分析组分对间接法测定煤层瓦斯压力的影响  

Analysis Content Affected to Seam Gas Pressure Measured with Indirect Method

作　　者：赵发军[1] 温志辉[1] 刘明举[1] 魏建平[1] 陈明[1] 

机构地区：[1]河南理工大学,河南焦作454000

出　　处：《煤炭科学技术》2010年第4期52-54,共3页Coal Science and Technology

基　　金：国家重点基础研究发展计划(973计划)资助项目(2005CB221501);教育部新世纪优秀人才支撑计划资助项目(NCET-07-0257)

摘　　要：当煤层瓦斯中的CH4浓度低于80%时,用朗格缪尔气体吸附方程间接测定煤层瓦斯压力可能出现一定误差,因此在进行煤层瓦斯压力计算时,将煤层瓦斯的多组分气体折算成CH4气体来计算瓦斯压力,结果表明:这种校正后间接测定的瓦斯压力误差平均为0.08 MPa,而不直接进行校正测定的平均误差为0.12 MPa,经校正后间接测定的误差可满足实际使用的要求。When the CH4 content in the seam gas was lower than 80%, it would be possible to have a certain error when the Langmuir gas adsorption equation was applied to indirectly measure the seam gas pressure. Therefore, during the calculation of the seam gas pressure, the CH4 converted from the multi component gas of the seam gas was applied to calculate the gas pressure. The results showed that the gas pressure error measured with the indirect measured method was 0. 08 MPa in average and the error of the measured method was 0. 12 MPa in average. Thus the error of the indirect measured method after the correction could meet the requirements of actual application.

关 键 词：瓦斯含量 瓦斯压力 多组分 朗格缪尔 

分 类 号：TD712[矿业工程—矿井通风与安全]