石油与天然气地质 ›› 1986, Vol. 7 ›› Issue (3): 281-287.doi: 10.11743/ogg19860314

• 论文 • 上一篇    下一篇

克拉美丽地区二叠纪沉积建造及含油气分析

秦苏保   

  1. 中国科学院长沙大地构造研究所
  • 收稿日期:1985-07-10 出版日期:1986-09-25 发布日期:2012-01-16

ANALYSIS OF PERMIAN SEDIMENTARY FORMATION AND THEIR OIL AND GAS POTENTIAL IN KELAMEILI REGION

Qin Subao   

  1. Changsha Institute of Geotectonics, Academia Sinica
  • Received:1985-07-10 Online:1986-09-25 Published:2012-01-16

摘要:

克拉美丽地区二叠系具生储盖组合。五彩湾坳陷东北缘,大井坳陷北缘、西缘,帐北隆起东西侧及其隆起带的局部坳陷,可能形成以砂体为主的岩性油藏。克拉美丽山前断裂下盘,沙丘河断裂北段小断块,可能形成断层遮挡油藏。

Abstract:

It is shown clearly by lithologic nature,clay minerals and the characters of organic geochemistry that the basement of Kelameili region was full of risesand falls during the Permian,thus limited its deposition.During the Late Per-mian,the depressions subsided and extended in the early stage;it deepened and linked up in the middle stage,and extensively accepted sediments;but in thelate stage,the basement uplifted again,leading to sedimentary absence.The development history of the region provided favourable conditons for the forma-tion of source-reservoir-cover rock assemblage.Based on the source-reservoir-cover assemblage and trap conditions,it is suggested that the northeast margin of Wuchaiwan Depression,the north andwest margins of Dajing Depression,the east and west sides of the Zhangbei Uplift may exist lithologic oil pools which is composed mainly of sandbodies.The downthrow block of Kelameili piedmont fault,the nothern small block of the Shaquhe fault may exist oil pools of block-faulted type.