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基于疏水改性纳米碳酸钙的钻井完井液

张虹 蓝强

张虹, 蓝强. 基于疏水改性纳米碳酸钙的钻井完井液[J]. 钻井液与完井液, 2015, 32(2): 43-46. doi: 10.3969/j.issn.1001-5620.2015.02.011
引用本文: 张虹, 蓝强. 基于疏水改性纳米碳酸钙的钻井完井液[J]. 钻井液与完井液, 2015, 32(2): 43-46. doi: 10.3969/j.issn.1001-5620.2015.02.011
ZHANG Hong, LAN Qiang. Study on Hydrophobic Nano Calcium Carbonate Drilling Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(2): 43-46. doi: 10.3969/j.issn.1001-5620.2015.02.011
Citation: ZHANG Hong, LAN Qiang. Study on Hydrophobic Nano Calcium Carbonate Drilling Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(2): 43-46. doi: 10.3969/j.issn.1001-5620.2015.02.011

基于疏水改性纳米碳酸钙的钻井完井液

doi: 10.3969/j.issn.1001-5620.2015.02.011
基金项目: 国家重大专项"低渗油气田高效开发钻井技术"课题四"低渗油气田储层保护技术"(2011ZX05022-004)中的部分内容。
详细信息
    作者简介:

    张虹,工程师,1972年生,毕业于青岛化工学院,主要从事钻井液化学理论及新技术推广方面的工作。地址:山东省东营市胜利石油工程有限公司钻井工艺研究院;邮政编码257017;电话(0546)8785240;E-mail:free_317@163.com。

  • 中图分类号: TE254.3

Study on Hydrophobic Nano Calcium Carbonate Drilling Fluid

  • 摘要: 基于前期提出的自解堵屏蔽暂堵理论,研制出了性能优良的疏水改性纳米碳酸钙,并在此基础上形成了疏水暂堵钻井液。室内评价结果表明,在屏蔽暂堵钻井液中加入1.5%疏水碳酸钙后,滤失量由2.6降为1.2 mL,泥饼厚度由0.4变为0.28 mm,证明疏水暂堵钻井液能够快速形成外泥饼,降低瞬时滤失量。该钻井液在温度低于140℃时滤失性能比较稳定;抗CaCl2能力为2.5%,抗一价盐浓度为9.0%,抗黏土含量为14.0%;抑制性能好,能在易坍塌地层使用;润滑效果好,极压膜强度超过190 MPa;形成的泥饼在长期油相浸泡下会产生大量裂纹,后期泥饼自行剥落,从而达到自解堵目的,初始渗透率为50×10-3~1000×10-3 μm2的岩心,其渗透率恢复值均大于90%;体系的毒性都很低,均达到了排放标准。

     

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出版历程
  • 收稿日期:  2014-12-23
  • 刊出日期:  2015-03-31

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