摘要
通过对中国东部地区的大民屯凹陷、泌阳凹陷、阿尔凹陷、吉尔嘎朗图凹陷及贝尔凹陷等断陷盆地中的"小而肥"凹陷剖析,探讨"小而肥"凹陷的形成机理、成藏条件及有利勘探方向,从而发现更多的"小而肥"凹陷。研究认为:深洼槽和巨厚的优质烃源岩是形成"小而肥"凹陷的2个必要条件;利用遥感、重、磁、电的资料寻找地形上垂直伸展运动方向的洼地,再利用二维地震资料确定凹陷结构,是发现"小而肥"凹陷的有效途径。
Through the analyses of the small but abundant oil sags in the following fault basins： Daimintun, Biy- ang, Aer, Jiergalangtu, Beier and so on in the eastern China, the forming mechanism, conditions of the reservoir accumulation and favorable exploration orientation are explored to find out more and more this kind of oil sag. The studies show that deep lows and huge thick fine hydrocarbon source rocks are the two necessary conditions the above sags; with the help of remote sensing, gravity, magnetic and electrical data, the lows are searched in the direction perpendicular to the tensional movement, and moreover by means of 2D seismic data, the structures of the sag are determined. All the methods stated above are the effective ways to fine this kind of the sag.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2014年第1期16-20,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
国土资源部油气专项"二连盆地上古生界石油地质特征及战略选区"(2009GYXQ12-03)资助
关键词
中国东部地区
小而肥凹陷
形成机理
成藏条件
勘探方向
有效途径
the eastern China
small but abundant oil sag
forming mechanism
reservoir accumulating condition
exploration orientation/direction
effective way
