摘要
为了防止海石湾煤矿风井施工中再次发生油气砂岩突出，在实验室和现场进行了突出危险层预测研究．研究认为钻孔油气喷出、片状岩芯和钻孔变形是最重要的预测评价指标．采用钻孔释放方案，在井筒周围形成一个低地应力、低油气压力保护壳，能经济有效地预防突出．
For the purpose of preventing the outburst of fuel gas and sand rock in the air shaft of Haishiwan Mine from taking place again, the forecasting of dangerous outburst position was done in laboratory and field. The outburst of fuel gas from hole, schistose core and core deformation are important parameters. The project of hole releasing adopted can form a protection shell with low earth stress and fuel gas pressure around the shaft, and the outburst was prevented effectively and economically.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1999年第1期52-55,共4页
Journal of China Coal Society
关键词
砂岩突出
钻孔释放
煤矿
含油气岩层
防突技术
outburst of sand rock, schistose core,borehole releasing, protection shell
