PATRICK SCOTT STONE, JR
Pilots in Houston, TX

4610300, Sep 9, 1986

Sep 14, 1984

6/651278

Albert A. Mullins - Humble TX
Patrick C. Stone - Houston TX
Gary D. Ingram - Sugarland TX

Baker Oil Tools, Inc. - Orange CA

E21B 33129

166134

A packer apparatus for use in a subterranean well comprises an inner mandrel and means for applying tension to the inner mandrel to set radially expandable slips and packing elements. The mandrel can be releasably positioned in a first position to secure the slips and packing element in the retracted position and can be shifted to a second position in which engagable lock segments secure the slips and packing element in expanded configuration. The packer can be released by rotational manipulation or by axial force. The packer apparatus can be used with rotationally manipulatable well tools positioned either above or below the packer apparatus.

5176217, Jan 5, 1993

May 14, 1991

7/701617

Mike A. Luke - Pasadena TX
Patrick C. Stone - Houston TX

Baker Hughes Incorporated - Houston TX

E21B 2300

166195

In subterranean wells, it is common to effect the radial expansion of an annular organic packing element into sealing engagement between a tubular inner body and the inner wall of a well conduit, such as a well casing. Extrusion of the organic material has been encountered between the inner surface of upper and lower cone elements and the exterior of a tubular body portion and also between the inclined surfaces of upper and lower cone elements and the cooperating surfaces of cone rings. The first mentioned extrusion path is eliminated by forming a generally radial surface on the inner end of the upper and lower cones orthogonal to the tubular body and inserting a carbon fiber filled organic material in the resulting annular chamber. The extrusion path between the inclined surface of the cone and the cooperating surface of the cone ring is minimized by utilizing the forces exerted by the compressed sealing material of the packing element in combination with axial movement by the cone element to effect the shearing of the inner vertex portion of a packer ring along a plane that corresponds exactly to the inclined surface of the cone ring.

5103904, Apr 14, 1992

May 14, 1991

7/701622

Mike A. Luke - Pasadena TX
Patrick C. Stone - Houston TX

Baker Hughes Incorporated - Houston TX

E21B 3312

166195

In subterranean wells, it is common to effect the radial expansion of an annular organic sacking element into sealing engagement between a tubular inner body and the inner wall of a well conduit, such as a well casing. Extrusion of the organic material has been encountered between the inner surface of upper and lower cone elements and the exterior of a tubular body portion and also between the inclined surfaces of upper and lower cone elements and the cooperating surfaces of cone rings. The first mentioned extrusion path is eliminated by forming a generally radial surface on the inner end of the upper and lower cones orthogonal to the tubular body, and inserting a carbon fiber filled organic material in the resulting annular chamber. The extrusion path between the inclined surface of the cone and the cooperating surface of the cone ring is minimized by utilizing the forces exerted by the compressed sealing material of the packing element in combination with to effect the shearing of the inner vertex portion of a packer ring along a plane that corresponds exactly to the inclined surface of the cone ring.

4836278, Jun 6, 1989

Feb 4, 1988

7/152348

Patrick C. Stone - Houston TX
Mike A. Luke - Pasadena TX
Gary D. Ingram - Sugarland TX

Baker Oil Tools, Inc. - Orange CA

E21B 2306, E21B 33124, E21B 33128

166115

A plurality of packing elements are mounted in vertically spaced relationship on a tubing string with the spacing of the elements corresponding generally to the spacing of a plurality of sets of perforations in a well conduit. The lowermost packing unit is provided with radially expanding locking elements which engage a locking groove provided in the well conduit. All packing units incorporate expandable elastomeric sealing members and are set by the application of tension to the tubing string and are unset by the subsequent application of a higher degree of tension to the tubing string.

4735266, Apr 5, 1988

Oct 23, 1986

6/922355

Patrick C. Stone - Houston TX
Mike A. Luke - Pasadena TX
Gary D. Ingram - Sugarland TX

Baker Oil Tools, Inc. - Orange CA

E21B 33124

166313

A plurality of packing elements are mounted in vertically spaced relationship on a tubing string with the spacing of the elements corresponding generally to the spacing of a plurality of sets of perforations in a well conduit. The lowermost packing unit is provided with radially expanding locking elements which engage a locking groove provided in the well conduit. All packing units incorporate expandable elastomeric sealing members and are set by the application of tension to the tubing string and are unset by the subsequent application of a higher degree of tension to the tubing string.

4789029, Dec 6, 1988

Nov 2, 1987

7/115517

Patrick C. Stone - Houston TX
Mike A. Luke - Pasadena TX
Gary D. Ingram - Sugarland TX

Baker Oil Tools, Inc. - Orange CA

E21B 2306

166134

A plurality of packing elements are mounted in vertically spaced relationship on a tubing string with the spacing of the elements corresponding generally to the spacing of a plurality of sets of perforations in a well conduit. The lowermost packing unit is provided with radially expanding locking elements which engage a locking groove provided in the wall conduit. All packing units incorporate expandable elastomeric sealing members and are set by the application of tension to the tubing string and are unset by the subsequent application of a higher degree of tension to the tubing string.