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四川盆地及周缘龙马溪组页岩产气效果影响因素

王玉芳 翟刚毅 王劲铸 张云枭

王玉芳, 翟刚毅, 王劲铸, 等, 2017. 四川盆地及周缘龙马溪组页岩产气效果影响因素. 地质力学学报, 23 (4): 540-547.
引用本文: 王玉芳, 翟刚毅, 王劲铸, 等, 2017. 四川盆地及周缘龙马溪组页岩产气效果影响因素. 地质力学学报, 23 (4): 540-547.
WANG Yufang, ZHAI Gangyi, WANG Jinzhu, et al., 2017. FACTORS INFLUENCING GAS PRODUCTION EFFECTIVENESS OF LONGMAXI FORMATION SHALE IN SICHUAN BASIN AND ADJACENT AREAS. Journal of Geomechanics, 23 (4): 540-547.
Citation: WANG Yufang, ZHAI Gangyi, WANG Jinzhu, et al., 2017. FACTORS INFLUENCING GAS PRODUCTION EFFECTIVENESS OF LONGMAXI FORMATION SHALE IN SICHUAN BASIN AND ADJACENT AREAS. Journal of Geomechanics, 23 (4): 540-547.

四川盆地及周缘龙马溪组页岩产气效果影响因素

基金项目: 

国家科技重大专项项目 2016ZX05034

页岩气招标区块勘查跟踪评价项目 12120114054101

湖北秭归-长阳页岩气有利区战略调查项目 DD20179623

详细信息
    作者简介:

    王玉芳(1977-), 女, 硕士研究生, 高级工程师, 主要从事页岩气基础地质调查和战略选区调查等方面的工作.E-mail:147444819@qq.com

    通讯作者:

    翟刚毅(1958-), 男, 博士, 教授级高工, 主要从事油气及页岩气基础地质调查及资源潜力评价等方面的工作.E-mail:zhaigangyi@126.com

  • 中图分类号: TE132.2

FACTORS INFLUENCING GAS PRODUCTION EFFECTIVENESS OF LONGMAXI FORMATION SHALE IN SICHUAN BASIN AND ADJACENT AREAS

  • 摘要: 我国在四川盆地及周缘下志留统龙马溪组页岩气勘探开发中已取得一些重要发现和突破。JY1HF井、彭页1Hf、DY2HF井、南页1HF、龙参2井、保页1井等一系列针对龙马溪组的钻井及压裂改造都展现了我国南方龙马溪组页岩具备良好的勘探开发前景。本文对比分析了四川盆地及周缘多口页岩气井压后产量与储层地质条件、储层物性、地应力、构造保存及压裂施工规模等影响页岩气产能参数的相关性,总结提出了影响页岩气勘探开发效果的主要控制因素为优质页岩厚度、含气性、脆性矿物含量、孔隙度、地层压力系数和水平应力差异系数,为今后我国南方海相页岩气的高效勘探开发提供了重要的借鉴和指导。

     

  • 图  1  四川盆地及周缘龙马溪组页岩气井产气效果统计

    Figure  1.  Gas production effect statistics of longmaxi formation shale gas well in Sichuan Basin and adjacent areas

    图  2  龙马溪组优质页岩厚度与产量相关性分析

    Figure  2.  Correlation between thickness of high quatity shales and gas production in Longmaxi shale formation

    图  3  龙马溪组页岩含气量与产量相关性分析

    Figure  3.  Correlation between gas-bearing properties and gas production in Longmaxi shale formation

    图  4  龙马溪组页岩脆性矿物含量与产量相关性

    Figure  4.  Correlation between brittle mineral content and gas production in Longmaxi shale formation

    图  5  龙马溪组页岩孔隙度与产量相关性

    Figure  5.  Correlation between porosity and gas production in Longmaxi shale formation

    图  6  龙马溪组页岩地层压力系数与产量相关性

    Figure  6.  Correlation between formation pressure coefficient and gas production in Longmaxi shale formation

    图  7  龙马溪组页岩水平方向应力差异系数与产量相关性

    Figure  7.  Correlation between horizontal stress difference coefficient and gas production in Longmaxi shale formation

    图  8  龙马溪组页岩单段压裂液用量与平均单段产量相关性

    Figure  8.  Correlation between single section fracturing fluid volume and average single section production of Longmaxi shale formation

    图  9  龙马溪组页岩平均单段加砂量与平均单段产量相关性

    Figure  9.  Correlation between single section sand amount and average single section production of Longmaxi shale formation

    表  1  四川盆地及周缘典型页岩气井地质参数统计表

    Table  1.   Geological fators of tipical shale gas wells in Sichuan Basin and adjacent areas

    井号 优质页岩厚度/m TOC/% Ro/% 总含气量/(m3/t) 脆性矿物含量/% 脆性指数/% 孔隙度/% 渗透率/md 测试产量/万方
    JY1HF 38 1.625 2.65 4.64 56.5 52~60 7.70 0.024 20.3
    DY2HF 35.5 3.95 2.35 4.48 63.6 49.27 5.81 0.1425 10.5
    彭页1HF 24 2.13~4.74 2.39~2.9 2.46 74.1 60 2.87 0.045 2.3
    彭页4HF 3.50 2.0~2.8 49.69 2.68
    南页1HF 29 1.98~7.73 2.31~2.77 4.41 62.3 62 5.3 0.0524 0.2
    龙页2井 5 1.56 5.50 0.20 35.5 40 3.4 0.0001
    保页1井 10 2.03 3.34 2.50 57 67.2 0.77 0.42 0.16
    濯页1井 25 2.22 2.60 1.04 67 0.62 1.72 0.0031
    濯页2井 35 2.76 2.92 0.08 63 0.58 1.25 0.0014
    龙参2井 12 2.76~5.96 2.24~2.57 1.3~1.7 70.60 62.4 2.5 0.151 0.06
    JY2HF 40.5 3.76 3.71 5.40 42.2 4.39 0.202 34
    JY3HF 43.5 2.99 4.30 40.9 4.03 12
    JY4HF 39.5 3.67 3.11 5.50 40.5 4.9 0.5943 26
    JY5HF 43 3.15 3.75 3.56
    JY6HF 33.4 2.81 4.98 72.7 36
    JY7HF 48.2 3.02 3.77 71.7 15
    JY8HF 33.58 2.43 3.88 65.2 150
    下载: 导出CSV

    表  2  四川盆地及周缘典型页岩气井地层压力系数与产量统计表

    Table  2.   Formation pressure coefficient and gas production of typical shale gas wells in Sichuan Basin and adjacent areas

    井号 压力系数 产量/万方
    彭页3HF 0.96 3.2
    彭页4HF 0.94 1.7
    威201-H1 0.92 1.31
    威204 1.96 16.5
    宁201-H1 2.03 15
    长宁H3-1 2 7.68
    阳201-H2 2.2 43
    YSH1-1 1.15 3.56
    YS108H1-1 2 20.68
    威202 1.4 2.75
    威201 0.92 0.26
    JY1HF 1.45 20.3
    DY2HF 1.6 10.5
    彭页1HF 0.96 2.3
    南页1HF 1.5 0.2
    保页1井 1 0.16
    龙参2井 1 0.2
    下载: 导出CSV
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  • 收稿日期:  2016-06-14
  • 刊出日期:  2017-08-01

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