John Charles Gano
Engineering at White Ash Rd, Carrollton, TX

5954130, Sep 21, 1999

Sep 24, 1998

9/160268

Pat M. White - Carrollton TX
John C. Gano - Carrollton TX

Halliburton Energy Services, Inc. - Dallas TX

E21B 2300

1661176

In a parent wellbore casing, full bore access to the portion of the casing beneath a lateral bore liner portion therein is provided using a specially designed tubular retrievable anchor assembly hydraulically set within the casing above the liner portion and having a depending mill guide portion. A milling pipe with a first rotary mill is extended through the anchor assembly, with the mill being laterally deflected by the guide to mill a partial opening through the bottom side wall of the liner portion. The milling pipe is then withdrawn from the casing, the first mill replaced with a second rotary mill, and a specially designed tubular retrieval collet coaxially secured to the milling pipe. The milling pipe is then extended downwardly through the anchor assembly, the second mill used to enlarge the initial liner opening, and the collet snapped into the anchor assembly. The anchor assembly is then retrieved by pulling up on the milling pipe to release the anchor assembly which is removed from the casing.

6725918, Apr 27, 2004

Oct 11, 2001

09/975346

John C. Gano - Carrollton TX

Halliburton Energy Services, Inc. - Dallas TX

E21B 2300

166206, 166120

A method of regulating flow through a first tubular structure in a well provides flow control by use of an expandable second tubular structure inserted into the first tubular structure and deformed therein. In a described embodiment, a liner has sealing material externally disposed thereon. Expansion of the liner within a screen assembly may be used to sealingly engage the liner with one or more well screens of the screen assembly, and may be used to regulate a rate of fluid flow through one or more of the well screens.

5613559, Mar 25, 1997

Aug 9, 1995

8/513149

Jimmie R. Williamson - Carrollton TX
John C. Gano - Carrollton TX
David L. Reesing - Irving TX

Halliburton Company - Dallas TX

E21B 1702

166381

A decentralizer for a diverter, a centralizing guide bushing and a downhole-deployable locating and orienting subsystem. The subsystem is capable of three modes of operation: (a) a running mode in which an actuating mandrel is in a first axial limit position with respect to a common mandrel, the actuating mandrel placing first and second double-acting springs in a stowed position wherein locating and orienting keys are retracted radially inwardly with respect to the common mandrel to shield the locating and orienting keys from substantial contact with a surrounding well flow conductor as the common mandrel traverses therethrough, (b) a locating mode in which the actuating mandrel is in an intermediate axial position with respect to the common mandrel, the actuating mandrel placing the first and second double-acting springs in a deployed position resiliently to bias the locating and orienting keys radially outwardly with respect to the common mandrel to seek a locating and orienting profile on an inner surface of a surrounding honed bore within the surrounding well flow conductor, and (c) a set mode in which the actuating mandrel is in a second axial limit position with respect to the common mandrel, the actuating mandrel directly engaging and stiffly retaining the locating and orienting keys in engagement with the locating and orienting profile thereby to fix the common mandrel in a desired location and orientation with respect to the honed bore.

RE41118, Feb 16, 2010

Oct 30, 2007

11/928732

Michael M. Brezinski - Duncan OK, US
Gregory B. Chitwood - Dallas TX, US
Ralph H. Echols - Dallas TX, US
Gary P. Funkhouser - Duncan OK, US
John C. Gano - Carrollton TX, US
William D. Henderson - Tioga TX, US
Paul I. Herman - Plano TX, US
Marion D. Kilgore - Dallas TX, US
Ronald J. Powell - Duncan OK, US
Thomas W. Ray - Plano TX, US
Roger L. Schultz - Aubrey TX, US
Robert S. Taylor - Red Deer, CA
Bradley L. Todd - Duncan OK, US
Cynthia Tuckness - Coppell TX, US

Halliburton Energy Services, Inc. - Houston TX

E21B 33/127, E21B 23/00

166387, 166187, 166206, 166382, 277333

The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

6230806, May 15, 2001

Jan 24, 2000

9/490124

John C. Gano - Carrollton TX

Halliburton Energy Services, Inc. - Dallas TX

E21B 2303, E21B 4314

166313

Temporary no-go assemblies for use in locating a downhole tool at a predetermined target depth in a well are disclosed. Certain ones of the assemblies include a no-go sleeve for interfacing with a no-go shoulder in a casing and an actuating system for releasing the assembly from the no-go sleeve. Other ones of the assemblies include a key for engaging a landing nipple in a casing and a key retractor for retracting the key from the nipple. Still other ones of the assemblies include a key for engaging a no-go shoulder in a casing and a key retractor for retracting the key from the no-go shoulder. The assemblies are particularly useful in drilling and completing wells from a floating drilling rig.

5971074, Oct 26, 1999

Jul 1, 1998

9/109009

James R. Longbottom - Whitesboro TX
John C. Gano - Carrollton TX

Halliburton Energy Services, Inc. - Dallas TX

E21B 708

166313

A method of completing a subterranean well and associated apparatus therefor provide efficient operation and convenience in completions where production of fluids from a lateral wellbore and a parent wellbore is desired. In one disclosed embodiment, the invention provides an efficient method of protecting a junction of multiple wellbore portions by positioning a tubular drilling guide within the well extending through the junction. In one aspect of the present invention, the drilling guide is sealingly engaged with certain ones of the wellbore portions while drilling operations are being performed.

5564502, Oct 15, 1996

Jan 30, 1995

8/381571

Robert W. Crow - Irving TX
John C. Gano - Carrollton TX
Nam V. Le - Lewisville TX
James R. Longbottom - Whitesboro TX
Karluf Hagen - Stavanger, NO

Halliburton Company - Dallas TX

E21B 3312

166386

A well control valve assembly prevents flow from or to completion segments further downhole from the well control valve assembly once the stimulation stimulation/shifter string has been removed from the production tubing string. The well control valve assembly features a shaped flapper plate which, when opened, conforms closely to the shape and size of the production tubing string's interior diameter. The flapper plate is biased toward a closed position by a compression spring arrangement that includes an arm which levers the plate upward toward a seating surface. The valve assembly's closure is mechanically induced and is not responsive to a sensed well condition.

6135206, Oct 24, 2000

Jul 1, 1998

9/108549

John C. Gano - Carrollton TX
James M. Barker - Mansfield TX

Halliburton Energy Services, Inc. - Houston TX

E21B 2902, E21B 2906

166297

Apparatus and associated methods of using provide convenient and economical forming of an opening through a tubular structure in a subterranean well. In a preferred embodiment, an apparatus has a whipstock wherein a receiver and a cutting device are operatively disposed. The receiver is capable of receiving a predetermined signal from a transmitter disposed within the tubular structure. The cutting device is activated to form the opening through the tubular structure a predetermined time interval after the signal is received.

5507346, Apr 16, 1996

Jan 30, 1995

8/380771

John C. Gano - Carrollton TX
Donald D. Baldwin - Lincoln NE
John A. Reigle - Lincoln NE

Halliburton Company - Houston TX

E21B 1710

166285

A well flow conductor and method of manufacture therefor. The well flow conductor includes: (1) a composite liner tube composed of a plurality of overlapping, resin-bonded composite plies and adapted to conduct a fluid flow therethrough and (2) a composite outer structure surrounding the composite liner tube and composed of a plurality of overlapping, resin-bonded composite plies arranged in a plurality of opposed helices about a centerline of the composite liner tube, the opposed helices intersecting at predetermined axial and radial locations on an outer surface of the composite liner tube to form nodes extending radially outwardly from the outer surface to form standoffs therefrom, the standoffs capable of centralizing the well flow conductor within an interior of a casing having a larger radius than that of the well flow conductor.

4535968, Aug 20, 1985

Nov 16, 1983

6/552446

John C. Gano - Carrollton TX
Gary A. Kohn - Carrollton TX

Otis Engineering Corporation - Dallas TX

F16K 3112

251 58

A ball type valve in which the ball is rotated by the cooperation of multiple tracks and multiple track followers. Also, a pressure operated permanent lock-out is disclosed. Pressure applied to a piston withdraws an expander from under a lock ring to release a lock-out sleeve. Continued application of pressure drives the sleeve to valve lock-open position where the sleeve is permanently locked to the housing.