Research on Key Technologies for the Layout of Coalbed Methane Wells in Mining Areas
In the process of coal mining,the strata movement creats a large number of fractures that can serve as flow channels for gas.The placement of coalbed methane wells in the appropriate location of mining areas can en-sure the effect of coalbed methane development.This paper combines the law of the strata movement during coal mining to focuse on the key factors of the layout of coalbed methane wells in mining areas.The paper first analyzes the optimization mechanism of the favorable areas of coalbed methane enrichment during mining,then analyzes the deformation mechanism of coalbed methane wells in the mining process,and finally discusses the layout of coalbed methane wells.The findings indicate that coalbed methane wells in mining areas should be arranged on the side of the return air roadway and the area between the connection line of surface subsidence inflection points and the cen-ter line of the stope,and that the well drilling should adopt secondary and tertiary structures in order to maintain the stability of coalbed methane wells.
Mining areaCoalbed methane developmentStrata movementCoalbed methane well
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