Construction and application of feasibility evaluation model for gas extraction in goafs of abandoned coal mines

Authors

YANG Ming, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Jiaozuo 454003, China; State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Jiaozuo 454003, ChinaFollow
ZHU Lin, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaFollow
QUAN Xingyuan, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
XU Jing, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
LIU Maomao, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
ZHANG Tao, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China

Abstract

Against the background of carbon neutrality and carbon peaking policy, the development of gas resources in abandoned coal mines can generate high resource, economic and environmental benefits. The evaluation index system is established through field research and literature review from technical feasibility and economic rationality aspects. The game theory-fuzzy comprehensive evaluation model is established by combining the weighting method of game theory with the fuzzy comprehensive evaluation method. The abandoned Gushuyuan Mine is used as an example to verify the rationality of the evaluation model. The weights of gas resource conditions and gas preservation conditions in the first-level indicators are as high as 0.4391 and 0.3836, indicating that coal mine gas storage and air tightness are the decisive factors influencing the feasibility of gas drainage in the goaf of abandoned coal mines. Among the secondary indicators, the weights of methane concentration of the ground borehole and the water inflow of the mine are as high as 0.091 and 0.087, indicating that the gas purity and the severity of water damage in the gas-rich areas of the abandoned coal mine goaf are the key factors affecting the feasibility of gas drainage. The established evaluation model corrects the weight distortion caused by the single weighting evaluation method, and it has the advantages of subjective and objective weight determination methods. The rationality of the game theory-fuzzy comprehensive evaluation model is proved.

Keywords

gas extraction, feasibility evaluation model, fuzzy comprehensive evaluation, game theory, goaf, abandoned coal mine

DOI

10.12363/issn.1001-1986.21.11.0686

Recommended Citation

YANG Ming, ZHU Lin, QUAN Xingyuan, et al. (2022) "Construction and application of feasibility evaluation model for gas extraction in goafs of abandoned coal mines," Coal Geology & Exploration: Vol. 50: Iss. 7, Article 14.
DOI: 10.12363/issn.1001-1986.21.11.0686
Available at: https://cge.researchcommons.org/journal/vol50/iss7/14

Reference

[1] 谢和平,高明忠,刘见中,等. 煤矿地下空间容量估算及开发利用研究[J]. 煤炭学报,2018,43(6):1487−1503. XIE Heping,GAO Mingzhong,LIU Jianzhong,et al. Research on exploitation and volume estimation of underground space in coal mines[J]. Journal of China Coal Society,2018,43(6):1487−1503.

[2] 袁亮. 我国煤炭工业高质量发展面临的挑战与对策[J]. 中国煤炭,2020,46(1):6−12. YUAN Liang. Challenges and countermeasures for high quality development of China’s coal industry[J]. China Coal,2020,46(1):6−12.

[3] 袁亮. 关闭煤矿资源开发利用迫在眉睫[J]. 新能源经贸观察,2018(7):50. YUAN Liang. Closing the development and utilization of coal resources is imminent[J]. Energy Outlook,2018(7):50.

[4] 袁亮. 我国煤炭资源高效回收及节能战略研究[M]. 北京：科学出版社，2017.

[5] 桑树勋，周效志. 中国煤炭资源枯竭矿井煤层气(瓦斯)资源[C]//第十四届国际煤层气暨页岩气研讨会. 北京，2014.

[6] QIN Wei,XU Jialin,HU Guozhong. Optimization of abandoned gob methane drainage through well placement selection[J]. Journal of Natural Gas Science and Engineering,2015,25:148−158.

[7] 孙欣，金铃. 中国报废矿井瓦斯抽放与利用前景[C]//第三届国际煤层气论坛. 北京，2002.

[8] 郭庆勇,张瑞新. 废弃矿井瓦斯抽放与利用现状及发展趋势[J]. 矿业安全与环保,2003,30(6):23−26. GUO Qingyong,ZHANG Ruixin. Present state and development trend of gas drainage and utilization from abandoned mine[J]. Mining Safety & Environmental Protection,2003,30(6):23−26.

[9] 崔永君. 废弃矿井瓦斯:值得关注的煤层气资源[J]. 中国煤层气,2005,2(3):27−31. CUI Yongjun. Abandoned coal mine methane:A noteworthy CBM resource[J]. China Coalbed Methane,2005,2(3):27−31.

[10] KARACAN C Ö,WARWICK P D. Assessment of coal mine methane (CMM) and abandoned mine methane (AMM) resource potential of longwall mine panels:Example from northern Appalachian Basin,USA[J]. International Journal of Coal Geology,2019,208:37−53.

[11] YOUNGER P L. Abandoned coal mines:From environmental liabilities to low–carbon energy assets[J]. International Journal of Coal Geology,2016,164:1−2.

[12] 孟召平,师修昌,刘珊珊,等. 废弃煤矿采空区煤层气资源评价模型及应用[J]. 煤炭学报,2016,41(3):537−544. MENG Zhaoping,SHI Xiuchang,LIU Shanshan,et al. Evaluation model of CBM resources in abandoned coal mine and its application[J]. Journal of China Coal Society,2016,41(3):537−544.

[13] 李袭明,桑逢云,孙路路,等. 废弃矿井瓦斯资源量评估方法及其应用[J]. 矿业研究与开发,2019,39(4):101−104. LI Ximing,SANG Fengyun,SUN Lulu,et al. Assessment method and application of gas resources in abandoned mine[J]. Mining Research and Development,2019,39(4):101−104.

[14] 彭金刚. 鸡西、鹤岗矿区封闭采空区煤层气资源评价[D]. 徐州：中国矿业大学，2017.

PENG Jingang. Resource evaluation of closed gob CBM (coalbed methane) in Hegang and Jixi mining area[D]. Xuzhou：China University of Mining and Technology，2017.

[15] 韩保山. 废弃矿井煤层气资源开发潜力评价方法研究[D]. 北京：煤炭科学研究总院，2003.

HAN Baoshan. Research on evaluation method of CBM resources development potential in abandoned mines[D]. Beijing：China Coal Research Institute，2003.

[16] 李树刚,程皓,潘红宇,等. 崔家沟煤矿采空区瓦斯抽采效果评价模型[J]. 西安科技大学学报,2020,40(1):11−17. LI Shugang,CHENG Hao,PAN Hongyu,et al. Evaluation model of gas drainage effect in goaf of Cuijiagou coal mine[J]. Journal of Xi’an University of Science and Technology,2020,40(1):11−17.

[17] 贾志超,黄华州,黄绍博,等. 基于AHP–熵权法的采动区煤层气开发潜力评价[J]. 煤田地质与勘探,2021,49(2):117−124. JIA Zhichao,HUANG Huazhou,HUANG Shaobo,et al. Evaluation of the development potential of the coalbed methane resources in mining area based on AHP–entropy method[J]. Coal Geology & Exploration,2021,49(2):117−124.

[18] 朱文侠,姜在炳,赵格兰,等. 基于主成分分析法和熵值法的煤层气开采剩余资源量评价[J]. 煤矿安全,2019,50(5):162−167. ZHU Wenxia,JIANG Zaibing,ZHAO Gelan,et al. Evaluation of residual resources of coalbed methane exploitation based on principal component analysis and entropy method[J]. Safety in Coal Mines,2019,50(5):162−167.

[19] 杨靖,陈飞,胡广青,等. 煤田地质勘探钻孔瓦斯突出危险性评价[J]. 煤田地质与勘探,2011,39(3):14−18. YANG Jing,CHEN Fei,HU Guangqing,et al. Research on gas outburst proneness evaluation of coal geological exploration boreholes[J]. Coal Geology & Exploration,2011,39(3):14−18.

[20] 冯玉龙,周林元,王乾,等. 基于多层次模糊数学法的煤层气井产能综合评价模型[J]. 煤田地质与勘探,2021,49(2):125−132. FENG Yulong,ZHOU Linyuan,WANG Qian,et al. Multi–level fuzzy mathematics−based comprehensive evaluation model of CBM well productivity[J]. Coal Geology & Exploration,2021,49(2):125−132.

[21] 李树刚,穆丹丹,曹杰. 利用层次分析法确定本质安全型矿井指标权重[J]. 西安科技大学学报,2009,29(2):127−130. LI Shugang,MU Dandan,CAO Jie. Index system of intrinsic safe coal mines based on analytical hierarchy process[J]. Journal of Xi’an University of Science and Technology,2009,29(2):127−130.

[22] 黄萍,徐晶晶. 基于熵权物元可拓模型的煤矿透水安全评价[J]. 安全与环境工程,2017,24(6):144−148. HUANG Ping,XU Jingjing. Safety evaluation for coal mine flooding based on the extension model of entropy–weight and matter–element[J]. Safety and Environmental Engineering,2017,24(6):144−148.

[23] 曾韬. 基于博弈论综合权重法与灰色模糊理论相结合的组合评估模型研究[D]. 兰州：兰州大学，2018.

ZENG Tao. Research on combination evaluation model based on game theory integrated weight method and grey fuzzy theory[D]. Lanzhou：Lanzhou University，2018.

[24] 胡永宏，贺思辉. 综合评价方法[M]. 北京：科学出版社，2000.

[25] 郭齐胜，杨秀月，王杏林，等. 系统建模[M]. 北京：国防工业出版社，2006.

[26] 苗成林,孙丽艳,杨力. 基于多级模糊综合评价法的煤矿企业应急能力评价研究[J]. 中国安全生产科学技术,2013,9(11):103−108. MIAO Chenglin,SUN Liyan,YANG Li. Evaluation on emergency capability of coal mining enterprises based on multilevel fuzzy comprehensive evaluation method[J]. Journal of Safety Science and Technology,2013,9(11):103−108.