摘要
基于探明地质异常对煤层瓦斯均衡抽采和消除煤与瓦斯突出危险的重要性,通过具体实例,指出了利用瓦斯抽采钻孔开展生产地质勘探的必要性和可行性,提出了应用瓦斯抽采钻孔提供的单杆钻屑量、岩屑性质和瓦斯参数变化规律等瓦斯地质信息,及时发现异常,开展瓦斯地质预测的方法,阐述了由疏到密、均匀布设、优先施工煤层顶底板控制孔和完善施工记录等瓦斯抽采钻孔设计和施工的原则。分析表明综合利用瓦斯抽采钻孔开展瓦斯地质异常精细勘探是我国现实可行的瓦斯灾害防治技术。
Based on the importance of the explored geological abnormal to the seam gas balance drainage and extraction and to the coal and gas outburst danger elimination,with certain cases,the paper pointed out the necessity and feasibility of the gas drainage borehole applied to the production geological exploration.The paper provided that the application of the single rod drilling cutting quantity,rock cutting properties,gas parameter variation law and other gas geological information from the gas drainage borehole could on timely find the abnormal and conduct the gas geological prediction method.The paper stated the seam roof and floor controlled boreholes with a layout from sparse to dense,even arrangement and priority construction,the well construction records,the gas drainage borehole design and construction principle.The analysis showed that the comprehensive application of the gas drainage borehole to conduct the detail exploration of the gas geological abnormal could be a feasible gas disaster prevention and control technology in China.
出处
《煤炭科学技术》
CAS
北大核心
2011年第2期39-42,共4页
Coal Science and Technology
基金
河南省基础与前沿研究资助项目(092300410211)
关键词
煤与瓦斯突出
瓦斯抽采
隐伏断层
生产地质勘探
瓦斯地质
coal and gas outburst
gas drainage
hidden fault
production geology exploration
gas geology
