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井壁强化机理与致密承压封堵钻井液技术新进展

邱正松,  暴丹,  李佳,  刘均一,  陈家旭

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文章导航 > 钻井液与完井液  > 2018 >  35(4): 1-6
邱正松, 暴丹, 李佳, 刘均一, 陈家旭. 井壁强化机理与致密承压封堵钻井液技术新进展[J]. 钻井液与完井液, 2018, 35(4): 1-6. doi: 10.3969/j.issn.1001-5620.2018.04.001
引用本文: 邱正松, 暴丹, 李佳, 刘均一, 陈家旭. 井壁强化机理与致密承压封堵钻井液技术新进展[J]. 钻井液与完井液, 2018, 35(4): 1-6. doi: 10.3969/j.issn.1001-5620.2018.04.001
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QIU Zhengsong, BAO Dan, LI Jia, LIU Junyi, CHEN Jiaxu. Mechanisms of Wellbore Strengthening and New Advances in Lost Circulation Control with Dense Pressure Bearing Zone[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(4): 1-6. doi: 10.3969/j.issn.1001-5620.2018.04.001
Citation: QIU Zhengsong, BAO Dan, LI Jia, LIU Junyi, CHEN Jiaxu. Mechanisms of Wellbore Strengthening and New Advances in Lost Circulation Control with Dense Pressure Bearing Zone[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(4): 1-6. doi: 10.3969/j.issn.1001-5620.2018.04.001
shu

井壁强化机理与致密承压封堵钻井液技术新进展

doi: 10.3969/j.issn.1001-5620.2018.04.001

  • 1. 中国石油大学(华东)石油工程学院, 山东青岛 266580;

  • 2. 中国石油化工股份有限公司胜利石油工程有限公司钻井工程技术公司, 山东东营 257064

基金项目: 

“十三五”国家科技重大专项“环保钻井液与防漏堵漏新技术研究”（2017ZX05032-004-005）、国家自然基金“高温高密度高矿化度钻井液流变性的调控机理及新方法”（U1562101）、“十三五”国家科技重大专项“复杂地层钻井液防塌技术对策及纳米微乳冲洗技术研究”（2016ZX05020004-010）。

详细信息
    作者简介:

    邱正松,博士生导师,1964年生,主要从事井壁稳定理论与防塌防漏钻井液技术、复杂深层超高温超深井钻井液关键技术、海洋深水钻井液完井液技术等科研及教学工作。电话(0532)86983576;E-mail:qiuzs63@sina.com。

  • 中图分类号: TE282

Mechanisms of Wellbore Strengthening and New Advances in Lost Circulation Control with Dense Pressure Bearing Zone

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

  • 2. Drilling Engineering Technology Branch of Shengli Petroleum Engineering Ltd., Dongying, Shandong 257064

    摘要
  • 摘要: 井壁强化钻井液技术已成为提高地层承压能力的重要手段之一，目前中国在井壁强化微观机理、模拟实验评价方法和新材料研发等方面，均有待深入研究。基于微观颗粒物质力学的力链网络结构分析基本原理，探讨了裂缝地层致密承压封堵方法。提出了井壁强化材料特性的精细化表征参数，通过颗粒类型、粒度级配及浓度优化，利用刚性颗粒、弹性颗粒和纤维材料等协同封堵裂缝，可有效形成具有“强力链网络结构”的致密承压封堵层。利用自行研制的井壁强化钻井液封堵模拟实验装置，开展了井壁强化钻井液封堵模拟实验优化研究。模拟实验证明，新研制的井壁强化材料不仅能够有效封堵裂缝，形成致密承压裂缝封堵层，且当支撑裂缝至设计开度，可提升地层承压能力。

     

    Abstract: Wellbore strengthening has become one of the important drilling fluid technologies for enhancing the pressure bearing capacity of formations. The micro-mechanisms, simulation test methods and development of new materials presently in China all require extensive study. Methods of controlling mud losses into fractured formations with dense pressure bearing zone are investigated based on the basic principles of force chain network structure analysis of micro particle mechanics. Fine characterization parameters for the characteristics of wellbore strengthening materials are presented in the paper. A dense pressure bearing plugging zone with "strong force chain network structure" can be formed with rigid particles, elastic particles and fibrous materials through sizing of particles (type and size) and optimization of particle concentration. Using self-developed simulation test device, wellbore strengthening with drilling fluid plugging materials was studied through simulation test. The experimental results have proved that the new wellbore strengthening material developed is not only able to effectively plug micro-fractures to form a dense pressure bearing zone to seal off the fractures, it also enhances pressure bearing capacity of the formation when the widths of the fractures are opened to the designed width by the wellbore strengthening material.

     

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  • 收稿日期:  2018-03-01
  • 刊出日期:  2018-07-30

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