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Determining Coalbed Methane Production and Composition from Individual Stacked Coal Seams in a Multi-Zone Completed Gas Well

Author

Listed:
  • Nino Ripepi

    (Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA
    Virginia Center for Coal and Energy Research Center, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA)

  • Kyle Louk

    (Virginia Center for Coal and Energy Research Center, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA)

  • Joseph Amante

    (Virginia Center for Coal and Energy Research Center, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA)

  • Charlies Schlosser

    (Virginia Center for Coal and Energy Research Center, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA)

  • Xu Tang

    (Virginia Center for Coal and Energy Research Center, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA)

  • Ellen Gilliland

    (Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA
    Virginia Center for Coal and Energy Research Center, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA)

Abstract

This work proposes a novel and cost-effective approach to determine coalbed methane (CBM) production and composition from individual coal seams in a multi-zone completed CBM well. The novel method uses water to cover individual coal seams in a low pressure CBM well followed by an Echometer fluid level survey to determine the water level. Corresponding gas flow measurements and natural gas chromatography analysis are used to determine gas production and composition from unique zones. A field test using this technology is conducted in Central Appalachia for a multi-zone CBM well containing 18 coal seams. Test results show that the shallow coal seams contribute the majority of the total CBM production in this multi-zone well, and the deeper coal seams contain more heavy hydrocarbons like ethane and propane.

Suggested Citation

  • Nino Ripepi & Kyle Louk & Joseph Amante & Charlies Schlosser & Xu Tang & Ellen Gilliland, 2017. "Determining Coalbed Methane Production and Composition from Individual Stacked Coal Seams in a Multi-Zone Completed Gas Well," Energies, MDPI, vol. 10(10), pages 1-8, October.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:10:p:1533-:d:113939
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    Citations

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    Cited by:

    1. Lingling Lu & Chen Guo & Zhenlong Chen & Hang Yuan, 2022. "Quantitative Identification of Water Sources of Coalbed Methane Wells, Based on the Hydrogen and Oxygen Isotopes of Produced Water—A Case of the Zhijin Block, South China," Energies, MDPI, vol. 15(24), pages 1-19, December.
    2. Jie Wu & Chen Guo & Shuxun Sang & Guofu Li, 2022. "Geochemical Characteristics of Water Produced from Coalbed Methane Wells in the Southern Qinshui Basin and Construction of an Associated Model: Implications for Coalbed Methane Co-Production," Energies, MDPI, vol. 15(21), pages 1-15, October.
    3. Li, Jiawei & Sun, Chenhao, 2022. "Molecular insights on competitive adsorption and enhanced displacement effects of CO2/CH4 in coal for low-carbon energy technologies," Energy, Elsevier, vol. 261(PB).

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