摘要
该文通过大量井下承压含水层钻进实践 ,总结出高承压水头时孔口管的固定方法、防止井喷设施的制备、减压装置的安装及钻孔内含水段的隔离等关键技术。
By a large amount of drilling practice of underground aquifer, the paper summarizes the key technologies, such as the fixing method of the pipe section at the top of the hole under high pressure water head, the manufacture of the equipment to prevent the well blowout, the installation of the decompressor, and the isolation of the water-bearing section inside the borehole etc..
出处
《勘察科学技术》
2000年第5期41-45,共5页
Site Investigation Science and Technology
关键词
孔口管
承压水
煤矿
含水层
钻进勘探
pipe section at the top of borehole
confined water
well blowout
pressuring and depressuring
