大直径风动潜孔锤中深并孔钻进的可行性分析

Feasibility and Drilling Technology of Large Diameter Air Operated Down Hole Hammer in Medium Depth Hole Drilling

文中介绍了目前国内外风动潜孔锤钻进工艺的现状和技术水平.对已施工的4个水井作了技术分析,计算了不同孔深、不同直径潜孔锤所需风量、风压参数,阐明了空气泡沫钻进的重大意义,论述了完成钻进中深井孔的可行性和经济效果,探讨了相应的钻进工艺.

The state of art of air operated down hole hammer drilling at home and abroad are introduced inthis paper. An analysis of drilling technology of four holes completed was made. We have calculated theair output and wind pressure parameters required by the down hole air operated hammers of differentdiameters at different hole depths in order to expound the important significance of foam drilling. In thelast part of the paper, the feasibility, economical results and appropriate drilling technology for fulfil thedrilling in medium depth holes are discussed.