Oil & Gas Geology ›› 2007, Vol. 28 ›› Issue (2): 266-273.doi: 10.11743/ogg20070219

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Carrier system and its effects on the hydrocarbon pooling in Tazhong area,Tarim Basin

Wei Fujun1,2, Gao Zhiqian1, Fan Tailiang1, Li Yao1, Zeng Qingbo1   

  1. 1. School of Energy Resources, China University of Geosciences, Beijing 100083;
    2. Sinopec International Petroleum Exploration and Production Corporation, Beijing 100083
  • Received:2006-04-13 Online:2007-04-25 Published:2012-01-16

Abstract:

Based on seismic,logging,and test data,an analysis was carried out on the carrier systems of Tazhong area,Tarim Basin.The result indicates that faults,fractures,unconformities,karst,and sandbodies are the fundamental components of the hydrocarbon carrier systems in Tazhong area.The plane distributions and vertical evolutions of the carrier systems vary greatly with different structural periods and different sequence boundaries.The effectiveness of the spatial arrangement of carrier system and hydrocarbon kitchen determines the hydrocarbon pooling in the area.Fractures and unconformities are well developed and act as the main migration pathways for hydrocarbon in the area.Tazhong area has the character of multistage hydrocarbon generation,multi-pathways,and multistage hydrocarbon accumulation,with the late Caledonian,the early Hercynian,and the late Hercynian being the main hydrocarbon accumulation periods.

Key words: hydrocarbon kitchen, base unit, carrier system, reservoiring efficiency, Tazhong area, Tarim basin

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