Importance of early adjustment of rotary-percussion drilling tool to mineral mining conditions

Geodynamics and Stress State of the Earth's Interior 2017

Karpov, V.N.^1 ; Timonin, V.V.^1

Chinakal Institute of Mining SB RAS, Novosibirsk, Russia^1

关键词: Downholes;    Economic criteria;    High velocity;    Hole making;    Long term performance;    Mineral minings;    Percussion drilling;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/134/1/012024/pdf
DOI  :  10.1088/1755-1315/134/1/012024

来源: IOP

【 摘 要 】

The authors discuss the technical and economic criteria for the evaluationof efficient application of rotary-percussion drilling tools. The determinants of efficiency of downhole pneumatic drilling hammers are identified. The authors set conditions of high-velocity hole-making and find maximum indices of long-term performance for downhole pneumatic rotary-percussion drilling tools.