贯通式潜孔锤气力喷反钻具系统

Pneumatic Jet-type Reverse Circulation Tool of The Central Hollow DTH Hammer

摘要:

介绍了贯通式潜孔锤气力喷反钻具系统的工作原理、结构设计、钻具特点及测试和生产试验情况。

关键词:贯通式潜孔锤,气力喷反,反循环,取心钻具

Abstract:

The operating principle, structural design, drilling tool features, as well as test, production trial. are described of the pneumatic jet-type reverse circulation tool of the central hollow DTH hammer.

Key words:central hollow DTH hammer, pneumatic jet-type reverse circulation, reverse circulation, coring tool,