复杂地层条件下煤层瓦斯压力免封孔测试方法应用研究  

Application research on gas pressure measurement technology of coal seam without sealing holes under complex formation conditions

作　　者：关建闯 安丰华[2] 花春蕾 Guan Jianchuang;An Fenghua;Hua Chunlei(Gaocheng Coal Mine,Zhengzhou Coal&Electric Co.,Ltd.,Dengfeng 452470,China;School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]郑州煤电股份有限公司告成煤矿,河南登封452470 [2]河南理工大学安全科学与工程学院,河南焦作454000

出　　处：《能源与环保》2024年第12期104-106,112,共4页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金面上项目(52074107,52474266);河南省自然科学基金面上项目(232300420076)。

摘　　要：为解决复杂条件矿井煤层中瓦斯压力难以准确测试的问题,在三软煤层条件下开展了免封孔煤层瓦斯压力测定技术应用研究。通过对煤体瓦斯量、体积和温度复原,模拟煤体原位赋存状态,得到取样煤样的瓦斯压力。在测试地点同时应用了两堵一注式封孔测压和瓦斯含量曲线推算瓦斯压力方法,与免封孔测定技术进行了对比分析。结果表明,免封孔测压方法测得最大瓦斯压力与间接法推算压力一致,并大于两堵一注测试结果;同时,免封孔测试方法测压用时短,大大提高了现场测试效率。新测定技术的成功应用为复杂地质条件煤层瓦斯压力测试提供了新的有效途径,对矿井瓦斯科学治理具有重要意义。In order to solve the problem that it is difficult to accurately measure the gas pressure in coal seam with complex conditions,the application research of gas pressure measurement technology in coal seam without sealing holes was carried out under"three soft"coal seam condition.By restoring the gas amount,volume and temperature,the gas pressure of the coal body was obtained by simulating the state of the coal body in situ.At the test site,two-plugging and one-injection sealing pressure measurement method and gas content curve calculation method for gas pressure were applied as well,and the measurement technology without sealing holes were compared and analyzed.The results indicate that the maximum gas pressure measured by the measurement method without sealing holes is consistent with the indirectly calculated pressure,and is greater than the test results of the two-plugging and one-injection method.At the same time,the pressure measurement time without sealing holes test method is short,which greatly improves the efficiency of field test.The successful application of the new measurement technology provides a new and effective way for coal seam gas pressure measurement under complex geological conditions,which is of great significance for mine gas scientific control.

关 键 词：瓦斯压力 免封孔 三软煤层 两堵一注封孔 

分 类 号：TD713[矿业工程—矿井通风与安全]