Cap Or Head Pivotably Attached To Tube Or Casing Patents (Class 166/92.1)
  • Patent number: 9732577
    Abstract: The disclosed embodiments are directed to a blowout preventer with a hinged bonnet assembly having components designed to improve the maintenance and serviceability of the blowout preventer. The blowout preventer includes a body with intersecting passageways extending therethrough. The blowout preventer also includes a bonnet including a ram unit capable of seating in a ram location of the body and a bonnet door removably coupled to a first side of the body. The blowout preventer further includes a pin or hinge adapter disposed along the body and defining a hinge axis, and a hinge rotatably coupled to the pin or hinge adapter. The hinge is coupled to the bonnet door to rotate the bonnet about the hinge axis, and the hinge and the bonnet door are selectively separable. The separable hinge allows an operator to access, remove, and replace the hinge if the hinge becomes worn or impacted during operation.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 15, 2017
    Assignee: Axon Pressure Products, Inc.
    Inventors: William Rinehart Holland, Jr., Jess W. Shows, Bradford S. Franks
  • Publication number: 20140246197
    Abstract: A production system for producing hydrocarbons from a subterranean reservoir includes a wellhead including a housing and a head. The housing has a central axis, an upper end, a lower end, and an inner surface. The inner surface defines a passage extending axially through the housing. In addition, the inner surface of the housing includes an annular recess positioned between the upper end and the lower end. The housing also includes a first production port extending radially through the housing. Further, the system includes a casing hanger disposed within the housing. The casing hanger has an upper end, a lower end, an outer surface, and a through bore extending from the upper end to the lower end. The casing hanger also includes a plurality of circumferentially-spaced ports extending radially through the casing hanger from the through bore to the annular recess of the housing.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventor: NATIONAL OILWELL VARCO, L.P.
  • Patent number: 8727023
    Abstract: A wireline lubricator and a connector includes a first part with a first seal portion and a first throughgoing passage for receiving a part of a wireline, and a second part with a second seal portion and a second throughgoing passage for receiving a part of a wireline. The first part is pivotally connected to the second part such that the connector is capable of assuming a first configuration and a second configuration. The second configuration and the first and second throughgoing passage are aligned. The first and second seal portion engage each other to provide a sealed wireline passage defined by the aligned first and second throughgoing passage.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 20, 2014
    Assignee: Maersk Olie Og Gas A/S
    Inventor: Wilhelmus Hubertus Paulus Maria Heijnen
  • Patent number: 8689879
    Abstract: The method for subsea well intervention includes creating a lubricator section within the production tubing of the well. The lubricator section can then be flushed of hydrocarbons facilitating further well intervention from the open water. An intervention device that facilitates flushing production tubing that has equipment, such as electric submersible pumps, is deployed in the wellhead, for example in the valve tree.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: April 8, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Dinesh R. Patel, Jean-Luc Monnac, Christopher Taor
  • Patent number: 8644592
    Abstract: A method for determining a position of a fluid discharge in an underwater environment, the method including: collecting data relating to an underwater area through at least two acoustic sensors; filtering and processing the data collected to identify the presence of the discharged fluid and the underwater area involved; forming a single stereoscopic image by combining the plurality of single three-dimensional images; and estimating the position of the fluid discharge on the basis of the stereoscopic image thus obtained.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: February 4, 2014
    Assignee: ENI S.p.A.
    Inventors: Eliana De Marchi, Paolo Ferrara, Roberto Ferrario, Roberto Finotello
  • Patent number: 8118091
    Abstract: An end protector system for tubular goods including, but not necessarily limited to, drilling riser pipe. The end protector system utilizes lightweight substantially rigid, UV-stabilized molded plastic members that can quickly and easily cover box and pin end connections of drilling riser pipe, as well as ancillary conduit holes, bolt holes and/or other openings. The end protector system of the present invention can be used on tubular goods having an end connection flange, as well as those without an end connection flange, to block access to internal surfaces of the drilling riser components. The end protector system of the present invention further includes a retention system to ensure that individual end protectors remain in place during transportation and/or prolonged storage of such tubular goods.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: February 21, 2012
    Inventors: Jerry G. Baker, Joseph C. Fox
  • Patent number: 7963320
    Abstract: A cover assembly for use on a wide variety of tubular members comprises a base member, a pivoting member, a plurality of fingers extending from both the base member and the pivoting member and pivot means to pivotally join said pivoting member to said base member. Preferably the cover assembly is pivotable between an open configuration and a closed configuration, wherein said open configuration accepts a first bolt pattern configuration and wherein said closed configuration accepts a second bolt pattern configuration. More preferably, the cover assembly further comprises a ring groove guide. Even more preferably, the cover assembly further comprises a tubular engagement member.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: June 21, 2011
    Inventor: Corey Schnepf
  • Publication number: 20110079399
    Abstract: A hydraulic connector for a wellhead hub is provided that includes a piston and a bottom portion configured to move in an axial direction via hydraulic pressure applied to one or more hydraulic ports in the connector. The movement of the piston and the bottom portion moves a ring and a segment of the connector in a radial direction to engage recesses in the wellhead hub. The connector may be unlocked by applying hydraulic pressure to a hydraulic port of the connector. A system and method of operating the connector are also provided.
    Type: Application
    Filed: April 27, 2009
    Publication date: April 7, 2011
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: Dennis P. Nguyen, Richard Altman
  • Publication number: 20110048726
    Abstract: Internal tree cap (201) (ITC) adapted to be installed in the bore of a subsea well unit (301) or to an internal tubular element (303) of the same, comprising a locking element (209) for releasably locking the internal tree cap (201) to said subsea well unit (301) or internal tubular element (303). The ITC further comprises a fluid channel (215) extending through a fluid barrier between the lower and upper part of the internal tree cap (201), which fluid channel (215) is blocked by a burst element (217) adapted to break and open for fluid flow through the fluid channel (215) when exposed to a predetermined pressure difference over the burst element (217). The invention also relates to an ITC running tool (101) and a locking mechanism (117) for supporting the ITC in the tool.
    Type: Application
    Filed: April 28, 2009
    Publication date: March 3, 2011
    Inventors: Lasse E. Aarnes, Andre M. Smith
  • Patent number: 7779921
    Abstract: A wellhead completion assembly has a head connected to surface casing. A rotatable flange or the like can be used to connect various components to a threaded end of the head. A casing hanger installs in the head, and the hanger's upper end extends beyond the head's top edge. This exposed end has an external threaded connection to connect to various wellhead components using a rotatable flange or the like. For example, a locking ring can threadably connect to the head's threaded end to support the hanger in the head. Then, a rotatable flange can threadably connect to the hanger's exposed end so that another component, such as a completion spool or gate valve, can nippled up directly to the hanger. When the hanger is fluted, a pack-off assembly can allow testing off inner and outer sealing integrity via a test port accessible through an opening in the locking ring.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: August 24, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Brandon Matthew Cain, Todd Travis, Michael L. Bilyeu, Gordon Ronnie Altman, Steve Willard, Carl Edwin Davidson, John Rogers
  • Patent number: 7621340
    Abstract: The invention describes a system for capping an abandoned well having production casing and surface casing. The system enables the effective sealing of the production casing volume from the surface casing volume such that any gases leaking from either volume can be independently released from independent valves. The system is particularly effective in improving the safety of re-entering an abandoned well.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: November 24, 2009
    Assignee: CCS Corporation
    Inventors: Kary Cuthill, Daryl Cuthill
  • Patent number: 7308933
    Abstract: An improved lubricator assembly for receiving a well plunger or other downhole tool wherein a hinge is connected between a lower portion and an upper riser of the lubricator assembly and a power lifting device is included for moving the upper riser off of and onto the lower portion of the lubricator assembly.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: December 18, 2007
    Assignee: PAAL, L.L.C.
    Inventors: Windel O. Mayfield, Robert L. Moore
  • Patent number: 7258171
    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: August 21, 2007
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Darryl A. Bourgoyne, Don M. Hannegan, Thomas F. Bailey, James W. Chambers, Timothy L. Wilson
  • Patent number: 7231968
    Abstract: A system for capping the upper opening of a well having an accommodation for a remotely-located control device. More specifically, a well cap system for a water-well having a pipe casing that permits one or more well control apparatus to be located within the well cap. The system is a two-part assembly, comprising a base and hollow cover, both arranged to be supported by the pipe casing. Further, a constant pressure well system utilizing the water-well cap system.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: June 19, 2007
    Inventor: Eric Owens
  • Patent number: 7159669
    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: January 9, 2007
    Inventors: Darryl A. Bourgoyne, Don M. Hannegan, Thomas F. Bailey, James W. Chambers, Timothy L. Wilson
  • Patent number: 6845815
    Abstract: A temporary abandonment cap includes a body, a pressure-retaining top portion extending across the body and a plurality of locking pins coupled to the body and a single moveable handle, the locking pins being adapted to be moved from an engaged position to a disengaged position by movement of the single handle. The temporary abandonment cap is lightweight, reusable, and can be placed on and retrieved from an open pipe of a subsea well.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: January 25, 2005
    Assignee: FMC Technologies, Inc.
    Inventors: Thomas Hergarden, Richard Murphy, Paul Riley
  • Patent number: 6834717
    Abstract: Tubing rotator 10 includes a main body or rotator spool 20, a selected bottom connector 50, and a selected top connector 70. The bottom connector 50 may be adapted for a screw cap type wellhead or a flanged wellhead. The top connector may comprise a pin connection mandrel 72 with either a threaded or flanged upper end, or a flow-T and/or BOP housing that bolts to the top of the spool. The tubing rotator may be adapted for hanging the tubing directly from the tubing rotator or may be used with a double box bushing 110 hung within the tubing rotator. The tubing rotator may also use a swivel hanger 120 included in the tubing head.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: December 28, 2004
    Assignee: R&M Energy Systems, Inc.
    Inventor: Linden H. Bland
  • Patent number: 6634423
    Abstract: A lifting top drive sub sea staging cement head in which cement slurry flows from outside into its central bore, thru a rotating swivel connection. The cement head has a rotatably indexable reservoir cylinder with multiple cells which may be loaded with balls, and/or darts, and/or staging bombs. One first cell is kept open for circulation. The cylinder is rotatably aligned, at will to the flow path, so that the staging elements may be washed down the drill string. In addition, the cement head is hydraulically remotely controlled such that no operators protrude from the smooth body, yet the remote system may be manually over-ridden.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: October 21, 2003
    Inventors: Norman B. Giebeler, James F. Giebeler
  • Publication number: 20030192688
    Abstract: The present invention relates to a tubing rotator assembly for attachment to an existing casing head for purposes of suspending and rotating a tubing string in an oil well. In the preferred embodiment, the tubing assembly includes a rotation surface, such as a bearing, in which a tubing mandrel rests and allows one to rotate the tubing manually above the wellhead. It provides a low profile reducing the distance between the casing head and the pumping tee, which may eliminate the need for one to raise the pumping unit to fit on the rotator. In addition, the conventional seals above the rotation surface have less chance of leaking fluids located between the casing and tubing due to the seals potentially installed in the present invention. In addition, if the conventional seals do start to leak, then one can change the packing rubber without having to remove the tubing rotator assembly or tubing string (thus, not requiring a rig to change the sealing elements).
    Type: Application
    Filed: February 3, 2003
    Publication date: October 16, 2003
    Inventors: Michael A. Thomson, Philip E. Hart
  • Patent number: 6474411
    Abstract: The invention relates to metal protectors for threaded extremities of pipe joints for the drilling of oil, gas and geothermal wells. The protectors are intended to protect the threads and seals of the assembly joint against shocks during transportation and handling in the wells and also eliminate the need to use a cardboard washer, which is only used to deliver the product, exposing the seal to shocks during handling in the wells after deterioration of the cardboard washer, considering that cardboard does not provide the same protection against impacts and shocks as steel.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: November 5, 2002
    Inventor: Angel Gabriel Amadeo Carrano Castro