摘要
定点取样是煤层瓦斯赋存参数准确测量的基础和关键。分析了瓦斯含量测定技术、煤矿井下取样技术和装备、煤层地面取样技术及装备的研究现状,重点阐述了反循环取样技术以及密闭取芯技术的优势和亟待解决的难题。在此基础上,以煤矿井下瓦斯防治无人化的国家重大战略需求为背景,对煤层定点取样进行了展望,指出瓦斯赋存参数地面随钻测定技术、利用钻孔孔底瓦斯涌出特征反演瓦斯参数技术将是未来的发展趋势。
Fixed point sampling is the basis and key for accurate measurement of coal seam gas occurrence parameters.Analyzed the research status of gas content measurement technology,coal mine underground sampling technology and equipment,coal seam surface sampling technology and equipment,and focuses on the advantages and difficult problems that need to solve of reverse circulation sampling technology as well as closed coring technology.On this basis,based on the national major strategic demand of unmanned gas prevention and control in coal mines,the fixed point sampling of coal seams was prospected,and it was pointed out that the determination technology of gas occurrence parameters on the ground while drilling and the inversion technology of gas parameters using the characteristics of gas emission at the bottom of borehole will be the future development trend.
作者
陈德敏
Chen Demin(Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400039,China;State Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China;College of Mechanical Engineering,Sichuan University,Chengdu 610065,China)
出处
《煤矿机械》
2023年第7期65-67,共3页
Coal Mine Machinery
基金
国家自然科学基金项目(52274150)
重庆市杰出青年科学基金项目(CSTB2022NSCQ-JQX0014)。
关键词
瓦斯参数
定点取样
研究现状
瓦斯含量
gas parameter
fixed point sampling
research status
gas content
