Main controlling factors and models of oil and gas accumulation and distribution in uplift area outside source rock: An example from Fuyu oil layer in Xingbei area, Songliao Basin
Online published: 2013-09-26
Based on the study of reservoir types and distribution law, this paper studied the main controlling factors and models of oil and gas accumulation and distribution of Fuyu oil layer in Xingbei area by comprehensive analysis of oil and gas distribution and accumulation conditions. The result shows that oil and gas of Fuyu oil layer mainly distribute in the north of central anticline zone and in southwest of Xingbei area. The oil and gas accumulation and distribution of Fuyu oil layer in the north of central anticline structure zone is controlled by following two factors:①lateral transporting of fault provides migration pathway for oil and gas accumulation;②the high position of anticline structure in the north is favorable for oil and gas to accumulate. The oil and gas accumulation and distribution of Fuyu oil layer in the southwest
of Xingbei area is controlled by following two factors:①lateral transporting of sand bodies provides migration pathway for oil and gas accumulation;②antithetic fault controls oil and gas enrichment. There are two oil and gas accumulation models in Xingbei area: one is that oil and gasmigrate through faults and accumulate in high position of anticline structure,and mainly distribute in the north of central anticline structure zone; the other is that oil and gas migrate through sand bodies and are sealed by antithetic faults, and mainly distribute in the southwest ofXingbei area.
ZHANG Menggang , HONG Zhong , DOU Yutan , CUI Xiaojie . Main controlling factors and models of oil and gas accumulation and distribution in uplift area outside source rock: An example from Fuyu oil layer in Xingbei area, Songliao Basin[J]. Lithologic Reservoirs, 2013 , 25(5) : 13 -17 . DOI: 10.3969/j.issn.1673-8926.2013.05.003
/
〈 |
|
〉 |