摘要
油气成藏动力学系统是近几年来油气成藏机理研究中的一大热点。笔者在对成藏动力学系统进行回顾的基础之上,从成藏动力学系统的划分及特征、形成条件、形成演化、成藏期次等方面对车镇凹陷成藏动力学系统进行广泛而深入的研究。将车镇凹陷划分为3个成藏动力学系统:上部它源开放型成藏动力学系统;中部自源封闭型成藏动力学系统;下部它源开放型成藏动力学系统。其联络体系有断层、不整合面和连通砂体。通过对成藏的静态要素(烃源岩、储层、盖层)描述及动态过程(烃类生成、运移、聚集和保存),确定新近纪馆陶末—明华镇沉积时为成藏的关键时刻。
Recently the dynamics system for pool-foming had become the central issue in the study of reservoir forming and was paid great attention. Based on the review, the author made an intensive study on the dynamic systems for pool-forming in Chezhen Sag. Chezhen Sag can be divided into three kinds of dynamic sub-systems for pool-forming and three sorts of link systems.The dynamic sub-systems consist of heterogeneous & open type on the top, the self-sourced & closed type in the middle and the heterogeneous & open type at the bottom. On the ground of describing the static elements of petroleum system (source rock, reservoir, seal and overburden) and the analyzing the dynamic process (trap formation and generation, migration, accumulation and preservation of hydrocarbon),combining oil-source correlation and oil-gas pool-forming period, the late Guantao-Minghuazhen stag is the key moment of petroleum system.
出处
《西北地质》
CAS
CSCD
2004年第4期22-26,共5页
Northwestern Geology
关键词
车镇凹陷
成藏动力学
形成演化
油气成藏机理
新近纪
不整合面
盖层
成藏期次
砂体
储层
Chezhen Sag
geologic elements of hydrocarbon accumulation
dynamic systems for pool formation
key controlling factor of petroleum accumulation
