Lithologic Reservoirs ›› 2007, Vol. 19 ›› Issue (3): 23-27.doi: 10.3969/j.issn.1673-8926.2007.03.004

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“Multi-factor controlling , four-factor entrapping and key-factor enrichment”of stratigraphic-lithologic reservoirs and exploration practice in Erlian Basin ( Ⅱ) ———“Four-factor entrapping” mechanism

JIN Fengming,ZHAO Xianzheng,ZOU Weihong,LU Xuejun,SHI Yuanpeng,CAO Lanzhu,LU Lifei   

  1. Huabei Oilfield Company , PetroChina, Renqiu 062552 , China
  • Online:2007-09-15 Published:2007-09-15

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Abstract:

Based on the analysis of the hydrocarbon accumulation conditions for stratigraphiclithologic reservoirs in different sags in Erlian Basin , the accumulation of the stratigraphic-lithologic traps is considered to be controlled by four factors. On the premise of traps and oil sources , favorable migration pathway is the background for the forming of the reservoirs ; the features of fluid dynamics are closely related to the distribution of the reservoirs ; the res-ervoir critical property is the deciding factor for the hydrocarbon injection ; the sand body sealing is the key factor for the accumulation.

Key words: reservoirs , horizontal well , bottom water , coning , edge water

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