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Ben Wade Oakes Dickinson III Et Al.

Richard R Jensen

Robert Wayne Dickinson

Ben W Dickinson

Robert D Wilkes, Jr

Charles S Mackey

Sherman C May

Paul S Turin

Hydraulic drilling apparatus and method suitable for use in a variety of applications including the drilling of deep holes for oil and gas wells and the drilling of vertical, horizontal or slanted holes, drilling through both consolidated and unconsolidated formations, and cutting and removing core samples. The drill head produces a whirling mass of pressurized cutting fluid, and this whirling fluid is applied to a discharge nozzle to produce a high velocity cutting jet. The cutting action is enhanced by abrasive material in the drilling fluid. The direction of the borehole is controlled by controlling the discharge of the drilling fluid either in side jets directed radially from the distal end portion of the drill string which carries the drill head or in a plurality of forwardly directed cutting jets.

Hydraulic drilling apparatus and method

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Hacienda Heights, CA, United States of America

Richard R Jensen