HYDRO-ACOUSTIC FACILITY FOR HOLE DRILLING Russian patent published in 2009 - IPC E21B7/00 

FIELD: mining.

SUBSTANCE: invention refers to rock destroying drilling tool for laying deep holes under geologically complicated conditions. The hydro-acoustic facility for drilling holes consists of a case with washing channels, of a unit generating hydro-acoustic waves made in form of a vortex chamber with tangential input channels, of an ejection unit made in the case to create depression, and of a drilling bit. The vortex chamber is installed in the case of the facility. The ejection unit is made in form of Venturi tube. Screwed grooves are cut on the case. The invention facilitates improved performance characteristics of drilling, and improved quality of producing horizon exposure including inclined and horizontal holes.

EFFECT: improved performance characteristics of drilling, and improved quality of producing horizon exposure including inclined and horizontal holes.

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