西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (5): 41-46.DOI: 10.3863/j.issn.1674-5086.2010.05.006

• 地质勘探 • Previous Articles     Next Articles

THE PATTERN OF HYDROCARBON DISTRIBUTION AND HYDROCARBON ACCUMULATION MODEL IN THE SOUTH OF LIXIAN SLOPE

YANG Fan1,YU Xing-he2,LI Sheng-li2,ZHANG Feng3,REN Xiao-jun4   

  1. 1.Research Institute of Petroleum Exploration and Development,CNPC,Haidian Beijing 100083,China;2.School of Energy Resources,China University of Geosciences(Beijing),Haidian,Beijing,100083,China;3.Reservoir Evaluation Department,Huabei Oilfield,CNPC,Renqiu Hebei,062552,China;4.International Petroleum Exploration and Production Corporation,SINOPEC,Haidian Beijing,100083,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-10-20 Published:2010-10-20

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Abstract: The exploration degree in middle-south part of Lixian Slope is relatively low,making the hydrocarbon distribution pattern and hydrocarbon accumulation model of the known reservoirs unclear.It is assumed that the hydrocarbon accumulation model is mainly “stepped-like”,but this model conflicts with the distribution of reservoir.Through comprehensive study of faults activity phases and depositional system,we conclude that the late developed and late ended faults control the vertical migration path,while connected sand bodies provide lateral migration path for oil and gas.Combining the distribution of known reservoirs and research of oil-source correlation,we find that the hydrocarbon accumulation model in middle south part of Lixian Slope is characterized by dual source,long distant migration,multi- oil-bearing zone and shallow formation parallel migration.This model provides the direction and clue for further exploration and development,which is “based on shallow formation;finding subtle structure trap by finely seismic interpretation and determining sedimentary micro-facies accurately.”

Key words: middle south part of Lixian Slope, reservoir distribution, accumulation model, parallel migration

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