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众所周知,煤层沼气含量这一参数,无论在矿井沼气涌出量的计算,还是在煤与瓦斯突出的防治及其突出机理研究方面都是一个极为重要的参数。对煤层沼气含量的测定方法有直接测定法和间接测定法两种。煤层沼气含量间接测定法的实质是在实验室测定煤的沼气等温吸附常数和煤的空隙率,根据井下煤层测定的瓦斯压力来计算煤的吸附沼气量和游离沼气量,并考虑一系列影响校正系数,即可求出煤层的沼气含
It is well known that the parameter of coalbed methane content is an extremely important parameter both in the calculation of mine gas emission and in the prevention and control of coal and gas outburst and its outstanding mechanism. There are two methods to determine the biogas content of coal seam: direct method and indirect method. The essence of indirect determination of coalbed methane content is to determine isothermal adsorption constants of coal and porosity of coal in the laboratory, calculate the amount of adsorbed methane and free biogas based on the gas pressure measured in the underground coal seam, and consider a series of influence correction Coefficient, you can find the biogas content of coal seam