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渝东南南川地区常压页岩气示范井应用评价及推广效果

王运海 贺庆 朱智超 龙志平 彭兴 曹建山

王运海, 贺庆, 朱智超, 龙志平, 彭兴, 曹建山. 渝东南南川地区常压页岩气示范井应用评价及推广效果[J]. 石油实验地质, 2023, 45(6): 1160-1169. doi: 10.11781/sysydz2023061160
引用本文: 王运海, 贺庆, 朱智超, 龙志平, 彭兴, 曹建山. 渝东南南川地区常压页岩气示范井应用评价及推广效果[J]. 石油实验地质, 2023, 45(6): 1160-1169. doi: 10.11781/sysydz2023061160
WANG Yunhai, HE Qing, ZHU Zhichao, LONG Zhiping, PENG Xing, CAO Jianshan. Application evaluation and promotion effect of normal pressure shale gas demonstration well in Nanchuan area in southeastern Chongqing[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2023, 45(6): 1160-1169. doi: 10.11781/sysydz2023061160
Citation: WANG Yunhai, HE Qing, ZHU Zhichao, LONG Zhiping, PENG Xing, CAO Jianshan. Application evaluation and promotion effect of normal pressure shale gas demonstration well in Nanchuan area in southeastern Chongqing[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2023, 45(6): 1160-1169. doi: 10.11781/sysydz2023061160

渝东南南川地区常压页岩气示范井应用评价及推广效果

doi: 10.11781/sysydz2023061160
基金项目: 

国家重大科技专项 2016ZX05061

中国石化科技部项目 P19017

详细信息
    作者简介:

    王运海(1975—),男,硕士,教授级高级工程师,从事油气勘探开发科研及管理工作。E-mail:wangyunh.hdsj@sinopec.com

  • 中图分类号: TE2

Application evaluation and promotion effect of normal pressure shale gas demonstration well in Nanchuan area in southeastern Chongqing

  • 摘要: 渝东南南川地区常压页岩气资源丰富,是页岩气勘探开发的重要地区。该区前期钻井受地质条件复杂和工程技术配套不完善等因素影响,提速提效总体成效与常压页岩气规模效益开发要求存在差距。为此,选取该区阳春沟区块阳页54-3HF井作为首口常压页岩气示范井,攻关形成区域优快钻完井示范技术序列。在分析区域钻井技术难点的基础上,结合地层抗压特性、地层压力系统等基础研究,系统性攻关浅表层穿漏技术、井身结构优化技术、提速工具优选技术、轨迹控制与导向技术、低密度强封堵油基钻井液技术和优快完井技术等钻井关键技术,形成以浅表层工勘、大排量清水抢钻井、优化井身结构、全国产化提速工具配套、低密度强封堵油基钻井液、地质工程一体化导向、低承压井筒环境优快固井技术为核心的低成本优快钻井示范技术体系。示范井钻井周期19.96 d,刷新国内4 500 m井深最短钻井周期,机械钻速24.88 m/h,较同区相同井深最快机械钻速10.29 m/h提高141.79%,优质页岩钻遇率100%,固井质量优秀,起到了良好的示范引领作用。推广应用后,地区机械钻速、钻井周期等各项技术经济指标均得到明显提升,加快了南川地区常压页岩气勘探开发进程。南川地区常压页岩气示范井攻关形成的高效钻完井技术系列能够满足常压页岩气水平井钻井提速提效的要求,有效推动了石油工程“四提”迈上新台阶,为四川盆地周缘类似气田建设奠定了技术基础,助力国内上游稳油增气降本提效。

     

  • 图  1  渝东南南川地区阳页54平台工勘预测漏失位置

    Figure  1.  Predicted leakage location of Yangye 54 platform in Nanchuan area in southeastern Chongqing

    图  2  渝东南南川地区阳页54-3HF井井身结构优化方案

    Figure  2.  Well structure optimization scheme of Yangye 54-3HF well in Nanchuan area in southeastern Chongqing

    图  3  渝东南南川地区阳页54-3HF井地层压力剖面曲线

    Figure  3.  Formation pressure profile curves of Yangye 54-3HF well in Nanchuan area in southeastern Chongqing

    图  4  渝东南南川地区应用井机械钻速对比

    Figure  4.  Comparison of ROP for applied wells in Nanchuan area in southeastern Chongqing

    图  5  渝东南南川地区DP4平台水平段钻井指标

    Figure  5.  Drilling indicators for horizontal sections of DP4 platform in Nanchuan area in southeastern Chongqing

    表  1  渝东南南川地区阳页54-3HF井钻头使用分析

    Table  1.   Analysis of drilling bits used in Yangye 54-3HF well in Nanchuan area in southeastern Chongqing

    序号 钻头尺寸/mm 钻头类型 钻头型号 进尺/m 机械钻速/(m/h) 同平台邻井机械钻速/(m/h) 提速效果/%
    1 406.4 PDC KS1662AFGRS 168 24.00 19.75 21.52
    2 311.2 PDC KSD1663DFRT 254 31.75 16.88 61.55
    3 311.2 PDC KSD1663DFRT 455 35.74 16.88 61.55
    4 215.9 PDC KSD1662DFRT 1 102 31.49 25.35 24.22
    5 215.9 PDC KSD1662RT 2 617 22.37 17.32 29.16
    下载: 导出CSV

    表  2  渝东南南川地区各区块特点与井身结构方案

    Table  2.   Stratum characteristics and well structure scheme of each block in Nanchuan area in southeastern Chongqing

    区块 地层特点 目的层地层压力系数 井身结构
    阳春沟 浅表地层漏失风险高,整体稳定;中部地层承压能力高 1.0~1.15 简化型三级 导管:Φ406.4 mm×168 m飞仙关组
    一开:Φ311.2 mm×877 m韩家店组
    二开:Φ215.9 mm×4 596 m龙马溪组
    东胜 浅表自流井组、须家河组、雷口坡组地层漏、垮风险大,井段长;中部地层承压能力高 1.1~1.3 简化型四级 导管:Φ609.6 mm×270 m嘉陵江组
    一开:Φ406.4 mm×960 m飞仙关组
    二开:Φ311.2 mm×2 240 m韩家店组
    三开:Φ215.9 mm×5 132 m龙马溪组
    平桥南 浅表地层漏失风险高,整体稳定;中部地层承压能力低 1.1~1.25 简化型三级 导管:Φ406.4 mm×254 m嘉陵江组
    一开:Φ311.2 mm×2 458 m韩家店组
    二开:Φ215.9 mm×5 824 m龙马溪组
    武隆、道真 浅表地层漏失风险高,整体稳定;中部地层易漏失,承压能力低 1.0~1.1 简化型二级 一开:Φ311.2 mm×995 m嘉陵江组
    二开:Φ215.9 mm×5 297 m龙马溪组
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-09-10
  • 修回日期:  2023-10-30
  • 刊出日期:  2023-11-28

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