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气顶砂岩油藏型储气库运行上限压力和库容量定量评价研究

胡彩云 李聪 杨智斌 贾倩 孙彦春 李超锋 孙军昌 杨跃辉 孙东生

胡彩云,李聪,杨智斌,等,2024. 气顶砂岩油藏型储气库运行上限压力和库容量定量评价研究[J]. 地质力学学报,30(3):419−426 doi: 10.12090/j.issn.1006-6616.2023075
引用本文: 胡彩云,李聪,杨智斌,等,2024. 气顶砂岩油藏型储气库运行上限压力和库容量定量评价研究[J]. 地质力学学报,30(3):419−426 doi: 10.12090/j.issn.1006-6616.2023075
HU C Y,LI C,YANG Z B,et al.,2024. Quantitative evaluation of maximum operating pressure and storage capacity for gas-top sandstone reservoir-type gas storage[J]. Journal of Geomechanics,30(3):419−426 doi: 10.12090/j.issn.1006-6616.2023075
Citation: HU C Y,LI C,YANG Z B,et al.,2024. Quantitative evaluation of maximum operating pressure and storage capacity for gas-top sandstone reservoir-type gas storage[J]. Journal of Geomechanics,30(3):419−426 doi: 10.12090/j.issn.1006-6616.2023075

气顶砂岩油藏型储气库运行上限压力和库容量定量评价研究

doi: 10.12090/j.issn.1006-6616.2023075
基金项目: 中国石油勘探与生产分公司重点科技攻关项目(2022ZS0903);国家自然科学基金面上项目 (42174122)
详细信息
    作者简介:

    胡彩云(1983—),女,硕士,主要从事油气田开发、储气库油气藏分析。Email:174163154@qq.com

  • 中图分类号: TE822

Quantitative evaluation of maximum operating pressure and storage capacity for gas-top sandstone reservoir-type gas storage

Funds: This research is financially supported by the Key Science and Technology Research Project of the China National Petroleum Exploration and Production Corporation (Grant No. 2022ZS0903) and the National Natural Science Foundation of China (Grant No. 42174122).
  • 摘要: 提高运行上限压力是增加储气库工作气量最直接、最有效且综合效益最优的方案。通过在矿场井中原位实测得到的最小主应力,对冀东南堡油田1-29气顶砂岩油藏型储气库的运行上限压力和库容量进行了定量评价,研究结果表明:基于最小主应力准则,盖层发生拉张破坏对应的上限压力最低,即根据实测最小主应力确定南堡油田1-29储气库的运行上限压力为27.2 MPa。基于有效库容计算模型,综合考虑气层含水量、残余水和边缘孔隙以及油层的波及系数、气驱液效率和含油空间利用率等因素,将上限压力从原始地层压力22.5 MPa提升到27.2 MPa,储气库的有效库容从15.46×108 m3增加到18.14×108 m3,库容量增加约17.3%,预期可显著提升储气库的经济效益。研究成果对其他地下储气库运行上限压力和库容量定量评价具有一定参考价值。

     

  • 图  1  冀东南堡油田1-29区块馆陶组Ⅳ段②层含油气面积构造

    注:以NgIV②油层顶面构造为底图

    Figure  1.  Structural map of the NgIV② oil and gas bearing area in Block 1-29 of Nanpu Oilfield, eastern Hebei

    Note: The map is based on the top structure of the NgIV② reservoir.

    图  2  冀东南堡1-29储气库实测井下压力、温度、瞬时流量和累积流量随时间变化曲线

    Figure  2.  Time-varying curves of downhole pressure, temperature, instantaneous flow rate, and cumulative flow rate measured in Gas Storage 1-29, Nanpu Oilfield, eastern Hebei

    图  3  南堡F1断层地层压力系数与滑移指数模拟关系曲线

    Figure  3.  Plot showing the simulated relationship between formation pressure coefficient and slip index of NPF1 Fault

    表  1  冀东南堡油田1-29储气库运行上限压力评价

    Table  1.   Evaluation results of the maximum operating pressure in Gas Storage 1-29, Nanpu Oilfield, eastern Hebei

    动态密封性 破坏类型 评价方法 最大安全
    注气压力
    运行上
    限压力
    盖层拉张破坏 矿场地应力测试 ≤27.2 MPa 27.20 MPa
    盖层剪切破坏 库伦−摩尔准则 ≤30.6 MPa
    断层承载能力 断层滑移指数 ≤27.6 MPa
    下载: 导出CSV

    表  2  气层自由气库容量评价结果

    Table  2.   Evaluation results of free air capacity in gas reservoir

    断块 气层原始含气
    孔隙/×104 m3
    气层含水量/
    ×104 m3
    残余水孔隙/
    ×104 m3
    侧缘孔隙/
    ×104 m3
    有效储气孔隙/
    ×104 m3
    气体波及体积系数 库容/×108 m3
    常压22.5 MPa
    压力系数1.0
    超压27.2 MPa
    压力系数1.2
    常压22.5 MPa
    压力系数1.0
    超压27.2 MPa
    压力系数1.2
    南堡1-29 246.45 32.84 13.36 8.26 224.83 0.00454 0.00387 4.96 5.82
    南堡109 121.04 29.70 12.09 7.07 101.88 0.00454 0.00387 2.24 2.63
    合计 367.49 62.54 25.45 15.33 326.71 7.20 8.45
    下载: 导出CSV

    表  3  油层自由气库容量评价结果

    Table  3.   Evaluation results of free gas capacity in oil reservoir

    断块 油层原始含油
    孔隙/×
    104 m3
    波及系
    数/%
    气驱液
    效率/%
    含油空间
    利用率/%
    有效含气孔隙
    体积/×104 m3
    气体波及体积系数 库容/×108 m3
    常压22.5 MPa
    压力系数1.0
    超压27.2 MPa
    压力系数1.2
    常压22.5 MPa
    压力系数1.0
    超压27.2 MPa
    压力系数1.2
    南堡1-29 261.81 65 71.6 46.54 121.8 0.00454 0.00387 2.68 3.15
    南堡109 412.34 65 71.6 46.54 191.9 0.00454 0.00387 4.23 4.96
    南堡12-X66 111.31 65 71.6 46.54 61.19 0.00454 0.00387 1.35 1.58
    合计 785.45 374.94 8.26 9.69
    下载: 导出CSV
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  • 收稿日期:  2023-05-16
  • 修回日期:  2023-11-22
  • 录用日期:  2024-01-08
  • 预出版日期:  2024-02-02
  • 刊出日期:  2024-06-28

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