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Evaluation of coal structure and permeability with the aid of geophysical logging technology

机译:借助地球物理测井技术评估煤的结构和渗透性

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摘要

Coal structures and the associated permeability were studied by a combined investigation of geophysical logging data and well tests from coal reservoirs of Huainan and Huaibei coalfields in China. A large amount of the site observations on coal sections of mining faces and the macroscopic investigations on textures of drilling coal cores were carried out, providing experimental information for classification of coal structures. Geophysical log was implemented in 600 boreholes for exploration of coal and coalbed methane (CBM) resources, including 10 CBM wells which were used for permeability tests. The permeability tests were conducted by using injection/fall-off method. The results, together with the log data obtained from geophysical log technologies, have been analysed by using geological statistics, permitting correlation of the permeability of coal seams to the log responses. The correlation developed in this study provides better evaluation of coal reservoir permeability, resulting in an improved CBM exploration in the given coalfields.
机译:通过结合地球物理测井资料和中国淮南,淮北煤田煤储层的试井研究,研究了煤的构造及相关的渗透率。进行了大量的采煤工作面现场观察和对钻探煤芯结构的宏观研究,为煤结构分类提供了实验信息。在600个钻孔中进行了地球物理测井,以勘探煤炭和煤层气(CBM)资源,包括10个用于渗透率测试的CBM井。渗透率测试是通过注入/脱落法进行的。通过使用地质统计数据,对结果以及从地球物理测井技术获得的测井数据进行了分析,从而使煤层的渗透性与测井响应相关。这项研究中建立的相关性提供了更好的煤储层渗透率评估,从而改善了给定煤田的煤层气勘探。

著录项

  • 来源
    《Fuel》 |2009年第11期|2278-2285|共8页
  • 作者单位

    School of Mineral Resources and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu Province 221008, China;

    School of Mineral Resources and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu Province 221008, China;

    School of Chemical Engineering, The University of Queensland, St. Lucia, Qld 4072, Australia;

    School of Chemical Engineering, The University of Queensland, St. Lucia, Qld 4072, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coal structure; permeability; reservoir evaluation; geophysical log;

    机译:煤结构渗透性储层评价;地球物理测井;

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