Yao Hefa, Lin Chengyan, Ren Lihua, Xu Huazheng, Jin Xiuju. POOL-FORMING MECHANISM AND MIGRATION AND ACCUMULATION PATTERNS OF HYDROCARBON IN NORMAL PRESSURE HALFGRABEN-TYPED FAULT DEPRESSIONS[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2005, 27(1): 62-66. doi: 10.11781/sysydz200501062
Citation: Yao Hefa, Lin Chengyan, Ren Lihua, Xu Huazheng, Jin Xiuju. POOL-FORMING MECHANISM AND MIGRATION AND ACCUMULATION PATTERNS OF HYDROCARBON IN NORMAL PRESSURE HALFGRABEN-TYPED FAULT DEPRESSIONS[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2005, 27(1): 62-66. doi: 10.11781/sysydz200501062

POOL-FORMING MECHANISM AND MIGRATION AND ACCUMULATION PATTERNS OF HYDROCARBON IN NORMAL PRESSURE HALFGRABEN-TYPED FAULT DEPRESSIONS

doi: 10.11781/sysydz200501062
  • Received Date: 2004-05-22
  • Rev Recd Date: 2004-11-13
  • Publish Date: 2005-01-25
  • The Gaoy ou Depression in the North Jiangsu Basin is a Cenozoic halfgraben-typed fault depression.Its hydrocarbon pools are do minated by normal pressure,which have the characters of multi-stage evolution and the two stages of pool formation early in the Sanduo period of the Paleogene and late in the Yancheng period of the Neogene and develop reticulated,bedded and faulted three types of conduit systems and lateral,vertical and branchy three kinds of hydrocarbon migration and accumulation patterns.The hydrocarbon migration and accumulation is mainly later al in the K2t—E1f Formation of slope zones,branchy in the E2d-E2s Formation of deep depressed zones and vertical in faulted zones which including shallow (Ny),medium(K2t—E1f) and deep three sets of petroleum measures.

     

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