公开(公告)号：DE602006004122D1

公开(公告)日：2009-01-22

申请号：DE602006004122

申请日：2006-09-12

Applicant: WEATHERFORD LAMB

Inventor： MACAULAY IAIN C ,  HARRALL SIMON J

IPC: E21B17/042 ,  E21B43/10

Abstract: Methods and apparatus for making a connection that can be rotationally locked by expansion are disclosed. Threaded tubular ends include a slot cut (106) across a thread (108) at a location along the circumference of the thread. Threading two tubular members that have the slot disposed in either or both of a pin or box end of the tubular members establishes the connection. The slots represent no impediment to the make-up or break-out of a box by pin connection prior to expansion. During expansion of the connection, the threads of either the box or pin end are forced via plastic flow into the slot in the corresponding thread. This results in locking the connection and preventing relative rotation between the two tubular members, which could otherwise loosen the connection.

公开(公告)号：CA2551950C

公开(公告)日：2008-10-28

申请号：CA2551950

申请日：2006-07-13

Applicant: WEATHERFORD LAMB

Inventor： LUKE MIKE A ,  HARRALL SIMON J

IPC: E21B29/00 ,  E21B43/10

Abstract: An expander tool includes segments capable of deflecting inward in response to a restriction encountered while expanding a tubular downhole. The expander tool includes an inner mandrel having a tapered surface about its outside diamete r, the segments disposed around the inner mandrel with corresponding tapered surfac es in contact with the tapered surface of the inner mandrel and a compression slee ve disposed around the inner mandrel. A compressive load on the compression sleeve applies a preload force biasing the segments to a raised position on the tapered surface and hence an extended position. This preload enables expansion of the tubula r with the segments in the extended position. Upon reaching the restriction, an increased pull force on the expander tool forces the segments down the tapered surface of t he inner mandrel against the bias of the preload to a retracted position such that th e expander tool assumes a smaller maximum outer diameter.

公开(公告)号：CA2472793A1

公开(公告)日：2004-12-30

申请号：CA2472793

申请日：2004-06-29

Applicant: WEATHERFORD LAMB

Inventor： COON ROBERT J ,  HARRALL SIMON J

IPC: E21B33/10 ,  E21B43/10 ,  E21B29/00

Abstract: The present invention provides apparatus and methods for completing a wellbo re using expandable tubulars. Particularly, the invention relates to a system o f completing a wellbore through the expansion of tubulars. More particularly, embodiments of the present invention relate to the concurrent expansion of a first and second tubular, wherein the first tubular contains a polished bore receptacle configured to sealingly receive a portion of the second tubular thereby providing a sealable connection therebetween.

公开(公告)号：CA2452798A1

公开(公告)日：2004-06-12

申请号：CA2452798

申请日：2003-12-10

Applicant: WEATHERFORD LAMB

Inventor： WHANGER JAMES K ,  HARRALL SIMON J

IPC: E21B29/00 ,  E21B33/12 ,  E21B43/10 ,  E21B23/06 ,  E21B33/128 ,  E21B43/08

Abstract: The present invention generally relates to an apparatus and method for sealing a wellbore. In one aspect an apparatus for sealing a wellbore is provided. The apparatus includes a swelling elastomer disposed around an outer surface of the tubular body. The swelling elastomer is isolated from wellbore fluid in an annulus. However, upon the application of an outwardly directed force to an inner surface of the tubular body, the tubular body expands radially outward causi ng the swelling elastomer to contact the wellbore while exposing the swelling elastomer to an activating agent via the one or more apertures, thereby causing the swelling elastomer to create a pressure energized seal with one or more adjacent surfaces in the wellbore. In another aspect, a liner assembly for isolating a zone in a wellbore is provided. In yet another aspect, a method for sealing a wellbore is provided .

公开(公告)号：CA2641238C

公开(公告)日：2017-11-21

申请号：CA2641238

申请日：2008-10-20

Applicant: WEATHERFORD/LAMB INC

Inventor： HANNEGAN DON M ,  BAILEY THOMAS F ,  CHAMBERS JAMES W ,  WOODRUFF DAVID R ,  HARRALL SIMON J

IPC: E21B21/08 ,  E21B33/02 ,  E21B33/06

Abstract: A system and method is provided for a low profile rotating control device (LP- RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs.

公开(公告)号：CA2805630C

公开(公告)日：2017-10-03

申请号：CA2805630

申请日：2011-07-15

Applicant: WEATHERFORD/LAMB INC

Inventor： RIOS ARISTEO III ,  CHAMBERS JAMES W ,  BAILEY THOMAS F ,  WAGONER DANNY W ,  HARRALL SIMON J

IPC: E21B33/038 ,  E21B33/08

Abstract: A latch (116) and method for use is provided for latching an item of oilfield equipment (104). The latch has a housing (114) containing a latch member (116), and the latch member is movable between a radially engaged position in which it is engaged with the item of oilfield equipment, and a radially retracted position in which it is disengaged from the item of oilfield equipment. An actuator is configured to drive the latch member into the radially engaged position. Further, the actuator (118) is configured to drive the latch member toward the radially retracted position.

公开(公告)号：CA2881342C

公开(公告)日：2016-08-02

申请号：CA2881342

申请日：2006-08-09

Applicant: WEATHERFORD/LAMB INC

Inventor： HASHEM GHAZI J ,  HARRALL SIMON J ,  RING LEV M ,  EVANS MERLE E

IPC: E21B17/042 ,  E21B17/08

Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. A first tubular segment has a pin member and a second tubular segment has a box member. The pin member includes threads, a pin nose and a groove formed in the pin nose. The box member includes a rib and threads that engage with the pin member. The rib can rest within, and contact, a portion of the groove when the threaded connection is made up prior to expansion. The groove is sized to allow the rib to move within the groove, from a contact point at a first end of the groove to a second contact point at a second end of the groove, resulting from axial movement of the pin nose during radial expansion of the connection.

公开(公告)号：AU2014302291A1

公开(公告)日：2016-01-21

申请号：AU2014302291

申请日：2014-06-26

Applicant: WEATHERFORD LAMB

Inventor： MCDOWELL CHRISTOPHER L ,  NOSKE JOE ,  KING KYLE ALLEN ,  HARRALL SIMON J

IPC: E21B34/10 ,  E21B34/14

Abstract: An isolation valve for use in a wellbore includes: a tubular housing; an upper flapper disposed in the housing and pivotable relative thereto between an open position and a closed position; an upper piston operable to open or close the upper flapper; a lower flapper disposed in the housing and pivotable relative thereto between an open position and a closed position; a lower piston operable to open the lower flapper; an opener passage in fluid communication with the pistons and an opener hydraulic coupling; and a closer passage in fluid communication with the pistons and a closer hydraulic coupling.

公开(公告)号：CA2809156C

公开(公告)日：2015-12-08

申请号：CA2809156

申请日：2008-07-25

Applicant: WEATHERFORD LAMB

Inventor： IBLINGS DAVID ,  BAILEY THOMAS F ,  BANSAL R K ,  STEINER ADRIAN ,  LYNCH MICHAEL ,  HARRALL SIMON J

IPC: E21B21/10 ,  E21B19/16 ,  E21B21/12

Abstract: In one embodiment, a method for drilling a wellbore includes injecting drilling fluid into a top of a tubular string disposed in the wellbore at a first flow rate and rotating a drill bit, wherein the tubular string includes the drill bit disposed on a bottom of the string, tubular joints connected together, a longitudinal bore therethrough, a port through a wall thereof, and a sleeve in fluid communication with a hydraulic chamber and operable between an open position where the port is exposed to the bore and a closed position where a wall of the sleeve is disposed between the port and the bore; and injecting drilling fluid into the port at a second flow rate while adding a tubular joint or stand of joints to the tubular string, wherein injection of drilling fluid into the tubular string is continuously maintained between drilling and adding the joint or stand to the tubular string.

公开(公告)号：CA2742767C

公开(公告)日：2014-05-27

申请号：CA2742767

申请日：2009-11-10

Applicant: WEATHERFORD LAMB

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 wellbore. 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.