台西盆地西部坳陷地质特征及油气前景  

GEOLOGICAL FEATURES AND HYDROCARBON PROSPECT OF THE WESTERN DEPRESSION,TAIXI BASIN

作　　者：傅志飞[1] 姜雄鹰[1] 王海平[1] 王光涛[1] 

机构地区：[1]中海油田服务股份有限公司物探事业部数据处理解释中心,天津塘沽300451

出　　处：《海洋地质前沿》2012年第7期30-35,共6页Marine Geology Frontiers

基　　金：全球油气资源战略选区调查与评价国家专项"东海陆架盆地南部新生界油气资源潜力评价"(2009GYXQ0503)

摘　　要：从邻区盆地演化特征和区域地质条件入手,以盆地西部坳陷地质、地球物理特征和相邻地区对比分析为主要方法,对台西盆地西部坳陷构造演化和地层展布特征进行了探讨。研究表明:西部坳陷构造演化经历了5个阶段;中、新生界共发育3套烃源岩,存在4套储盖组合;构造演化主要控制着烃源岩的发育和储盖组合的形成;西部坳陷由2个东断西超的箕状断陷组成,西部缓坡带是不同类型圈闭的集中发育区,为油气运移、聚集及成藏的有利场所,勘探潜力较大。Based on the study of regional geology and evolutionary history of the adjacent basins, we studied the tectonic evolution and stratigraphic distribution pattern of the Western Depression of the Taixi Basin in thispaper, using the comparative study of geological and geophysical characteristics as a main tool. Results show that the Western Depression has experienced five phases of tectonic evolution, and there are three sets of source rocks and four sets of reservoir-seal systems in the Meso-Cenozoic. Tectonic evolution is the main factor in control over the formation of hydrocarbon source rock and reservoir-seal systems. The Western Depression is tectonically composed of two dustpan-shaped rifts. The western slope of the depression is a favorable area for hydrocarbon migration and accumula- tion and there are different types of traps. Therefore, the exploration potential is high there.

关 键 词：台西盆地 西部坳陷 构造演化 油气勘探 储盖组合 

分 类 号：P618.13[天文地球—矿床学]