Systems and Models of Natural Gas Migration and Accumul ation in Tarim Basim
-
摘要: 对塔里木盆地东部地层压力结构和天然气性质差异的研究表明，塔里木盆地东部具有多个独立的天然气运聚系统。这些运聚系统具有流体封存箱的特征。天然气只能在运聚系统内部进行短距离的运移，不能进行大规模侧向运移。因此天然气藏的形成具有近源的特点。由于不同运聚系统特征的差异，塔里木盆地大致有三种天然气运聚模式。Abstract: Bsaed on the studies of structures of formation pressure and the characteristics of natural gas in TarimBasin,the paperl shows that there are several independent natural gas migration and accumulation systems inthe eastern part of Tarim Basin. There are no hydrodynamic connections between the systems and the charac-teristics of natural gas is different in different systems. The migration of natural gas was restricted within thelimit of individual system,and the lateral migration across the systems was very difficult. As a result,the nat-ural gas generated in a system could only accumulate within the same system,and this is very important to theoccurrence and evaluation of natural gas in the basin. According to different geological conditions in differentsystems , three kinds of migration and accumulation models have been developped.
-
Key words:
- natural gas /
- formation pressure /
- oil and gas migration /
- Tarim Basin
-
[1] 1 Pratsch J C.Gasfield,NW German Basin:Secondary gas migrationas a major geological parameter, Journal of Petroleum Geology,1983,5(3):229-244
2 Hunt J M. Generation and migration of petroleum from abnormallypressured fluid compartment. AAPG,1990,74(1):1-12
3 冯棋，周东延，康利平等.塔北隆起新和一轮台断裂带断裂构造特征及其控油性.见童晓光，梁狄刚主编.塔里木盆地油气勘探论文集.乌鲁木齐:新疆科技卫生出版社，1992. 267^273 -
点击查看大图
计量
- 文章访问数: 552
- HTML全文浏览量: 52
- PDF下载量: 440
- 被引次数: 0
下载:
