关键词: 蛇骨钻杆, 曲率半径, 花瓣, 穿层孔, 强造斜钻进.

Abstract: In this paper, a drilling in geological exploration with the snake bone drill pipe, mainly used to remove outburst of seam in roof and floor, strong deflection drilling technology.Conventional drilling machines exist large radius of curvature, the effective extraction of coal hole length is limited, the drill pipe is a new kind of compact structure and reasonable design, can effectively extend the seam of coal geological exploration and drilling hole length with products.

Key words: Snake Bone Drill Pipe, radius of curvature, petal-shaped, crossing borehole, strong deflection drilling technology.