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十屋断陷位于松辽盆地东南隆起区南部 ,区内断坳叠置 ,共经历了五次构造运动。其油气成藏规律有别于松辽盆地中央坳陷区 ,油气源岩为沙河子组、营城组及登娄库组。在部分断层不能成为油气垂向油气通道的条件下 ,油气在烃源层内以横向运移为主 ,形成原生油气藏。经后期强烈改造 ,部分原生油气藏遭到破坏 ,形成次生油气藏。综合研究认为 ,勘探靶区的选择应以近源的含油气圈闭为主
The Shiwu Fault Depression is located in the south of the southeast uplift area of the Songliao Basin. It is underlain by overpressure and has experienced five tectonic movements. The hydrocarbon accumulation laws are different from the central depression in the Songliao Basin. The source rocks are Shahezi Formation, Yingcheng Formation and Denglouku Formation. Under the condition that some faults can not become vertical oil and gas channels, oil and gas migrate laterally within the hydrocarbon source to form primary reservoirs. After a strong transformation in the later period, some of the original oil and gas reservoirs were damaged and secondary oil and gas reservoirs formed. According to the comprehensive study, the selection of exploration targets should be dominated by oil and gas traps in near source