辽河东部凹陷茨榆坨潜山源储配置研究

Research on source rock-reservoir collocation of Ciyutuo Buried Hill in Eastern sag of Liaohe Depression

以岩心、钻井、分析化验等资料为基础,对茨榆坨潜山的油源条件、储层特征及源储配置关系等进行深入研究,认为该潜山烃源岩条件优越,油源主要来自东侧牛居—长滩洼陷。有效储层以混合花岗岩、混合片麻岩为主。在中北部潜山带的东侧、中南部潜山带的西侧存在供油窗口,是有效源储配置区。为下步勘探指明方向,促进茨榆坨潜山的整体勘探部署。

Based on core,drilling and analysis assay data,by in-depth study of oil source condition,reservoir characteristics and source rock-reservoir collocation relations,it is considered that the hydrocarbon source condition of Ciyutuo buried hill is superior,and the oil mainly comes from the eastern side of Niuju-Changtan sag.The effective reservoir is mainly composed of migmatitic granite and migmatitic gneiss.There is oil supply window in the east side of north-central buried hill belt and the west side of south- central buried hill belt,where are effective source rock-reservoir collocation area.This study pointed out the exporation direction in the next step,and promoted the overall exploration and deployment of Ciyutuo bureid hill.