Volume 45 Issue 6
Dec.  2017
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LEI Wenjie, LEI Jianwei, YANG Hongmin, WANG Zhaofeng. Borehole gas pressure build-up to evaluate the permeability of coal seam[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(6): 28-33. DOI: 10.3969/j.issn.1001-1986.2017.06.005
Citation: LEI Wenjie, LEI Jianwei, YANG Hongmin, WANG Zhaofeng. Borehole gas pressure build-up to evaluate the permeability of coal seam[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(6): 28-33. DOI: 10.3969/j.issn.1001-1986.2017.06.005
shu

Borehole gas pressure build-up to evaluate the permeability of coal seam

  • 1. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China;

  • 2. State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454000, China;

  • 3. Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region, Henan Province, Jiaozuo 454000, China

Funds: 

National Natural Science Foundation of China(51374094)

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  • Received Date: November 15, 2016
  • Published Date: December 24, 2017
    Graphical Abstract
    • Abstract
  • The permeability of coalbed benefits the right evaluation of gas drainage capability, which could be used to select the suitable technique to increase the permeability and drainage effect. The permeability of coalbed is evaluated referring to the theory and experience of gas pressure build-up in the well testing. The gas flow model appropriate to the underground coal mine has been set up. The starting point of radial flow in the pressure build-up curve could be designated rationally using the double and half logarithmic pressure build-up curves with the analytic method of half logarithmic straight line. Therefore the slope of the interim radial flow section and the permeability of the coalbed could be determined accurately. After the verification and comparison with the result of in-situ examples by the radial flow method, the relative error of the five examples was between 13% and 36.6% and the average was lower than 24.62%. So the permeability of coalbed by the borehole gas pressure build-up curve is practical.
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    • References (14)
  • [1]
    周世宁,林柏泉. 煤层瓦斯赋存与流动理论[M]. 北京:煤炭工业出版社,1997:11-17.
    [2]
    蒋承林. 煤层透气性系数测定方法的研究[J]. 中国矿业学院学报,1988,13(2):80-86.

    JIANG Chenglin. Study on measurement method of permeability coefficient of coal seam[J]. Journal of China University of Mining and Technology,1988,13(2):80-86.
    [3]
    刘明举,何学秋. 煤层透气性系数的优化计算方法[J]. 煤炭学报,2004,29(1):74-77.

    LIU Mingju,HE Xueqiu. Optimistic calculation method of gas seepage coefficients[J]. Journal of China Coal Society,2004, 29(1):74-77.
    [4]
    刘明举,刘彦伟. 煤层透气系数计算问题分析[J]. 煤炭科学技术,2004,32(2):59-61.

    LIU Mingju,LIU Yanwei. Analysis of coal seam gas permeability coefficient[J]. Coal Science and Technology,2004,32(2):59-61.
    [5]
    赵培华,刘曰武,鹿倩,等. 煤层气测试方法的分析评价[J]. 油气井测试,2010,19(6),12-18.

    ZHAO Peihua,LIU Yuewu,LU Qian. Analysis and evaluation of test methods of coalbed methane[J]. Journal of Oil and Gas Reservoir Testing,2010,19(6):12-18.
    [6]
    姚艳芳,李新春,贾江丽,等. 煤层气井DST与注入/压降测试对比分析[J]. 油气井测试,2000,9(1):60.

    YAO Yanfang,LI Xinchun,JIA Jiangli,et al. Comparative analysis of DST and injection/pressure drop test in coalbed gas well[J]. Journal of Oil and Gas Reservoir Testing,2000,9(1):60.
    [7]
    童宪章. 压力恢复曲线在油、气田开发中的应用[M]. 北京:石油工业出版社,1977:1-8.
    [8]
    Horner D R. Pressure build-up in wells[C]//World Petroleum Congress,1951.
    [9]
    EHLIG-ECONOMIDES C A. Pressure build-up for wells produced at a constant pressure[J]. Society of Petroleum Engineers Journal,1981,21(1):105-114.
    [10]
    张占存. 压力恢复曲线测定煤层瓦斯赋存参数的试验研究[J]. 煤炭学报,2012,37(8):1310-1314.

    ZHANG Zhancun. Experimental study on gas occurrence parameters of coal seam by pressure recovery curve[J]. Journal of China Coal Society,2012,37(8):1310-1314.
    [11]
    傅永帅. 用压力恢复曲线分析煤层气渗流性的研究[C]//中国矿物岩石地球化学学会. 中国矿物岩石地球化学学会第14届学术年会论文摘要专辑. 贵阳:2013.
    [12]
    王昭. 钻孔瓦斯径向流动的煤层透气性计算方法[D]. 焦作:河南理工大学,2014.
    [13]
    [美]阿曼纳特U.乔德瑞. 油井试井手册[M]. 张继红,译. 北京:石油工业出版社,2008:238-239.
    [14]
    刘能强. 实用现代试井解释方法[M]. 第五版. 北京:石油工业出版社,2008:28-35.
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