博格达山构造演化对吐哈盆地台北凹陷西缘油气成藏的控制作用

来源期刊:中南大学学报(自然科学版)2014年第11期

论文作者:肖冬生 陈旋 康积伦 陈永慧 刘文辉 朱景芬 魏成

文章页码:3877 - 3886

关键词:吐哈盆地;台北凹陷;博格达山;油气成藏;控制作用

Key words:Turpan—Hami Basin; Taibei Sag; Bogda Mountain; petroleum accumulation; controlling functions

摘    要:博格达山的构造演化伴随着吐哈盆地成盆、充填的整个过程,盆内构造格局、储层展布、油气运移等与博格达山演化过程密不可分。通过研究台北凹陷西缘发现:燕山期—喜山期博格达山隆升过程直接影响着侏罗 系—第三系沉积体系类型及展布特征,进而控制着生、储、盖等成藏要素;中晚燕山期及喜山期隆升形成的逆冲褶皱构造、区域断裂及不整合面控制着圈、运、保等成藏要素,进而控制着北凹陷西缘油气成藏整个过程。中晚燕山期—喜山期六排逆冲褶皱带南、北拓展及各褶皱带间叠合连片为研究区下步有利勘探方向。

Abstract: The structural pattern, reservoir distribution and hydrocarbon migration are closely related to the tectonic evolution of Bogeda Mountain accompanied by the formation and filling of Turpan—Hami Basin. The results show that the uplift process of Bogeda Mountain in Yanshan and Himalayan movement directly affects the sedimentary system types, distribution of Jurassic—Tertiary, further to source, reservoir and caprock. Thrust-fold structures, regional faults and unconformity result from the uplift in Yanshan and Himalayan movement control traps, migration and storage accumulation conditions. The uplift controls the entire process of petroleum accumulation. The south—north expansion of six thrust-fold belts and the joint of several belts become the next favorable exploration directions.

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