Air distribution system with the discharge action in the working cavity of downhole air hammer drills

被引：0
|
作者：
Timonin, V. V. [1 ]
Alekseev, S. E. [1 ]
Kokoulin, D., I [1 ]
Kubanychbek, B. [1 ]
机构：
[1] Russian Acad Sci, Chinakal Inst Min, Siberian Branch, Novosibirsk, Russia
来源：
GEODYNAMICS AND STRESS STATE OF THE EARTH'S INTERIOR (GSSEI 2017) | 2018年 / 134卷
关键词：
D O I：
10.1088/1755-1315/134/1/012062
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
It is proposed to carry out pre-mine methane drainage using underground degassing holes made by downhole air hammer drills. The features of downhole air drills are described. The downhole air drill layout with the simple-shape striking part is presented with its pluses and minuses. The researchers point at available options to eliminate the shortcomings. The improved layout of the downhole air hammer drill is suggested. The paper ends with the test data on the prototype air hammer drill, its characteristics and trial drilling results.
引用
收藏
页数：5
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