新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (5): 397-400.

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粘土矿物研究在塔里木盆地地层对比及储集层研究中的作用

孙玉善, 杨帆   

  1. 塔里木石油勘探开发指挥部勘探研究中心 库尔勒 841000
  • 收稿日期:1997-02-04 出版日期:1998-10-01 发布日期:2020-09-19
  • 作者简介:孙玉善:工程师 石油地质

THE EFFECT OF CLAY MINERAL IN STRATIGRAPHIC CORRELATION AND RESERVOIR STUDY IN TARIM BASIN

Sun Yushan, Yang Fan   

  1. Exploration Research Center, Tarim Petroleum Exploration and Development Headquarters, Korla, Xinjiang 841000
  • Received:1997-02-04 Online:1998-10-01 Published:2020-09-19
  • About author:Sun Yushan, Engineer, Petroleum Geology

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摘要： 以塔里木盆地粘土矿物的分布特征及其组合形式、演化与形成机理等为依据, 探讨了其在地层划分对比中的应用以及对储集层物性的影响。结果表明, 在侏罗系和白垩系两个不同古环境下形成的粘土矿物及其组合特征, 对地层划分对比提供了一定的证据和帮助;泥岩中伊利石/蒙脱石间层中蒙脱石含量在纵向上的变化规律性不明显;对储集层物性影响较大并有利于储集性能保存的是以高岭石为主的粘土矿物组合类型与早期形成的以自生(伊利石/蒙脱石间层矿物)衬垫式和非自生(伊利石)衬垫式产出的粘土矿物。

关键词: 塔里木盆地, 粘土矿物, 地层划分, 地层对比, 成岩演化, 储集层

Abstract: According to distribution characteristics and combination forms, evolution and formation mechanism of clay mineral, the application and the effect of clay mineral in stratigraphic correlation and reservoir physical property were discussed.The results revealed that clay minerals and their combination characteristics formed in Jurassic and Cretaceous offered proper evidence for stratigraphic classification and correlation; there is no obvious vertical variation of content of montmorillonite between illite and montmorillonite layer in mudstone ;clay mineral combination dominated by kaolinite and authigenic(illite and montmorillonite interlayer mineral)and sedimentary(illite)clay minerals have distinct effect on physical property of reservoir, and are favourable for preservation of reservoir property.

Key words: Tarim basin, Clay mineral, Stratigraphic classification, Stratigraphic correlation, Diagenetic evolution, Reservoir