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顺北56X特深水平井钻井关键技术

白彬珍 曾义金 葛洪魁

白彬珍,曾义金,葛洪魁. 顺北56X特深水平井钻井关键技术[J]. 石油钻探技术,2022, 50(6):49-55 doi: 10.11911/syztjs.2022114
引用本文: 白彬珍,曾义金,葛洪魁. 顺北56X特深水平井钻井关键技术[J]. 石油钻探技术,2022, 50(6):49-55 doi: 10.11911/syztjs.2022114
BAI Binzhen, ZENG Yijin, GE Hongkui. Key technologies for the drilling of ultra-deep horizontal Well Shunbei 56X [J]. Petroleum Drilling Techniques,2022, 50(6):49-55 doi: 10.11911/syztjs.2022114
Citation: BAI Binzhen, ZENG Yijin, GE Hongkui. Key technologies for the drilling of ultra-deep horizontal Well Shunbei 56X [J]. Petroleum Drilling Techniques,2022, 50(6):49-55 doi: 10.11911/syztjs.2022114

顺北56X特深水平井钻井关键技术

doi: 10.11911/syztjs.2022114
基金项目: 中国石化科技攻关项目“特深层安全高效钻井关键技术”(编号:P21081-2)部分研究内容
详细信息
    作者简介:

    白彬珍(1981—),男,山东沂水人,2004年毕业于石油大学(华东)石油工程专业,在读博士研究生,高级工程师,主要从事深井超深井、定向井、水平井钻井相关科研及技术管理工作。E-mail:baibz.sripe@sinopec.com

  • 中图分类号: TE921

Key Technologies for the Drilling of Ultra-Deep Horizontal Well Shunbei 56X

  • 摘要:

    顺北56X井是部署在顺北V号条带的超深重点风险预探井,钻井过程中面临二叠系和志留系易漏失、奥陶系破碎地层井壁稳定性差、奥陶系桑塔木组易井斜、井眼轨迹控制难和储层钻遇裂缝带气侵等技术难点。为此,针对二叠系、志留系和奥陶系的地质特征,选用防漏堵漏钻井液和高温强封堵油基钻井液,并制定相应维护处理措施,有效预防了二叠系和志留系的漏失,保障了奥陶系的井壁稳定;应用“大扭矩螺杆+垂直钻井系统”防斜打快技术,实现了直井段的防斜打快;通过优化井眼轨道、采用工具面快速调控工艺、配套高温随钻测量技术和制定井眼轨迹技术方案,使该井井眼轨迹与井眼轨道符合度高,实现准确中靶;利用“微过平衡密度+简易控压”钻井技术,解决了储层钻遇裂缝带气侵的问题。顺北56X井钻井过程中未出现井控风险,准确中靶,顺利钻至井深9 300.00 m(垂深8 087.94 m)完钻,成为我国目前最深的水平井,同时也是目前亚洲陆上最深的水平井。该井安全成井,表明我国具备了钻特深水平井的能力,可为中国石化“深地一号”工程顺北特深层油气藏勘探开发提供技术支撑。

     

  • 图 1  地面循环降温装置

    Figure 1.  Ground circulation cooling device

    图 2  顺北56X井控压钻进中的井口回压与全烃值变化曲线

    Figure 2.  Variation curves of wellhead back pressure and total hydrocarbon in managed pressure drilling of Well Shunbei 56X

    表  1  顺北56X井井眼轨道设计结果

    Table  1.   Well-path design of Well Shunbei 56X

    井深/m井斜角/(°)方位角/(°)垂深 /m南北位移/m东西位移/m水平位移/m狗腿度/((°)·(30m)−1
    7 756.00 1.51234.917 754.07−17.54−43.11 46.540
    7 7 90.00 1.51234.917 788.06−18.05−43.84 47.410
    8 090.4578.00 85.788 005.30 −7.83127.77128.01 7.92
    8 336.2183.41 90.008 045.00 1.02369.99370.00 0.83
    8 829.3186.12 90.008 090.00 1.02860.99860.99 0.16
    下载: 导出CSV

    表  2  顺北56X井优化后的井眼轨道

    Table  2.   Optimized well-path of Well Shunbei 56X

    井深/m井斜角/(°)方位角/(°)垂深/m南北位移/m东西位移/m水平位移/m狗腿度/
    ((°)·(30m)−1
    7 756.00 1.51234.917 754.07−17.54−43.11−43.160
    7 777.00 1.51234.917 775.06−17.85−43.56−43.610
    7 787.00 1.80 85.387 785.06−17.92−43.51−43.56 9.500
    7 9 62.8657.49 85.387 931.96−11.19 39.82 39.79 9.500
    8 315.4784.76 90.008 045.00 1.02369.99370.00 2.349
    8 808.5384.76 90.008 090.00 1.02860.99860.990
    下载: 导出CSV

    表  3  不同井段选用的随钻测量仪器的型号

    Table  3.   Preferred MWD instrument models in different well sections

    井段/m井底静温/℃循环温度/℃仪器型号
    7 756.00~7 958.00166152APS175改进型
    7 958.00~8 986.001721603D-I185
    8 986.00~9 300.00178167TEL185
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-05-06
  • 修回日期:  2022-10-17
  • 网络出版日期:  2022-11-08

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