煤田地质与勘探2016，Vol.44Issue(5)：164-167,4.DOI:10.3969/j.issn.1001-1986.2016.05.032
整体式螺旋钻杆的研制及应用
Development and application of integral spiral drill pipe
董昌乐 1董萌萌 1赵建国 1范运林1
作者信息
- 1. 中煤科工集团西安研究院有限公司，陕西西安 710077
- 折叠
摘要
Abstract
when welded spiral drill pipes coorperate air pressure rig to drill a soft coal seam, the spiral ribs are easy to crack, desolder and not wear resistant, resulting in difficulty in borehole formation even scraped borehole. Spiral grooves are machined in the thick wall of pipes through mill cut, the joint is improved, surface treatment of the thread is made, finally the integral spiral drill pipe is developed. The paper introduced briefly the designa nd the process flow of the integral spiral drill pipe. The test results in Panyi Mine, Huainan, showed that the integral spiral drill pipe has good general mechanical properties, powerful hole-forming ability, long service life, can not only re-place welded spiral drill pipe to drill soft coal seam with air pressure, but also replace conventional flat drill pipe to drill rocks.关键词
螺旋钻杆/整体式/钻杆磨损/松软煤层Key words
spiral drill pipe/integral type/wear of drill pipe/soft seam分类
天文与地球科学引用本文复制引用
董昌乐,董萌萌,赵建国,范运林..整体式螺旋钻杆的研制及应用[J].煤田地质与勘探,2016,44(5):164-167,4.
