kangean block northeast java basin oleh : aluwisia juli h (26139) herning dyah k w (26491)
TRANSCRIPT
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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)
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LOKASI LOKASI
Pembagian daerah secara geologi (geological province)
dan sumur pada blok Kangean (Phillips et al.,1991)
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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
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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
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REGIONAL TECTONIC SETTING
(Manur, H. & Barraclough, R., 1994)
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HIGH & LOW PATTERN
(Mudjiono R & Pireno G., 2001 dengan modifikasi)
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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
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Tectonic Model of East Java – Biliton Basinal AreaTectonic Model of East Java – Biliton Basinal Area
(Purnomo J & Purwoko 1994)
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FOUR DISTINCT FOUR DISTINCT STRUCTURAL PROVINCESSTRUCTURAL PROVINCES
Northern PlatformNorthern Platform Central highCentral high Kemirian TerraceKemirian Terrace Southern BasinSouthern Basin
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Structural ProvinceStructural Province
Pembagian daerah secara geologi (geological province)
(Phillips et al.,1991)
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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
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LOCAL LOCAL STRATIGRAFI STRATIGRAFI
COLUMNCOLUMN
(Phillips et al.,1991)
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Cross section of Northern PlatformCross section of Northern Platform
(Phillips et al.,1991)
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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
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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))
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Regional Tectonic SettingRegional Tectonic Setting
(Manur, H. & Barraclough, R., 1994)
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Major Tectonic Framework In Western IndonesiaMajor Tectonic Framework In Western Indonesia
(Purnomo J & Purwoko 1994)
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Regional StratigraphyRegional Stratigraphy
(Purnomo J & Purwoko 1994)
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Seismic Cross Section Northern PlatformSeismic Cross Section Northern Platform
(Phillips et al.,1991)