Michael E Mcmahan

US Patent:

6964305, Nov 15, 2005

Filed:

Aug 11, 2003

Appl. No.:

10/638840

Inventors:

Michael E. McMahan - Humble TX, US
Steve Rosenblatt - Haddonfield NJ, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B043/00

US Classification:

166380, 166207, 166384

Abstract:

In one variation, a tool is disclosed that can run cladding into casing where the cladding interior is closed off by opposed cup seals and access to the volume between the cup seals exists through the tool body. “Cladding” comprises sleeves, scrolls, casing, tubing and liner strings. Pressure is applied to the interior of the cladding to expand it into gripping and sealed contact with the casing. An exterior gripping surface can be provided on the cladding to enhance grip upon expansion. The tool can be repositioned to expand lengths of cladding including tubing or casing.

US Patent:

8215409, Jul 10, 2012

Filed:

Aug 3, 2009

Appl. No.:

12/534428

Inventors:

Mark K. Adam - Houston TX, US
Dennis G. Jiral - Katy TX, US
Lance M. Rayne - Spring TX, US
Michael E. McMahan - Humble TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 43/10

US Classification:

166384, 166207

Abstract:

An expansion assembly is run into the well as the expandable liner is made up. A work string is tagged into the expansion assembly and run to depth. Pressure drives the swage to initially expand and move uphole with the attached work string until the liner is expanded to set at least one external packer. The balance of the expansion in the uphole direction is continued until the string is expanded into sealing support of a higher string in the wellbore and the variable swage comes out of the hole with the work string. A shoe is milled out and the process can be repeated.

US Patent:

8225878, Jul 24, 2012

Filed:

Aug 3, 2009

Appl. No.:

12/534321

Inventors:

Mark K. Adam - Houston TX, US
Dennis G. Jiral - Katy TX, US
Lance M. Rayne - Spring TX, US
Michael E. McMahan - Humble TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 43/10

US Classification:

166384, 166207

Abstract:

An expansion and cementing assembly is run into the well as the expandable liner is made up. A work string is tagged into the expansion assembly and run to depth. Pressure drives the swage to initially expand and move uphole with the attached work string until the liner is expanded above the location of the subsequent cement placement. The assembly is then lowered to engage the guide/float shoe to perform the cementing step. The swage assembly is then released from the guide/float shoe and the balance of the expansion is performed without further expansion against the recently placed cement. The expansion assembly can start at the guide/float shoe or higher, in which case expansion can occur initially in a downhole direction and later be completed in an uphole direction. Variations without cementing are also contemplated.

US Patent:

7360592, Apr 22, 2008

Filed:

Apr 20, 2005

Appl. No.:

11/110210

Inventors:

Michael E. McMahan - Humble TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 43/00

US Classification:

166207, 166206, 166380

Abstract:

A compliant, integrated, fastening and sealing system located on either end of cladding or on a liner hanger. It features protrusions in opposed directions whose contact edges are preferably hardened. The protrusions penetrate the surrounding tubular on expansion of the smaller tubular. Seals are included adjacent the protrusions so that seals between adjacent protrusions get forced toward each other upon flexing of the projections that penetrate the surrounding tubular. The attachment configuration is particularly suited for use with fixed swages or variable swages with limited dimensional adjustability when precise ID of host casing or open hole is unknown.

US Patent:

20100032167, Feb 11, 2010

Filed:

Jul 29, 2009

Appl. No.:

12/511804

Inventors:

Mark K. Adam - Houston TX, US
Dennis G. Jiral - Katy TX, US
Lance M. Rayne - Spring TX, US
Michael E. McMahan - Humble TX, US

International Classification:

E21B 23/00

US Classification:

166382

Abstract:

A well having a minimum drift between or among strings is provided using strings that have a recessed segment and a hanging segment. The length of the recessed segment in the lower end of the upper string is substantially longer than the hanging segment of the lower string that is passed through it. The hanging segments define the drift dimension. In the event the lower string gets stuck in the open hole before it is fully advanced, the hanging segment of the lower string may still be in the recess of the upper string so that the drift dimension can be preserved. Preferably the recess segment is the substantial length of the tubular string apart from its hanging segment near its top end. One or more laterals can be extended through the recessed segments while retaining the drift dimension.

US Patent:

48040444, Feb 14, 1989

Filed:

Apr 20, 1987

Appl. No.:

7/040219

Inventors:

David S. Wesson - Katy TX
Michael E. McMahan - Duncan OK
Flint R. George - Katy TX

Assignee:

Halliburton Services - Duncan OK

International Classification:

E21B 43116

US Classification:

166297

Abstract:

A tool for activating the firing head of a perforating gun located below a packer by applying pressure to the upper well annulus while maintaining an unimpeded bore between the perforating gun and the pipe string. The tool is provided with a flow valve to prevent flow through the flow bore when closed, and a circulation valve which permits fluid flow from the upper annulus into the flow bore when open and a means of switching the valves so that when one is open the other is closed. A method of using the tool to complete a well is also disclosed.

US Patent:

61316636, Oct 17, 2000

Filed:

Jun 10, 1998

Appl. No.:

9/095507

Inventors:

David A. Henley - Spring TX
Michael E. McMahan - Humble TX

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 33124
E21B 33128
E21B 33129
E21B 3414

US Classification:

166373

Abstract:

A method and apparatus is disclosed for downhole remediation. In the preferred embodiment, a bridge plug and service packer can be run into a well on coiled or rigid tubing. The assembly is capable of being set without rotation. The service packer is locked against setting until it is separated from the bridge plug. Setting of the bridge plug closes a passage within it that had been open to facilitate circulation during run-in. The service packer is set with longitudinal movements using an indexing mechanism. At the conclusion of the procedure, the service packer is released and lowered to recapture the bridge plug. The bridge plug is equalized and released to allow the assembly to be repositioned elsewhere in the wellbore or retrieved. The spacing between the packer and bridge plug can be varied as desired.