Research on the Reserve Evaluation and Productivity Prediction of Coalbed Methane Development in a Coal Mine in Guizhou
The study area is located in the middle part of the northwest wing of Huangnitang syncline and is gener-ally a broad and gentle monocline structure.Geological parameters such as the coal quality analysis of coal rock,the mechanical properties of rock,gas content and isothermal adsorption and coal reservoir parameters such as perme-ability,pressure and temperature are obtained by the means of laboratory tests in the study area,the volume method is used to calculate geological reserves,and the isothermal adsorption method is used to predict productivity in com-bination with depletion pressure,which provides a basis for the reserve evaluation and subsequent exploration and development of exploration areas.The potential coal seam is selected for trial mining,and the main production seam is implemented,which provides basis for calculating proved reserves.
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