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疏水抑制水基钻井液体系研究及其在页岩气井的应用

景岷嘉 陶怀志 袁志平

景岷嘉, 陶怀志, 袁志平. 疏水抑制水基钻井液体系研究及其在页岩气井的应用[J]. 钻井液与完井液, 2017, 34(1): 28-32. doi: 10.3969/j.issn.1001-5620.2017.01.005
引用本文: 景岷嘉, 陶怀志, 袁志平. 疏水抑制水基钻井液体系研究及其在页岩气井的应用[J]. 钻井液与完井液, 2017, 34(1): 28-32. doi: 10.3969/j.issn.1001-5620.2017.01.005
JING Minjia, TAO Huaizhi, YUAN Zhiping. Study of Hydrophobic Inhibitive Water Base Drilling Fluid System and Application in Shale Gas Well[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(1): 28-32. doi: 10.3969/j.issn.1001-5620.2017.01.005
Citation: JING Minjia, TAO Huaizhi, YUAN Zhiping. Study of Hydrophobic Inhibitive Water Base Drilling Fluid System and Application in Shale Gas Well[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(1): 28-32. doi: 10.3969/j.issn.1001-5620.2017.01.005

疏水抑制水基钻井液体系研究及其在页岩气井的应用

doi: 10.3969/j.issn.1001-5620.2017.01.005
基金项目: 

国家科技重大专项课题“页岩气水平井水基钻井液研究与试验”(2016ZX05022-001-002)。

详细信息
    作者简介:

    景岷嘉,1982年生,工程师,硕士,毕业于西南石油大学应用化学,现在从事钻井液技术研究工作。电话(0838)5151118;E-mail:jingmj_ccde@cnpc.com.cn。

  • 中图分类号: TE257.6

Study of Hydrophobic Inhibitive Water Base Drilling Fluid System and Application in Shale Gas Well

  • 摘要: 针对龙马溪组页岩气水平井钻井井壁失稳问题,研制出一种疏水抑制剂CQ-SIA和一种液体润滑剂CQ-LSA,并形成一套疏水抑制水基钻井液体系。CQ-SIA具有双亲特性,能使亲水的岩石表面发生润湿反转,在岩石表面形成一层疏水膜,具有强化抑制与包被的作用,实验测得岩屑在1% CQ-SIA中的滚动回收率为83.72%,明显高于KPAM、AP-1以及KCl。CQ-LSA具有特定的基团与结构,能在亲水的钻具、泥饼和地层岩石表面形成亲油膜,降低摩阻,实验测得加有1% CQ-LSA的5%膨润土浆黏附系数为0.050 7,低于加有RH-220和BARALUBE的膨润土浆。该疏水抑制水基钻井液的抑制性和润滑性能与油基钻井液相当,具有良好的流变性能和抗污染性能,加有1%~3%防塌封堵剂、1%~2%聚合醇和0.8%~1.6%纳米封堵剂,封堵能力强。该体系在长宁H25-8井进行了首次现场试验,在1 500 m水平井段的钻井过程中,该体系各项性能稳定,配制维护工艺简单,井下未出现任何复杂,起下钻、电测、下套管、固井作业顺利,表明该体系能满足长宁页岩气水平井的钻井需要。

     

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出版历程
  • 收稿日期:  2016-10-25
  • 刊出日期:  2017-01-31

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