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四川盆地涪陵地区龙马溪组页岩微观孔隙结构定性定量研究

杨文新 李继庆 赵江艳 黄志红

杨文新, 李继庆, 赵江艳, 黄志红. 四川盆地涪陵地区龙马溪组页岩微观孔隙结构定性定量研究[J]. 石油实验地质, 2018, 40(1): 97-102. doi: 10.11781/sysydz201801097
引用本文: 杨文新, 李继庆, 赵江艳, 黄志红. 四川盆地涪陵地区龙马溪组页岩微观孔隙结构定性定量研究[J]. 石油实验地质, 2018, 40(1): 97-102. doi: 10.11781/sysydz201801097
YANG Wenxin, LI Jiqing, ZHAO Jiangyan, HUANG Zhihong. Qualitative and quantitative study of micro-pore structures of Longmaxi Formation shale in Fuling area, Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(1): 97-102. doi: 10.11781/sysydz201801097
Citation: YANG Wenxin, LI Jiqing, ZHAO Jiangyan, HUANG Zhihong. Qualitative and quantitative study of micro-pore structures of Longmaxi Formation shale in Fuling area, Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(1): 97-102. doi: 10.11781/sysydz201801097

四川盆地涪陵地区龙马溪组页岩微观孔隙结构定性定量研究

doi: 10.11781/sysydz201801097
基金项目: 国家科技重大专项(2016ZX05060)和中国石化科技项目(P17014-1)资助。
详细信息
    作者简介:

    杨文新(1967-),男,高级工程师,从事油气勘探开发研究。E-mail:ywx2369@sina.com。

  • 中图分类号: TE132.2

Qualitative and quantitative study of micro-pore structures of Longmaxi Formation shale in Fuling area, Sichuan Basin

  • 摘要: 四川盆地涪陵地区龙马溪组页岩的孔隙结构复杂,常规单一测试技术已不能准确表征页岩的微观孔隙。运用氩离子抛光扫描电镜、压汞-吸附联测、核磁共振分析等多种方法,研究了涪陵地区龙马溪组页岩多尺度微观孔隙结构。结果表明,焦石坝页岩以灰黑色-黑色泥质粉砂岩及粉砂质泥岩为主,页岩发育有机质孔隙、无机孔隙和微裂缝3种孔隙类型;页岩孔隙大小分布是多尺度的,主要是微孔和中孔,孔隙直径小于20 nm的占总孔隙80%以上。核磁共振分析定量研究表明,龙马溪组页岩主力层孔隙半径明显大于非主力层,纵向上随井深增加,孔隙分布峰值向右偏移,页岩孔隙半径增大;平面上,主力层页岩孔隙直径峰值大于2 nm、孔隙度大于3%、含水饱和度低于40%的区块,储层保存条件好。

     

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出版历程
  • 收稿日期:  2017-10-09
  • 修回日期:  2017-12-05
  • 刊出日期:  2018-01-28

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