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一种新型耐高温碳酸盐岩酸压胶凝酸及其应用

王萌 车明光 周长林 李力 陈伟华 刘飞

王萌, 车明光, 周长林, 李力, 陈伟华, 刘飞. 一种新型耐高温碳酸盐岩酸压胶凝酸及其应用[J]. 钻井液与完井液, 2020, 37(5): 670-676. doi: 10.3969/j.issn.1001-5620.2020.05.022
引用本文: 王萌, 车明光, 周长林, 李力, 陈伟华, 刘飞. 一种新型耐高温碳酸盐岩酸压胶凝酸及其应用[J]. 钻井液与完井液, 2020, 37(5): 670-676. doi: 10.3969/j.issn.1001-5620.2020.05.022
WANG Meng, CHE Mingguang, ZHOU Changlin, LI Li, CHEN Weihua, LIU Fei. A Novel Gelled Acid for the Acid Fracturing of the High-Temperature Carbonates and its Application[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(5): 670-676. doi: 10.3969/j.issn.1001-5620.2020.05.022
Citation: WANG Meng, CHE Mingguang, ZHOU Changlin, LI Li, CHEN Weihua, LIU Fei. A Novel Gelled Acid for the Acid Fracturing of the High-Temperature Carbonates and its Application[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(5): 670-676. doi: 10.3969/j.issn.1001-5620.2020.05.022

一种新型耐高温碳酸盐岩酸压胶凝酸及其应用

doi: 10.3969/j.issn.1001-5620.2020.05.022
基金项目: 

中国石油天然气股份有限公司2016-2020年重大科技攻关项目“四川盆地深层高温高压含硫气藏储层改造技术研究与应用”(2016E-0609)所属课题“四川高温高压碳酸盐岩储层改造基础与实验研究”(XNS15JS2017-043)

详细信息
    作者简介:

    王萌,高级工程师,博士,1985年生,毕业于中国石油大学(北京)化学技术与工程专业,现在从事油气藏储层改造工作。E-mail:wangmeng85@petrochina.com.cn

  • 中图分类号: TE357.12

A Novel Gelled Acid for the Acid Fracturing of the High-Temperature Carbonates and its Application

  • 摘要: 酸压改造是高效开发碳酸盐岩储层油气资源的关键措施,酸压工作液的性能及其与储层的适用性是成功增产的前提。针对现有酸液不能很好满足深层高温储层酸压改造需求的难题,优选研发了一种新型耐高温碳酸盐岩酸压胶凝酸体系,对其进行了综合性能评价和现场试验。性能评价和现场试验结果表明:新型胶凝酸使用的胶凝剂(0.8%)降阻率达68.5%;180℃下缓蚀剂和新型胶凝酸对N80试片的缓蚀率达96.70%和98.03%;新型胶凝酸在180℃和170 s-1连续剪切70 min后黏度保持在23.0 mPa·s;在180℃下老化4 h后,胶凝酸保持均相,未出现沉淀、残渣、分层等现象。新型胶凝酸的酸岩反应速率约为现场在用常规胶凝酸的一半。这些性质有利于降低施工难度和风险,实现深穿透储层,形成更长的酸蚀裂缝,实现深度改造和有效提产。新型胶凝酸在高温碳酸盐岩酸压现场试验中获得了初步成功。该新型胶凝酸能够满足180℃碳酸盐岩酸压改造需求,将进一步推广应用。

     

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出版历程
  • 收稿日期:  2020-07-15
  • 刊出日期:  2020-10-28

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