Bruce Eric Gilbert

US Patent:

51019043, Apr 7, 1992

Filed:

Mar 15, 1991

Appl. No.:

7/670234

Inventors:

Bruce Gilbert - Huntsville TX

International Classification:

E21B 3410

US Classification:

166319

Abstract:

An actuator for actuating a downhole mechanism in a well utilizes increased annular pressure in one instance, and a control line pressure in a second instance. The actuator has an actuating chamber in which an actuating piston moves. The actuating piston communicates with the annulus pressure on one side and with pressure in an intensified pressure chamber on the other side. A control valve locates in a control passage leading from the intensified pressure chamber to the actuator piston. A vent valve locates in a vent passage that leads from the actuator piston to the annulus. The vent valve will close when pressure in the intensified pressure chamber exceeds the annulus pressure by a selected amount. Then, at a selected higher pressure, the control valve will open, allowing the pressure in the intensified pressure chamber to act on the actuator piston. A differential area piston will supply the increased pressure in the intensified pressure chamber from the annulus when the actuator is used with a test tool.

US Patent:

45138222, Apr 30, 1985

Filed:

Jun 9, 1983

Appl. No.:

6/502829

Inventors:

Bruce Gilbert - Huntsville TX

Assignee:

Hughes Tool Company - Houston TX

International Classification:

E21B 2300

US Classification:

166382

Abstract:

An anchor seal assembly is shown of the type used to anchor tubing within the bore of a surrounding conduit to provide a seal between the conduit bore and the tubing. A threaded connector circumscribes a portion of the exterior of the tubing. The threaded connector has external threads for matingly engaging a threaded interior surface within the bore of the surrounding conduit. The threaded connector is slidingly received within a recess provided within the exterior surface of the tubing. The tubing recess has a shoulder area at one end thereof for contacting an end of the threaded connector and has a ramp area at the opposite end for contacting the opposite end of the connector. Movement of the tubing in one direction relative to the conduit bore causes the threaded connector to contact the tubing recess shoulder area thereby causing the connector to ratchet into engagement with the threaded interior surface within the bore of the surrounding conduit. Movement of the tubing in the opposite direction relative to the conduit bore causes the threaded connector to contact the tubing recess ramp area forcing the threaded connector radially outwardly into tighter engagement with the conduit threaded interior to further anchor the seal assembly within the conduit.

US Patent:

44795483, Oct 30, 1984

Filed:

Mar 17, 1983

Appl. No.:

6/476442

Inventors:

Bruce Gilbert - Huntsville TX

Assignee:

Hughes Tool Company - Houston TX

International Classification:

E21B 2306

US Classification:

166387

Abstract:

An adapter kit is shown for attaching a setting tool of the type having a power actuated outer sleeve and a cooperating inner tubular member to a well packer. The adapter kit includes a tubular mandrel having an upper end which is adapted to be connected to the setting tool inner tubular member and has a ramp area formed in a portion of the mandrel exterior. A collet having a collet body and a plurality of expansive collet fingers is slidably received about the tubular mandrel with the ramp area beneath the collet fingers to expand the fingers outwardly with respect to the mandrel. The collet fingers are provided with an outer threaded surface which is adapted to engage a mating internally threaded surface of the well packer when the collet fingers are expanded to the proper thread diameter by passing the mandrel ramp beneath the collet fingers. The collet is releasably secured in position by a shear wire with the fingers in the outwardly expanded position for engaging the packer internally threaded surface. A setting sleeve is engagable with the setting tool power actuated outer sleeve and engages the packer whereby actuation of the setting tool serves to move the setting tool and tubular mandrel in opposite relative directions to sever the shear wire and move the ramp area from beneath the collet fingers to disengage the collet and setting tool from the packer.

US Patent:

53336852, Aug 2, 1994

Filed:

May 14, 1993

Appl. No.:

8/061437

Inventors:

Bruce Gilbert - Fort Worth TX

International Classification:

E21B 2300
E21B 3300

US Classification:

166123

Abstract:

A retrievable packer is provided for wireline setting and tubing retrieval. A circumferentially extending shear member releases the retrievable packer from the wireline once the retrievable packer is set. A positive locking member releasably locks the upper and lower slips to the mandrel as they are wedged into gripping engagement with the casing string. The positive locking member includes a body lock ring which locks the upper slip assembly in a ratcheting engagement with the packer mandrel, and a J-latch which releasably secures the lower slip assembly to the mandrel.