Author:
Alekseev SE,Kubanychbek B,Chernienkov EM
Abstract
Abstract
Advancement trends in DTH air hammer engineering are described, and the modern design requirements are presented. The schematic of DTH air hammer to comply with the current standards is given. Reliability of the machine with three-stage hammering unit is discussed. The process of bottomhole cleaning in this DTH air hammer operation is described. The capacities of an elastic valve arrangement at the largest stage of the hammering unit are determined. The theoretical and full-scale test data of the proposed DTH air hammer design are presented.
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