Chuong 24 Cac He Thong Thiet Bi Khai Thac Dau

8/3/2019 Chuong 24 Cac He Thong Thiet Bi Khai Thac Dau

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BI GING CNG NGH KHAI THC DU KH

Ging vin : PGS.TS. L Phc Ho

Email : [email protected]

Tel : 84-8-8654086

CC HTHNG THIT B

KHAI THC DU


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702 PGS. TS. L Phc HoCng ngh khai thc du kh

Ni dung

Tng quan v pht trin m thm lc a Vit Nam

H thng thit b pht trin m


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TNG QUAN V PHT TRIN M

Khi nim v pht trin m Pht trin m Vit Nam


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Khi nim v pht trin m

Cn da vo nhng yu t chnh nh tr lng, kchthc v tnh cht ca m, iu kin m ( su m, v

tr m, c s h tng), cng ngh v k thut khaithc du kh hin ti, gi du.

Mt m cn bin thng thng c hiu theo khinim kinh t hn l v mt k thut.

Mt m c xem l cn bin nu n khng th pht

trin bng cng ngh hin ti vi mc li nhun hp l


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Tnh hnh pht trin m Vit Nam

Nhng thun li:

a hnh Vit Nam khng qu phc tp

C s h tng c sn M hnh khai thc n gin

Vn u t ban u thp

Thi gian khai thc ngn Nh nc ang c nhng chnh sch khuyn khch u t vo

cc d n pht trin m cn bin

Gi du th tng vt v gi mc cao nn kch thch cc nhu t nc ngoi tham gia vo d n ny

Trnh khoa hc cng ngh th gii pht trin nhanh, sc

gii quyt nhng kh khn trong qu trnh pht trin m cn bin


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Tnh hnh pht trin m Vit Nam (tt)

Nhng kh khn:

Vn ti chnh lun l thch thc ln nht i vi vic u t

pht trin cc d n du kh, c bit l m cn bin

Kh nng thu ht cc nh thu tham gia u t vo d n thp

Mc ri ro cao trong hot ng du kh

Thiu ngun nhn lc c trnh vn hnh cc cng ngh

mi


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H THNG THIT B PHT TRIN M

1. H thng khai thc

2. ng bao

3. Trang thit b ngm di bin4. H thng ct cha

5. H thng xut du ngoi khi

6. Cc trang thit b x l


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Cc gin khai thc

Gin c nh

Gin t nng

Gin bn tim thy

Tu ch du

Thp c khp ni

Gin c cng bng dy (TLP)


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Gin t nng

Cu trc gm mt sn, phn

thn ging x lan vi cc chndng thanh chng hoc ccng lng vo nhau c th dichuyn c.


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u & nhc im ca gin t nng

Nhng u im

C kh nng di ng cao, n nh khi nng

Chi ph lp t thp vng nc nng khng cn neo c nh

Cc ging vi cc ng bao loi thng thng

Nhng nhc im Vic lp t gin ph thuc vo thi tit

B hn ch bi chiu su hot ng v trng lng ca phn ni

Gii hn trong nhng khu vc m y bin tng i n nh

Gii hn v bn ca kim loi lm gim tui th gin

Khng c kh nng tch cha cc sn phm khai thc


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Gin bn tim thy

- Gin bn tim thy cdng vng nc su

- Nhiu cu hnh khcnhau nhng lun c mtboong ln chim ch di

nc v cc chn nin vi sn ni mt phntrn mt bin

- c neo bng dy ny bin nn c th chuc sng ln trong iukin khc nghit


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u & nhc im ca gin bn tim thy

Nhng u im

Dng c vng nc trung bnh n su

C kh nng nh v ng nn t b dch chuyn di tc ngca thi tit

Chi ph tho d thp

D dng lp t cc ng bao thng thng, cng hoc mm

Cho php khoan v sa cha ging khoan ng thiNhng nhc im

Gii hn trng ti bi cc phao ni v mc n nh

Kh nng tch tr c gii hn, su hot ng t 70m n 1000m

S ging khng qu 40


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Tu ch du

- Chuyn i mt tu ch du c thnh mt gin khai thc

vi chi ph thp v c kh nng cha du, y l u im

chnh

- Trong iu kin thi tit phc tp, vic xut du sang cc

tu ch du gp kh khn th vic trang b thm mt bn

cha m vic khai thc khng b gin on mang

ngha quan trng


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u & nhc im ca tu ch du

Nhng u im

Kh nng tch cha ln

C din tch lp t cc trang thit b x l Gi mua r trn th trng

C kh nng chuyn i cao

D chuyn du t tu khai thc sang tu ch du

Duy tr kh nng khai thc trong iu kin bo

Nhc im

Khng c kh nng sa cha ging

Nhng tu ch du c neo phi khc phc vic dch chuynln, do h thng neo phi kt hp cht ch vi cnh qut

H thng neo phi kt hp vi h thng ng bao

Hat ng su t 50-100m


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Thp c khp ni

Thp c khp ni l mt cu trc c ni vi chn (kiu kt mng trng lc gravity platform hoc bng ct)

y bin bng mt khp ni, thng thng l loi khpccng

V lin kt bng khp ni, ct s di chuyn theo sng vmi hng

K t y bin, nhng thnh phn ca ct nh sau: tm

, khp ni, ct ni, bn ni v nh ct


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u & nhc im ca thp c khp ni

Nhng u im

Cc ct l thp kt cu nh nn gi thnh s khng cao khi so vi cccu trc n nh

Khng nh hng nhiu bi su

Cc ging c th c khoan trc

H thng neo s dng cc b phn c kim chng nh khp

ccng Tha mn s chuyn ng hng ng

C kh nng tch tr trong cu trc nn

Nhng hn ch

Trng ti nh, mt ct c ni bng khp ni kh c th s dngn l nh mt gin khai thc

Khng c kh nng sa cha ging

Khng c kh nng khai thc bng gaslift hoc bm p nc


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Gin TLP

- Gin c c cng bngdy l mt cu trc thp na

chm na ni lin kt vi binbng nhng ng ng thpneo hnh tr.

- Tnh ni t nhin ca gin tonn mt lc hng ln gi chocc chn c cng c nh.

- Tnh n nh c duy tr theochiu thng ng v cho phpdi chuyn nh theo phngngang


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u & nhc im ca gin TLP

Nhng u im

Chuyn ng rt nh theo phng ngang v khng chuyn ngtheo phng thng ng

Cu trc cc dy cho php gim h s chi ph theo chiu di so vicc gin thng thng, ngha l h thng ny s r hn mt hthng thng thng vng nc su

Hu ht cc trang thit b c lp rp theo mun, c th c lp

rp gn b trc khi ko n v tr khai thc Trng ti ln nhng iu chnh trng lng l yu t quyt nh then

cht

Cu trc ny c th c xy dng trong mt xng ng tu

C th cho php sa cha ging khoanHn ch

B gii hn vi su trn 150m

Khng th chuyn i t mt gin bn tim thy sang TLP


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NG BAO

Tiu chun thit k ng bao

ng bao mm


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Tiu chun thit k ng bao

Tiu chun thit k ng bao c da trn cc c im ca vngm v cc yu t khc trong h thng khai thc, c th nh sau:

Th tch v s lng cc bung khai thc

Mc a dng ca h thng ngm di bin

Nhng yu cu v khai thc th cp (nh bm p nc, gaslift)

Kh nng khoan v sa cha ging ca gin khai thc

Kh nng chu ng bo xu nht trong vng 100 nm

Cc yu cu v xut v bn du

Kh nng m rng cho vic lp t cc thit b mi

Cc yu cu v lp t, bo tr v sa cha


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ng bao mm

Nhng u im chnh ca ng bao mm so vi ng baocng:

Chi ph u t thp Khng cn phi thu hi ng bao trong nhng iu

kin thi tit kh khn, ngha l gim thi gian ginon v khai thc tt hn

Lp t d dng v nhanh chng

D dng m rng theo lu lng ca h thng

nh hng nh n thit k gin ni Kh nng chu n mn tt

Chi ph bo dng thp


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Cu trc ca ng bao


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Mt ng dng ca ng bao


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3- Trang thit b ngm di bin

Template

Cc ging

Cm phn dng

H thng iu khin


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Subsea Template

Mt subsea template n gin l mt cu trc thp hnh trln c thit k cho mt s cc u ging lp vo cc cythng cho cc ging, c th l ging khai thc hoc ging

bm p. Mc ch ca template l cung cp mt tm mqua cc ging c khoan; n cng t v sp cho thnghng cc trang thit b u ging

Cc template c th xy dng theo khi hoc tng module.

Mt template khi thng thng c s dng khi cnkhoan t 6 ging tr ln; template c hn t cc b phnhnh tr ln v kt hp cht ch ch cha cho mi ging vmt h thng cn bng 3 hoc 4 im. Vic dn hng cho

cc thit b khoan thng c thc hin thng qua vic sdng nhng ct dn hng hoc nhng cu trc dn hngc kh nng thu hi


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Cc u ging ngm

Mt yu t quan trng c xem xt n trong vic pht trin mcn bin l chi ph thit b dng cho hot ng khai thc khi trlng cc m ny l khng ln. Do cc u ging c t

ngm di y bin c u tin chn la cho cc gin khai thcni hoc ni kt vi cc gin c nh sn c t trc gn . Ccging c t ngm di y bin c th l cm ging hocging v tinh. i vi cc ging c gom thnh cm thng

thng c khoan qua mt khung nh v (template) t diy bin, trong khi cc ging v tinh c khoan ring l v cni ti cc cm phn dng c th nm cch 8-12 km.

Mt cch phn loi khc l gia ging ngm di bin t hockh. Cc ging t l nhng ging c cy thng khai thc v ccthit b lin quan c h trong mi trng bin, ngc li ccging kh - nm trong mi trng p sut kh quyn


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Cm phn dng ngm di bin

- Cm phn dng ngm di bin l ch giaonhau gia trang thit b khai thc ngm dibin v h thng ng bao khai thc.

- Cm phn dng hot ng nh mt imngm di bin m ti cc ng ngkhai thc/bm p v ng ng vn chuyn /

xut du c gom li.

- Cm phn dng hay ng bao c th lmt b phn ca template. Cm phn dng lmt cu trc thp hnh tr c c nh bng

cch ng vo y ging; n c thit kcho cc ng dng c th v kh c th thchhp cho nhng cu hnh pht trin khc


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H thng kim sot ngm di bin

H thng iu khin thy lc: c th iu khin trc tip, gin tiphoc theo trnh t. H thng ny c u im l n gin, ng tin cyv chi ph thp cho cc thit b lin quan. Nhng nhc im ln l kh

nng truyn tn hiu tng i chm khi khong cch t gin khai thcn cc u ging ngm cng xa, n ph thuc vo khong cch mdung dch thy lc di chuyn. Thi gian p ng chm l kh chpnhn c cho nhng hot ng khn cp.

H thng in c u im l thi gian p ng nhanh, thch hp chocc hot ng khn cp, nhng khng ng tin cy trong thc t dohay gp phi nhng h hng trong h thng iu khin.

H thng a thnh phn in thy lc: khc phc c nhcim ca cc h thng trn. H thng ny c thit k kim satv gim st cc cy thng khai thc, cng nh hu ht cc cm vanc t trn template.


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H thng ct cha

C s la chn

H thng ct cha ni

H thng ct cha bng thp c khp ni

H thng ct cha SPAR


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C s la chn

la chn mt h thng lu tr m thch hp cn ch mt svn sau:

Thi gian xy ra bo v khong thi gian gia cc cn bo

Lu lng du khai thc v vn chuyn

Khong cch t m n cng bc hng

Tc ca cc tu ch du con thoi

S lng v kh nng cha ca cc tu ch du con thoi Hiu qu ca trang thit b cng bc hng

Thi gian bo dng h thng bm du (cc u ni mm,dy cp,)

Cc nhn t mi trng c lin quan n vic chn loi cu trcct cha nhng nhng nhn t lit k trn chi phi lng cha cnthit


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H thng ct cha ni (Floating Storage Unit FS

H thng ct cha FSU l phng php ph bin

nht cung cp ni cha m cho vng m

FSU l nhng tu ch du c chuyn i hoc

ch to theo n t hng ring

H thng ni sn xut - tch tr - rt du

(Floating Production Storage and Offloading) c

nhiu c trng ca FSU nhng c thm cc thit

b x l trn boong


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H thng ct cha bng thp c khp ni

Cc thp c khp ni c xem nh mt gin khai thc

v l mt h thng ct cha.

Kh nng cha ca h thng l kt qu ph ca vic

thit k dng ct. Ct khp ni c th c mt cu trc

hnh tr rt ln chm di nc, va c tnh ni va cchc nng n nh. Cu trc ny l mt khoang rng, c

th b tr thnh mt dy cc ngn cha c s dng

lm vng cha m nu tu ch du b gin on


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H thng ct cha SPAR

SPAR l mt loi neo ni n c Sell pht trin, kt hp cht ch khnng cha du, do ngay c khi iu kin thi tit tm thi ngn cnvic bm du ln tu ch du, vic khai thc cng khng b tm ngng. tng SPAR c da trn mt cu trc ni ln, vi mt b phn rt

ln chm di nc, bm du ngoi khi.Nhng u im ca SPAR l:

Cu trc n nh

Hot ng tt trong nhng iu kin thi tit v mi trng khcnghit

C kh nng tch cha ln (300000 thng du trong 6 bn charing)

C kh nng hat ng vng nc suNhng nhc im:

C s dch chuyn theo phng ngang

Khng c kh nng khoan/sa cha ging


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H thng xut du

Nhng h thng neo n b mt

Nhng h thng chm

H thng tch tr v khai thc b mt


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Nhng h thng neo n b mt

c im chung: H thng neo n b mt c cc b phn bn trn ni trn b

mt v chc mt im dng rt du c th xoay quanh lmcho tu cha c th thay i hng do nhng tc ng ca thitit

Cc thit b lin quan nh ng mm ti lu, dy cp neo cni ti phn mi ca tu rt du

H thng neo dn n b mt bao gm 2 loi c bn: Gin c khp ni (Articulated Loading Platform ALP): ALP bao

gm mt thp bng thp, c cu trc trng lc bn trn y bin.u khp xoay c th chu c ti trng 350 tn, cho php n

xoay quanh bn l theo trc x y. Phao neo n (Subsea Bouy Mooring SBM): c trng cho h

thng xut du bng phao neo n, gm phao trn b mt nivi nhng si xch (6 hoc 12) gn cht y bin


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Nhng h thng chm

c im chung:

c im chnh ca h thng chm l khng c dy cp

Thit b cha gi nguyn di su cho ti khi c ko ln bi tu ch

du. Khi s dng nhng h thng ny th phi c nhng s thay i th yu t

phm vi mi tu chp nhn dy xch neo v ng mm dn lu

S dng tu ch du c h thng nh v ng lc c nhiu u im hn

nhng h thng ny5 loi h thng chm c bn sau:

H thng cha ti ngoi khi (Offshore Loading System OLS): cmt khung bng thp t trn y bin. Khong h bn trn mc ca phaonng phi su cho php nhng tu thuyn c ln c th chy qua.Thng c mt khp khuyn c lp t trn phao hnh trn, cho phpchuyn ng khng b cn tr i vi tc ng ca tu thuyn v thi tit.ng mm dn lu c ni vi phn mi ca tu. Khng c dy cp vtu cha c nh v bi h thng nh v ng (Dynamic Positioning

DP)


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Nhng h thng chm (tt)

H thng cha ti chm (Submerged Turret Loading STL)

y l s ci tin ca h thng OLS. Phao chm l im

cao nht ca h thng c thit k gn kht vokhoang STL ring bit trong thn ca tu cha, thngthng c t vo phn na trc ca boong tu

Khoang STL t vo khp khuyn xoay p lc cao. STL

c s dng nh b phn trung gian ca s nh v vvn chuyn du ti FPSO v FSU. Nhng tu cha thchhp vi h thng ny c th nh v ng hay bng chnvt thng thng nhng thit k phi c khoang STL.


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Mt ct ca phao STL


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Lin kt tu du vi STL


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Nhng h thng chm (tt)

H thng neo bng xch ba chn (Tripod Catenary Mooring System TCMS): h thng ny c pht trin u tin dng kho st ging.Hin nay c ci tin v dng khai thc sm khi pht trin m cn binv c xem xt nh mt gii php nhiu tim nng. H thng neo gm c

b phn m neo ba chn. Tu cha ch i hi c nhng sa i ti thiuv hnh dng hng nghing ca ng dn lu v c gn kht vo phnmi ca tu cha. H thng neo ny c th s dng cho tu ch du conthoi hay cho tu cha xut du th (tu cha c b phn tho sau Stern

Discharge System SDS) H thng khai thc neo n (Single Anchor Production SAP) v h

thng cha ti neo n (Single Ancho Loading SAL): hai h thngny thch hp i vi s m rng nhng ging kho st, nhng giai onpht trin sm v cng dng h tr chu ti ngoi khi. Nguyn l bneo da trn sc ht ca m neo cng kt hp vi khp khuyn nhiu lp lc cao v khp khuyn dy neo. Khp khuyn dy neo chu hu htnhng lc t nhng dy neo v dy c ni ti tu cha thng qua phaoni.


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H thng SAL


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H thng SAP


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H thng tch tr v khai thc b mt

Bao gm hai h thng chnh FPSO v FSU, l ch

cha m bo m cho vic khai thc lin tc trong

nhng iu kin thi tit phc tp v xut du.

Cc h thng ny s c xem xt chi tit phn Cc

loi tu ng dng trong khoan v khai thc du kh


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Trang thit b x l

H thng thu gom

H thng tch

H thng x l v bn kh


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H thng thu gom

Sn phm khai thc t nhiu ging c dn chung n cc thit bx l bng ng ng khai thc chnh

Mi ng ng khai thc chnh sau c vn chuyn ton b haymt phn sn phm n mt trong nhng seperation trains, l nhngb phn u tin ca h thng tch.

Mi ging khai thc c kim tra nh k (dn dng chy vo mt h

thng kim tra), do mi ging cng c ni vi mt ng ngkim tra.

Nu m gm nhng ging c dng chy p sut khc nhau, mtvi ging c th khng p sut chy vo cp u tin ca h

thng tch. Trong trng hp ny mt ng ng dn c p sutthp c cung cp cho nhng ging , bo qua bnh tch u tinhay bnh tch p sut cao v chy trc tip vo bnh tch hot ng p sut thp hn.


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H thng thu gom (tt)

Cum phn dng c th c t ngm di bin hay t trn

gin khai thc

Vic phn dng y bin c u im l c cu hnh ng

bao n gin v lin quan n vic lp n gin mt khp

khuyn p sut cao

Vic phn dng trn b mt c u im l d dng tip cn

tt c cc van v ng ng hot ng v loi b c chi

ph ng k lin quan n th ln. Ti trng pha trn lin

quan n vic phn dng trn b mt l ng k cho h

thng khai thc bn tim thy


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H thng tch

Mi ging c t l du-kh-nc khc nhau. Mt trong nhng

chc nng chnh ca h thng khai thc l tch cc cht lu t

ging thnh nhng pha ring. Vic tch ch yu da vo t trngca du-kh-nc

My tch phi c thit k lm gim ti thiu tc ng ca s

lc l, va p v nhi sng trong hot ng nh lp t cc mng

ngn, tm chn dng cong mt tip xc du/nc cc bnhtch

( )


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H thng tch (tt)

Trong iu kin thi tit n ha, cc chuyn ng lc l c

khuynh hng gim ng k. Do , cc dch chuyn lc l l

vn c th khc phc c cho cc bnh tch ni

Cc nghin cu nh hng ca nhng dch chuyn ca cc tutrong hot ng ca cc thp chng ct cng c tin hnh

cho thy, trong khi gc nghing c tc ng bt li ln hiu qu

ca cc bnh, th nhng chuyn ng ngu nhin do bin s ch

c tc ng khng ng k nu c nhng iu chnh thch hp

cho cc khay bn trong

H thng x l v bn kh


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H thng x l v bn kh

Cc kh ng hnh thng thng c t trn cc gin khai

thc. Tuy nhin, nhng kh ny c th c s dng:

Kh nhin liu cho my pht in

Bm p duy tr p sut va

Bn chng nu c ng ng dn vo t lin H thng kim sot v qun l ton b kh khai thc cn

c lp t

Cc tay uc thng thng c s dng trn gin c nh

cng nh cc gin bn tim thy.

T t h t d


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Tu ct cha v rt du

Thit b cha ni

H thng ni khai thc tch cha rt

du (FPSO)

Thit b h i


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Thit b cha ni

FSU l mt trong nhng cch bo v cc thit b

di y bin, nh h thng STL nm trong khoang

STL thn ca FSU Du th c bm bng ng ng ngm ti thit b

FSU khong cch t 1,5 n 2 km

Thit b FSU bm du th trc tip vo trong nhng

thng cha (Cargo Tanks) v khi gn hon thnh, tu

ch du ti tin hnh rt du ni tip s dng h

thng tho sau (SDS)

FSU khng c thit b x l trn boong, chtch tr

H thng FPSO


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H thng FPSO

H thng ny c lp t mi hoc chuyn i t cc tu cha.neo FPSO vi y bin ngi ta dng neo chm, vic xut du thc thc hin bi c cu tho sau ti tu ch du.

Cu trc ca FPSO bao gm:

Khu vc x l trn boong gm cc bnh tch, thit b nn kh,uc t kh ng hnh, h thng thot kh v c cu bm pha cht

Khu vc nh v cc phng iu hnh Khu vc d ti ui tu gm cc ng rt du ni t khu vc

d ti sang tu ch du

Cc bn cha

H thng chn vt trc v sau tu Dy neo neo tu xung y bin

Cc ng bao mm khai thc

H thng FPSO


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H thng FPSO

H thng FPSO lin kt vi neo STL


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H thng FPSO lin kt vi neo STL

Cc loi tu ch du con thoi


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Cc loi tu ch du con thoi

Cc tu ch du con thoi c s dng vn chuyn du t ni

khai thc n cc v tr thu mua v ch bin.

Tu ch du phi c neo li an ton trong thi gian ch rt du

Tu ch du c th c neo v rt du trc tip hoc thng qua

h thng SDS vi FPSO.y l giai on rt quan trng trong ton

b hat ng ca tu ch du con thoi nn cn phi tm hiu svn hnh ca tu ch du khi lin kt vi cc thit b xut du khc

nhau:

Lin kt vi cc h thng ni neo n b mt

Lin kt vi cc h thng chm

Lin kt vi h thng tch tr khai thc b mt



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Thng thng tu ch du tip cn h thng ni neo n b mt(ALP,SBM) theo hng gi hoc theo hng dng nc; ngtip cn ca tu theo hng gn nh thun nghch vi gc ca taycu dn lu (loading boom); thng xui dng tn hiu; ng mmxut du c neo b mt

Hng tip cn ca tu du b hn ch nu gp cc vt cn k cn(gin khai thc, gin khoan di ng hoc ng ng dn). Mt vigc tip cn l khng th thc hin c, tr khi u ca tay cudn lu c th xoay bi nhng lc c tc dng t bn ngoi, vicny phi c s gip ca cc tu h tr (support vessel)

B phn neo ca tu v h thng nh v bng cp hoc bng nh vng lc. Khi th neo, ng mm dn lu c ko bng ti lnboong tu ch du v c gn vi cm ng phn dng dn lu



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Cc h thng chm bao gm 5 h thng:

H thng OLS: lin kt vi tu ch du con thoi, tu nh v bng

DP

H thng STL: lm trung gian nh v, vn chuyn du ti

FPSO v FSU. Tu ch du khng lin kt trc tip vi h thng

ny m qua h thng SDS ca FPSO v FSU

H thng TCMS: s dng lin kt trc tip tu ch du con

thoi hay lin kt vi tu cha

H thng SAP v SAL.

Lin kt vi h thng khai thc v tch tr b mt


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Lin kt vi h thng khai thc v tch tr b mt

Bao gm hai h thng FSU v FPSO (tm gi chung

l tu cha). Tu ch du tip cn theo hng song

song vi h thng tu cha. Tu cha nm ngtrc tu ch du thng lc ca mi trng. S

b neo v mc ni thit b c thc hin c s gip

ca tu h tr. Cn phi s dng tu ch dunh v bng ng lc, nhm ngn nga kh nng tri

dt do sng v dng hi lu. Tu ch du lin kt

rt du vi tu cha thng qua h thng SDS.

H thng SDS


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H thng SDS

H thng SDS cung cp phng tin rt du qua tu ch du conthoi hay tu ch du thng mi, ph hp vi h thng cha ti ni(Blow loading system BLS) thng qua ng d ti (discharge hose)khi cc tu ch du c neo vi tu cha

SDS bao gm mt h thng neo v mt h thng vn chuyn c btr phn ui ca tu cha du. c khng gian cho h thngSDS v h thng neo th tu ch du cn c thm mt boong gin

c b tr pha trn boong chnh khi cn thit. n gin v hiuqu trong vic sa cha, bo tr trong qu trnh hot ng bnhthng ca SDS th cc thit b ng phi c b tr ngay phangoi ca tu

S phn loi SDS theo phng thc b tr ct gi cc ng d ti. Cba loi: SDS gung (Reel storage), SDS ngang (Horizontal storage chute), SDS ng ni t do (free floating hose)

H thng SDS trn tu


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H thng SDS trn tu

Cc dng SDS


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Cc dng SDS

SDS (rell, chute v freefloating)

Qu trnh rt du


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Q

SDS l mt h thng b ng khi rt du t tu chasang mt tu khc, tu ch du hon ton ch ngtrong vic lin kt/ngt lin kt v rt du. trong sut

qu trnh rt du th tu ch c neo vi tu cha Trong qu trnh rt du th ng d ti c treo t do

vo lin kt cu (ball joint) gung ng d ti

(discharge hosereel) v th ng d ti c th chuynng t do theo c phng ngang v dc nn trnhc moment un cho ng d ti. pha tu ch

cng vy, ng d ti c treo t do nn trnh ccc s mi mn do va chm

Qu trnh rt du (tt)


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( )

Qu trnh bnh thng khi kt ni vi tu ch du con thoi: Tu ch du tip cn tu cha khong cch khong 50 m. Mt ng dy c st bt u c chuyn t tu cha qua tu ch

du

ng dy u bc st v ng dy thng tin kt ni SDS. Sau ng dy thng tin c chuyn n tu ch du v kt ni vi thitb ti ca tu ch du

Thit b ti iu khin dy cp (Hawser Handling Winch) ca SDS nhdy cho n chui xch, trong khi tu ch du ko bng ti ko. Phnui ca ng dn c ni vo chui xch bng mt dy lng.

Thit b ti iu khin dy cp v gung ng (Hosereel) s nh dy cpv ng khong 40 m xung nc trc khi tu cha bt u ko dycp v ng ln. Ti ko ca tu ch (Traction Winch) tip tc ko dyv ng v pha minh trong khi thit b ti iu khin dy cp v gungng ca SDS iu khin s di chuyn ca dy v ng.

Khi ton b dy cp c ko th dy xch c kha vo tu ch du,tu ch du c neo an ton vo thit b SDS.

Lc ny ng d ti cng c gn kt vo ng v tr trn tu ch du.Qu trnh kt ni hon tt.

Qu trnh rt du (tt)


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Qu trnh tho kt ni ca tu ch du vi SDS

Dy cp v ng c tho khi tu ch v c h

thp xung

Tu cha s dng thit b ti iu khin dy cp v

gung ng ko dy v ng v

ng d ti s c lm kh v lm sch bng kh tr

Chuong 24 Cac He Thong Thiet Bi Khai Thac Dau

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Transcript of Chuong 24 Cac He Thong Thiet Bi Khai Thac Dau