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渤海湾盆地歧口凹陷滨海-港西断层垂向封堵性评价研究

张雨健 王延斌

张雨健, 王延斌. 渤海湾盆地歧口凹陷滨海-港西断层垂向封堵性评价研究[J]. 矿业科学学报, 2022, 7(1): 45-54. doi: 10.19606/j.cnki.jmst.2022.01.005
引用本文: 张雨健, 王延斌. 渤海湾盆地歧口凹陷滨海-港西断层垂向封堵性评价研究[J]. 矿业科学学报, 2022, 7(1): 45-54. doi: 10.19606/j.cnki.jmst.2022.01.005
Zhang Yujian, Wang Yanbin. Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin[J]. Journal of Mining Science and Technology, 2022, 7(1): 45-54. doi: 10.19606/j.cnki.jmst.2022.01.005
Citation: Zhang Yujian, Wang Yanbin. Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin[J]. Journal of Mining Science and Technology, 2022, 7(1): 45-54. doi: 10.19606/j.cnki.jmst.2022.01.005

渤海湾盆地歧口凹陷滨海-港西断层垂向封堵性评价研究

doi: 10.19606/j.cnki.jmst.2022.01.005
基金项目: 

国家科技重大专项 2017ZX05064003

国家科技重大专项 2016ZX05066001-002

详细信息
    作者简介:

    张雨健(1997—),男,安徽安庆人,硕士研究生,主要从事石油及天然气勘探方面的研究工作。Tel:13146635233,E-mail:13146635233@163.com

  • 中图分类号: TE132

Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin

  • 摘要: 为实现对断层垂向封堵性的定量化评价,本文以歧口凹陷滨海-港西断层为例,依据钻井、测井、三维地震等相关资料,建立了基于侧向封堵系数的地质模型。通过计算断层的侧向断-储排替压差,并将断层周边钻井侧向封堵能力强弱与表征垂向封堵的泥岩涂抹法相耦合,得出滨海-港西断层临界泥岩涂抹系数值为6.2,依此定量化的评价得出滨海-港西断层上古生界地层垂向封堵性,并加以验证。结果表明:滨海-港西断层上古生界整体垂向封堵性好,北西段与中段部分区段垂向封堵性差。研究结果对构造背景复杂的研究区油气勘探具有指导与借鉴意义。
  • 图  1  歧口凹陷构造单元划分图(据中石油大港研究院)

    Figure  1.  Division map of structure in Qikou Sag(Revised from PetroChina Dagang Research Institute)

    图  2  北大港上古生界底界构造

    Figure  2.  Tectonic map of the upper paleozoic bottom boundary of Beidagang

    图  3  基于侧向封堵系数的排替压力计算地质模型

    Figure  3.  Geological model of displacement pressure calculation based on lateral plugging coefficient

    图  4  歧口凹陷岩石排替压力与埋深、泥质含量的拟合曲线

    Figure  4.  Fitting curve diagram of rock displacement pressure, burial depth and shale content in Qikou Sag

    图  5  滨海-港西断层上古生界断距-埋深变化

    Figure  5.  Upper paleozoic fault distance-burial depth change map of Binhai-Gangxi fault

    图  6  滨海-港西断层上古生界泥岩涂抹系数F统计

    Figure  6.  Statistical graph of smear coefficient F of upper paleozoic mudstone in Binhai-Gangxi fault

    图  7  滨海-港西断层上古生界垂向封堵评价

    Figure  7.  Evaluation map of the upper paleozoic vertical plugging of the Binhai-Gangxi fault

    图  8  北大港上古生界相关油藏勘探剖面

    Figure  8.  Exploration profile of related oil reservoirs in the upper Paleozoic of Beidagang

    表  1  港西-滨海断层上古生界侧向封堵性评价

    Table  1.   Upper paleozoic lateral sealability evaluation table of Binhai-Gangxi fault

    井位 埋深/m 储集层泥质含量/% 储层排替压力/MPa 断层岩泥质含量/% 断层岩排替压力/MPa A点埋深/m 断-储压差/MPa 测井解释
    T7X1 1 880 11.44 0.555 26.58 1.099 989 0.544
    T9 2 970 20.25 2.228 44.11 3.944 1 470 1.716 致密层
    F7 2 576 18.79 1.661 42.99 3.297 1 329 1.636 干层
    T12 1 914 8.92 0.406 15.35 0.331 734 -0.075 水层
    T6 2 792 7.75 0.559 18.69 0.534 844 -0.025 水层
    G87 1 970 11.17 0.572 22.86 0.453 615 -0.119 油浸
    G13 1 789 13.66 0.659 25.34 0.624 695 -0.035 油斑
    G59 1 988 10.53 0.535 30.13 1.996 1 330 1.461
    H1605 2 098 22.18 1.575 48.54 3.570 1 245 1.995 干层
    G148 1 873 22.24 1.356 43.29 2.173 983 0.817 致密层
    G144 1 924 16.77 0.960 45.12 2.632 1 078 1.672 油斑
    H1603 1 765 19.48 1.046 28.74 2.014 1 403 0.968 致密层
    H4-1 1 851 20.13 1.166 52.17 2.553 914 1.387 致密层
    G3 2 125 11.43 0.654 31.22 1.424 1 011 0.770
    T5 2 280 7.84 0.432 24.65 0.559 877 0.127 水层
    H1505 2 315 10.22 0.631 28.23 0.834 936 0.203 干层
    T4 1 970 13.50 0.739 27.88 1.770 1 320 1.031 干层
    H1-1 1 778 18.19 0.963 43.43 1.731 1 149 0.768 油层
    H1501 2 286 21.37 1.682 48.38 2.955 1 093 1.273 油层
    S71-1 3 196 10.13 0.964 30.46 2.605 1 588 1.641 煤层
    T10 2 586 14.13 1.135 37.77 2.737 1 326 1.602 油浸
    Z1502 2 674 12.49 1.005 32.21 2.094 1 287 1.089 干层
    H1503 2 564 18.16 1.576 41.22 3.429 1 425 1.853 干层
    T14 2 712 17.42 1.608 23.21 0.812 914 -0.796 水层
    S6 3 160 15.17 1.640 21.32 0.963 1 123 -0.677 水层
    S5 3 722 21.36 3.249 29.45 3.062 1 841 -0.187 水层
    B31 4 560 9.91 1.514 24.34 2.813 2 098 1.299
    下载: 导出CSV

    表  2  临界排替压差与测井解释的垂向封堵关系

    Table  2.   Relationship between critical displacement pressure difference and vertical pluggability of logging interpretation

    侧向断-储排替压差/MPa 测井解释 垂向封堵性
    >0.127 显水层 不封堵
    油、致密层 封堵
    干层 未知
    <0.127 显水层 未知
    干层 未知
    下载: 导出CSV

    表  3  邻近层位的测井解释与垂向封堵关系

    Table  3.   Relation ship between logging interpretation and vertical plugging of adjacent horizons

    井位 埋深/m 测井解释 垂向封堵性
    F7 2 552.6 致密层 封堵
    G87 1 946 油层 封堵
    G13 1 795.4 致密层 封堵
    H1605 2 114.3 油气层 封堵
    H1505 2 338 差油层 封堵
    Z1502 2 648 致密层 封堵
    H1503 2 503 油层 封堵
    S5 封堵
    B31 4 560 水层 不封堵
    S6 3 166 水层 不封堵
    下载: 导出CSV
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  • 收稿日期:  2021-06-18
  • 修回日期:  2021-10-15
  • 刊出日期:  2022-02-01

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