摘要
通过对注气(CO2)压裂后煤层中氡析出、运移产生影响的研究,探讨测氡法在煤层注气后CO2运移监测的可行性。运用趋势面分析法对测氡法探测结果进行分析,结果表明:煤层注气(CO2)压裂,有利于增加煤层的射气系数,从而在地面形成可观测的氡值异常;CO2在低变质煤层中的运移受煤层走向的影响,容易沿煤层走向方向发生运移。活性炭能谱测氡法可以作为监测注气后CO2运移的方法。
Based on the research on the effects of radon exhalation and migration caused by the CO2 injection,the feasibility is discussed that the application of radon measurement method in CO2 migration monitoring after gas injection in coal seam. The trend surface analysis method is used to deal with the detection results of radon measurement,the results show that the gas（ CO2） injection fracturing in coal seam,it is beneficial to increase radon emanation coefficient,which makes radon anomalies measurable on the ground. The coal seam direction can affect the CO2 migration in low metamorphic coal seam,the migration happens easily along the coal seam direction. The radon measurement method with activated carbon spectrum can be used to monitor CO2 migration after gas injection.
出处
《煤矿安全》
CAS
北大核心
2015年第3期133-136,共4页
Safety in Coal Mines
关键词
CO2运移监测
测氡法
趋势面分析
煤层注气
压裂
migration monitoring of CO2
radon measurement method
trend surface analysis
gas injection in coal seam
fracturing
作者简介
王兴（1986-），男，河北保定人，太原理工大学在读硕士研究生，从事地球探测与信息技术研究。
