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渤中19-6深部潜山高温气层保护钻井液技术

杨一凡,  邱正松,  李佳,  赵欣,  钟汉毅,  刘书杰,  邢希金,  冯桓榰

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文章导航 > 钻井液与完井液  > 2020 >  37(4): 476-481
杨一凡, 邱正松, 李佳, 赵欣, 钟汉毅, 刘书杰, 邢希金, 冯桓榰. 渤中19-6深部潜山高温气层保护钻井液技术[J]. 钻井液与完井液, 2020, 37(4): 476-481. doi: 10.3969/j.issn.1001-5620.2020.04.012
引用本文: 杨一凡, 邱正松, 李佳, 赵欣, 钟汉毅, 刘书杰, 邢希金, 冯桓榰. 渤中19-6深部潜山高温气层保护钻井液技术[J]. 钻井液与完井液, 2020, 37(4): 476-481. doi: 10.3969/j.issn.1001-5620.2020.04.012
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YANG Yifan, QIU Zhengsong, LI Jia, ZHAO Xin, ZHONG Hanyi, LIU Shujie, XING Xijin, FENG Huanzhi. Technology Drilling Fluid for Protecting High Temperature Deep Buried Hill Gas Reservoirs in Bozhong 19-6 block[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(4): 476-481. doi: 10.3969/j.issn.1001-5620.2020.04.012
Citation: YANG Yifan, QIU Zhengsong, LI Jia, ZHAO Xin, ZHONG Hanyi, LIU Shujie, XING Xijin, FENG Huanzhi. Technology Drilling Fluid for Protecting High Temperature Deep Buried Hill Gas Reservoirs in Bozhong 19-6 block[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(4): 476-481. doi: 10.3969/j.issn.1001-5620.2020.04.012
shu

渤中19-6深部潜山高温气层保护钻井液技术

doi: 10.3969/j.issn.1001-5620.2020.04.012

  • 1. 中国石油大学(华东)石油工程学院, 山东青岛 266580;

  • 2. 中海油研究总院有限公司, 北京 100028

基金项目: 

国家自然科学基金项目“裂缝地层致密承压封堵机理与温敏智能堵漏新方法研究”（51974354）；十三五国家重大科技专项“环保钻井液与防漏堵漏新技术研究”（2017ZX05032-004-005）；中海油研究总院自立课题“深水深层井钻井关键技术研究”（2019KJ-ZC02）

详细信息
    作者简介:

    杨一凡,中国石油大学(华东)油气井工程专业在读硕士研究生,现在主要从事钻井液技术研究。电话17806279561;E-mail:yyfupc@163.com

    通讯作者:

    邱正松,E-mail:qiuzs63@sina.com

  • 中图分类号: TE254.3

Technology Drilling Fluid for Protecting High Temperature Deep Buried Hill Gas Reservoirs in Bozhong 19-6 block

  • 1. School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266580;

  • 2. CNOOC Research Institute, Beijing 100028

    摘要
  • 摘要: 针对渤中19-6深部潜山高温气层特点，通过岩心分析和敏感性评价实验，分析了渤中19-6储层主要损害机理，并优化出了一套综合性能较好的抗高温水基钻井液配方。实验表明，该气层基质为典型的低孔低渗储层，黏土矿物含量较少，微裂缝较发育，具有强速敏性、中等偏弱应力敏感性，水敏性、盐敏性和碱敏性较弱，无酸敏性损害等。储层微裂缝发育易导致外来固相侵入损害，微裂缝内颗粒胶结疏松可促进速敏性损害，也存在水锁损害。优化钻井液的岩心渗透率恢复值达85.95%，水锁损害率为13.21%，其储层保护性能优异；可抗温210℃，也可抗10% NaCl、1% CaCl2和8%劣质土的污染，满足渤中19-6区块深部潜山气层钻井工程及储层保护技术要求。

     

    Abstract: To avoid formation damage to the high temperature deep buried hill gas reservoir in Bozhong 19-6 block, a high temperature water base drilling fluid with good overall performance was developed based on rock core analysis, permeability sensitivity experiment and analysis on the mechanisms of reservoir damage. Laboratory experimental results showed that the matrix of the gas reservoir in Bozhong 19-6 block has low porosity and low permeability. The reservoir rocks have low content of clay and are full of fractures. Laboratory experiments also showed that the reservoir rocks have strong flow rate sensitivity, medium to low stress sensitivity, and weak water, salt and alkali sensitivity. No acid sensitivity was found during laboratory experiment. The reservoir rocks are easily damaged by solids invasion because of the micro fractures developed therein. Loose cementation of particles in the micro fractures results in flow rate sensitivity and water block of the reservoir rocks. Cores flooded with the drilling fluid developed had percent permeability recovery of 85.95% and percent water block damage of 13.21%, indicating that the drilling fluid had excellent reservoir protection capacity. After being aged at 210 ℃ or contaminated with 10% NaCl, 1% CaCl2 or 8% poor quality clay, the drilling fluid still functioned properly, satisfying the requirements of gas reservoir drilling and reservoir protection in the Bozhong 19-6 block.

     

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    • 参考文献(13)
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出版历程
  • 收稿日期:  2020-04-26
  • 刊出日期:  2020-08-28

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