公开(公告)号：CA2887737C

公开(公告)日：2017-02-14

申请号：CA2887737

申请日：2015-04-08

Applicant: WEATHERFORD/LAMB INC

Inventor： GALLOWAY GREGORY G

IPC: E21B29/00

Abstract: A tubular expansion system is configured to expand a tubular in a wellbore. The expansion system may include an expandable tubular having a lower section and an upper section; a first expansion member configured to expand the lower section; and a second expansion member configured to expand the upper section. The upper section may be expanded to have an inner diameter greater than an inner diameter of the expanded lower section. The second expansion member may be engaged and moved by the first expansion member and/or one or more support members to expand the upper section.

公开(公告)号：CA2640104C

公开(公告)日：2016-10-18

申请号：CA2640104

申请日：2003-12-12

Applicant: WEATHERFORD/LAMB INC

Inventor： GALLOWAY GREGORY G ,  BRUNNERT DAVID J ,  HEWSON JAMES ADAM ,  BURGE PHILLIP MICHAEL

IPC: E21B7/20 ,  E21B7/06 ,  E21B7/08 ,  E21B7/12 ,  E21B17/07 ,  E21B33/04 ,  E21B34/06 ,  E21B41/00

Abstract: The present invention generally relates to methods for drilling a subsea wellbore and landing a casing mandrel in a subsea wellhead. Also disclosed are methods of forming a supported bore comprising the steps of: mounting a first drill bit on a first tubular member; drilling a first bore to a first depth; inserting a second drill bit mounted on a second tubular member within the first tubular member; and directing the second drill bit towards a wall portion of the first tubular member and drilling through said wall portion and drilling a second bore to a second depth.

公开(公告)号：CA2808302C

公开(公告)日：2017-05-23

申请号：CA2808302

申请日：2004-02-02

Applicant: WEATHERFORD/LAMB INC

Inventor： GIROUX RICHARD L ,  GALLOWAY GREGORY G ,  LE TUONG THANH ,  JACKSON RAYMOND H ,  NAZZAL GREGORY R ,  SWARR JAMES C ,  BRUNNERT DAVID J ,  BEASLEY WILLIAM M ,  LIRETTE BRENT J ,  ODELL ALBERT C ,  TERRY JIM ,  MCKAY DAVID ,  ALKHATIB SAMIR ,  WARDLEY MIKE

IPC: E21B7/06 ,  E21B7/08 ,  E21B7/18 ,  E21B7/20 ,  E21B21/10 ,  E21B33/14 ,  E21B34/00 ,  E21B41/00 ,  E21B47/01

Abstract: Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.