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倪晓骁, 蒋官澄, 王建华, 闫丽丽, 刘人铜. 油基钻井液用憎液性纳米封堵剂[J]. 钻井液与完井液, 2021, 38(3): 298-304. doi: 10.3969/j.issn.1001-5620.2021.03.006
引用本文: 倪晓骁, 蒋官澄, 王建华, 闫丽丽, 刘人铜. 油基钻井液用憎液性纳米封堵剂[J]. 钻井液与完井液, 2021, 38(3): 298-304. doi: 10.3969/j.issn.1001-5620.2021.03.006
NI Xiaoxiao, JIANG Guancheng, WANG Jianhua, YAN Lili, LIU Rentong. Study on a Lyophobic Nanophase Plugging Agent for Oil Base Muds[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(3): 298-304. doi: 10.3969/j.issn.1001-5620.2021.03.006
Citation: NI Xiaoxiao, JIANG Guancheng, WANG Jianhua, YAN Lili, LIU Rentong. Study on a Lyophobic Nanophase Plugging Agent for Oil Base Muds[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(3): 298-304. doi: 10.3969/j.issn.1001-5620.2021.03.006

油基钻井液用憎液性纳米封堵剂

doi: 10.3969/j.issn.1001-5620.2021.03.006
详细信息
    作者简介:
  • 中图分类号: TE254.4

Study on a Lyophobic Nanophase Plugging Agent for Oil Base Muds

  • 摘要: 为了解决油基钻井液在页岩气藏钻遇井壁失稳的难题,以纳米材料物理封堵和改变岩石表面润湿性为研究思路,通过溶胶-凝胶法对纳米二氧化硅进行表面改性,合成具有憎液性能的纳米封堵剂SNP-1。利用核磁共振进行分子结构表征,同时结合扫描电镜等微观实验和自然渗吸等宏观实验对其性能进行评价。结果表明,合成的纳米封堵剂SNP-1具有预先设计的基团,其能够使页岩表面液相接触角大于150°,反转毛细管附加压力为阻止液相进入孔喉的阻力,进一步降低岩心自然渗吸油含量;150℃老化后,使得油基钻井液的高温高压滤失量低至2.4 mL,破乳电压达800 V以上,能有效阻止页岩岩心的压力传递。

     

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  • 收稿日期:  2021-03-15

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