Charles S Mackey

US Patent:

47903945, Dec 13, 1988

Filed:

Nov 19, 1986

Appl. No.:

6/932711

Inventors:

Ben W. O. Dickinson - San Francisco CA
Robert W. Dickinson - San Rafael CA
Richard R. Jensen - Hacienda Heights CA
Sherman C. May - San Francisco CA
Charles S. Mackey - Bakersfield CA
Robert D. Wilkes - Berkeley CA

International Classification:

E21B 718

US Classification:

175 61

Abstract:

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.

US Patent:

47874651, Nov 29, 1988

Filed:

Nov 19, 1986

Appl. No.:

6/932712

Inventors:

Ben W. O. Dickinson - San Francisco CA
Robert W. Dickinson - San Rafael CA
Richard R. Jensen - Hacienda Heights CA
Sherman C. May - San Francisco CA
Charles S. Mackey - Bakersfield CA
Robert D. Wilkes - Berkeley CA
Paul S. Turin - Berkeley CA

Assignee:

Ben Wade Oakes Dickinson III et al. - San Francisco CA

International Classification:

E21B 718

US Classification:

175 67

Abstract:

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.

US Patent:

48526681, Aug 1, 1989

Filed:

Jan 4, 1988

Appl. No.:

7/140488

Inventors:

Ben W. O. Dickinson - San Francisco CA
Robert W. Dickinson - San Rafael CA
Sherman C. May - San Francisco CA
Charles S. Mackey - Bakersfield CA

International Classification:

E21B 718

US Classification:

175 67

Abstract:

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. In one embodiment, the fluid is discharged from a central nozzle as a thin wall conical cutting jet, and a plurality of axially directed jets are spaced about the central nozzle for removing material within the circular groove cut by the conical jet. The conical jet can be used without the axially directed jets to cut core samples. In a second embodiment, the discharge nozzle comprises an oblique bore in a rotor which is driven at a relatively slow speed (e. g.