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内核纳米乳液用于塔西南地区钻井液的优化

盛勇 叶艳 朱金智 宋瀚轩 张震 周广旭 王涛

盛勇, 叶艳, 朱金智, 宋瀚轩, 张震, 周广旭, 王涛. 内核纳米乳液用于塔西南地区钻井液的优化[J]. 钻井液与完井液, 2021, 38(2): 170-175. doi: 10.3969/j.issn.1001-5620.2021.02.007
引用本文: 盛勇, 叶艳, 朱金智, 宋瀚轩, 张震, 周广旭, 王涛. 内核纳米乳液用于塔西南地区钻井液的优化[J]. 钻井液与完井液, 2021, 38(2): 170-175. doi: 10.3969/j.issn.1001-5620.2021.02.007
SHENG Yong, YE Yan, ZHU Jinzhi, SONG Hanxuan, ZHANG Zhen, ZHOU Guangxu, WANG Tao. Laboratory Study on Optimization of Drilling Fluid Used in Southwest Tarim Basin with Nanoemulsion[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 170-175. doi: 10.3969/j.issn.1001-5620.2021.02.007
Citation: SHENG Yong, YE Yan, ZHU Jinzhi, SONG Hanxuan, ZHANG Zhen, ZHOU Guangxu, WANG Tao. Laboratory Study on Optimization of Drilling Fluid Used in Southwest Tarim Basin with Nanoemulsion[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 170-175. doi: 10.3969/j.issn.1001-5620.2021.02.007

内核纳米乳液用于塔西南地区钻井液的优化

doi: 10.3969/j.issn.1001-5620.2021.02.007
基金项目: 

国家自然科学基金“多孔介质中纳米颗粒与发泡剂协同构建Pickering泡沫机制及其运移规律”(ZX20200280);塔里木油田项目“英沙、玉龙区块地层特性与钻井液技术对策研究”(201019121044)

详细信息
    作者简介:

    盛勇,副高级工程师,1970年生,钻井工程专业本科。电话(0996)2175815;E-mail:shengy-tlm@petrochina.com.cn

  • 中图分类号: TE254.4

Laboratory Study on Optimization of Drilling Fluid Used in Southwest Tarim Basin with Nanoemulsion

  • 摘要: 塔西南地区油气资源丰富,具有良好的勘探开发潜力,但由于地质条件复杂,钻探过程中普遍发生井漏、卡钻、划眼、坍塌、遇阻、溢流等复杂情况,其中井漏发生高达30余次,卡钻发生10余次,钻井周期最长达719 d,严重制约了该区油气资源的勘探开发进程。为了改善塔西南地区复杂频发的情况,分析了该区井壁失稳的主要原因,在此基础上通过对比筛选,最终采用自主研制的钻井液用内核纳米乳液,其是以纳米SiO2为内核的纳米乳液,粒径D50分布在100 nm左右。其油相可以抑制黏土矿物的膨胀,并且在孔隙以及裂缝中形成“软+硬”封堵体系。室内实验表明,当添加5%的纳米内核乳液进行优化时,钻井液高温高压滤失量为3.8 mL;压力传导法显示优化后较优化前平衡时间缩短了125 min,压力减小0.337 MPa;回收率实验得到优化后钻井液回收率达到85%。证实内核纳米乳液是可以作为水基钻井液的添加剂,实现对钻井液的优化。

     

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  • 收稿日期:  2020-12-07

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