摘要
地层压力对油气勘探与开发具有重要影响。以前人的研究成果为基础,通过对地层压力影响因素的综合分析,指出垂向载荷、生烃作用、构造应力是地层压力的主要影响因素,也是超压地层形成的主要机制。以渤海湾盆地车西洼陷为例,指出欠压实与生烃作用是导致车西中央洼陷带和大王北西次洼深陷区异常高压的主要原因。
Formation pressure has an important influence on oil and gas exploration and exploitation.Based on a comprehensive analysis of impact factors of formation pressure,we point out that vertical loads,hydrocarbon generation,tectonic stress are the main factors affecting the formation pressure,and also the major mechanism of overpressure.Taking Chexi Sag of Bohaiwan Basin as example,it shows undercompaction and hydrocarbon generation are the main reasons which led to abnormal high pressure in the deep zone of central sag and Dawangbei Sag.
出处
《海洋地质动态》
北大核心
2010年第6期31-35,共5页
Marine Geology Letters
基金
国家科技重大专项(2008ZX05025-005-02)
国家重点基础研究发展计划(973)(2009CB219401)
关键词
地层压力
影响因素
垂向载荷
生烃作用
构造应力
formation pressure
impact factor
vertical loads
hydrocarbon generation
tectonic stress
