“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
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
LI Chuanliang . “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[J]. Lithologic Reservoirs, 2007 , 19(3) : 23 -27 . DOI: 10.3969/j.issn.1673-8926.2007.03.004
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