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温度增强型高弹性液体胶塞暂堵剂研发及应用

刘伟 朱方辉 于淑珍 李琼玮 张振云 董晓焕 李明星

刘伟, 朱方辉, 于淑珍, 李琼玮, 张振云, 董晓焕, 李明星. 温度增强型高弹性液体胶塞暂堵剂研发及应用[J]. 钻井液与完井液, 2019, 36(6): 782-788. doi: 10.3969/j.issn.1001-5620.2019.06.022
引用本文: 刘伟, 朱方辉, 于淑珍, 李琼玮, 张振云, 董晓焕, 李明星. 温度增强型高弹性液体胶塞暂堵剂研发及应用[J]. 钻井液与完井液, 2019, 36(6): 782-788. doi: 10.3969/j.issn.1001-5620.2019.06.022
LIU Wei, ZHU Fanghui, YU Shuzhen, LI Qiongwei, ZHANG Zhenyun, DONG Xiaohuan, LI Mingxing. Development and Application of a Temperature Enhanced Highly Elastic Liquid Gel Temporary Plugging Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(6): 782-788. doi: 10.3969/j.issn.1001-5620.2019.06.022
Citation: LIU Wei, ZHU Fanghui, YU Shuzhen, LI Qiongwei, ZHANG Zhenyun, DONG Xiaohuan, LI Mingxing. Development and Application of a Temperature Enhanced Highly Elastic Liquid Gel Temporary Plugging Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(6): 782-788. doi: 10.3969/j.issn.1001-5620.2019.06.022

温度增强型高弹性液体胶塞暂堵剂研发及应用

doi: 10.3969/j.issn.1001-5620.2019.06.022
基金项目: 

中国石油天然气股份有限公司“长庆油田5000万吨持续高效稳产关键技术研究与应用”课题11(2016E-0511)

详细信息
    作者简介:

    刘伟,工程师,主要从事油气田化学剂研究及腐蚀防护方面工作。电话(029)86593149;E-mail:lw6_cq@petrochina.com.cn

    通讯作者:

    朱方辉,电话(029)86590751

  • 中图分类号: TE357.12

Development and Application of a Temperature Enhanced Highly Elastic Liquid Gel Temporary Plugging Agent

  • 摘要: 针对低压气井压井漏失难题,本文基于对有机交联凝胶结构上的认识,使用聚乙烯亚胺(PEI)作为交联剂制备了一种弹性液体胶塞EGL-1,能显著提高地层承压能力并阻断压井液漏失,降低储层损害。该体系基本配方为:2%抗高温聚合物SPAM+(1%~1.6%)交联剂PEI+0.02%稳定剂+清水,并对其地面流变性能、黏弹性能、破胶性能和堵漏性能进行了测试与评价。胶塞初始溶液流变测试结果表明,剪切速率为200 s-1时的表观黏度稳定在350 mPa · s内,具有较好泵送能力;交联成胶后的胶塞黏弹测试表明,弹性模量在100 Pa~470 Pa之间,黏性模量在10 Pa~60 Pa之间,温度越高,胶塞强度越高。物理模拟实验结果表明,胶塞在裂缝岩心抗压达9 MPa以上,返排突破压力小于1 MPa,岩心渗透率恢复值达90%,可实现自然解堵。该技术在长庆下古碳酸盐岩低压气井暂堵压井进行了成功试验,对类似低压气藏防漏失压井具有一定借鉴作用。

     

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出版历程
  • 收稿日期:  2019-09-13
  • 刊出日期:  2019-12-30

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