基岩水井采用泡沫潜孔锤钻进实践

Practice of Bedrock Well Drilling by Foam DTH Hammer

摘要:

通过对甘肃肃北七角井铁矿区φ310 mm口径基岩水井空气泡沫潜孔锤钻进施工，总结验证了空气泡沫潜孔锤钻进施工大口径基岩水井的工艺，提出了不同孔段的钻进技术措施。

Abstract:

With the construction case of a bedrock well in an iron ore mine of Gansun, which was 310 mm in diameter and constructed by foam DTH hammer, the paper summed up and verified the application of foam DTH hammer technology in large diameter bedrock well construction and presents drilling technologies in different borehole sections.