Three Region Linkage Three-Dimensional Gas Drainage Theory and Mode of Coal Bed Methane in Coal Mining Area
Abstract：In order to realize the safety and high efficient coordinative development of coal and coal bed methane resources in the coal mining area, based on the time and space replacing law of the coal development, the coal mining area was divided into three regions, in- cluding the planning region, preparation region and production region. The gas drainage with the surface drilling wells, the combined drainage with the surface and underground boreholes, the gas drainage in the mining seam and different gas drainage technology were indi- vidually applied to ensure the safety and high efficient coal production. According to the mathematics model of the max gas content allowed by the coal mine production, the numerical model of the seam gas pressure and the optimized experts system of the coal bed methane drainage, a regional progressive three-dimensional gas drainage model (Jincheng Mode) of three region linkage was created. The recovery rate of the coal resources was improved, an effective connection of the industrial models with the underground mine gas drainage and the surface in-place gas drainage could be realized and the time and space contradiction between the coal bed methane development and the coal mining was solved.
Keywords：coal mining areacoal bed methanethree-dimensional gas drainageplanning regionpreparation regionproduction re-gionthree region linkage
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 7-11 )