Version 1
: Received: 28 November 2017 / Approved: 28 November 2017 / Online: 28 November 2017 (06:51:19 CET)
Version 2
: Received: 9 May 2018 / Approved: 10 May 2018 / Online: 10 May 2018 (08:22:23 CEST)
Dong Zhao, Dayuan Li, Yulin Ma, Zengchao Feng, and Yangsheng Zhao, “Experimental Study on Methane Desorption from Lumpy Coal under the Action of Hydraulic and Thermal,” Advances in Materials Science and Engineering, vol. 2018, Article ID 3648430, 10 pages, 2018.
Dong Zhao, Dayuan Li, Yulin Ma, Zengchao Feng, and Yangsheng Zhao, “Experimental Study on Methane Desorption from Lumpy Coal under the Action of Hydraulic and Thermal,” Advances in Materials Science and Engineering, vol. 2018, Article ID 3648430, 10 pages, 2018.
Dong Zhao, Dayuan Li, Yulin Ma, Zengchao Feng, and Yangsheng Zhao, “Experimental Study on Methane Desorption from Lumpy Coal under the Action of Hydraulic and Thermal,” Advances in Materials Science and Engineering, vol. 2018, Article ID 3648430, 10 pages, 2018.
Dong Zhao, Dayuan Li, Yulin Ma, Zengchao Feng, and Yangsheng Zhao, “Experimental Study on Methane Desorption from Lumpy Coal under the Action of Hydraulic and Thermal,” Advances in Materials Science and Engineering, vol. 2018, Article ID 3648430, 10 pages, 2018.
Abstract
Moisture and thermal are the key factors for influencing methane desorption during CBM exploitation. Using high pressure water injection technology into coalbed, new fractures and pathways are formed to methane transport. It is existed a phenomenon of water inhibiting gas flow. This study is focused on various water pressures impacted on gas adsorbed coal samples, then the desorption capacity could be revealed under different conditions. And the results are shown that methane desorption capacity was decreased with water pressure increased at room temperature and the downtrend would be steady until water pressure was large enough. Heating could promote gas desorption capacity effectively, with the increasing of water injection pressures, the promotion of thermal on desorption became more obvious. These results are expected to provide a clearer understanding of theoretical efficiency of heat water or steam injection into coalbed, they can provide some theoretical and experimental guidance on CBM production and methane control.
Keywords
methane; desorption; hydraulic; thermal; high pressure water injection
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
