MR. JOHN JASON ROBERTS, RT(R)
Radiology at Wildflower Trace Pl, Spring, TX

6334487, Jan 1, 2002

Apr 19, 2000

09/552533

Courtney W. Adkins - Katy TX 77449
Thurman B. Caarter - Houston TX 77073
John D. Roberts - Spring TX 77379
Richard M. Ward - Conroe TX 77302

E21B 2900

166 557, 1661176, 1663344

A milling system has been invented for milling an opening in a tubular in a tubular string in a wellbore extending down from a surface of the earth, the milling system, in one aspect, has a whipstock connected to an anchor assembly and a mill apparatus releasably connected to the whipstock, the mill apparatus having auto fill apparatus therein. A mill has been invented with a mill body with a top end and a bottom end, a flow bore through the mill body, and an auto fill apparatus in the flow bore. A valve assembly has been invented for selectively controlling fluid flow through a hollow tubular in a string of hollow tubulars in a wellbore extending from a surface of the earth into the earth, the valve assembly in one aspect having positions limited to at rest, circulate, and anchor set positions so that a fluid pressure indicating at the surface indicates only either a pressured up position for anchor setting or a pressured up position for fluid circulation. A milling system has been invented with apparatus for releasably containing an isolated charge of fluid. A float valve for use in wellbore operations has been invented with a valve member having a vent hole for releasing fluid pressure build up beneath the valve member.

6695056, Feb 24, 2004

Feb 20, 2002

10/079139

David M. Haugen - League City TX
John D. Roberts - Spring TX

Weatherford/Lamb, Inc. - Houston TX

E21B 2300

166297, 166298, 166382, 1661176, 166 552

The present invention discloses and claims a system for forming an opening, or window, in a downhole tubular for the subsequent formation of a lateral wellbore. In the system of the present invention, an apparatus is run into the parent wellbore which includes at least a tubular having a drill bit, a diverter such as a whipstock releasably connected to the drill bit, an anchoring device such as a packer, and a milling device. This apparatus allows for the milling of a window in the parent wellbore, and the drilling of a lateral wellbore through that window, in a single trip.

6547006, Apr 15, 2003

Jun 5, 2000

09/587194

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

Weatherford/Lamb, Inc. - Houston TX

E21B 706

166298, 166 50, 1661176

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.

6209636, Apr 3, 2001

Mar 7, 1999

9/264546

John D. Roberts - Spring TX
Jan Drechsler - Stavanger, NO
Tom Salversen - Sandnes, NO
Tom Unsgaard - Stavanger, NO
Eirik Enerstvedt - Stavanger, NO
William A. Blizzard - Houston TX
Dale E. Langford - Lafayette LA
Thurman B. Carter - Houston TX

Weatherford/Lamb, Inc. - Houston TX

E21B 2304, E21B 33127

1661176

A new wellbore apparatus has been invented which, in certain aspects, has anchor apparatus for anchoring the wellbore apparatus in a bore, the anchor apparatus actuated by fluid under pressure supplied thereto, and sealing apparatus selectively inflatable to close off the bore to fluid flow therethrough, and temperature compensating apparatus for maintaining a desired fluid pressure in the sealing apparatus to prevent it from bursting or deflating. A method for closing off a bore in a well has been invented which, in certain aspects, includes installing wellbore apparatus in the bore, the wellbore apparatus comprising anchor apparatus for anchoring the wellbore apparatus in a bore, the anchor apparatus actuated by fluid under pressure supplied thereto, and sealing apparatus interconnected with the anchor apparatus and selectively inflatable with fluid under pressure to close off the bore to fluid flow therethrough, and the wellbore apparatus upon anchoring in the bore and inflation of the sealing apparatus including a primary barrier in the bore.

5887655, Mar 30, 1999

Jan 30, 1997

8/790543

David M. Haugen - League City TX
William A. Blizzard - Houston TX
Mark W. Schnitker - Friendswood TX
Steve R. Delgado - Houston TX
Thurman B. Carter - Houston TX
John D. Roberts - Spring TX
Joseph D. Mills - Houston TX
Frederick T. Tilton - Spring TX
Paul J. Johantges - Deer Park TX
Charles W. Pleasants - Cypress TX

Weatherford/Lamb, Inc - Houston TX

E21B 2900

166298

Wellbore operations (e. g. for milling and/or drilling) are disclosed which require a reduced number of tool trips into a wellbore to create a cut-out pocket, opening, or window in a tubular such as casing in the wellbore; and, in some aspects, to continue into a formation adjacent a main wellbore forming a lateral wellbore in communication with the main wellbore. Preferably one trip is required to complete a window or a window and the lateral wellbore. In one aspect a full gauge tool body is used so that the completed lateral wellbore is of a substantially uniform diameter along its entire length, which, in one aspect is suitable for the passage therethrough of full gauge tools, pipe, devices, and apparatuses. In one aspect a cutting system has cutting apparatus initially covered with a wearable away material which is worn away by contacting a tubular to be milled, exposing the cutting apparatus for milling and/or for drilling formation adjacent the wellbore. In certain aspects the lateral wellbore is: about one foot long; two feet long or less; five feet long or less; between five feet and fifty feet long; one hundred feet long or less; between about one hundred and about two hundred feet long; or two hundred or more feet long.

2001004, Dec 6, 2001

May 14, 1999

09/312140

JOHN D. ROBERTS - SPRING TX, US
JAMES LONGBOTTOM - MAGNOLIA TX, US
DAVID M. HAUGEN - LEAGUE CITY TX, US
ALEX DAWSON - KEITH, GB
DAVID DUGUID - ABERDEEN, GB
FRANK ALEXANDER MIDDLETON - DUBAI, SA
BRIAN BINGHAM - PEARLEND TX, US
TODD HORST - HOUSTON TX, US

E21B023/00, E21B017/10

166/387000, 166/241100, 166/191000, 166/050000

Methods are disclosed for wellbore operations in an earth wellbore with tubing within casing in an earth wellbore, the wellbore extending down into earth from an earth surface, the tubing including a tubing string with a lower end and extending down within the casing with the lower end at a point above a lower end of the casing, a tubing-casing annulus between the tubing and the casing sealed by a first sealing apparatus, the method including sealing the lower end of the tubing string with a sealing device to prevent fluid flow therethrough, and sealing the tubing casing annulus with a second sealing apparatus above and spaced apart from the first sealing apparatus. In certain aspects the sealing apparatuses provide upper and lower spaced-apart primary barriers. The methods in additional aspects include making an exit opening through the tubing and an exit opening through the casing, each exit opening located between the first sealing apparatus and the second sealing apparatus. In other aspects the methods include drilling a lateral wellbore from the exit opening through the casing. Apparatus is disclosed that is useful in such methods.

6202752, Mar 20, 2001

Feb 18, 1999

9/252504

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

Weatherford/Lamb, Inc. - Houston TX

E21B 704

166298

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.

6886631, May 3, 2005

Aug 5, 2002

10/212672

Paul Wilson - Houston TX, US
Kevin L. Gray - Friendswood TX, US
John D. Roberts - Spring TX, US
Corey E. Hoffman - Magnolia TX, US

Weatherford/Lamb, Inc. - Houston TX

E21B049/08

16625007, 16625017, 166 53, 166187

Embodiments of the present invention generally provide a method, apparatus, and system for monitoring conditions in wellbore in real time prior to setting an inflatable element in the wellbore. The inflatable element is inflated with an inflation tool run on a cable with one or more electrically conductive wires (the cable is commonly referred to as a “wireline”). One or more sensors, internal or external to the inflation tool, are monitored before setting the inflatable element to verify well conditions are compatible with the inflatable element. The sensors may be internal or external to the inflation tool.

5620051, Apr 15, 1997

Jun 3, 1996

8/655087

Thurman B. Carter - Pearland TX
John D. Roberts - Spring TX

Weatherford U.S., Inc. - Houston TX

E21B 2900

166298

A downhole wellbore tool has been developed which has a lower movable valve apparatus which, when it contacts a member in a wellbore or in a tubular in a wellbore, is moved to close off fluid flow through the item to which the valve apparatus is attached. In one aspect, such a valve apparatus is used below a mill above which is positioned a downhole motor which rotates the mill for milling. Actuation of the valve apparatus results in a cessation of the circulation of the motive fluid flowing to and through the motor so that milling stops. In one aspect the valve is selectively operable so that milling may be resumed. In another aspect such a tool is useful for indicating a known location in a wellbore when a decrease or cessation in fluid flow or a decrease in pressure is noticed at the surface.