孙斌,鞠玮,杨敏芳,杨兆彪,刘洪林,王胜宇

• 1:中国石油勘探开发研究院
• 2:中国矿业大学资源与地球科学学院

摘要(Abstract)：

现今地应力分布与煤储层渗透性特征是影响煤层气勘探与开发效果的关键因素,但对滇东北地区二叠系煤储层而言,区域地应力与渗透性分布样式尚不清晰,影响着该区煤层气的高效开发。为此,本次研究在注入/压降地应力实测的基础上,利用有限元数值模拟分析了滇东北地区二叠系C5煤层现今地应力分布特征,结果显示:地应力分布呈现强非均质性特点,研究区北部和东南部的应力值较高,西部、东部以及构造带内的应力值较低。在地应力与渗透率量化关系构建的基础上,预测了煤储层渗透率,呈现东西高、南北低的格局。研究区内现今地应力对煤储层渗透性具有一定的控制作用,亦受埋藏深度等其他因素影响。研究成果期望能为滇东北地区煤层气勘探开发提供有益地质参考。

关键词(KeyWords)： 现今地应力;煤层气;渗透性;滇东北地区

Abstract:

Keywords:

基金项目(Foundation): 中国石油股份公司超前基础研究项目“蜀南构造复杂区煤层气成藏主控因素与目标优选”(2019B-4910)

作者(Author): 孙斌,鞠玮,杨敏芳,杨兆彪,刘洪林,王胜宇

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