David Paul Hebert

US Patent:

6568474, May 27, 2003

Filed:

Mar 27, 2001

Appl. No.:

09/818298

Inventors:

Kevin R. George - Burleson TX
Stanley Wall - Houston TX
Marvin Bryce Traweek - Houston TX
Barry Ed Smith - Carencro LA
David Joseph Walker - Lafayette LA
David A. Hebert - Lafayette LA

Assignee:

BJ Services, USA - Houston TX

International Classification:

E21B 4308

US Classification:

166278, 166297, 166 551

Abstract:

A method of perforating and gravel packing a wellbore casing, having the following steps: (1) making-up to a pipe string: a packer, a screen, and a perforating apparatus; (2) running-in the pipe string until the perforating apparatus is at a depth of intended perforations; (3) setting the perforating apparatus in the wellbore casing at a depth of intended perforations; and (4) disconnecting the screen and perforating apparatus from the pipe string. A system for perforating and gravel packing a wellbore casing, having: a packer which is mechanically communicable with a service string: a screen in mechanical communication with the packer; a perforating apparatus in mechanical communication with the screen, wherein the screen and perforating apparatus are detachable from the packer; and a tool having at least one casing engaging slip segment, wherein the tool is matable with the perforating apparatus, and wherein the tool is settable in the wellbore casing.

US Patent:

8141627, Mar 27, 2012

Filed:

Mar 26, 2009

Appl. No.:

12/411604

Inventors:

George N. Krieg - Broussard LA, US
David Hebert - Scott LA, US
Graham J. Duplantis - Lafayette LA, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 37/00

US Classification:

166172, 166311, 166174

Abstract:

In some embodiments, apparatus useful for cleaning at least part of the interior surface of a cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing. The mill blades of such embodiments are capable of cleaning the entire circumference of the interior surface of at least a portion of the cylindrically-shaped member upon reciprocation of the housing.

US Patent:

20110214873, Sep 8, 2011

Filed:

May 16, 2011

Appl. No.:

13/108750

Inventors:

George N. Krieg - Broussard LA, US
David Hebert - Scott LA, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 37/02
E21B 37/00

US Classification:

166311, 166174

Abstract:

In some embodiments, apparatus useful for cleaning at least part of the interior surface of a generally cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing and movable from an initial retracted position to an extended position and thereafter to a final retracted position.