新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (4): 388-389.

• 油气勘探 • 上一篇    下一篇

准噶尔盆地白垩系低电阻油层成因

张丽霞1, 朱国华2, 李民1   

  1. 1.中国石油新疆油田分公司准东采油厂研究所, 新疆阜康831511;
    2.中国石油勘探开发研究院杭州所,浙江杭州310023
  • 收稿日期:2003-09-11 修回日期:2003-11-11 发布日期:2021-01-06
  • 作者简介:张丽霞(1966-), 女,河北唐山人、工程师,主安从事石油地质岩石薄片鉴定工作,联系电话:0994-3831125

Origin of Cretaceous Low-Resistivity Reservoirs in Junggar Basin

ZHANG Li-xia1, ZHU Guo-hna2, LI Min1   

  1. 1. Institute of Jundong Prodaction Plant, Xinjiang Oilfield Company, PetroChina, Fnkang, Xinjiang 831511, China;
    2. Hangzhou Institate of Geology, Research Institute of Petroleum Exploration and Development, PetroChina, Hangzhou, Zhejiang 310023. China
  • Received:2003-09-11 Revised:2003-11-11 Published:2021-01-06

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摘要： 准噶尔盆地白垩 系吐谷鲁群油层、油水同层和水层的电阻率明显低于侏罗系头屯河组、西山窑组相应储集层的电阻率。白垩系吐谷鲁群油层的含水率高于侏罗系。白垩系中发育的含水粘土膜极大地扩大了储集层中导电网络的截面积,是导致储集层低电阻的主要原因,粘土矿物的差异对电阻率也有一定影响。

关键词: 准噶尔盆地, 电阻率, 含水率, 粘土矿物

Abstract: The oil zone, oil-water transition zone and aqueous layer of Cretaceous Tugulu group in Junggar basin occur obvious resistivity lower than that found in reservoirs of Jurassic Toutunhe formation and Xishanyao formation. The study shows the reason or origin is due to the fact that the water cul in Tugulu reservoirs is higher than that of Jurassic; water bearing clay film developed in Cretaceous could greatly enlarge the cro8s-sectional area of electric conductive network, so the clay film is mainly responsible for existing low resistivity of Cretaceous reservoirs. In addi-tion, the difference of clay minerals has effect on the low resistivity reservoirs.

Key words: Junggar basin, resistivity, water cut, clay mineral

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