【摘要】 对嘉荫断陷淘淇河组、永安村组、太平林场组、渔亮子组进行露头剖面、单井相分析、粒度分析,结合地震剖面解释及取样测试分析等方面的详细研究,查明断陷主要有河流相、扇三角洲相、三角洲相与湖泊相等沉积相类型。扇三角洲相主要发育于淘淇河组,三角洲主要发育于永安村组,湖泊相主要发育于太平林场组,河流相主要发育于渔亮子组;整体上构成了早期以两侧物源供给为主、后期以西侧物源供给为主、沉积中心逐渐向断陷中心退缩迁移的半深湖-扇三角洲与半深湖-三角洲沉积体系;断陷太平林场组具有中等—好的烃源岩,处于低熟至成熟阶段,具有一定的油气勘探前景。更多还原

【Abstract】 According to the geological survey,single well facies analysis and grain size analysis of Taoqihe Formation,Yongancun Formation,Taipinglinchang Formation and Yuliangzi Formation in Jiayin Depression,combining with seismic section interpretation and sampling test analysis,it is held that fluvial facies,fan delta facies,delta facies and lacustrine facies are developed in Jiayin Depression. The fan delta facies developed mainly in Taoqihe Formation,the delta facies developed mainly in Yongancun Formation,the lacustrine facies developed mainly in Taipinglinchang Formation,and the fluvial facies developed mainly in Yuliangzi Formation. On the whole,Jiayin Depression is a semi-deep lake-fan delta and semi-deep lake-delta sedimentary system,its source supply comes mainly from both sides in the early stage,and mainly from the west in the later stage,and its sedimentary center gradually retreats to the fault depression center. Taipinglinchang Formation is middle-good source rock of low maturity,and it has certain prospects for oil and gas exploration.更多还原