Weatherford/lamb, Inc.

Andrew Arthur Barry

David Michael Haugen

Thomas Floyd Bailey

John Douglas Roberts

Marc David Kuck

Robert Eugene Robertson

Teme Forrest Singleton

Monte Ira Johnson

William Alan Spielman

William Allen Blizzard, Jr

Guy LaMont McClung, Iii

Thurman B Carter

Guy Lamonte McClung, Iii

Thurman James Carter

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.

Wellbore liner system

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.

Wellbore milling methods

Growing community of inventors

Missouri City, TX, United States of America

Andrew Arthur Barry