摘要
流体动力系统是控制油气藏形成和分布的基本单元，在含油气盆地分析中，划分流体动力系统，确定流体动力系统的类型，进而按类型研究不同系统的成藏作用和油气藏分布规律，是指导油气勘探的一条有效途径。而在盆地内进行纵、横向上流体动力系统的划分，是一个基于构造、地层、温度、流体动力和流体化学等方面以及温度－压力关系综合分析的一个十分复杂的资料整理、信息加工和逻辑推理过程，其目的主要是在纵向上把控制油气成藏的不同的流体动力系统分开，在横向上确定重力驱动流（来自地表的淡水）侵入的范围。本文在近几年研究探索和实践的基础上，总结和阐述了纵向上流体动力系统划分的原理和横向上侧向重力驱动流侵入范围的确定方法。
A fluid dynam icsystem isabasicunitwhich controlsoiland gaspools'formation and distribution.In petrolif- erous basins analysis, itisan efficientway to divide thebasin understudy into severalfluid dynam icsystem , and assess the oiland gasform ation conditionsforeach system according to itstype. Division ofa basin into severalfluid dynam ic system s is a com plex procedure w hich needsa com prehensive study and inference on tectonics, stratigraphy, tem pera- ture, fluid dynam icsand fluid geochem istry, and therelation between tem peratureand pressure. Itsm ain objectivesare the verticaldivision ofseveralsystem s and determ ination ofinfluenced area by lateralgravity-driven fluid flow . In this article, the principes ofsystem s division in verticaldirection and the procedure fordeterm ination ofinfluenced area by lateralgravitydriven flow are sum m arized.
出处
《水文地质工程地质》
CAS
CSCD
2000年第2期54-55,共2页
Hydrogeology & Engineering Geology
