摘要
针对常规钻探机具曲率半径大,有效抽采的煤孔段长度有限的问题,设计了一种在地质勘探中钻探用蛇骨钻杆,主要用于顶底板穿层孔消突、强造斜钻进工艺。介绍了该钻杆的全新结构及工作原理,该钻杆的应用可以有效延长穿层孔煤孔段长度。通过大型有限元软件ANSYS对钻杆模型进行仿真,结果基本与设计、检测试验一致。
Aiming at the problems of conventional drilling machines, including large radius of curvature and limited effective drainage length in coal hole,the paper designed a new snake bone drill pipe for geological prospecting,which was mainly applied in outburst elimination with floor crossing- seam drilling and strong deflection drilling technology,to extend the length of crossing- seam drilling in coal section. The structure and working principal was introduced,and the drilling pipe was simulated with ANSYS,the results were consistent with the design and tests.
出处
《煤炭工程》
北大核心
2015年第11期81-82,86,共3页
Coal Engineering
关键词
蛇骨钻杆
曲率半径
花瓣
穿层孔
强造斜钻进
snake bone drill pipe
radius of curvature
petal-shaped
crossing-seam drilling
strong deflection drilling
