石油与天然气地质 ›› 1980, Vol. 1 ›› Issue (2): 153-158.doi: 10.11743/ogg19800208

• 论文 • 上一篇    下一篇

西藏伦坡拉盆地第三系及其含油性

徐正余   

  1. 西藏第四地质大队
  • 出版日期:1980-09-25 发布日期:2012-01-16

THE TERTIARY AND ITS PETROLEUM POTENTIAL IN THE LUNPOLA BASIN,TIBET

Xu Zhengyu   

  1. The 4th Geological Brigade of Tibet
  • Online:1980-09-25 Published:2012-01-16

PDF (PC)

835

被引次数

16

摘要：

伦坡拉盆地位于藏南褶皱系昂拉仁错—奇林湖复向斜带北部边界断裂的南侧。它是一个东西长约200公里,南北宽约20公里,面积约4000平方公里的陆相含油盆地。盆地的石油普查工作开始于1956年。从1967年起,地质部第四普查勘探大队在此开展了大规模的多工种的石油普查工作,现将已经取得的一些资料和本人的初步看法提出来，与同行们讨论。

Abstract:

The Tertiary in the Lunpola Basin is a sequence of clastics and clay rocksof near-shore and deep lake facies,with a total thickness of about 4000m.It can be divided into the Niubao and Dingqing formations.The study of os-tracods shows the former is of Eocene—Oligocene age,while the lowermiddle and upper members of the latter belong to the Miocene and Pliocenerespectively.There are good oil source,reservoir and cap rocks as well astheir appropriate combination in the basin.The known oil-bearing beds aremany,thin,dispersed and miscellaneous in character.The physical proper-ties indicate that the crude oil are relatively low in maturity and have beensubjected to weathering to a certain extent.Basing on the regional geological and structural conditions of the basin,the author delineates 4 areas of different oil prospects.