断层封闭性在油气系统边界划分中的应用

断层开启或封闭的定性和定量研究及油气系统(petroleum system)分析是当今油气勘探领域中的两大热点研究课题.在油气系统研究中,油气系统的划分是关键,它对客观评价油气系统的资源前景、确定有利的勘探区带和圈闭具有十分重要的意义.由于断层的封闭或开启,可使油气系统的地理分布范围缩小或扩大,对其油气勘探远景的评价也就发生相应的变化.文中强调了油气系统的层次性和系统边界划分的重要性,对断层的封闭性研究现状进行了评述,并在塔里木盆地巴楚隆起油气系统的分析中进行了应用. 

APPLICATION OF FAULT SEALING TO THE BOUNDARY DIVISION OF PETROLEUM SYSTEMS

The qualitative and quantitative study of fault opening or sealing and the analysis of petroleum systems are two fashionable research subjects in the domain of petroleum exploration at present. In the study of petroleum systems, the division of petroleum systems is critcal. It has very important significance to the objective evaluation of resource potential for petroleum systems and to the determination of favorable zones and traps for exploration. With the sealing or opening of faults, the geographic distributive ranges of petroleum systems decrease or increase,and the evaluation on the potential of petroleum exploration changes correspondingly. It this paper, the present situation of fault sealing research is reviewed, and it is applied to the analysis of petroleum systems in the Bachu uplift of the Tarim basin.