Development and Application of APP Intelligent System of Coal Seam Gas Extraction Information
Gas extraction is the main technical means of coal mine gas governance.Numerical simulation is an important basis for guiding the selection of gas extraction methods and evaluating the effect of gas extraction.However,the traditional modeling process and the required mathematical models are very complex,resulting in most simulation software not being widely available.Therefore,based on COMSOL software,an APP intelligent system of gas extraction information was developed with comprehensive consideration of coal seam parameters and gas parameters.The results show that the error between the ordinary borehole flow by numerical simulation of APP intelligent system and measured data is 7.7％,and the error between the borehole flow of hydraulic caving and measured data is 4.9％.The attenuation law of borehole flow is basically consistent with the actual situation,which indicates the correctness of the parameter optimization and the reliability of the numerical simulation method of the APP intelligent system.The APP intelligent system is simple to operate,and can optimize the extraction mode,extraction parameters and antireflection measures,which greatly simplifies the simulation workload of gas extraction under different working conditions.According to the numerical model of APP intelligent system,the gas extraction of 3# coal seam in a mine in Shanxi Province was simulated and calculated.With the increase of extraction time,the total amount of gas extraction increased continuously,and the gas production rate showed a downward trend as a whole.The research results can lay a foundation for the formulation of mine gas extraction scheme and related research.
Gas governanceCoal seam gas extraction informationAPP intelligent systemBorehole flowNumerical simulation
万方数据
维普
