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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2002  >  24(1): 48-51
JIANG Liang, JIN Qiang, GE He-ping, WANG Wei-feng. ABNORMAL PRESSURE BELTS AND HYDROCARBON ACCUMULATION MODELS IN THE LISHUI SAG,THE DONGHAI BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2002, 24(1): 48-51. doi: 10.11781/sysydz200201048
Citation: JIANG Liang, JIN Qiang, GE He-ping, WANG Wei-feng. ABNORMAL PRESSURE BELTS AND HYDROCARBON ACCUMULATION MODELS IN THE LISHUI SAG,THE DONGHAI BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2002, 24(1): 48-51. doi: 10.11781/sysydz200201048
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ABNORMAL PRESSURE BELTS AND HYDROCARBON ACCUMULATION MODELS IN THE LISHUI SAG,THE DONGHAI BASIN

doi: 10.11781/sysydz200201048
  • 1.

    Mechanism Department, Qinghua University, Beijing 100084, China

  • 2. Donghai Petroleum Company, CNOOC, Shanghai 200030, China

  • 3. University of Petroleum, Dongying, Shandong 257061, China

  • Received Date: 2000-09-15
  • Rev Recd Date: 2001-11-20
  • Publish Date: 2002-01-25
    Abstract
  • It is proved by well data that abnormal high-pressure exists widely in the Paleogene Mingyuefeng Formation of the Lishui Sag,the Donghai Basin.In this paper,the geologic,drilling,logging and testing data are synthesized,the types,genetic mechanism and characteristics of abnormal high-pressure in the Lishui Sag are studied,and the control action of abnormal high-pressure to hydrocarbon migration and accumulation,pool-forming mechanism and hydrocarbon distribution rules is analysed.At last,three models of hydrocarbon accumulation under abnormal high-pressure are summarized,that is,the sandstone accumulation model above abnormal high-pressure sealing layers,the accumulation model within overpressure layers and the accumulation model under sealing layers.These models have important directive significance to hydrocarbon exploration and development.

     

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