Seal Or Bushing Insertion Or Removal Patents (Class 166/85.3)
  • Patent number: 9976376
    Abstract: A fluid-driven adapter for a mineral extraction system is provided. The adapter includes a sleeve (e.g., annular piston) that engages a mandrel disposed in a wellhead component and moves in an axial direction in response to fluid pressure. The adapter moves the mandrel between a first position and a second position to open or close passages in the wellhead component. The adapter includes a lock ring that moves in response to fluid pressure and that locks the adapter to a wellhead assembly to prevent axial movement of the adapter. Methods of operation are also provided.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: May 22, 2018
    Assignee: Cameron International Corporation
    Inventors: Kirk Guidry, Dennis P. Nguyen
  • Publication number: 20150129243
    Abstract: A system and method is provided for hydraulically presetting a metal-to-metal seal, which may be installed in an annular space between wellhead components. A hydraulic running tool may be landed on a first wellhead component and coupled to a second wellhead component, for example, via a hydraulic or mechanical coupling assembly. Fluid pressure may then be applied to the hydraulic running tool to move the components axially together, thereby setting the metal-to-metal seal (i.e., axially compressing and radially expanding the seal). A coupling may secure the wellhead components in place relative to one another, while fluid pressure is being applied so that the metal-to-metal seal remains in the set position after the hydraulic tool is removed.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 14, 2015
    Inventor: Dennis P. Nguyen
  • Patent number: 9022126
    Abstract: A system and method for replacing equipment at a wellsite is provided. The wellsite has a subsea stripper installed proximate a subsea borehole. The system has a conveyance for delivering a BHA into the subsea borehole. The system has a subsea stripper having a central bore for passing the conveyance and the BHA therethrough, and at least one actuator connected to the subsea stripper for actuating a packer whereby the wellbore is sealed. The system has at least one replaceable seal assembly for installation within the stripper. The replaceable seal assembly has at least one packer extendable within the subsea stripper to form a seal thereabout and at least one locator sleeve for positioning the seal assembly in an install position within the subsea stripper. The replaceable seal assembly has a frangible member for connecting the seal assembly to the conveyance prior to deployment in the subsea stripper.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 5, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: Jeffrey Thomas Melancon, Denzal Wayne Van Winkle, James Allen Douty
  • Publication number: 20150114666
    Abstract: An well assembly having a housing with an inner surface, the assembly including a tubular member inserted in the housing and having an outer surface. The assembly further includes a plurality of protrusions extending from one of the inner or outer surfaces, the protrusions separated by gaps defined between adjacent protrusions. In addition, the well assembly includes a metal to metal seal pressed against and deformed by the protrusions. A plurality of hollow tubes are provided for insertion in the gaps between the protrusions, the tubes being collapsible upon engagement with the metal to metal seal.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: Vetco Gray Inc.
    Inventors: Baozhi Zhu, Jeffrey Allen Raynal, Nicholas Peter Gette
  • Patent number: 8960276
    Abstract: A wellhead seal device forms metal seals in an annular space between inner and outer tubular members such as a rough casing held within aligned casing and tubing heads. An annular metal sealing sleeve has a lower portion seated in the annular space, and an upper portion which forms an inner sealing annulus adjacent the outer wall of the inner tubular member. A metal seal ring and a wedge ring are located in the inner sealing annulus. A retaining ring is retained by the upper portion above the wedge ring. Threaded seal energizing members extend through the retaining ring to push downwardly on the wedge ring and compress the metal seal ring radially inwardly to form a metal seal to the inner tubular member and thus seal the inner sealing annulus. The lower portion of the annular metal sealing sleeve may seal to the casing head and to the casing.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 24, 2015
    Assignee: Stream-Flo Industries Ltd.
    Inventors: Heinrich Lang, Tony M. Lam, Tianle Guo
  • Patent number: 8960311
    Abstract: A high pressure seal adapter for a conductor housing of a wellhead, and a method of completing a well having a conductor housing attached thereto, are disclosed. The high pressure seal adapter has a unitary body including a first circular bore extending through the unitary body. The first circular bore has a circular perimeter extending beyond a centerline of the unitary body. The unitary body further includes a second circular bore adjacent the first circular bore and extending through the unitary body. The seal adapter is configured to be installed in the conductor housing. The method includes providing such a high pressure seal adapter and installing the high pressure seal adapter in the conductor housing.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: February 24, 2015
    Assignee: KOP Surface Products Singapore Pte. Ltd.
    Inventors: Wee Ming Ong, Yeong Soon Tang
  • Patent number: 8950752
    Abstract: A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members and a face seal between inner wellhead members. The face seal is created by two opposing sealing surfaces on inner wellhead members that sealingly engage each other. The inner wellhead members that interact to form a face seal may be a casing hanger, bridging hanger, or lockdown hanger. A wicker profile formed on one of the opposing seal surfaces bites into the opposing seal surface in response to a load. The face seal is designed such that well pressure enhances the face seal.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: February 10, 2015
    Assignee: Vetco Gray Inc.
    Inventors: Nicholas Peter Gette, Armando Faz, Stephen Ellis
  • Patent number: 8944156
    Abstract: Systems and methods are provided for isolating a landing ring of a hanger from pressure inside a wellhead and sealing a portion of the hanger via a seal assembly. The hanger includes a floating ring axially interposed between the landing ring and the seal assembly, and between the landing ring and a shoulder of the hanger. The seal assembly includes one or more radially retractable elastomeric seals that are radially retracted during run in of the seal assembly. The radially retractable seals may be radially expanded via shearing of one or more shear pins by torque applied to the seal assembly. The seal assembly may also include one or more metal seals having a plurality of rings having a nib configuration that includes three smaller nibs for sealing and a larger flat nib for withstanding the energizing load on the seal assembly.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: February 3, 2015
    Assignee: Cameron International Corporation
    Inventors: Lim Haw Keat, Joseph Chan
  • Patent number: 8939218
    Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: January 27, 2015
    Assignee: JTB Tools & Oilfield Services, LLC
    Inventors: Barry Marshall, Gary Marshall
  • Patent number: 8936092
    Abstract: A system in some embodiments includes a system, having a seal assembly, including an inner energizing ring, an outer energizing ring, a load ring disposed between the inner energizing ring and the outer energizing ring, a sealing element, and a lock ring. Further other embodiments provide a method of sealing, including rotating an inner energizing ring in a direction to move the inner energizing ring in a first axial direction to seat a seal, rotating an outer energizing ring in the direction to wedgingly engage and set a lock ring in a radial direction, and rotating a load ring in the direction to move the load ring in a second axial direction to set the lock ring.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 20, 2015
    Assignee: Cameron International Corporation
    Inventors: Dennis P. Nguyen, Thomas E. Taylor
  • Patent number: 8899315
    Abstract: A wellhead system includes a bypass sleeve for temporarily isolating portions of a wellhead assembly from pressurized fracing fluid. The bypass sleeve may include a generally tubular body having a tool interface, a lock ring disposed at least partially around the body, and an anti-rotation device coupled to the body. The anti-rotation device includes a resilient member disposed in a cavity in the body, and an anti-rotation member biased away from the body by the resilient member. The anti-rotation member extends radially outward from the body.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: December 2, 2014
    Assignee: Cameron International Corporation
    Inventors: Dennis P. Nguyen, Jay Patrick Painter
  • Patent number: 8881801
    Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: November 11, 2014
    Assignee: JTB Tools & Oilfield Services, LLC
    Inventors: Barry Marshall, Gary Marshall
  • Patent number: 8875798
    Abstract: Systems and methods for replacing equipment at a wellsite, the wellsite having a subsea stripper installed proximate a subsea borehole. The system has at least one seal assembly portion, at least one seal replacement arm and an actuator. The seal assembly portion(s) is (are) positionable in the subsea stripper and replaceable therefrom. The seal assembly portion(s) has (have) a packer extendable within the subsea stripper to form a seal about the subsea stripper. The seal replacement arm(s) is (are) for replacing the seal assembly portion(s) through a door of the subsea stripper. The actuator is for remotely actuating the seal replacement arm(s) to engage the seal assembly portion(s) whereby the seal assembly portion(s) is (are) remotely replaceable.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: November 4, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventor: Denzal Wayne Van Winkle
  • Patent number: 8851194
    Abstract: A seal assembly between a wellhead housing having a bore and a casing hanger, has an inner seal leg for sealing against hanger and an outer seal leg for sealing against housing. An extension extends downward from outer seal leg and has a downward facing shoulder that rests on an upward facing shoulder formed on a nose ring. Connection connects seal ring to the nose ring with a lower portion of the nose ring resting on the upward facing shoulder of the casing hanger. Bellows are formed on the nose ring to increase lockdown capacity. Bellows have an inner surface that faces an outer profile of the hanger, and an outer surface on the bellow that faces the bore of the housing. When the bellows are axially collapsed, they expand radially outward and contract radially inward into the bore of the housing and the outer profile of the hanger.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: October 7, 2014
    Inventors: David L. Ford, Daniel C. Benson, Leonard Landriault
  • Patent number: 8844652
    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. An embodiment allows a LP-RCD to be removably disposed with a LP-RCD housing by rotating a bearing assembly rotating plate. A sealing element may be removably disposed with the LP-RCD bearing assembly by rotating a seal retainer ring. Alternatively, a sealing element may be removably disposed with the LP-RCD bearing assembly with a seal support member threadedly attached with the LP-RCD bearing assembly. The seal support member may be locked in position with a seal locking ring removably attached with threads with the LP-RCD bearing assembly over the seal support member. Spaced apart accumulators may be disposed radially outward of the bearings in the bearing assembly to provide self lubrication to the bearings.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 30, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Jonathan P. Sokol, Danny W. Wagoner, Thomas F. Bailey, Aristeo Rios, III, James W. Chambers, Don M. Hannegan
  • Patent number: 8746352
    Abstract: A seal assembly for use between wellbore tubulars employs an inner seal ring partially circumscribed by an outer seal ring. The seal rings are axially slidable with respect to one another and can be made from pliable inelastic materials such as graphite or a fluoropolymer. The seal rings contact one another along profiled surfaces that are angled such that by axially urging the seal rings towards one another produces a bulge in the seal assembly directed radially outwards and inwards. The bulging seal rings come into contact with opposing sides of the wellbore tubulars to define a sealing surface. Axial supports at opposing lateral ends of the seal rings maintain the seal between the tubulars.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: June 10, 2014
    Assignee: Vetco Gray Inc.
    Inventor: Michael Shaw
  • Patent number: 8636072
    Abstract: A wellhead system comprising a seal with a restraining member adapted to cooperate with a housing to restrict axial movement of the seal. The seal is adapted to form a seal between the housing, such as a wellhead, and a tubular member, such as a casing hanger. The seal has a latch ring that is expanded outward as the seal is installed within the wellhead. Axial movement of the seal is restricted by engagement between the expanded latch ring and the inner profile of the housing. The seal and housing may be adapted so that a portion of the seal is received by a recess in the inner profile of the housing.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: January 28, 2014
    Assignee: Vetco Gray Inc.
    Inventors: Nicholas P. Gette, Daniel W. Fish
  • Publication number: 20130248196
    Abstract: A high capacity single trip lockdown bushing and a method to operate the same is disclosed. The lockdown bushing includes a tubular body that carries a locking ring and an energizing ring about an upper portion of the tubular body. The energizing ring includes a cam portion interposed between the locking ring and the tubular body so that the cam portion and the locking ring overlap along mating cam surfaces in an unset position. A running tool carries the lockdown bushing to land on a casing hanger. The running tool is actuated to drive the energizing ring downward so that the mating cam surfaces interact to move the locking ring radially outward into engagement with wickers formed in a wellhead.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Applicant: VETCO GRAY INC.
    Inventors: Nicholas Peter Gette, Carl F. Boehm, Daniel Ralph Barnhart
  • Publication number: 20130199801
    Abstract: The techniques herein relate to a blowout preventer a wellhead of a wellbore penetrating a subterranean formation. The blowout preventer includes a housing having a bore therethrough, a segment carrier positionable in the housing, and a piston. The segment carrier includes a carrier ring for receiving the mandrel and a plurality of segments pivotally movable radially thereabout. The piston is operatively connectable to the plurality of segments and actuatable for moving the plurality of segments between a disengaged and an engaged position about the mandrel.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Christopher Dale Johnson, James William Weir, Dean Allen Bennett
  • Patent number: 8499842
    Abstract: A dual barrier plug system includes a frac spool, having a dual barrier plug disposed within the interior of the frac spool; a valve selector member disposed within the interior of the dual barrier plug; and the plurality of seals are used to seal fluid flow from below the frac spool, and the seals provide two barriers to each fluid flow.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 6, 2013
    Assignee: GE Oil & Gas Pressure Control LP
    Inventors: Khang Van Nguyen, Martin Anthony Trumbull
  • Patent number: 8443898
    Abstract: A wellhead safety device can include a tubular with outer surface portions having different diameters. A first seal groove can be disposed on a first outer diameter. A locking groove can be formed in a first outer surface portion, and can have sloping sides that taper to a center for receiving locking pins of a tubing head. A sloping guide can extend from a first end towards a central bore of the wellhead safety device. A second seal groove can be disposed on a second outer surface portion for containing a second seal. A guide shoulder can be formed on a second end, and can taper from the second outer surface portion to the central bore. A J-latch can be formed in the first end. A landing shoulder can stop the wellhead safety device from slipping into wellbores.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: May 21, 2013
    Inventors: Tony D. McClinton, Buster Carl McClinton
  • Patent number: 8439120
    Abstract: A method of sealing annular space between an upright outer tube and an upright inner tube extending within the outer tube along an axial direction thereof involves pouring a liquid seal material into the annular space onto a support member fitted within the annular space between the outer tube and the inner tube in a manner substantially closing around the inner tube. The liquid seal material is poured in an amount sufficient to fill radial space between the inner tube and the outer tube fully around the inner tube, the liquid seal material is then cured to form an annular seal between the inner tube and the outer tube. The method is useful in sealing of the annular spacing between the surface and production casing of a gas well and installing a venting system to facilitate controlled venting of the annular space.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: May 14, 2013
    Inventors: Dean Spence, Gord Blomgren, Randy Riske
  • Patent number: 8397825
    Abstract: A hydraulic lubricator assembly includes a spool for enclosing a downhole tool, wherein the spool comprises an upper end and a lower end. The hydraulic lubricator assembly further includes a pressure isolation connector attached to the upper end of the spool, wherein the pressure isolation connector includes a lower packing gland and an upper packing gland. A hydraulic assembly is positioned above the pressure isolation connector, wherein the hydraulic assembly comprises a rod connected to the downhole tool, and wherein the hydraulic assembly lowers the downhole tool into the wellbore.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: March 19, 2013
    Inventors: Larry G. Odom, Troy Rodgers
  • Publication number: 20130056200
    Abstract: A hydraulic setting tool. The tool is configured to allow hydraulic setting of a bridge plug, packer or other radially expansive mechanical well isolation mechanism. Wireline or slickline deployment may be utilized. In either case, parameters of the setting application may be recorded. In the case of wireline deployment such parameters and downhole data may be monitored in real-time allowing an operator to make intelligent setting application adjustments as necessary.
    Type: Application
    Filed: December 22, 2010
    Publication date: March 7, 2013
    Inventors: Ruben Martinez, Sarah Blake
  • Patent number: 8387701
    Abstract: A technique for subsea intervention operations utilizes a retrievable dynamic seal assembly. The retrievable dynamic seal assembly is deployed toward a seabed and locked into place within a tubular member at a subsea installation. During deployment, the dynamic seal assembly is releasably locked to an intervention tool string coupled to a conveyance. Once the dynamic seal assembly is locked in place within the tubular, the tool string is released and the dynamic seal assembly maintains a seal against the conveyance during an intervention operation.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: March 5, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: Andrea Sbordone
  • Patent number: 8381816
    Abstract: A method of flushing a wellbore fluid from a downhole tool containing a bearing package includes pumping hydraulic oil through at least one of a hydraulic inlet line and at least one of a pneumatic inlet line connected to the main housing and into an annulus formed between the bearing package and a main housing of the downhole tool, wherein the hydraulic oil replaces the wellbore fluid in the annulus, removing the wellbore fluid from the annulus through at least one hydraulic outlet line and at least one pneumatic outlet line connected to the main housing, pumping air through the at least one pneumatic inlet line connected to the main housing and removing the hydraulic oil from the at least one pneumatic inlet line connected to the main housing, and removing the hydraulic oil through at least one pneumatic outlet line connected to the main housing.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: February 26, 2013
    Assignee: Smith International, Inc.
    Inventors: Trung Leduc, Huward Paul Fontenot, Alberto Zubia, Robert James Costo
  • Patent number: 8347966
    Abstract: A system in some embodiments includes a system, having a seal assembly, including an inner energizing ring, an outer energizing ring, a load ring disposed between the inner energizing ring and the outer energizing ring, a sealing element, and a lock ring. Further other embodiments provide a method of sealing, including rotating an inner energizing ring in a direction to move the inner energizing ring in a first axial direction to seat a seal, rotating an outer energizing ring in the direction to wedgingly engage and set a lock ring in a radial direction, and rotating a load ring in the direction to move the load ring in a second axial direction to set the lock ring.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: January 8, 2013
    Assignee: Cameron International Corporation
    Inventors: Dennis P. Nguyen, Thomas E. Taylor
  • Publication number: 20120241175
    Abstract: Wellhead assemblies, seal assemblies, and methods of locking down an annulus seal disposed within an annulus between outer and inner wellhead members, are provided. A seal assembly is positioned in an annulus. An energizing member is axially translated downward to energize an annulus seal element and outwardly radially compress a high-strength lockdown member into contact with an inner diameter surface of a wellhead member. The wellhead member can include a set of wickers. During compression, the outer diameter surface of the lockdown member is plastically deformed onto the set of wickers.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 27, 2012
    Applicant: VETCO GRAY INC.
    Inventors: Gary Galle, Marc Minassian
  • Patent number: 8235125
    Abstract: A technique is provided for terminating tubing. In the technique, a tubing termination assembly is used to terminate control line tubing from a downhole safety valve at a wellhead component. The tubing termination assembly utilizes a seal ring to form a seal around control line tubing extending from a port through a wellhead component. A seating surface is provided in the seal ring, rather than in the wellhead component, to which a seal member is abutted to form the seal with the control line tubing. The seal ring also comprises a threaded portion to enable a threaded member to urge the seal member against the seating surface.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: August 7, 2012
    Assignee: Vetco Gray Inc.
    Inventor: Eugene A. Borak, Jr.
  • Patent number: 8201622
    Abstract: A protection sleeve (12) for locking over a seal (72) in a wellbore is described. The sleeve (12) is adapted for releasable engagement to a running tool (14) and has a locking mechanism (28) comprising first and second tubula members and a collet (56) is provided. One tubular member includes a profile adapted to mate with a profile of the seal (72). The sleeve (12) may be located on a work string (14), including a rotary drill string, and the invention also relates to methods of running in, setting, carrying out an intervention operation and retrieving the sleeve in a single run. The invention has particular application in Through Tubing-Rotary Drilling (TTRD).
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: June 19, 2012
    Assignee: Red Spider Technology Limited
    Inventors: Michael A. Reid, Irvine C. Brown
  • Patent number: 8091630
    Abstract: Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: January 10, 2012
    Assignee: Cameron Systems (Ireland) Limited
    Inventors: Ian Donald, John Reid
  • Patent number: 8087466
    Abstract: The invention relates to a centralization and running tool (CTR) in a subsea installation in connection with offshore related oil and gas exploration, where the subsea installation (SCM) is arranged to be placed on the ocean bottom or a drilling template and comprises a pipe-formed body (10), at least partially open at the top and extended, arranged to receive and carry through a drill stem (12) from a drilling rig or a drilling vessel. The centralization and running tool (20) is arranged to surround the drill stem (12) and to be placed in the pipe-formed body (10), and the centralization and running tool (20) comprises, together with the drill stem (12), a rotary packing housing (22) with a number of seals (24,26) that lie against the drill stem (12), and the packing housing (22), in accordance with the movements of the drill stem (12), is arranged for radial movement to take up angular deviations of the drill stem (12).
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: January 3, 2012
    Assignee: AGR Subsea AS
    Inventor: Arvid Iversen
  • Patent number: 8074724
    Abstract: A drilling system employs a set of bushings that protect seats used for casing hangers. The system includes one or more seat protectors that attach to a running tool. The running tool is lowered down the wellbore with the seat protectors attached and deposits a bushing at each surface to be protected. The running tool may retrieve the bushings as the running tool is withdrawn from the wellbore.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 13, 2011
    Assignee: Vetco Gray Inc.
    Inventors: Marc Minassian, Guilherme Eppinghaus, David L. Ford
  • Publication number: 20110290471
    Abstract: An improved Effluent Capture and Shutoff Pipe Friction Mounting Apparatus providing means for the prevention, collection, or stopping of effluent from a wellhead pipe (25) as a result of a blow out. Numerous configurations, offering both internal and external friction connections with the wellhead pipe (25) and for stopping or collecting flowing hydrocarbons (63) from a wellhead pipe (25) are presented. Through rigid attachment of the apparatus to the interior or exterior of a functioning or blown out wellhead pipe (25) the external force applied on the apparatus by the flowing hydrocarbons (63) or the resulting pressure differential between static hydrocarbons (64) and seawater (65) is overcome in the deployed state for all, and during deployment for some, of the configurations. Additional means are considered for ensuring fixity of the apparatus to the wellhead pipe (25) during deployment of the other configurations.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 1, 2011
    Inventor: Justin Bredar Cutts
  • Publication number: 20110259594
    Abstract: Disclosed is a maintenance device for an elongate, tubular hollow member (2) designed to conduct a fluid. Said maintenance device comprises a sealing mechanism (4) which is to seal a working zone (9) relative to surroundings (30) of the hollow member (2) and can be moved in one direction along the hollow member (2). A side of the sealing mechanism (4) that faces the hollow member (2) forms an at least partially curved surface and can be moved in the longitudinal direction of the hollow member (2), especially in order to be placed in the sealing position. A method for servicing an elongate, tubular hollow member (2) is also claimed.
    Type: Application
    Filed: November 24, 2009
    Publication date: October 27, 2011
    Applicant: ROSEN SWISS AG
    Inventor: Hermann Rosen
  • Publication number: 20110253388
    Abstract: Apparatus for the insertion of a pack-off into a recess in a bore of a wellhead body comprises an activating sleeve which has a portion disposed for engagement with the pack-off for the movement of the pack-off into the recess and body portions shaped for location on a datum member within the bore. The activating sleeve includes a plurality of apertures circumferentially spaced about the activating sleeve. A running tool which is adapted to move said activating sleeve into engagement with the packoff carries spring-loaded dogs each disposed in one of the apertures. Each of a plurality of releasing pins is positioned such that it enters a respective one of the apertures when the activating sleeve has caused the packoff to be located in the recess. The entry of the pins into the apertures causes depression of the dogs out of the apertures and allows the consequent release of the activating sleeve from the running tool.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 20, 2011
    Inventor: Daniel A. WILLOUGHBY
  • Publication number: 20110174501
    Abstract: A system and methodology for controlled entry of a tubing string, and cable adjacent thereto, into a wellbore. A stationary housing is fit to a wellhead and has a bore in communication with the wellbore. The cable can be laterally displaced from the bore into a cable access formed into the housing's side wall for fitting a sealing assembly to the bore and engages a sealing surface therein. The sealing assembly seals tubulars passing therethrough. The cable access interrupts the sealing surface. A cable bypass sub is fit to the cable access and permits the cable to extend sealingly from above the sealing surface to the wellbore wherein the cable bypasses the sealing assembly and sealing surface. A seal reconstitutes the interrupted portion of the sealing surface at the cable access.
    Type: Application
    Filed: July 23, 2010
    Publication date: July 21, 2011
    Applicant: Schlumberger Technology Corporation
    Inventors: John David Struthers, George James Michaud, Lawrence Gerald Cyr, Salem Ahmed Lotfi Elsayed
  • Publication number: 20110155395
    Abstract: Disclosed herein are methods and apparatus for releasing a releasable packer. The apparatus may include shear screws, a mechanism for isolating the shear screw from a shearing force. The mechanism for isolating the shear screw from a shearing force is selectively unlockable to expose the shear screw to the shearing force. The methods may include unlocking a mechanism protecting at least one shear screw, applying a shearing force to the at least one shear screw, and shearing the at least one shear screw.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: James D. Hendrickson, Baozhong Yang
  • Patent number: 7931078
    Abstract: A stuffing box apparatus for sealing between a polish rod in a hydrocarbon production well comprises a tubular housing arranged for connection to the well which has a bore therethrough to receive the polish rod. Sealing members are supported in the bore of the housing in an upper stack and a lower stack of smaller outer diameter separated by an intermediate bushing. An upper bushing compresses the upper stack against the intermediate bushing. The lower bushing fixes the lower stack against the bottom of the intermediate bushing. Each of the bushings includes a counter bore formed at one end which receives a wiper member arranged for sealing engagement between the bushing and the polish rod.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 26, 2011
    Assignee: Scope Production Developments Ltd.
    Inventors: Barton Toporowski, Dale Hockley, Perry Bateman
  • Patent number: 7861789
    Abstract: A method of completing a well having a casing hanger set in a subsea wellhead housing includes attaching a running tool to a tubular bridging hanger. A metal-to-metal inner seal is attached to a lower exterior portion of the bridging hanger and a metal-to-metal outer seal is located on an upper exterior portion of the bridging hanger. The assembly is lowered into the well and the lower exterior portion of the bridging hanger is inserted into the casing hanger. The inner seal is wedged between the casing hanger and the bridging hanger in response to weight of the running string. The running tool is actuated to set the outer seal between the upper exterior portion of the bridging hanger and the wellhead housing. Then, a tubing hanger is landed and sealed in the interior of the bridging hanger.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: January 4, 2011
    Assignee: Vetco Gray Inc.
    Inventor: John E. Nelson
  • Publication number: 20100314122
    Abstract: A system for performing intervention operations in subsea installations, including a tubular which connects a subsea installation to a surface vessel, a conveyance designed to enter subsea installation to perform an intervention, and a non-retrievable subsea dynamic seal, which prevents hydrocarbons from reaching the vessel. A surface dynamic seal can be provided. A method for subsea intervention using the system and a corresponding subsea dynamic seal apparatus are provided.
    Type: Application
    Filed: March 10, 2010
    Publication date: December 16, 2010
    Inventors: Andrea Sbordone, Keith A. Moriarty, Yves LeMoign, Rene Schuurman
  • Patent number: 7769260
    Abstract: A rod having an embedded optical fiber has a stiff composite outer layer (10) to make the rod self straightening to enable it to be pushed into a pipe or borehole from a spool. This can help enable a reduction of friction between rod and conduit and can enable longer reach. A barrier layer is provided to separate the fiber from the composite layer. The rod can be retrieved after use. The rod can be narrow enough to enable normal flow along the pipe or borehole, and can be injected and retrieved even when the pipe or borehole is pressurized. The fiber can be used for remote sensing of conditions along the conduit. Other tools can be inserted by the rod during the intervention.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: August 3, 2010
    Assignee: Sensornet Limited
    Inventors: Henning Hansen, Mahmoud Farhadiroushan, Richard Julius Kluth
  • Patent number: 7740080
    Abstract: A seal for use in sealing on a wellhead assembly, where the seal is pressure energized and comprises an annular element having an inverted portion on its outer portion along its length. The seal may further include upper and lower ring members sandwiching the element between the ring members. The seal is formable by adjoining the open surfaces of two “W” shaped annular seals along their edges thereby forming an element responsive to pressure.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: June 22, 2010
    Assignee: Vetco Gray Inc.
    Inventor: Stephen P. Fenton
  • Patent number: 7735562
    Abstract: Disclosed herein is a method of sealing a tieback to a tubular. The method includes, positioning a metal deformable member of the tieback within a tubular and contacting the tubular with a sleeve of the tieback. Moving the sleeve in a first axial direction thereby contacting and radially deforming a first portion of the deformable member by axially compressing the deformable member and sealably engaging the tubular with the radially deformed first portion.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: June 15, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Rodney D. Bennett, Sidney K. Smith, Jamie L. Imhoff, James M. Fraser, III
  • Patent number: 7644757
    Abstract: A fixed-point packoff element for a full-bore pressure isolation tool supports a primary seal and a test seal to permit the primary seal to be tested by injecting test fluid through a side port of a tubing head spool before the pressure isolation tool is rigged up for a well stimulation procedure.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: January 12, 2010
    Assignee: Stinger Wellhand Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Publication number: 20090260834
    Abstract: A rod having an embedded optical fibre has a stiff composite outer layer (10) to make the rod self straightening to enable it to be pushed into a pipe or borehole from a spool. This can help enable a reduction of friction between rod and conduit and can enable longer reach. A barrier layer is provided to separate the fibre from the composite layer. The rod can be retrieved after use. The rod can be narrow enough to enable normal flow along the pipe or borehole, and can be injected and retrieved even when the pipe or borehole is pressurised. The fibre can be used for remote sensing of conditions along the conduit. Other tools can be inserted by the rod during the intervention.
    Type: Application
    Filed: July 7, 2005
    Publication date: October 22, 2009
    Applicant: Sensornet Limited
    Inventors: Henning Henson, Mohmoud Farhadiroushan, Richard Julius Kluth
  • Patent number: 7416226
    Abstract: A system for connecting a stripper rubber to drilling head equipment comprises an adapter, a stripper rubber insert and a pin assembly. The adapter includes a primary bore, a groove extending around the primary bore, drill head equipment engaging structure adjacent the primary bore, and a pin assembly housing. The stripper rubber insert includes a vertically-upstanding flange configured for being engaged within the adapter groove. The flange includes a pin receptacle and the flange cooperatively mates with the adapter groove such that the pin receptacle is alignable with the pin assembly housing. The pin assembly is housed in the pin assembly housing of the adapter. The pin assembly includes a pin movably mounted for being selectively engagable with the pin receptacle for securing the stripper rubber insert to the adapter when the flange is engaged within the adapter groove with the pin receptacle suitably aligned with the pin.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: August 26, 2008
    Inventor: John R. Williams
  • Publication number: 20080142210
    Abstract: A drilling flange and an independent screwed wellhead provides a metal-to-metal seal that supplements the traditional elastomeric O-rings for providing a fluid seal between the drilling flange and the wellhead. The metal-to-metal seal may be achieved using a metal ring gasket or two contacting metal surfaces that are machined to required tolerances and are configured to be forced together when the drilling flange is mounted to the wellhead. The metal-to-metal seal ensures a fluid seal between the flange body and the wellhead in the event that the O-rings malfunction or are destroyed by fire.
    Type: Application
    Filed: February 26, 2008
    Publication date: June 19, 2008
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventors: Bob McGuire, L. Murray Dallas
  • Patent number: 7334633
    Abstract: A connector is provided for selectively connecting or disconnecting a stripper rubber to or from drilling head equipment such as a bearing assembly. A generally cylindrical adapter connected to the equipment defines a primary bore accommodate a down hole tubular. One or more cam pin bores, adapted to house one or more cam pins, are positioned radially around the adapter substantially parallel to the primary bore. One or more cam lock bores adapted to house one or more at least partially rotatable cam locks, are offset from the pin cam bores such that each cam pin bore partially intersects a corresponding cam lock bore to form an apertaure through which the cam lock engages the cam pin. One or more cam pins are connected to the stripper rubber; and one or more at least partially rotatable cam locks house in the cam lock bores of the adapter optionally engage or disengage the pin cams to respectively connect or disconnect the stripper rubber to or from the equipment.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: February 26, 2008
    Inventors: John R. Williams, Charles Todd Bishop
  • Patent number: 7314085
    Abstract: A wellhead has, instead of a conventional Christmas tree, a spool tree (34) in which a tubing hanger (54) is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the production casing hanger (21) for monitoring production casing annulus pressure, and the introduction of larger tools into the well hole without breaching the integrity of the well.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: January 1, 2008
    Assignee: Cameron International Corporation
    Inventors: Hans Paul Hopper, Thomas G. Cassity