首页|A review of coal permeability models including the internal swelling coefficient of matrix

A review of coal permeability models including the internal swelling coefficient of matrix

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Coal bed methane(CBM),the high-quality and efficient fuel,has caught the interest of many nations as they strive for environmentally friendly development.Therefore,the efficient exploitation and utilization of CBM has become one of the international focal research problems.A significant factor affecting the mining of CBM is coal permeability.To better capture the changes that occur during the extraction of CBM,the internal swelling coefficient of matrix(ISCM)has been gradually in permeability introduced into the permeability models,and such models have become an important type of the development of permeability models.The goal is to find out more precisely the evolution mechanism of the ISCM and its influence on the permeability models.In this paper,the selection of coal structure,determination of boundary conditions and influencing factors of permeability for were first analyzed.Then,according to the research process of ISCM,the permeability models including the ISCM were reviewed and divided into four phases:proposal phase,development phase,evaluation phase and display of internal structure phase.On the basis of the ISCM values in the current coal permeability models,the primary influencing factors and evolutionary laws of the ISCM are explored.The results obtained provide guidance for future theo-retical refinement of permeability models with the ISCM.

Permeability modelInternal swelling coefficient of matrixMatrix-fracture interactionMatrix expansion deformation

Shouqing Lu、Jiang Shi、Lei Jiao、Yankun Ma、Wei Li、Zhanyou Sa、Jie Liu、Taibiao Bei、Shengcheng Wang

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Department of Safety Engineering,Qingdao University of Technology,Qingdao 266520,China

Department of Safety Engineering,Key Laboratory of Safe and Effective Coal Mining(Anhui,Ministry of Education University of Science and Technology),Huainan 232001,China

Qingdao Sinotrans Logistics Co.,Ltd.,Qingdao 266520,China

Faculty of Safety Engineering,China University of Mining &Technology,Xuzhou,China

School of Civil Engineering,Xuzhou University of Technology,Xuzhou 221018,China

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2024

10.1007/s40789-024-00701-0

国际煤炭科学技术学报(英文)

国际煤炭科学技术学报(英文)

CSTPCD
ISSN：2095-8293
年,卷(期)：2024.11(4)