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克拉苏构造带博孜1区块复杂超深井钻井完井关键技术

殷召海 李国强 王海 丁永亮 王雲 刘长柱

殷召海, 李国强, 王海, 丁永亮, 王雲, 刘长柱. 克拉苏构造带博孜1区块复杂超深井钻井完井关键技术[J]. 石油钻探技术, 2021, 49(1): 16-21. doi: 10.11911/syztjs.2020130
引用本文: 殷召海, 李国强, 王海, 丁永亮, 王雲, 刘长柱. 克拉苏构造带博孜1区块复杂超深井钻井完井关键技术[J]. 石油钻探技术, 2021, 49(1): 16-21. doi: 10.11911/syztjs.2020130
YIN Zhaohai, LI Guoqiang, WANG Hai, DING Yongliang, WANG Yun, LIU Changzhu. Key Technologies for Drilling and Completing Ultra-deep Wells in the Bozi 1 Block of Kelasu Structure[J]. Petroleum Drilling Techniques, 2021, 49(1): 16-21. doi: 10.11911/syztjs.2020130
Citation: YIN Zhaohai, LI Guoqiang, WANG Hai, DING Yongliang, WANG Yun, LIU Changzhu. Key Technologies for Drilling and Completing Ultra-deep Wells in the Bozi 1 Block of Kelasu Structure[J]. Petroleum Drilling Techniques, 2021, 49(1): 16-21. doi: 10.11911/syztjs.2020130

克拉苏构造带博孜1区块复杂超深井钻井完井关键技术

doi: 10.11911/syztjs.2020130
基金项目: 中国石油集团公司重大科技专项 “重大工程关键技术装备研究与应用”(编号:2018E-21)资助
详细信息
    作者简介:

    殷召海(1982—),男,江苏泗洪人,2007年毕业于中国石油大学(北京)电子信息工程专业,工程师,主要从事钻井井眼轨迹控制与提速技术研究。E-mail:yinzhaohai@163.com。

  • 中图分类号: TE245

Key Technologies for Drilling and Completing Ultra-deep Wells in the Bozi 1 Block of Kelasu Structure

  • 摘要: 克拉苏构造带博孜1区块复杂超深井钻井完井存在上部巨厚砾岩层钻速低、钻井周期长、固井质量差、钻井安全风险高等技术难点。为解决这些技术难点,结合区域地质特征,通过理论分析优化了井身结构,优选了系列钻井提速技术、提出了组合式盐底卡层技术,制定了一系列防漏堵漏技术措施和固井技术措施,形成了克拉苏构造博孜1区块超深井钻井完井关键技术。该技术在B1103井等4口井进行了现场试验,与未应用该技术的邻井相比,机械钻速提高了34.4%,钻井周期缩短了131 d,完井周期缩短了141 d,取得了良好的提速效果。这表明,该技术能够解决博孜1区块超深井钻井完井存在的技术难点,满足博孜1区块安全高效钻井完井的需求,可以在该区块推广应用。

     

  • 图 1  非平面切削齿的结构

    Figure 1.  Non-planar cutter structure

    图 2  B1103井的井身结构

    Figure 2.  Casing program of Well B1103

    表  1  钻井参数优化结果

    Table  1.   Optimization results of drilling parameters

    开次 优化
    前后
    泵压/
    MPa
    排量/
    (L·s–1
    钻压/
    kN
    转速/
    (r·min–1
    二开 优化前 20~24 40~50 60~120 60~85
    优化后 25~30 47~77 100~180 80~100
    三开 优化前 20~26 35~45 80~140 60~90
    优化后 25~30 39~56 120~200 80~110
    下载: 导出CSV

    表  2  应用新技术后的钻井完井指标统计结果

    Table  2.   Statistical results of drilling and completion indexes after application of the new technologies

    井号 井深/m 钻井周期/
    d
    完井周期/
    d
    平均机械钻速/
    (m·h–1
    B1-2 7 098 365 385 1.92
    B1T 6 998 359 385 2.03
    B1103 7 242 345 368 2.25
    B1104 7 299 355 378 2.12
    平均 7 159 356 379 2.07
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-04-21
  • 修回日期:  2020-11-15
  • 网络出版日期:  2020-12-25
  • 刊出日期:  2021-01-30

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