D. N.D. 1.96 2.81 H CI H II H H

-.

•

209'11"21016"

Sandstone 26 N.D. 15 1:99 2.76 - " H It If • If It

'

,

•

'

i•

+.

.....--.

Remarks:-* Small ferruginous bands present.

General File No. 62/399.Well File No.



NOTE:- (1) Unless otherwise stated, the porosities 'and permeabilities were determined on two small plugs (V&H) cut at right angles from the core.

Ruska porosimeter and permeameter were used with, air at 30 p.s.i.g. and dry nitrogerl, respectively, as the saturating and flowing media.

(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (iii)) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO. TAMBO B .M. R. SCOUT NO. 9 .DATE OF TEST:^26TH JANUARY 1968

,

Core

No.

Depth

From:-

To:-.

Li thology

Average

Effective

Porosity from

two 'plugs

(% Bulk Vol.)

Absolute^.

Permeability

(Millidarcy)^.

Average

Density

(gm.;/cc.)

Fluid Saturation

(% of pore space)

•.^•

Acetone

Test

.^Core

Water

Salinity

P.P.M.

NaC1)

^•

Solubility

in 15% HC1

,.Bulk^vol.)

Fluorescence

^

of freshly^.

^

-^....broken co re.

'^.^V HDry -:

BU1k

Apparent

GrainWater

------

011

93'0"

9316"Shale ^.

'29 N.D. N . I).,

2.15 3.03 N.D. N.D. Neg.^- N. l). N . I). bill

.' 9511"951711

__-___-

Shale &Silt torue

26

--^--

N. D.

-Nil

N . I).

8

2.21

2.16

2.98 11 11 “,

u

”

--u

H

- ----.^II

------

H

--------2.72 11 11 et

-..,.1621 'T".163 ' 2"

Seuads tone^. ^

21

^—^_____..

. _^.

. - .' •-

,

,^\ •

Remarks:-

General File No. 62/399.

.. Well File No..

Petroleum Technology Lahore:,^8Jreau of Mineral Resw---As, Geology and Geophysics, Canberra

CORE PIALYSIS RESULTS

NOTE:- (i) Unless oihervise stated, the porosities and permeabilities were determined on two small plugs (VII) cut at right angles from the core.Ruska porosimeter anJ permeameter were used with, air at 30 p.s.i.g. and dry nitroger , respectively, as the saturating and flowing media.(11) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,strong or very strong.

WELL NAME AND NO. TAKE30 B.M.R. SCOUT NO. 9 DATE OF TEST. 26TH JANUARY 1968

CoreNo.

Depth_From:-

.To:-Lithology

AverageEffectivePorosity fromtwo plugs(% Bulk Vol.)

Absolute^.Permeability(Millidarcy)

AverageDensity(gm;/cc.)

Fluid Saturation(t of pore space) Acetone

Test



(% Bulk vol.)

.-

Fluorescenceof freshly^...broken core.

V HryD^-

BitlkApparent6rain

WaterÔil

1 93'0"93 1 6 "

Shale 29 N.D. N.D.,

2.15 S N.D.^N.D. Neg. N.D. N.D. Nil

1 9511"95•7"

Shale &Sdltstone

26 N.D. N.D. 2.21 IIît II II II1

/I

2 16217.163'2"

Sandstone 21 Nil 8 2.16 tiÎt tt II tt It

-.

. -

_

-

-,

Remarks:- General File No. 61/3119.Well File No.

General File No. 62/399.Well File No.Remarks:-

Patroleum Technology Laboratory, Bureau of Mineral Resources, Geology and Geophysics, Canberra


NOTE:- (i) Unless oiherwise stated, the porosities and permeabillties were determined on two, small plugs (V&H) cut at right angles from the core.Ruska porosimeter an permeameter were used with, air at 30 p.s.i.g. and dry nitrogen-i respectively, as the saturating and flowing media.(11) Residual oil and water saturations were determined using soxblet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO.^AUGATHELLA B.M.R. SCOUT NO. 1

DATE OF TEST.

^-----_-------_

CoreMo.

,DepthFrom:-To:-

_____^--_—___--___-^

S

LithologyAverageEffectivePorosity fromtwo'plugs(% Bulk Vol.)

•AbsolutePermeability(Millidarcy)

-Bulk

--------Dry

AverageDensity(gm,/cc.)

Apparent

Grain

(Z of pore

.water

_---

Fluid Saturationspace)

Oil

'AcetoneTest


NaC1)


(% Bulk vol.


H

1 8016"80111"

Sandstone,friable

— ^' 40 680 N.D.

,1.64 2.73 Na. N.D. Neg. N.D. N.D. Nil

8713'i II 45 970 ^87111"

u 1.53 2.79 u u u H 11 H

____

9019"91'5"

u 43 N.D. u 1.64 2.87 If H ft H ft

--..-.~.

If

_____---...-..- S

,

-

----

----^--- , .

_^ ,

0


. CORE ANALYSIS RESULTS

. NOTE:- (i) Unless otherwise stated, the porosities and-permeabilities were determined on two small plugs (VU) cd at right angles from the core.

Ruska porosimeter anI permeameter were used with, air at 30 p.s.i.g. and dry nitrogen respectively, as the saturating and flowing media.

' (10 Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,

strong or very strong. --

VEIL NAME AND NO.^AUGATHELLA B.M.R. SCOUT NO. 1 DATE OF TEST.

CoreNo.

Depth

From:-

To:-

Lithology

Average

EffectivePorosity from

two plugs

_ (Z Bulk Vol.)

Absolute

Permeability

(Millidarcy)

Average

Density

(gm/cc.)

Fluid Saturation

CZ of pore space) Acetone

Test

Core

Water

Salinit)

(P.P.M.

NaC1)

Solubility

in 15Z HC1

(Z Bulk vol.)

Fluorescence

of freshly

broken core.

HDry^-

BUik

Apparent

GrainMater Oil

1 8O'6"80 1 11 "

Sarmisix)rm,friable

40 680 N. D. 1.64 2.73 N.D. N.D. Neg. N.D. N.D. Nil

87' 34Eql 1 1"

“ 45 919 lit.

1.53 2.79 u u 11 It

-

11 It

2 901 9"91 ' 5t!

II 43 N.D. . " 1.64 2 .87 11 .^u II It 11 II

-^'

-----

-

----- -

\

Remarks:-^ General File No. 62/309.

Veil File No.

General File No. 62/399.

Well File No.



NOTE:- (i) Unless,utherwise stated, the porosities and permeabilities were determined on two small plugs (V&H) cut at right angles from the core.

Ruska porosimeter anti permeameter were used with, air at 30 p.s.i.g. and dry nitrogen:, respectively, as the saturating and flowing media.

(it) Residual oil and water saturations were determined using soxhlet type apparatus. (iii)) Acetone test precipitates are recorded as nil, trace, fair,

strong or very. strong.

WELL NAME AND NO.^AUGATHELLA B.M.R. SCOUT NO. 2

DATE OF TEST.

—____

Core

No.

,

Depth

From:-

To:-

Li tho 1 ogy

Average

Effective

Porosity from

two 'plugs

(% Bulk Vol.)

Absolute

Permeability

(Millidarcy)

Average

Density(gm:/cc.)

---

Fluid Saturation

CAE of pore space)

,

-

Acetone

Test

Core

Water

Salinit

(P.P.ti.

NaC1)

Solubility

in 15^NCI

(%Bulk vol.

Fluorescence

of freshly

broken core.

V HDry^:

Bulk

Apparent

GrainWater Oil

2 5912" Claystone CRACKS 03CURRED ON IWIEL UNSUITABLE FOR ANALYSIS59'7"

3 83'3"83t9"

Salmis-tunesiltstone,

&41 70 N.D. 1.73 2.93 N.D. N.D. Neg. N.D. N.D. Nil

fan6a1-1e--8511C)" Siltstone CRACKS OCCURREI ON DRYING. UNEUIT/OLE 7OR ANALYSIS •

86'6"^- — ----- — ...

9110" Sandstone 39 N.D. N. I). 1.81 2.97 N.D. N.D. Neg. N.D. N.D. Nil

91'9" friable

4 964"^• ), 4 ”) .^u 1,61 2.73 u H le u u^. u

97'()" — —

97'5" ^97/11"

u 41________ u u 1.60 2.72 u u it H It u

5 133,0" •Clays-1;02.1e 40 H II 1. 78 2.97...^. • " H .^H if to u^-

133'7" , ^ ---.

Remarks:-Core No. 1; no sample available.

a

Petroleum Technology Labrw?tory, Buru.,.; of Mineral Resources, Geology and Geophysics, Canberra


NOTE:- (1) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (YU) cut at right angles from the core.Zuska porosimeternJ permeameter were used with, air at 30 p.s.i.g. and dry nitrogen', respectively, as the saturating and flowing media.(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (iii)) Acetone test precipitates are recorded as n11, trace, fair,


WELL NAME AND NO. ^ATJGATHELLA B.M.R. SCOUT NO. 2 DATE OF TEST.

CoreNo.

Depth .

From:-To:-

Li tho 1 ogyAverageEffectivePorosity fromtwo 'plugs(% Bulk Vol.)

AbsolutePermeability(Igi 11 1 darcy )

AverageDensity(gm ./cc. )

.


Test

CoreWaterSalinit)(P.P.M.NaC1)


(% Bulk vol.


.H

Dry^-Bulk

ApparentGra 1 n

Water^011

2 5912" Clays tone CRACKS OJCIDIRED ON DRYING. UNSUITABLE FOR ANAL SIS

5917"

8313u

8319"

SandstoneSil ts tone ,frialae--

& 41 II) N. 1) . 1.73 2.93 N.D. fN.D. Neg. N.D. N.D. Nil

3 85110" Siltstone CRACKS OCCUR= ON DUDE. IINEIIITABLE -kg/ ANA_XSIS86'6"

4 91,o"9119"

Sandstonefriable

39 N. D. N.D. 1.81 2.97 N.D. N.D. Neg. N.D. ,.^-

4 9041-1 H 41 n n 1161 2.73 H H 11 H 11 H

97 ' 0" .

4 9715"97'11"

'1 41 I, ” 1.60 2.72 u H u

-------

u u u..

5 113'0" Claystone 40 ul n ,^1.713 2.97 -^"

11 .^.^11 11 11 11

133'7" __^

Reaarks:-^ General File %AVM.Core No. 1; no sample available.^ Well File No.^-

* Hydrocarbon indications derived from coaly material in shale. General File No. 62/390.Well File No.Remarks:-

•

• Petroleum Technology Laboratory, Bureau of Mineral Resources, Geology and Geophysics, Canberra

ORE ANALYSIS RESULTS

NOTE:- (I) . Unless otherwise stated, the porosities and -permeabilitieS were determined on two small plugs (VW) cut at right angles from the core.Ruska porosimeter-aied permeameter were used with, air at 30 p.s.i.g. and dry nitrogen., respectively, as the saturating and flowing media.(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO. AUGATHELLA B.M.R. SCOUT NO. 3 DATE OF TEST. 22ND JANUARY 1968

----- — ...----..----___

COreNo.-

____-

'Depth.From:-To:-

---,-----

..

•Lithology

-----

AverageEffectivePorosity fromtwo 'plugs(^Bulk VolX Vol.)

-^-

AbsolutePermeability(Mi 1 li darcy )

AverageDensity(gm,Inn".).

.Fluid Saturation(X of pore space) Acetone

Test

Core-.WaterSalinit(p.p.m.

NaC1)- ---t----e- -

Solubility.^FluorescenceIn 15X HC1^of freshly

broken core.MEhilk vol.

-....4,:' -.=.:- H ''""-

Dry^--;:jEliiii14.

-----7.-7:-.....z.m!1.69 '

ApparentGrain

Water Oil

__—___''.-?.2s.-44.:.•.„,44..... .

-^-^--:""'-.:'.7..,,-6„..#1,4r.:;.

Nil^Six° '-':if ;D:::"...:17.-.... 77--F.11.1.•.5a;,.. _-i

Mil67/9116813"

SiltstOne& caaAp.shale

37_____N.D.

-------,-N.D.

1510"7317"

Sandstone 28.

64 122 1.93 2.68 4 Mil Trace

_.-^..2^' 76'0"

76'.6"_It^. 29-^_ N.D.

_ _^_363 1.89 2.68 N.D.

-----

N.D.

,---

Nil

—

n n

_ _-_---

n^.

------144 1.849

.

2.68

--.......,

N.D. N.D. Nil It

•

.^11 II

8()16"81"2"

to - 30 96

--_—____--4

4

86110" -

89'4"89'11" ill

1,

28

• 31^_^-

32.^.

.. 62.^)

2967

527

283.

.^607^..

8()5

1.90 2.66

2.66

2.67

N.D.

N.D.

i Mil. Trace 11

_____

.11 It^.-

1.85

,,^1.f31

N.D. Nil ..

----

11^• .^:„

Ii..D. :Nil

--

I L 111..

...-94'0"9819" -----------

•

Petroleum Technology Laboratory, Bureau of.Mineral Resources, Geology and Geophysics, Canberra

CORE ANALYSIS RESULTS-

NOTE:- (i) Unless olherwise-stated, the porosities and permeabilities were determined on two small plugs (VW) cut at right angles from the core.

Ruska porosimeter and permeameter were used with, air at 30 p.s.i.g. and dry nitrogen , respectively, as the saturating and flowing media.

(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (ill) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO. AUGATHELLA B.M.R. SCOUT NO. 3 DATE OF TEST. 22ND JANUARY 1968

Core

No.

Depth

From:-

To:-

Litholog)

Average

Effective

Porosity from

two "plugs

(X Bulk Vol.)

Absolute

Permeability

(Millidarcy)

Average

Density

(gm.-./cc..)

Fluid Saturation


Test

Core

Water

Salinit)

(P.P.M.

NaC1)

Solubility

in 15% HC1

(X Bulk vol.

/

Fluorescence

of freshly

broken core.'^-

V HDry

Bulk

Apparent

GrainWater Oil

67'9" Siltstone 37 N.D. N.D. 1.69 2.69 14 Nil I^Strong* N.D. N.D. Nil68'3" & carb.shLle ,

2^' 730" Sandstone 28 64 122 1.93 2.68 4 Nil Trace m m m

'13'7" ,2 76'0" . '' 29 N.D. 363 1.89 2.68 N.D. N.D. Nil m m m^.

'76'6" ,3 806" m 30 96 144 , 1.89 2.68 N.D. N.D. Nil - m

81'2"

3 86°3" 11. 28 62^) 283- 1.90 2.66 2 Nil Trace m m -^m86'10" —

4 89'4" 2967 697 1.85 2.66 N.D. N.D. Nil m^- It U

89t11" U 31..............--...-----

9410" U 32 527 805 1.81 2.67....-- .^N.D. N.D. -'.Nil._.m m . It

9819"

Remarks:-* Hydocarbon indications derived from coaly material in shale.

-

General File lo. Inns.Well File No.

■13



NOTE:- (I) Unless,otherwise stated, the porosities and permeabilities were determined on two small plugs (VU) cut at right angles from the core.Ruska porosimeter-aied permeameter were used with, air at 30 p.s.i.g. and dry nitrogen ^respectively, as the saturating and flowing media.(II) Residual oil and water saturations were determined using soxhlet type apparatus'. (iii) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO.AUGATIELLA B.M.R. SCOUT No. 3

DATE OF TEST.^22ND JANUARY 1568

,____-

CoreNo.

.

Depth-From:-To:-

--^•

LithologyAverageEffectivePorosity fromtwo plugs(X Bulk Vol.)

.

Absolute^.Permeability(Millidarcy)

.

AverageDensity(g to. ICC. )

Fluid Saturation(X of pore space)

.^.

AcetoneTest

----


NaC1)


(% Bulk vol.


V^. HDry-:.BUlk

ApparentWater 011

'^Grain

5 97'6"10610"

Sandstone 32 N.D. 1244,

1.83 2.69 N.D. N.D. Neg. .. N.D.- N.D. Nil

,

10616"106111"

.11 31•

1960 N.D. 1.84 2.65 1, 11 fl

• -

u . u -û

10918". 11012" •

11.

28 109 559 1.92 2.66 H H - H^• ft

.

11 11

.11614"116111"

11 27 242 406 :1.94 2.66 n n n^. n •”^,,,--,..-n

7 12P 11"123'5"

11 . 32 1388) 1253 - 1.83 2.66 n . n n n n 11

-.

8" 126110"127'8"

11 21 1 3 2.12 2,68 n II 11.-

n

...

,ît n

8 133'3"134'0"

n 22 N.D. 35 ,„^2.09 2.67, ^

11 II .^• II • .ÎI It ii

Remarks:- General File Noi460

-

99. -

. Well File No.

IN)

• •

t.11^ •

Petroleum Technology Laboratery, Bureau of Mineral Resources, Geology and Geophysics, Canberra


-NOTE:- (I) Unless otherwise stated, the porosities and permeabilities were determined on two small plugs (VAN) cut at right angles from the core.

Ruska porosimeter an'd permeameter were used with, air at 30 p.s.i.g. and dry nitrogen , respectively, as the saturating and flowing media.

(II) Residual oil and water saturations were determined using soxhlet type apparatus. (iii) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NOAUGATHELLA B.M.R. SCOUT No. 3

DATE OF TEST.^22ND JANUARY 1568

-----

Core

No.

Depth

From:-

To:-

Lithology

Average

Effective^,

Porosity from

two"plugs

(% Bulk Vol.)

Absolute

Permeability

(Millidarcy)

Average

Density

(gm :/cc. )

---

Fluid Saturation


Test

Core

Water

Salinity

(P.P.M.

NaC1)

Solubility

In 15% HC1

(% Bulk vol.

...

Fluorescence

of freshly^s...

broken core.^'

V HDry^:

Bulk

Apparent

GrainWater 011

5 97'6"106' 0"

Sandstorm :52 N.D. 1244 1.83 2.69 N.D." N.D. Neg.-,

N.D. N.D. Nil

6 10616".106,11"

II 31 . 1960 N.D. 1.84 2.65 II II it 11 11

___.i.,,

1094 f3"1 1c)12"

11 28 109 559 1. S)2 2.66 11 n 11 n n_._ n

7 116'4" ' 27 242 406 1.94 2.66 n II II II .-.116111"1 2 24 1 1" n 32 1388) 1253 1 .E33 2.66 n n n 11 11 n1 2 31 5" ---- ---- -.

fl 126' 10" II 21 1 3 2.12 2.68 11 11 11 11^. /^11 u-

127' 8" ________ _____ .. _-8 1:5313" /1 :22 N. I). 35 ,^2.09 2.67-,-

n n Sn II It •III

13410"

Remarks:- General File !1.62/399.'

Well File No.



NOTE:- (1) Unless olherwise stated, the porosities and permeabilities were determined on two, small plugs (VU) cut at right angles from the core.

Ruska porosimetee ant! permeameter were used with, air at 30 p.s.i.g. and dry nitrogen^respectively, as the saturating and flowing-media.

(ii) Residual oil and water saturations were determined using soxhlet type apparatus. (11i) Acetone test precipitates are recorded as nil, trace, fair,


WELL NAME AND NO. ATJGATRELLA B.M.R. SCOUT NO. 3 DATE OF TEST. 221D JANUARY 1968

Core

No.

,Depth

From:-

To:-

Lithology

Average


two "plugs

(% Bulk Vol.)

Absolute

Permeability

(Millidarcy)

Average

Density

(gm../cc.)

Fluid Saturation


Test

CoreWater

Salinity(P.P.M.

NaC1)

Solubility

in 15% HC1

(% Bulk vol.

Fluorescence

of freshly\-.

broken core.

V H

^

Dry^:

•kBul

Apparent

GrainWater Oil

9 13612" Sandstone , 26 N.D. 107 1;98 2.69 N.D. N.D. Neg. N.T. N.D. Nil13616” , -______________ .

10 16910" “ 34 1905 2059 1.78 2.66 n ti n it n it

169,9" • .• .10 173'9" It 35 NO). 2306 1.74 2.69 “ n ft n “ n

174'5" _^_- ___

11 210'0" Sandstone 34 11 N.D. 1.94 2.94It n n^. II “ n

210,10" &siltstone -_—__- ____11, 215'18"

21614" ^Sandstone 111 ) . 333 1.s1 2.77_ St itIi

:It " _^it

12 223'8" 11 34 N.D. 106 1.82 2.77 n il n It n n

224'4" S12 227'8" n 34 N.D. 922 1.78 2.72 u H .^It Is^.. H It

228'1"---

--.


Well File No.

I.

Petroleum Technology laboratory, Bureau of Mineral Resources, Geology and Geophysics, Canberra


NOTE:- (1) Unless oiherwise stated, the porosities and permeabilltles were determined on two. small plugs (V&H) cut at right angles from the core.Ruska porosimete0 aid permeameter were used with, air at 30 p.s.I.g. and dry nitrogen • respectively, as the saturating and flowing media.(11) Residual oil and water saturations were determined using soxhlet type apparatus. (111) Acetone test precipitates are recorded as n11, trace, fair,strong or very strong.

JELL NAME AND NO. ATTGATBELLA B.M.R. SCOUT NO. 3 DATE OF TEST. 22N1) JANUARY 1968

CoreNo.

----------- ^

DepthFrom:-To:-

LithologyAverageEffectivePorosity fromtwo plugs(% Bulk Vol.)

—

AbsolutePermeability(111111darcy)

AverageDensity(gc/cc.)


Test

CoreWaterSalinit(P.P.'.NaC1)

Solubilityin 15X HC1

(X Bulk vol.:

Fluorescenceof freshly^\..broken core.^-

V HDry^.Bulk

ApparentGrain

Water 011

9 136'2" Sandstone • 26 N.D. 107 1.98 2.69 N.D. N.D. Neg. Na. N.D. Nil

. 13616" ..,

10\ 16910" 34 1905 2059-

1.78 2.66 “ “ 11 fl • u “

•16919" . )10 17349" 11 35 N.D. 2306 1.74 2.69 u “ 11 u illi u

174'5" . -,11 210'0"

210110"Sandstone

&siltstone34 11 N.D. 1.94 2.94 n n n n I'^....,.^. n

11 _2118" Sandstone 35 1.11) 333 1.81 2.77 111 H u II u IN •

216'4"

12 223'8" u 34 N.D. 106 1.82 2.77 u 11 11 u 11 u

224'4"

12 227'8" ” 34 N.D. 922 ,1.78 2.72...—11 11 • .^11 .11 • 11 11

228'1" ,

Remarks:-^ General File No321399.

Well File No.


CORE ANALYSIS RESULTS----_-,—

NOTE:- (i) Unless otherwise stated, the porosities and permeabilities were determined on two. small plugs (V&H) cut at right angles from the core.Ruska porosimeter ared permeameter were used with, air at 30 p.s.i.g. and dry nitrogen , respectively, as the saturating and flowing media.

(11) Residual oil and water saturations were'determined using soxhlet type apparatus. WO Acetone test precipitates are recorded as nil, trace, fair,

strong or very strong,

WELL NAME AND NO. AUGATHELLA B.M.R. SCOUT NO. 3 --

--DATE- OF -TESL - 22ND JANUARY 1968

Core

No.\

Depth

From:-

To:-

'

Lithology

Average


two

(% Bulk Vol.)

.

Absolute

Permeability(Millidarcy)

Average

Density:^(9 M.ICC. )

-

-..---

Fluid Saturation

(% of pore space).

Acetone

Test

Core

WaterSalinity

(P.P.M.NaC1r

Solubility

in 15% HC1, %Bulk vol.,

Fluorescence

of freshly

core.22-

V Hk

Apparent

GrainWater Oil •

13 33410"

334'7"

Sandstone 31_—_

12. 21--

1.90 2.76 N.D. N.D. Neg. N.D. N.D.••

Nil

,^13 336'0"^ • 336'5"

.^II

.32

•20 15^• ..1.88 2.76: " 11

.^_

u 11

..:__________^.

-11

.

u

4 38118" *

382'4"II 34 N.D. 73 1.77

.

2.70

----

n “ ft. ”

—

n 8

.

14 383 ' 6"384'1"

“ 33 34 38 1.81 2.69 it It

,

“ 11

---

.^II, ill

.

.

.i

J. --

..

..,-

--^-..—.


Well File No.

••••■••■•••■■■•■••■••■

^

ft



NOTE:- (1) Unless olherwise stated, the porosities and permeabilities were determined on two. small plugs (VIII) cut at Mani angles from the core.

Ruska porosimeter anI permeameter were used with, air at 30 p.s.i.g. and dry nitrogen , respectively, as the saturating anc 'loving media.

(II) Residual oil and water saturations were determined using soxhlet type apparatus. (ill) Acetone test precipitates at., recorded as nil, trace, fair,


111••••■•■•••■■•■

WELL NAME AND NO. AUGATHELLA B.M.R . SCOUT NO. 3 DATE OF TEST 22ND JANUARY 1968

Core

No.

•

.

Depth

From:-

To:- '

•

Lithology

Average

Effective

Porosity from

two 'plugs

( % Bulk Vol.)

Absolute

Permeability

(Nillidarcy)

Average

Density(gm:/cc.)

,

'

Fluid Saturation


Test

CoreWater^'

Salinit(p.p.m.

Ná1)

Solubility

in 15% HC1

(% Bulk vol.]

--

Fluorescence

of freshlybreken core.

V H Dry.^:

BUlk

Apparent

GrainMater Oil

13 33410"

3142"SarVi 8 toile 31

---..-

12 21 1.90 2.76 N.D. N.D. 14NT. N.D. • N.D. - NU

13 336'0"336 ' 5"

u

------32

.20 15 1 .88 2.76 It 9 10 it

•

li,

.

ii

• i 4 381-'8"38214"

ii 34 N.D. 73 1.77 2.71) u ii, II lil

...........

11, n

"*".

14 38316"3E411"

u 33 34 38 1.81 2.69 11 It ,, 11

---

b b

— —• .

—^—.

N.)■-.71


Well File No.

N.)

General File No. 62/399.Well File No.

-----_-Remarks:- * Strongly positive phosphate test using ammonium molybdate.

_

Petri:ileum Technology Laboratory, Bureau of. Mineral Resources


, Geolo y and Geophysics, Canberra

NOTE: (i) Unless oilier-wise stated, the porosities and-permeabilities were determined on two small plugs (V&H) Cut it right angles from the core.Ruska porosimeter. and permeameter were used with, air at 30 p.s.i.g. and dry nitrogen:, respectively, as the saturating and flowing media.(ii) Residual oil- and water.iaturations werwdetermined using soxhlet type apparatus.- (iii) Acetone test precipitates are recordedas nil, trace, fair,


.■••■••■•••••• 0.••■••■■•••■••••••■••••••••■•••=0.110,1,.........00••••••••01.

WELL .NAME AND NO. ADAVALE B-.M.R. SCOUT NO. 1

DATE OF TEST. ^1078 MAY 1967

-----^.

• CoreNo.

DepthFrom:-To:-

^----_--:..----_------_-_---_-,^,

LithologyAverageEffectivePorosity fromtwo -plugs(% Bulk Vol.)

AbsolutePermeability(Millidarcy)

AverageDensity(gs,/cc.)

Fluid Saturation(% of pore space)

'

TestAcetone

CorelaterWhit(P.P.M.

NaC1)

SolubilityIn 15% HC1

Bu^volk^l.

Fluorescenceof freshly^..broken core '

— —V

---H

Dry -.Beik

ApparentGrain

Water Oil

•

52'9"5314"

___-_--_----•Siltstone -/7-.^29 97 13 1.91 2.69 27

•••••••••■■••••••••■+

Nil Nil N.D. N.D. Nil

•

92'5" ^9310" ^

Siltstone 38

_-------

mtearmIMOONIMIIMMOIO

N.D. 18

—

1.82 2.93 42 Nil u 11

—

11-

--- ^

II

104'3"10510"•

Siltstone&Sandstone

33.

N.D. N.D. 1.85 2.75 N.D. N.D. N.D. “ ”

_____....

II

—

Nil 2.65 3.05* N.D.

....,

N.D.

.m.m...........

11

•••■■■•••••v

u u 11113'6"

^114'1" ^*Dolo mite? 14 Nil

•

1511"152'10" ^

Siltstone 36 N.D.•

N.D..

---__

1.72 2.69,

-_-_____---------

30 ,Nil Nil 11 n u

_____^ _s----__

6 156'1"6'159"

Sandstone 37•

100 N.D. 1.77 2.77 52

..0•••••■•■

Nil 11

,...............

11

. ^

1/ u

•■•■■■••••■Nrs*.•,=•=.0_____ ---- m.00=0.•••■•■••••■•

AM.1.....1■■

••••

0■■■■■■...* ■■■■••■ ■M.I.W

• .

1041.1WO

t

10.■■■■.M■MOMIM.10■■■•■•■410

Petroleum Technology Laboratory, Bureau of Mineral Resources, Geology and Geophysics, Canlierra


KOTE:- (1) Unless otherwise stated, the porosities and permeabilities were determined on two, small plugs (VW) cut at right angles from the core.Kaska porosimeter and permeameter were used with, air at 30 p.s.i.g. and dry nitrogeu • respectively, as the saturating and flowing media.(II) Residual oil and water saturations were.determined using soxhlet type apparatus. (III) Acetone test precipitates are recorded as nil, trace, fair,strong or very strong.

WELL NAME AND NO. ADAVALE B.M.R. SCOUT NO. 1 DATE OF TEST. 'IOTA MAY 1967

--

Core

No.

------

Depth

From:-

To:-

---

Lithology

Average

Effective

Porosity from

two 'plugs

Absolute

Permeability

(Millidarcy)

Average

Density(gm;/cc.)

Fluid Saturation


Test

CoreWater

Salinit)

(P.P.K.

Solubility

in 15% HC1

(X'Bulk vol.)

Fluorescence

of freshly

broken core.

(% Bulk Vol.) V HDry

Bulk

Apparent

GrainWater 011 NaC1)

1 5219" Siltstone 29 97 13 1.91 2.69 27 Nil Nil N.D. N.D. Nil53'4" . . 1

2 92'5" Siltstone 38 Na. 18 1.82 2.93 42 Nil It It II II

93'0",

.

'

3 104'3" Siltstone 33 N.D. N.D. 1.85 2.75 N.D. Na. N.D. o u It10510" &Sandstone .^.

,11316" *Dolomite? 14 Nil Nil 2.65 3.05* N.D. Na. o^. o o 1111411" ,..; .

5 15'1" Siltetone 36 If a. N.D. 1.72 2.69 30 Nil RI u^, u to152110" ...../

6 156'i" Smulstorma 37 100 N.D. 1.77 2.77 52 Nil 11^• to es u—

156'9"----- ... swaNym.

r

■•■■■•■••.e... moNellimmi*www...04•••• •••■•■ •■•■••■

Reaarks:- * Strongly positive phosphate test using arcunonium molybdate.■

General File No. 60399.Nell File No.

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