-
公开(公告)号：CA2694482C
公开(公告)日：2013-05-28
申请号：CA2694482
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
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. The tubular string includes: a drill bit tubular joints connected together, a longitudinal bore therethrough, and a port through a wall thereof. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The cuttings and drilling fluid (returns) flow to the surface via an annulus defined between the tubular string and the wellbore. The method further includes rotating the drill bit while injecting the drilling fluid; remotely removing a plug from the port, thereby opening the port; 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. The injection of drilling fluid is continuously maintained between drilling and adding the joint or stand to the drill string. The method further includes remotely installing a plug into the port. A clamp specially adapted to carry out this method is also disclosed.
-
公开(公告)号：CA2555709C
公开(公告)日：2012-10-02
申请号：CA2555709
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
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. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.
-
公开(公告)号：CA2803957A1
公开(公告)日：2012-01-05
申请号：CA2803957
申请日：2011-06-28
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS F , TILTON FREDERICK THOMAS , HANNEGAN DON M , ANDERSON WAYBOURN J JR , HARRALL SIMON J
IPC: E21B33/08
Abstract: A sealing element (10, 18) for sealing an oilfild component (DS) the sealing element having a bore fore receiving the oilfild component, the sealing element comprising : - a seal supporting section (16, 24) - a sealing section (21, 13) having an inwardly facing bore surface; and - a profile (12, 20 ) formed on said sealing section inwardly facing bore surface to seal the oilfield component while communicating a fluid between said sealing section and the oilfield component.
-
公开(公告)号：CA2844909A1
公开(公告)日：2010-05-14
申请号：CA2844909
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 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：AU2008282452A1
公开(公告)日：2009-02-05
申请号：AU2008282452
申请日：2008-07-25
Applicant: WEATHERFORD LAMB
Inventor： BANSAL R K , STEINER ADRIAN , LYNCH MICHAEL , HARRALL SIMON J , BAILEY THOMAS F , IBLINGS DAVID
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. The tubular string includes: a drill bit disposed on a bottom thereof, tubular joints connected together, a longitudinal bore therethrough, and a port through a wall thereof. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The cuttings and drilling fluid (returns) flow to the surface via an annulus defined between the tubular string and the wellbore. The method further includes rotating the drill bit while injecting the drilling fluid; remotely removing a plug from the port, thereby opening the port; 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. The injection of drilling fluid into the tubular string is continuously maintained between drilling and adding the joint or stand to the drill string. The method further includes remotely installing a plug into the port, thereby closing the port. The first and second flow rates may be substantially equal or different.
-
Patent Agency Ranking
公开(公告)号：CA2490506C
公开(公告)日：2008-08-26
申请号：CA2490506
申请日：2004-12-17
Applicant: WEATHERFORD LAMB
Inventor： HARRALL SIMON J
Abstract: A method and apparatus for a wellbore expandable connection is disclosed. The connection may include a pin having an outward tapered threaded section and a box having an inward tapered threaded section. The threaded sections form a connection of a predetermined integrity upon make-up. An embodiment of the connection includes at least one interface area of the connection that lacks intimate contact between the pin and the box upon initial make-up. Either the box or the pin, or both, have a friction surface at the interface area. Radial expansion of the connection places the pin in contact with the box at the interface area such that the friction surface between them locks the connection. In one embodiment, the connection includes a receptacle profiled in a portion of the box that provides space within the connection for material that extrudes from the pin during expansion of the connection.
-
公开(公告)号：CA2472793C
公开(公告)日：2007-05-29
申请号：CA2472793
申请日：2004-06-29
Applicant: WEATHERFORD LAMB
Inventor： HARRALL SIMON J , COON ROBERT J
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：CA2865078A1
公开(公告)日：2007-02-11
申请号：CA2865078
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
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. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, an axial gap is formed between the pin elements of the mating tubulars.
-
公开(公告)号：CA2452798C
公开(公告)日：2006-09-05
申请号：CA2452798
申请日：2003-12-10
Applicant: WEATHERFORD LAMB
Inventor： HARRALL SIMON J , WHANGER JAMES K
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：CA2490506A1
公开(公告)日：2005-06-19
申请号：CA2490506
申请日：2004-12-17
Applicant: WEATHERFORD LAMB
Inventor： HARRALL SIMON J
Abstract: A method and apparatus for a wellbore expandable connection is disclose d. The connection may include a pin having an outward tapered threaded section and a box having an inward tapered threaded section. The threaded sections form a connection of a predetermined integrity upon make-up. An embodiment of the connection includes at least one interface area of the connection that lacks intimate contact between the pin and the box upon initial make-up. Either the box or the pin, or both, have a friction surface at the interface area. Radial expansion of the connection places the pin in contact with the box at the interface area such that the friction surface between them locks the connection. In one embodiment, the connection includes a receptacle profiled in a portion of the box that provides space within the connection for material that extrudes from the pin during expansi on of the connection.
-
-
-
-
-
-
-
-
-
Search Results
70
records
(took 0.023 seconds)
