公开(公告)号：NO341483B1

公开(公告)日：2017-11-27

申请号：NO20074526

申请日：2007-09-07

Applicant: WEATHERFORD/LAMB INC

Inventor： BRUNNERT DAVID J ,  HARRALL SIMON ,  BELCHER GARY ,  STEINER ADRIAN ,  SCHMIGEL KEVIN ,  NOTT DARCY ,  TODD RICHARD ,  STANLEY JIM

IPC: E21B21/08 ,  E21B17/042

Abstract: I en utførelsesform inkluderer en fremgangsmåte for boring av et borehull en handling med å bore borehullet ved å injisere borefluid gjennom en rørstreng anbrakt i borehullet, idet rørstrengen omfatter en borekrone anordnet ved en bunn av rørstrengen. Borefluid kommer ut av borekronen og medfører borekaks fra borekronen. Borefluid og borekaks (returnerer) strømmer til en overflate av borehullet via et ringrom definert ved en ytre overflate av rørstrengen og en indre overflate av borehullet. Metoden inkluderer videre en handling utført under boring av borehullet med å måle et første ringromstrykk (FAP) ved bruk av en trykkføler festet til en fôringsrørstreng som henger ned fra et brønnhode i borehullet. Fremgangsmåten inkluderer videre en handling utført under boring av borehullet med å kontrollere et andre ringromstrykk (SAP) utøvet på en formasjon eksponert overfor ringrommet.

公开(公告)号：NO337070B1

公开(公告)日：2016-01-11

申请号：NO20061019

申请日：2006-03-01

Applicant: WEATHERFORD/LAMB INC

Inventor： BAILEY THOMAS FLOYD ,  BRUNNERT DAVID J ,  HAUGEN DAVID MICHAEL ,  SMITH KEVIN ,  BANSAL RAM K ,  FULLER TOM ,  ROOYAKKERS ROY W ,  SKINNER GRAHAM ,  TILTON FREDERICK T

IPC: E21B21/08 ,  E21B4/02 ,  E21B21/14 ,  E21B33/14

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：CA2844909C

公开(公告)日：2016-07-12

申请号：CA2844909

申请日：2009-11-10

Applicant: WEATHERFORD/LAMB INC

Inventor： XU WEI JAKE ,  ODELL ALBERT C II ,  HARRALL SIMON J ,  REDLINGER THOMAS M ,  VREELAND CHRISTOPHER M ,  ANTOINE ANDREW ,  BRUNNERT DAVID J ,  LAIRD TOMMY ,  MOODY MICHAEL ,  TILTON FREDERICK T

IPC: E21B10/32

Abstract: Embodiments of the present invention generally relate to extendable cutting tools for use in a well bore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

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.

公开(公告)号：CA2744842C

公开(公告)日：2017-02-07

申请号：CA2744842

申请日：2008-03-31

Applicant: WEATHERFORD/LAMB INC

Inventor： NOSKE JOE ,  IBLINGS DAVID ,  PAVEL DAVID ,  BRUNNERT DAVID J ,  SMITH PAUL ,  GRAYSON MICHAEL BRIAN

IPC: E21B34/06 ,  E21B34/14

Abstract: Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.