Physical simulation on hydrocarbon accumulation of lithologic reservoirs and its mechanism in continental rifted basin
Online published: 2011-12-20
As the hot spot and emphasis of petroleum exploration, lithologic reservoir is the main type of subtle reservoirs for increasing reserves in continental rifted basin, but there are many differences of cognition in the aspect of migration process and hydrocarbon mechanism. According to the hydrocarbon accumulation characteristics of lithologic reservoirs in continental rifted basin, the physical simulation on hydrocarbon accumulation process was carried out, and the accumulation mechanism of lithologic reservoirs was studied. The result shows that lithologic reservoirs have differences in accumulation process, accumulation characteristics and accumulation efficiency under different conditions. The episodic accumulation has high accumulation efficiency and high speed characteristics. Hydrocarbon source conditions, charging patterns, pressure, faults, sand bodies properties are the main controlling factors of lithologic reservoir accumulation. Among these conditions, fault connected migration pathway is the critical factor of lithologic reservoir forming. The research results may have important significance for research of hydrocarbon accumulation mechanismof lithologic reservoirs in continental rifted basin.
ZHAO Xiaoqiang , WAN Youli , YI Chao , ZHANG Shimao , HE Yong . Physical simulation on hydrocarbon accumulation of lithologic reservoirs and its mechanism in continental rifted basin[J]. Lithologic Reservoirs, 2011 , 23(6) : 37 -43 . DOI: 10.3969/j.issn.1673-8926.2011.06.007
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