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首页> 外文会议>The 6th international conference on mining science amp; technology (ICMST2009) >Geological controls over coal-bed methane well production in southern Qinshui basin
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Geological controls over coal-bed methane well production in southern Qinshui basin

机译：沁水盆地南部煤层气井生产的地质控制

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摘要

Southern Qinshui basin is the only area where coal-bed methane (CBM) in anthracitic reservoir is developed in large scale, making the research on development geology an urgent task. The results of tracking geological research on developing engineering of coal-bed methane show that 1) geological structure, tectonic stress field, and coal reservoir pressure control regional changes in productivity; 2) high productivity wells in research area distribute in the secondary anticline core synclinorium while low productivity wells mainly distribute in secondary anticline core of anticlinorium or normal fault zone; 3) primary reservoir pressure has a remarkable effect on coal-bed methane well production; and 4) tectonic stress fields determine development of folds and closure of fractures and control gas content and permeability of coal. The coal reservoir structure is the basic factor affecting productivity of coal-bed methane wells while gas content and permeability are direct geological factors controlling coalbed methane well production. In addition, factors of desorption, diffusion, and seepage network related to reservoir structure determine the development difficulty.
机译：沁水盆地南部是唯一一个大规模开发无烟煤储层中煤层气的地区，这使得开发地质研究成为当务之急。煤层气开发工程的跟踪地质研究结果表明：1）地质构造，构造应力场和储层压力控制了产能的区域变化； 2）研究区的高产井分布在次生背斜岩心向斜斜背中，而低产井则主要分布在抗气候层或正常断层带的次生背斜岩心中； 3）一次储层压力对煤层气井产量有显着影响； 4）构造应力场决定了褶皱的形成和裂缝的闭合，并控制了煤的瓦斯含量和渗透率。煤储层结构是影响煤层气井产能的基本因素，而瓦斯含量和渗透率是控制煤层气井产量的直接地质因素。此外，与储层结构有关的解吸，扩散和渗流网络因素决定了开发难度。

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  • 来源
  • 会议地点 Xuzhou(CN);Xuzhou(CN)
  • 作者

    Sang Shu-xun; Liu Hui-hua; Li Yang-min; Li Meng-xi; Li Lin;

  • 作者单位

    School of Mineral Resource and Geoscience, China University of Mining and Technology, Key Laboratory of CBM Resources and Reservoir Formation Process(CUMT),State Ministry of Education, Xuzhou 221116, China;

    School of Mineral Resource and Geoscience, China University of Mining and Technology, Key Laboratory of CBM Resources and Reservoir Formation Process(CUMT),State Ministry of Education, Xuzhou 221116, China;

    Shanxi Coalbed Methane Branch of Huabei Oilfield Company, Jincheng 048000, China;

    Shanxi Coalbed Methane Branch of Huabei Oilfield Company, Jincheng 048000, China;

    aSchool of Mineral Resource and Geoscience, China University of Mining and Technology, Key Laboratory of CBM Resources and Reservoir Formation Process(CUMT),State Ministry of Education, Xuzhou 221116, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 矿业工程;
  • 关键词

    geological control; gas production; coal-bed methane well; Qinshui basin;

    机译：地质控制;产气;煤层气井;沁水盆地;

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