白音查干凹陷构造沉降充填演化与油气关系  

Relationship between structural subsidence filling evolution and hydrocarbon in Baiyinchagan

作　　者：管穆兰[1] 库国正[1] 尹哲[1] 杨万虎[2] 

机构地区：[1]中原油田分公司勘探开发科学研究院,河南濮阳457001 [2]中原石油勘探局测井公司,河南濮阳457001

出　　处：《大庆石油地质与开发》2005年第3期7-10,i001,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石化集团公司"十五"重大科技攻关项目(P00015)部分研究成果。

摘　　要：断陷盆地构造运动学是构造演化研究的重要组成部分,通过盆地构造运动学的研究,定量恢复盆地形成演化的动态过程,对认识盆地的圈闭发育和构造对油气富集的控制作用具有重要意义。白音查干凹陷位于二连盆地西缘,是一北断南超的断陷。经过多年的油气勘探与研究,取得了大量的成果与认识,勘探取得了一定的进展,但近年勘探效果不太理想,油气成藏的控制因素和富集规律不清是其重要的因素。通过平衡剖面恢复等方法,对白音查干凹陷在各个沉积时期的水平伸展作用、构造沉降作用及其成因机制进行了研究,进而研究了凹陷的沉积充填演化和烃源岩的发育特征,探讨并明确了它们与油气运移、成藏、富集的关系,指出了今后的勘探方向。Tectonic movement of rifted basin is an important part of tectonic evolution study. Study on the tectonic movement and quantitative restore of the dynamic process of the evolution of basin formation is significant in recognizing the controlling effect of trap development and structure of the basin on oil hydrocarbon accumulation. Baiyinchagan Sag locates in the north side of Erlian Basin, being a rift with fault in the north and overburden in the south. After many years of exploration and study, a large amount of recognition is obtained with a good exploration achievement. In recent years, the exploration result is not satisfied. The main reason is that the controlling factors and accumulation rule of hydrocarbon reservoir formation are not understood. This paper uses balance profile restore method to study the structural subsidence of horizontal extension in different sedimentary period and its genesis mechanism of Baiyinchagan Sag, discusses the sedimentary filling evolution and development characteristic, and determines their relation to hydrocarbon migration, reservoir formation and accumulation.

关 键 词：白音查干 平衡剖面 构造 伸展 沉降 充填演化 油气 

分 类 号：TE121.1[石油与天然气工程—油气勘探]