KANGEAN BLOCK NORTHEAST JAVA BASIN Oleh : Aluwisia Juli H (26139) Herning Dyah K W (26491)
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Transcript of KANGEAN BLOCK NORTHEAST JAVA BASIN Oleh : Aluwisia Juli H (26139) Herning Dyah K W (26491)
KANGEAN BLOCKKANGEAN BLOCKNORTHEAST JAVA BASINNORTHEAST JAVA BASIN
Oleh :Oleh :
Aluwisia Juli H (26139)Aluwisia Juli H (26139)
Herning Dyah K W (26491)Herning Dyah K W (26491)
LOKASI LOKASI
Pembagian daerah secara geologi (geological province)
dan sumur pada blok Kangean (Phillips et al.,1991)
GEOLOGI REGIONALGEOLOGI REGIONAL
REGIONAL TECTONIC SETTINGREGIONAL TECTONIC SETTING• Pre tertiary Pre tertiary • TertiaryTertiary
Back arc basinBack arc basin Paleogene ekstensional riftingPaleogene ekstensional rifting Neogene compressional wrenchingNeogene compressional wrenching Plio- Pleistocene Compressing Plio- Pleistocene Compressing Thrust foldingThrust folding
REGIONAL REGIONAL STRATIGRAPHYSTRATIGRAPHY
Fase transgresi Eosen – Oligosen Fase transgresi Eosen – Oligosen AwalAwal
Fase Transgresi Oligosen Akhir – Fase Transgresi Oligosen Akhir – Miosen AwalMiosen Awal
Fase regresi Miosen TengahFase regresi Miosen Tengah Fase regresi Miosen Akhir - PliosenFase regresi Miosen Akhir - Pliosen
REGIONAL TECTONIC SETTING
(Manur, H. & Barraclough, R., 1994)
HIGH & LOW PATTERN
(Mudjiono R & Pireno G., 2001 dengan modifikasi)
LOCAL TECTONICLOCAL TECTONIC
Cretaceous subductingCretaceous subducting Cret. syncline Cret. syncline Paleocene/Eocene backarc extensionPaleocene/Eocene backarc extension
E – W Half grabenE – W Half graben Early – Middle Miocene N – S compressionalEarly – Middle Miocene N – S compressional
Uplift of Central HighUplift of Central High Late Miocene N – S compressionalLate Miocene N – S compressional
uplift & inversion half graben uplift & inversion half graben Pagerungan young anticline Pagerungan young anticline
Present day compressionalPresent day compressional
Tectonic Model of East Java – Biliton Basinal AreaTectonic Model of East Java – Biliton Basinal Area
(Purnomo J & Purwoko 1994)
FOUR DISTINCT FOUR DISTINCT STRUCTURAL PROVINCESSTRUCTURAL PROVINCES
Northern PlatformNorthern Platform Central highCentral high Kemirian TerraceKemirian Terrace Southern BasinSouthern Basin
Structural ProvinceStructural Province
Pembagian daerah secara geologi (geological province)
(Phillips et al.,1991)
BASIN CONFIGURATION Syn – rift : Paleocene – Mid. Eocene
Pre – Ngimbang :ss, shale, coalNgimbang Clastic :q ss-shale, coal
Rifting : EoceneNgimbang Carbonate
Sagging : Late EoceneNgimbang ShaleKujung Fm : carbonate, shalePrupuhFm : carbonateCepu Fm : shaleRancak Fm : carbonate
Inversion : Late Miosen Mundu Fm : shale
Paciran : carbonate Lidah : shale
LOCAL LOCAL STRATIGRAFI STRATIGRAFI
COLUMNCOLUMN
(Phillips et al.,1991)
Cross section of Northern PlatformCross section of Northern Platform
(Phillips et al.,1991)
PETROLEUM SYSTEMPETROLEUM SYSTEM
Source rock : Source rock : Clastic Pre –NgimbangClastic Pre –NgimbangClastic NgimbangClastic Ngimbang Pre Tersier (post mature) Pre Tersier (post mature)
Reservoar :Reservoar : NgimbangNgimbang : SS, Carbonate: SS, Carbonate PrupuhPrupuh : Carbonate: Carbonate Paciran Paciran : SS, Carbonate: SS, Carbonate
TrapTrap ::• Structural Structural :Pagerungan Anticline :Pagerungan Anticline• Stratigraphy :Carbonate (build up)Stratigraphy :Carbonate (build up)
SealSeal ::
NgimbangNgimbang Shale Shale
LIdahLIdah
Oil Migration :10 MA (Peak oil Ngimbang)Oil Migration :10 MA (Peak oil Ngimbang) 10 MA (10 MA (Peak gas Pre NgimbangPeak gas Pre Ngimbang))
Regional Tectonic SettingRegional Tectonic Setting
(Manur, H. & Barraclough, R., 1994)
Major Tectonic Framework In Western IndonesiaMajor Tectonic Framework In Western Indonesia
(Purnomo J & Purwoko 1994)
Regional StratigraphyRegional Stratigraphy
(Purnomo J & Purwoko 1994)
Seismic Cross Section Northern PlatformSeismic Cross Section Northern Platform
(Phillips et al.,1991)