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窄密度窗口及小间隙超深井尾管固井技术

张华,  丁志伟,  肖振华,  于永金,  郭玉超,  杨棋翔,  程大伟

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文章导航 > 钻井液与完井液  > 2018 >  35(4): 87-91,96
张华, 丁志伟, 肖振华, 于永金, 郭玉超, 杨棋翔, 程大伟. 窄密度窗口及小间隙超深井尾管固井技术[J]. 钻井液与完井液, 2018, 35(4): 87-91,96. doi: 10.3969/j.issn.1001-5620.2018.04.016
引用本文: 张华, 丁志伟, 肖振华, 于永金, 郭玉超, 杨棋翔, 程大伟. 窄密度窗口及小间隙超深井尾管固井技术[J]. 钻井液与完井液, 2018, 35(4): 87-91,96. doi: 10.3969/j.issn.1001-5620.2018.04.016
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ZHANG Hua, DING Zhiwei, XIAO Zhenhua, YU Yongjin, GUO Yuchao, YANG Qixiang, CHENG Dawei. Liner Cementing in Ultra-deep Wells with Narrow Drilling Window and Small Annular Clearance[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(4): 87-91,96. doi: 10.3969/j.issn.1001-5620.2018.04.016
Citation: ZHANG Hua, DING Zhiwei, XIAO Zhenhua, YU Yongjin, GUO Yuchao, YANG Qixiang, CHENG Dawei. Liner Cementing in Ultra-deep Wells with Narrow Drilling Window and Small Annular Clearance[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(4): 87-91,96. doi: 10.3969/j.issn.1001-5620.2018.04.016
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窄密度窗口及小间隙超深井尾管固井技术

doi: 10.3969/j.issn.1001-5620.2018.04.016

  • 1. 天津大学化工学院, 天津 300350;

  • 2. 中国石油集团工程技术研究院有限公司, 北京 102206;

  • 3. 中国石油西南油气田公司勘探事业部, 成都 610041;

  • 4. 渤海钻探第一固井分公司, 河北任丘 062552;

  • 5. 渤海钻探国际钻采物资供应分公司, 天津 300457

基金项目: 

国家重大专项项目20课题4“深井超深井优质钻井液与固井完井技术研究”（2016ZX05020-004）、中国石油天然气集团公司课题“井筒工作液新材料新体系基础研究”（2016A-3903）。

详细信息
    作者简介:

    张华,工程师,2012年毕业于西南石油大学并获硕士学位,主要从事固井工作液体系与工艺研究。电话(010)80162263;E-mail:zhanghuadr@cnpc.com.cn。

  • 中图分类号: TE256.3

Liner Cementing in Ultra-deep Wells with Narrow Drilling Window and Small Annular Clearance

  • 1. School of Chemical Engineering, Tianjin University, Tianjin 300350;

  • 2. CNPC Engineering Technology R & D Company Limited, Beijing 102206;

  • 3. Exploration Division of PetroChina Southwest Oil and Gas Field Company, Chengdu 610041;

  • 4. The First Cementing Branch of CNPC Bohai Drilling Engineering Company Limited, Renqiu, Hebei 062552;

  • 5. International Drilling Production Materials Supply Company of CNPC Bohai Drilling Engineering Company Limited, Tianjin 300457

    摘要
  • 摘要: 针对西南油气田超深井五探1井φ168.3 mm尾管悬挂固井存在钻井期间漏失严重，井深、井底温度高，大段盐膏层、油基钻井液与水泥浆污染严重、后期作业井筒温度压力变化影响水泥环密封完整性等难题。采用低密度高强度韧性微膨胀防窜水泥浆体系，通过优化浆柱结构，控制井底动态当量密度与钻进时井底动态当量密度相当的平衡压力固井等配套工艺技术，有效防止了固井施工漏失，解决了水泥浆与油基钻井液污染严重的问题，确保了固井施工顺利，固井质量合格率100%，优质率99.8%，为深井窄密度窗口、油基钻井液固井提供了技术支撑。

     

    Abstract: Several difficulties have been met in cementing the φ168.3 mm liner (with hanger) in the ultra-deep well Wutan-1 in Southwest Oil and Gas Field, such as severe mud losses during drilling, deep well, high bottom hole temperature, long salt rock formation, severe contamination to the oil base mud and cement slurry used, and influence on the integrity of cement sheath by changing wellbore temperature in later-stage operations. Using low density high strength micro-expansion anti-channeling high toughness cement slurry with optimized column structure, the dynamic ECD at the bottom of the hole during cementing was maintained at almost the same level of the dynamic ECD at the bottom of the hole during drilling. These measures effectively prevented wellbore fluid losses from happening during well cementing, and minimized contamination to the cement slurry and the oil base drilling fluid. The job quality of cementing was 100% certified, and 99.8% of the job with high quality. This technology has provided technical support to cementing deep wells with narrow drilling windows and drilled with oil base drilling fluid.

     

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    • 参考文献(10)
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出版历程
  • 收稿日期:  2018-05-05
  • 刊出日期:  2018-07-30

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