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顺北油气田火成岩侵入体覆盖区超深井优快钻井技术

翟科军 于洋 刘景涛 白彬珍

翟科军, 于洋, 刘景涛, 白彬珍. 顺北油气田火成岩侵入体覆盖区超深井优快钻井技术[J]. 石油钻探技术, 2020, 48(2): 1-5. doi: 10.11911/syztjs.2020004
引用本文: 翟科军, 于洋, 刘景涛, 白彬珍. 顺北油气田火成岩侵入体覆盖区超深井优快钻井技术[J]. 石油钻探技术, 2020, 48(2): 1-5. doi: 10.11911/syztjs.2020004
ZHAI Kejun, YU Yang, LIU Jingtao, BAI Binzhen. Ultra-Deep Well Drilling Technology in the Igneous Invasion Coverage Area of the Shunbei Oil and Gas Field[J]. Petroleum Drilling Techniques, 2020, 48(2): 1-5. doi: 10.11911/syztjs.2020004
Citation: ZHAI Kejun, YU Yang, LIU Jingtao, BAI Binzhen. Ultra-Deep Well Drilling Technology in the Igneous Invasion Coverage Area of the Shunbei Oil and Gas Field[J]. Petroleum Drilling Techniques, 2020, 48(2): 1-5. doi: 10.11911/syztjs.2020004

顺北油气田火成岩侵入体覆盖区超深井优快钻井技术

doi: 10.11911/syztjs.2020004
基金项目: 中国石油化工股份有限公司重大科技项目群“顺北油气田一区优快钻井技术研究”(编号:P18021-1)部分研究内容
详细信息
    作者简介:

    翟科军(1972—),男,山东鱼台人,1996年毕业于西南石油学院钻井工程专业,高级工程师,主要从事超深井钻井完井技术方面的研究和管理工作。E-mail: zaikj.xbsj@sinopec.com

  • 中图分类号: TE243

Ultra-Deep Well Drilling Technology in the Igneous Invasion Coverage Area of the Shunbei Oil and Gas Field

  • 摘要:

    顺北油气田火成岩侵入体覆盖区超深井钻井时,既存在二叠系火成岩井漏、志留系泥岩垮塌和古生界深部地层可钻性差等问题,还存在因火成岩侵入体地层坍塌压力高带来的钻井难题。前期,该油气田为了解决火成岩侵入体覆盖区超深井井眼垮塌的问题,提高了钻井液密度,并对火成岩侵入体进行了专封,但效果较差,而且超深井完钻井眼直径仅为120.7 mm,定向工具故障率高,导致钻井效率较低。为此,建立了地层三压力剖面,分析了钻井必封点及套管序列,优化了火成岩侵入体覆盖区超深井井身结构,将完钻井眼直径由120.7 mm增大为143.9 mm,并研究应用了二叠系防漏技术、志留系井壁稳定技术、火成岩侵入体安全钻井技术及分层钻井提速技术,形成了顺北油气田火成岩侵入体覆盖区超深井优快钻井技术。该优快钻井技术在7口超深井中进行了现场应用,钻井周期大幅缩短,机械钻速明显提高,表明其可以解决现场施工存在的技术难题,具有推广应用价值。

     

  • 表  1  火成岩侵入体覆盖区地层三压力剖面

    Table  1.   Formation tri-pressure profile of igneous invasion

    地层位置深度/m当量密度/(kg·L–1
    孔隙压力坍塌压力破裂压力
    火成岩侵入体以上地层0~6 9051.01~1.211.02~1.381.85~2.36
    火成岩侵入体6 905~6 9451.02~1.091.55~1.651.94~2.10
    火成岩侵入体底部至一间房组顶部6 945~7 2591.02~1.151.05~1.161.85~2.18
    一间房组7 259~7 3931.10~1.181.07~1.151.85~2.14
    下载: 导出CSV

    表  2  火成岩侵入体覆盖区超深井优化前后的井身结构

    Table  2.   The original casing program and the casing program in igneous invasion coverage area

    开钻
    次序
    原井身结构新井身结构
    钻头直径/
    mm
    套管直径/
    mm
    下深/
    m
    钻头直径/
    mm
    套管直径/
    mm
    下深/
    m
    一开346.1273.12 000374.7298.51 500
    二开250.9193.76 500269.9219.16 500
    三开165.1139.77 400190.5168.37 400
    四开120.7143.9
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-09-25
  • 修回日期:  2019-12-17
  • 网络出版日期:  2020-03-02

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