煤矿区煤与煤层气协调开发模式的探讨——以晋城矿区为例

摘要

矿区煤层气与煤炭协调开发是资源安全高效利用的方向,结合晋城矿区生产、借助SBM-SIM储层模拟技术和工程实践,从制约煤与煤层气协调开发的影响因素出发,选取含气量(q)、瓦斯压力(P)、采收率(Rf)三个指标,借助SBM-SIM储层数值模拟技术和工程开发实践,对三个指标的界限值进行了限定,初步提出了矿区煤与煤层气协调开发模式；将煤矿划分为规划区、生产区、采空区,规划区以地面煤层气开发为主,生产区以边抽边掘、边抽边采为主,并严格实施《防治煤与瓦斯突出规定》,采空区抽采以降低采煤工作面和巷道瓦斯浓度为目的；该模式适合于构造条件简单、煤体结构较好的矿区.%Coal and CBM coordinated exploitation in coalmine areas is the orientation of resource security and high efficiency utilization, combined with production in the Jincheng mining area, in virtue of SBM-SIM reservoir simulation technology and engineering practice, start from coal and CBM coordinated exploitation restraints, selected three indices of gas content (q), gas pressure (P) and recovery (Rf), with the help of SBM-SIM reservoir simulation technology and engineering exploitation practices, restricted threshold values of the three indices, preliminarily bring forward mine area coal and CBM coordinated exploitation mode. Dividing coalmine into planning area, production area and mined area; the planning area exploits mainly CBM on the surface, production area is draining while driving and winning, and executing the "Coal and Gas Outburst Prevention Provisions" strictly to the letter, while mined area is draining to lower down gas concentration in coal faces and roadways. The mode is propitious to mine areas with simple structural condition and good texture of coal mass.