石油与天然气地质 ›› 1999, Vol. 20 ›› Issue (1): 11-14,29.doi: 10.11743/ogg19990103

• 论文 • 上一篇    下一篇

四川盆地下二叠统气藏储层模式的再认识

陆正元, 陈立官, 王洪辉   

  1. 成都理工学院油气藏地质及开发工程国家重点实验室, 四川成都 610059
  • 收稿日期:1998-10-25 出版日期:1999-03-25 发布日期:2012-01-18
  • 基金项目:

    油气藏地质及开发工程国家重点实验室资助(9603)

REVIEWINGTHE RESERVOIR MODEL OF LOWER PERMIANGAS POOLS IN SICHUAN BASIN

Lu Zhengyuan, Chen Liguan, Wang Honghui   

  1. State Lab. of Oil & Gas Reservoir Geology and Exploration, Chengdu College of Technology, Chengdu, Sichuan
  • Received:1998-10-25 Online:1999-03-25 Published:2012-01-18

PDF (PC)

980

被引次数

47

摘要：

四川盆地下二叠统灰岩储层中,较大储量缝洞系统以东吴期暴露溶蚀形成的管道状溶洞系统为主要储集空间。第三纪喜山运动产生构造裂缝,使致密灰岩具有较高渗滤能力,但在深埋条件下不具备产生较强岩溶作用形成大型溶洞的条件。缝洞系统是在东吴期古溶洞系统基础上,经埋藏后充填和溶解,最后由喜山期构造裂缝改造而成。储层地质模式可描述为东吴期管道状溶洞系统与喜山期构造裂缝网络的组合。在东吴期古岩溶发育区,单斜或向斜区同样存在有待于进一步钻探的缝洞系统。

关键词: 缝洞储层, 模式, 古岩溶, 碳酸盐岩, 四川盆地

Abstract:

The tubular cave system resulted from erosion in Dongwu stage are the main reservoir space of Lower Permian limestone reservoirs in Sichuan Basin.The cave system were burried first,then filled up and eroded and finally reformed by Himalayan tectonic fractures.The geological model of the reservoirs could be described as a combination of tubular caves system of Dongwu stage and Himalaya tectonic fracture network.It is proposed that the place where Dongwua stage cave system developed and the place where unicline and syncling developed should be taken as furthur exploration areas.

Key words: fissure-cave reservoir, model, paleokarst, Carbonate rock, Sichuan Basin