CIRCULATION SYSTEM OF A PNEUMATIC DRILL WITH CENTRAL LIGHT SOLIDS REMOVAL
A. A. Lipin, Yu. P. Kharlamov, V. V. Timonin
N.A. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasny pr. 54, Novosibirsk, 630091 Russia
Keywords: Drilling tool, ring pneumatic drill, reverse circulation, cleaning agent, circulation system, downhole packer, air curtain
Abstract
The article describes experimental testing of a pneumatic drill tool with reverse circulation of cleaning agent. The authors assessed rational clearance between downhole packer and drill hole walls and propose an engineering design aimed for higher performance of the pneumatic drill circulation system.
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