摘要
银根 额济纳旗盆地是陆上油气勘探的一个新区 ,面积大 ,勘探程度低。最新勘探表明 ,银根 额济纳旗盆地是自海西期四大板块碰撞形成大陆后在其板内演化过程中出现的中生代拉裂盆地群。该盆地群由单一的、彼此分隔的北东或北东东向箕状断陷组成。形成于侏罗纪和早白垩世两个时期 ,相应形成了两套含油气系统。从区域地质背景出发 ,分别介绍了侏罗系 ( ?)含油气系统和下白垩统( ?)含油气系统的地质基本要素特征及地质作用过程 ,分析了二者各自的含油气远景 ,指出了盆地的油气勘探方向。
Yingen Ejina Banner Basin is a new area of continental hydrocarbon exploration with a large area and low exploration degree.The newest exploration shows that this basin is a Mesozoic pull apart basin group which appears in the process of the inner plate evolution after the collision of four plates from Hercynian.This basin group consists of single northeast or northeast east halfgraben like depressions which are separated each other and developed in Jurassic and Lower Cretaceous and relatively developed two sets of hydrocarbon systems.Based on the regional geologic background,this paper introduces the basic geologic elements characteristic and geologic action process of Jurassic(?) hydrocarbon system and Lower Cretaceous(?) hydrocarbon system,analyses the hydrocarbon potential of them and proposes the exploration direction of the basin.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2000年第6期4-8,共5页
Petroleum Geology & Oilfield Development in Daqing
关键词
含油气盆地
含油气系统
地质作用过程
油气勘探
Yingen Ejina Banner Basin
hydrocarbon system
geologic basic element
geologic action process
hydrocarbon exploration potential
