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呼探1井ϕ139.7 mm尾管精细动态控压固井技术

王敬朋 张伟 吴继伟 魏瑞华 马锦明 杨虎

王敬朋,张伟,吴继伟,等. 呼探1井ϕ139.7 mm尾管精细动态控压固井技术[J]. 石油钻探技术,2022, 50(6):92-97 doi: 10.11911/syztjs.2022021
引用本文: 王敬朋,张伟,吴继伟,等. 呼探1井ϕ139.7 mm尾管精细动态控压固井技术[J]. 石油钻探技术,2022, 50(6):92-97 doi: 10.11911/syztjs.2022021
WANG Jingpeng, ZHANG Wei, WU Jiwei, et al. Precise dynamic managed-pressure cementing technologies for ϕ139.7 mm liner cementing in Well Hutan-1 [J]. Petroleum Drilling Techniques,2022, 50(6):92-97 doi: 10.11911/syztjs.2022021
Citation: WANG Jingpeng, ZHANG Wei, WU Jiwei, et al. Precise dynamic managed-pressure cementing technologies for ϕ139.7 mm liner cementing in Well Hutan-1 [J]. Petroleum Drilling Techniques,2022, 50(6):92-97 doi: 10.11911/syztjs.2022021

呼探1井ϕ139.7 mm尾管精细动态控压固井技术

doi: 10.11911/syztjs.2022021
基金项目: 中国石油重大专项“准噶尔南缘和玛湖等重点地区优快钻完井技术集成与试验”(编号:202019F-33)部分研究内容
详细信息
    作者简介:

    王敬朋(1986—),男,河北元氏人,2013年毕业于中国石油大学(华东)石油工程专业,2017年获西南石油大学石油与天然气工程专业硕士学位,在读博士研究生,工程师,主要从事钻井与固井技术研究。E-mail:296504445@qq.com

  • 中图分类号: TE256+.3

Precise Dynamic Managed-Pressure Cementing Technologies for ϕ139.7 mm Liner Cementing in Well Hutan-1

  • 摘要:

    呼探1井ϕ139.7 mm尾管固井时封固段长、井底温度高,导致存在漏失与溢流风险大、对水泥浆性能要求高及水泥浆稠化时间不易控制等技术难点。为解决上述技术难点,在该井ϕ139.7 mm尾管固井段进行了精细动态控压固井技术试验。通过优化水泥浆配方、精细设计浆柱和优化设计套管扶正器安放位置,制定确保井筒动态压力介于地层孔隙压力与漏失压力之间等的技术措施,利用精细控压钻井装备,实现了控压下尾管、注水泥和水泥浆候凝,最终实现了全过程精细动态控压固井,该井ϕ139.7 mm尾管固井质量合格。呼探1井ϕ139.7 mm尾管精细控压固井成功,表明精细控压固井能够提高超深井长封固段窄安全密度窗口地层的固井质量,可为准噶尔盆地南缘深层油气勘探提供技术保障。

     

  • 图 1  呼探1井地层三压力剖面

    Figure 1.  Formation three-pressure profile of Well Hutan-1

    图 2  呼探1井实钻井身结构

    Figure 2.  Actual casing program of Well Hutan-1

    图 3  精细控压系统地面装备示意

    Figure 3.  Ground equipment of precise managed-pressure system

    表  1  水泥浆设计用量及性能

    Table  1.   Design dosage and performance of cement slurry

    水泥浆封固井段/
    m
    密度/
    (kg·L−1
    水泥浆
    用量/m3
    温度/
    压力/
    MPa
    稠化时间/
    min
    24 h抗压
    强度/MPa
    静胶凝
    时间/s
    稠度系数流性指数
    领浆3 523~5 3002.102414315852518.84 1300.9330.666
    中间浆5 300~6 1001.901214315840123.21 9550.9060.666
    尾浆6 100~7 6001.902213515833624.3 9150.9060.666
    下载: 导出CSV

    表  2  套管扶正器安放设计结果与套管居中度

    Table  2.   Design result of casing centralizer placement and casing centrality

    井段/m套管扶正器类型扶正器外径/mm安放间距/m扶正器数量/个套管居中度,%
    3 523~5 694弹性扶正器190.5336690~95
    5 694~7 060弹性扶正器190.5226365~91
    7 060~7 400弹性扶正器190.544 873~90
    下载: 导出CSV

    表  3  呼探1井ϕ139.7 mm尾管入井过程中的激动压力和井口回压

    Table  3.   Surge pressure and wellhead back pressure during ϕ139.7 mm liner running in Well Hutan-1

    尾管下深/
    m
    工况钻井液密度/
    (kg·L−1
    下放速度/
    (m·s−1
    激动压力/
    MPa
    井口回压/
    MPa
    5000静止2.120.0790.2732.98
    下放2.71
    5694静止2.120.0790.3672.98
    下放2.62
    6100静止2.120.0790.422.98
    下放2.56
    7000静止2.120.0790.5382.98
    下放2.44
    7601静止2.120.0790.6172.98
    下放2.37
    下载: 导出CSV
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  • 收稿日期:  2021-12-14
  • 修回日期:  2022-06-15
  • 网络出版日期:  2022-11-21

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