Robert J Robertson

US Patent:

6547006, Apr 15, 2003

Filed:

Jun 5, 2000

Appl. No.:

09/587194

Inventors:

Marc Kuck - Houston TX
Thomas Floyd Bailey - Houston TX
Monte Ira Johnson - The Woodlands TX
Robert Eugene Robertson - Tomball TX
Andrew Arthur Barry - Missouri City TX
Thurman James Carter - Houston TX
Teme Forrest Singleton - Covington LA
John Douglas Roberts - Spring TX
William Alan Spielman - The Woodlands TX
David Michael Haugen - League City TX

Assignee:

Weatherford/Lamb, Inc. - Houston TX

International Classification:

E21B 706

US Classification:

166298, 166 50, 1661176

Abstract:

Wellbore apparatus has been invented which, in at least certain aspects, includes a wellbore apparatus having a tubular member with a top end, a bottom end, a hollow portion, and a window therethrough, a sleeve positioned within the hollow portion of the tubular member, the sleeve having a top end and a bottom end, a diverter apparatus within or outside the tubular member amd, optionally, below the bottom end of the sleeve, the sleeve movable so that the diverter, and the diverter directs the sleeve to the window and through the window into a bore extending beyond the window, and the window having an edge therearound to which the top end of the sleeve is weldable to sealingly secure the sleeve at the window.

US Patent:

62027522, Mar 20, 2001

Filed:

Feb 18, 1999

Appl. No.:

9/252504

Inventors:

Marc David Kuck - Houston TX
Thomas Floyd Bailey - Houston TX
Monte Ira Johnson - The Woodlands TX
Robert Eugene Robertson - Tomball TX
Andrew Arthur Barry - Missouri City TX
Thurman Beamer Carter - Houston TX
William Allen Blizzard - Houston TX
Teme Forrest Singleton - Houma LA
John Douglas Roberts - Spring TX
William Alan Spielman - The Woodlands TX
David Michael Haugen - League City TX
Guy LaMonte McClung - Spring TX

Assignee:

Weatherford/Lamb, Inc. - Houston TX

International Classification:

E21B 704

US Classification:

166298

Abstract:

New wellbore milling systems and methods of their use have been developed, the milling system in one aspect including at least one mill, at least one stabilizing member connected to and above the at least one mill, and the at least one stabilizing member for maintaining position of the at least one mill for milling through the liner into the main wellbore. In certain aspects multiple spaced-apart stabilizers are used above a mill which, in one aspect, may include one or more reaming stabilizers. In one aspect the lowermost stabilizer is spaced-apart from a mill so that the stabilizer does not enter a bend portion of a liner to be milled until milling has commenced.

US Patent:

60560568, May 2, 2000

Filed:

Jan 18, 1998

Appl. No.:

9/008614

Inventors:

Douglas G. Durst - Katy TX
Robert E. Robertson - Tomball TX
Thurman B. Carter - Houston TX
Paul J. Johantges - Deer Park TX
Charles W. Pleasants - Cypress TX
William A. Blizzard - Houston TX
Dale E. Langford - Lafayette LA
Guy L. McClung - Spring TX

International Classification:

E21B 2900

US Classification:

166298

Abstract:

Wellbore apparatus has been invented that includes a whipstock with a top and a bottom, the whipstock disposed in a wellbore extending down from an earth surface into the earth, the wellbore having an inner surface, a mill guide with a body having an upper end, a lower end, and a channel therethrough from the upper end to the lower end, and a portion of the lower end of the mill guide disposed between and held between the inner surface of the wellbore and an outer surface of the top of the whipstock. A method for stabilizing a mill guide in a wellbore extending from an earth surface into the earth has been invented, the wellbore having an inner surface, the method including setting a whipstock at a location in the wellbore, the whipstock having a top and a bottom, moving a mill guide down into the wellbore to contact the whipstock, the mill guide having a body with an upper end, a lower end, and a channel therethrough from the upper end to the lower end, and positioning the mill guide so that a portion of the lower end of the mill guide is stabilizinglyconnected to and/or received and held between the inner surface of the wellbore and an outer surface of the top of the whipstock. A method has been invented for milling within a whipstock set in a wellbore extending from an earth surface down into the earth, the whipstock having a body with a top and a bottom, the method including introducing a mill guide into the wellbore above the whipstock, moving the mill guide into stabilizing contact with the whipstock, the mill guide having a top and a bottom and a channel therethrough from top to bottom, guiding a mill with the mill guide to mill down into the whipstock and through at least a longitudinal portion thereof, the mill having at least a portion thereof in contact with the mill guide while milling the at least a longitudinal portion of the whipstock.

US Patent:

61553492, Dec 5, 2000

Filed:

Mar 3, 1998

Appl. No.:

9/033970

Inventors:

Robert Robertson - Tomball TX
Thurman B. Carter - Houston TX
Timothy Wilson - Houston TX
William A. Blizzard - Houston TX
Guy L. McClung - Spring TX

Assignee:

Weatherford/Lamb, Inc. - Houston TX

International Classification:

E21B 4311

US Classification:

166298

Abstract:

A wellbore mill has been invented having a flexible main body, and at least one milling apparatus secured on the flexible main body. A wellbore mill has been invented having a main body with a top end and a bottom end, at least one milling structure on the mill body, and a stinger projecting down from and releasably secured to the bottom end of the mill body. Methods have been invented for milling wellbore tubulars with such mills. A method for eliminating tubular offset in a wellbore has been invented, and the method includes positioning a wellbore mill in a tubular offset of a tubular string in a wellbore, the wellbore mill comprising a flexible main body and at least one milling apparatus secured on the flexible main body, and rotating the wellbore mill to mill at least part of the tubular offset.

Author:

Robert J. Robertson

ISBN #:

0736048375

Author:

Robert J. Robertson

ISBN #:

0890968411

Author:

Robert Alexander Robertson

ISBN #:

0486221318

Author:

Robert E. Robertson

ISBN #:

0309056209

Author:

Robert E. Robertson

ISBN #:

0756708990

Author:

Robert E. Robertson

ISBN #:

0756729211

Author:

Robert E. Robertson

ISBN #:

0756739691

Author:

Robert E. Robertson

ISBN #:

0756740371