Jason D Harper

US Patent:

6959759, Nov 1, 2005

Filed:

Mar 31, 2004

Appl. No.:

10/814558

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B023/01

US Classification:

166134, 166206

Abstract:

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel and mating undulating surfaces to help maintain grip under changing load conditions. Upon expansion, pressure on a sealing element is enhanced by nodes to increase internal pressure as it engages an outer tubular. Adjacent retaining rings limit extrusion and enhance grip. A gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

US Patent:

6986390, Jan 17, 2006

Filed:

Mar 31, 2004

Appl. No.:

10/813724

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 33/12
E21B 33/13

US Classification:

166285, 166387, 175 57

Abstract:

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel and mating undulating surfaces to help maintain grip under changing load conditions. Upon expansion, pressure on a sealing element is enhanced by nodes to increase internal pressure as it engages an outer tubular. Adjacent retaining rings limit extrusion and enhance grip. A gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

US Patent:

7044231, May 16, 2006

Filed:

Jun 6, 2003

Appl. No.:

10/456271

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Houston TX, US
John Lindley Baugh - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 19/16

US Classification:

166380, 166382, 166387

Abstract:

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

US Patent:

7051805, May 30, 2006

Filed:

Nov 21, 2002

Appl. No.:

10/301229

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 33/12

US Classification:

166120, 166134, 166206, 166387

Abstract:

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel and mating undulating surfaces to help maintain grip under changing load conditions. Upon expansion, pressure on a sealing element is enhanced by nodes to increase internal pressure as it engages an outer tubular. Adjacent retaining rings limit extrusion and enhance grip. A gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

US Patent:

7117949, Oct 10, 2006

Filed:

Mar 17, 2005

Appl. No.:

11/082175

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Houston TX, US
John Lindley Baugh - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 23/00

US Classification:

166380, 166207, 166382

Abstract:

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

US Patent:

7134504, Nov 14, 2006

Filed:

Sep 17, 2004

Appl. No.:

10/944322

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Houston TX, US
John Lindley Baugh - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 33/127

US Classification:

166387, 166120, 166187, 166382

Abstract:

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

US Patent:

7341110, Mar 11, 2008

Filed:

Apr 29, 2005

Appl. No.:

11/118060

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Cypress TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 23/01
E21B 23/06

US Classification:

166387, 166134, 166206, 166382

Abstract:

A packer device includes a central packer mandrel and a radially surrounding expansion mandrel that can expand radially. At least one slip mandrel carrying wickers surrounds the expansion mandrel and a plurality of axial slots are disposed within the slip mandrel.

US Patent:

7387170, Jun 17, 2008

Filed:

Apr 29, 2005

Appl. No.:

11/118570

Inventors:

James C. Doane - Friendswood TX, US
Jason M. Harper - Cypress TX, US
Nicholas S. Conner - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 33/129

US Classification:

166387, 166134, 166179, 166206

Abstract:

A packer device includes a central packer mandrel and a radially surrounding expansion mandrel. At least one slip mandrel carrying wickers surrounds the expansion mandrel and is secured in place upon the expansion mandrel by an annular retaining ring. The slip mandrel is secured to the retaining ring by screw connectors that pass through the slip mandrel and into retainer segments. The retaining ring is clamped between the slip mandrel and segments. Additionally, the packer device carries a fluid seal that is made up of a thermoplastic material with elastomeric energizing elements.