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页岩气藏地层井壁水化失稳机理与抑制方法

刘敬平 孙金声

刘敬平, 孙金声. 页岩气藏地层井壁水化失稳机理与抑制方法[J]. 钻井液与完井液, 2016, 33(3): 25-29. doi: 10.3969/j.issn.1001-5620.2016.03.005
引用本文: 刘敬平, 孙金声. 页岩气藏地层井壁水化失稳机理与抑制方法[J]. 钻井液与完井液, 2016, 33(3): 25-29. doi: 10.3969/j.issn.1001-5620.2016.03.005
LIU Jingping, SUN Jinsheng. Borehole Wall Collapse and Control in Shale Gas Well Drilling[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(3): 25-29. doi: 10.3969/j.issn.1001-5620.2016.03.005
Citation: LIU Jingping, SUN Jinsheng. Borehole Wall Collapse and Control in Shale Gas Well Drilling[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(3): 25-29. doi: 10.3969/j.issn.1001-5620.2016.03.005

页岩气藏地层井壁水化失稳机理与抑制方法

doi: 10.3969/j.issn.1001-5620.2016.03.005
基金项目: 中国石油集团重大专项“浙江油田昭通示范区页岩气钻采工程技术现场试验”(2014F470205)资助。
详细信息
    作者简介:

    刘敬平,在读博士研究生,1985年生,现在从事钻井液技术研究工作。电话15600563498;E-mail:liujingping20@126.com。

    通讯作者:

    孙金声,E-mail:sunjinsheng@petrochina.com.cn。

  • 中图分类号: TE283

Borehole Wall Collapse and Control in Shale Gas Well Drilling

More Information
    Corresponding author: 孙金声,E-mail:sunjinsheng@petrochina.com.cn。
  • 摘要: 页岩气井水平井段井壁失稳是目前中国页岩气资源勘探开发的关键技术难题。通过云南昭通108区块龙马溪组页岩的X-射线衍射分析、扫描电镜(SEM)观察、力学特性分析、润湿性、膨胀率及回收率等实验,研究了其矿物组成、微观组构特征、表面性能、膨胀和分散特性,揭示了云南昭通108区块龙马溪组页岩地层井壁水化失稳机理。该地层黏土矿物以伊利石为主要组分,不含蒙脱石及伊蒙混层,表面水化是引起页岩地层井壁失稳的主要原因。基于热力学第二定律,利用降低页岩表面自由能以抑制页岩表面水化的原理,建立了通过多碳醇吸附作用改变页岩润湿性,有效降低其表面自由能、抑制表面水化,进而显著抑制页岩水化膨胀和分散的稳定井壁方法。

     

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出版历程
  • 收稿日期:  2016-03-01
  • 刊出日期:  2016-05-31

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