Systematic Division of Coalbed Methane-Enriched Units
International Journal of Oil, Gas and Coal Engineering
Volume 5, Issue 1, January 2017, Pages: 5-12
Received: Jan. 23, 2017; Accepted: Feb. 7, 2017; Published: Mar. 2, 2017
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Authors
Zhang Qinghua, College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao, China; State Key Laboratory of Gas Disaster Monitoring and Emergency Technologies, Chongqing, China; China Coal Technology Engineering Group Chongqing Research Institute, Chongqing, China
Zhao Xusheng, State Key Laboratory of Gas Disaster Monitoring and Emergency Technologies, Chongqing, China; China Coal Technology Engineering Group Chongqing Research Institute, Chongqing, China
Wang Qixiang, State Key Laboratory of Gas Disaster Monitoring and Emergency Technologies, Chongqing, China; China Coal Technology Engineering Group Chongqing Research Institute, Chongqing, China
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Abstract
Division of coalbed methane (CBM)-enriched units primarily depends on the analysis of the main controlling factors of CBM occurrence. The main controlling factors analyzed in this article are sedimentary sequences related to the forming and alteration of CBM, tectonic movement, and burial and hydrocarbon-generation histories. The parameters were measured for independent quantities such as CBM content, gradient, coefficient of extraction difficulty and geological structure complexity. Correlation analysis was conducted between the measured parameters of CBM-bearing systems and the main controlling factors. When the controlling factors are sedimentary sequences and the sedimentary systems tract, the division of CBM-enriched units is based on the coal-forming environment, coal mass distribution and coal characteristics. When the controlling factor is the tectonic matching between the orefield, mining area and mining wells, the division of CBM-enriched units is based on tectonic movement. When burial and hydrocarbon-generation histories are the controlling factors, the division of CBM-enriched units is based on metamorphic traits.
Keywords
Coalbed Methane, Geological Unit Division, Sedimentary Sequence, Tectonic Movement, Coal Grade
To cite this article
Zhang Qinghua, Zhao Xusheng, Wang Qixiang, Systematic Division of Coalbed Methane-Enriched Units, International Journal of Oil, Gas and Coal Engineering. Vol. 5, No. 1, 2017, pp. 5-12. doi: 10.11648/j.ogce.20170501.12
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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