公开(公告)号：AU2001262535B2

公开(公告)日：2005-12-15

申请号：AU2001262535

申请日：2001-06-05

Applicant: WEATHERFORD/LAMB INC

Inventor： SPIELMAN WILLIAM ALAN ,  BLIZZARD WILLIAM ALLAN JR ,  BAILEY THOMAS ,  KUCK MARC DAVID ,  ROBERTS JOHN DOUGLAS ,  BARRY ANDREW ARTHUR ,  MCCLUNG GUY LAMONTE III ,  SINGLETON TEME FORREST ,  CARTER THURMAN BEAMER ,  JOHNSON MONTE IRA ,  ROBERTSON ROBERT EUGENE

IPC: E21B41/00 ,  E21B7/06 ,  E21B10/46 ,  E21B10/50 ,  E21B29/06

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 and, 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

公开(公告)号：AU2003219133A8

公开(公告)日：2003-09-09

申请号：AU2003219133

申请日：2003-02-07

Applicant: WEATHERFORD/LAMB INC

Inventor： HAUGEN DAVID MICHAEL ,  ROBERTS JOHN DOUGLAS

IPC: E21B7/06 ,  E21B7/08 ,  E21B17/07 ,  E21B27/00 ,  E21B29/02 ,  E21B29/06

Abstract: 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.