【摘要】 海拉尔盆地是松辽外围盆地中最大的一个含油气盆地,贝尔凹陷是海拉尔盆地中一个次级构造单元。本文主要研究了贝尔凹陷下白垩统铜钵庙组、南屯组、大磨拐合组和伊敏组沉积地层,并结合地震资料及各项分析鉴定资料,确定贝尔凹陷下白垩统三级层序地层特征及地震反射特征,进而为该区有利储集层的寻找提供一定理论基础。更多还原

【Abstract】 Hailar Basin is the biggest oil and gas basin on the periphery of Songliao basin.Beier Depression is one of structural unites comprising the Hailar Basin.The article mainly deals with sedimentary features of Lower Cretaceous of the Beier Depression.Lower Cretaceous include Tongbomiao Formation,Nantun Formation,Damoguaihe Formation and Yimin Formation,combined with analysis of seismic data,to determine 3rd order sequence’s characteristics and Seismic reflection characteristics,and also provide a theoretical basis for further research of favorable reservoir in this area.更多还原