Wedge Or Cam And Friction Drag Patents (Class 166/138)
  • Patent number: 10408011
    Abstract: A downhole tool including a mandrel, a sealing element, a cone, a plurality of fingers, and a slip. The sealing element may be positioned around the mandrel. The sealing element is configured to expand radially-outward from a contracted state to an expanded state. The cone may be positioned around the mandrel and proximate to the sealing element. The plurality of fingers may be positioned at least partially around the mandrel. The fingers may be axially-aligned with at least a portion of the sealing element. The fingers are coupled to a base and configured to break away from the base at a weak point when the sealing element expands into the expanded state. The slip may be positioned around the mandrel and proximate to the cone. The slip may include a tapered inner surface configured to slide along a tapered outer surface of the cone.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: September 10, 2019
    Assignee: INNOVEX DOWNHOLE SOLUTIONS, INC.
    Inventor: Michael J. Harris
  • Patent number: 10145202
    Abstract: A T-shaped slip is retained in an opening of a slip ring to drive the slip in opposed directions to and away from the surrounding borehole wall along a cone. The slip ring and cone do not come together when the slip is engaged. The opening allows release of a lock ring first with the slip engaged followed by release of the slip from the borehole wall. The slip ring and cone come together during removal from the borehole. A travel stop on the axial slip movement is provided to prevent guides on the slip from exiting a track or dovetail on the cone when the slip ring and cone are in contact during removal of the plug or packer. Extension of the guide from the cone track can happen if the slip moves through an enlarged portion of the borehole. The travel stop prevents this.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: December 4, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Gary L. Anderson, James C. Doane, Christopher D. Young
  • Patent number: 10024147
    Abstract: A method and apparatus that includes an elongated base pipe having an external surface at least partially defining an external region and an internal surface at least partially defining an internal region; and a pressure maintenance device disposed in the base pipe and includes a first flow path that extends between an opening in the external surface and an opening in the internal surface; a first valve that controls the flow of a first fluid through the first flow path; a first pressure differential sensor that controls the actuation of the first valve and is in fluid communication with the external region; and a pressurized fluid source in fluid communication with the first pressure differential sensor; wherein a first pressure differential threshold associated with the first pressure differential sensor is the difference between a pressure within the external region and the pressurized fluid source.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: July 17, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Syed Hamid, Tyson Harvey Eiman, Gregory William Garrison, Colby Munro Ross, William Mark Richards, Thomas Jules Frosell
  • Patent number: 9995104
    Abstract: An expandable anchor/seal is pushed up a ramp until making contact with the surrounding tubular as or after the anchor/seal contacts the same tubular. The setting sleeve is made from high yield steel that has a weakened leading end to reduce the force required to push the leading end and the anchor/seal and an outer surface treatment at a leading end that engages or penetrates the wall of the surrounding tubular. Preferably a plurality of fingers are formed with axially oriented slots starting from a leading end allowing fingers to flex as they ride up the ramp on the mandrel for setting the anchor/seal and locking that set with the setting sleeve exterior surface configuration that can abut or penetrate the surrounding tubular.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 12, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Jeffrey C. Williams, Benjamin T. Ronck, Ziping Hu
  • Patent number: 9797215
    Abstract: A wellhead assembly includes an outer tubular wellhead member and an inner tubular wellhead member with a seal pocket between them. A seal ring is located in the seal pocket. An annular energizing ring urges the seal ring into sealing engagement with the outer tubular wellhead member and the inner tubular wellhead member. A recess is located on an outer diameter of the annular energizing ring or a radially inner diameter of the seal ring, and a ratcheted retainer is on the other. A ratchet clip with a clip profile is located within the recess. The recess and the ratchet clip extend less than a full circumferential distance around the outer diameter of the annular energizing ring or the radially inner diameter of the seal ring. A retainer profile on the ratcheted retainer selectively engages with the clip profile of the ratchet clip.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: October 24, 2017
    Assignee: VETCO GRAY INC.
    Inventors: David Lawrence Ford, Daniel Ralph Barnhart, Daniel Caleb Benson
  • Patent number: 9752412
    Abstract: A toe valve having an outer tubular member, including at least one outer flow port, and an inner tubular member positioned at least partially within the outer tubular member and including a central flow passage. An indexing mechanism is positioned within the outer tubular member and there is a flow path allowing fluid pressure from the central passage to act against a first side of the indexing mechanism. A biasing device acts on a second side of the indexing mechanism and the indexing mechanism is configured to allow communication between the central flow passage and the outer flow port after the indexing mechanism is subject to a plurality of pressure cycles within the central flow passage.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: September 5, 2017
    Assignee: Superior Energy Services, LLC
    Inventors: Piro Shkurti, Gustavo Oliveira, Iain Greenan
  • Publication number: 20150101795
    Abstract: A packer having at least two or more areas of relative rotation. The packer also incorporates a jet port, a highly debossed mandrel and/or a J-pin rotatably disposed within a drag block assembly for continuously and redundantly engaging a J-slot area disposed in the mandrel. The areas of relative rotation can be between the mandrel and piping above the packer, the drag block assembly and the mandrel, and the drag block assembly and the J-pin.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Applicant: Thru Tubing Solutions, Inc.
    Inventors: Brock Watson, Roger Schultz, Andy Ferguson, Mark Britton
  • Publication number: 20150101830
    Abstract: A packoff and a locking assembly installed in a bore of a wellhead component are provided. In one embodiment, a packoff includes inner and outer annular seals and an energizing ring shaped to be wedged between the inner and outer annular seals so as to apply a radially inward biasing force on the inner annular seal and a radially outward biasing force on the outer annular seal. In another embodiment, a locking assembly includes a lock ring that extends into a recess in a wall of the bore of the wellhead component and an actuator radially disposed between an inner component within the bore and the lock ring to retain the lock ring within the recess. The actuator can have an interference fit with the inner component to inhibit movement of the actuator between the lock ring and the inner component. Additional systems, devices, and methods are also disclosed.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Applicant: Cameron International Corporation
    Inventors: Kyle A. Sommerfeld, Hao Bin Huang, Jay P. Painter
  • Publication number: 20150090439
    Abstract: Embodiments of the disclosure pertain to a downhole tool useable for isolating sections of a wellbore that includes a mandrel, the mandrel further having a body comprising an external surface, and an inner bore formed therein; a distal end; and a proximate end; wherein the mandrel is made of composite material, wherein a set of shear threads are disposed along a surface of the inner bore at the proximate end. Embodiments of the tool include a slip disposed about the mandrel, wherein the slip comprises a one-piece configuration.
    Type: Application
    Filed: November 17, 2014
    Publication date: April 2, 2015
    Inventor: Duke VanLue
  • Publication number: 20150068729
    Abstract: A composite frac plug (12) is provided which is formed of composite polymer materials, except for shear pins (52) and anchor cleats (96, 112) which are formed of metal. The composite materials provide for easy drilling of the frac plug (12) at the end of fracturing operations. The frac plug (12) has an elastomeric ball seat (44) which sealing engages with a frac ball (18). A ratchet lock assembly (26) has a split ratchet ring (82) which moves over the mandrel (22) in a downward direction only, and prevents movement of the mandrel (22) downward within the ratchet ring (92). An anchor assembly (28) has slip bodies (92, 108) which are segmented and separately urge anchor cleats (96, 112) into the interior surface of a well casing (136).
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Inventors: Jimmy L. Carr, Derrek D. Drury, Robert C. Andres, Trea H. Baker
  • Publication number: 20150034300
    Abstract: A method of constructing a packer assembly can include installing a body lock ring on a mandrel, and then outwardly surrounding the body lock ring with a structure displaceable relative to the mandrel by a setting mechanism. A packer assembly can include a setting mechanism which displaces a structure relative to a mandrel, and a mandrel lock device which permits one way displacement of the structure relative to the mandrel, the mandrel lock device including a body lock ring and a bias sleeve which urges the body lock ring into gripping engagement with the mandrel, the bias sleeve and the structure being separate elements of the packer assembly. The bias sleeve can be secured against rotation relative to the mandrel while the structure is rotatable relative to the mandrel.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 5, 2015
    Inventor: Shane R. Burckhard
  • Publication number: 20150027737
    Abstract: A slip assembly for a downhole tool, such as a bridge plug, has a slip body and at least one insert unit with a base and one or more inserts. The slip body has an incline at one end that interfaces with an inclined surface of a cone. As this occurs, the slip body is pushed away from the tool's mandrel against a surrounding casing wall. The insert unit is disposed in the slip body with the base oriented at an angle relative to the incline, and with the one or more inerts extending from the base. In particular, the base can be disposed at or parallel to the incline, and the one or more inserts with less surface area than the base can extend perpendicular to the inline for the insert's distal ends to engage a surrounding wall of casing or the like.
    Type: Application
    Filed: July 30, 2014
    Publication date: January 29, 2015
    Inventors: James Alan Rochen, Shawn J. Treadaway
  • Patent number: 8939220
    Abstract: A liner hanger includes a mandrel and a slip assembly disposed around the mandrel, wherein the slip assembly includes an expandable non-frangible slip ring and a plurality of gripping members. A liner top packer includes a mandrel, a slip assembly disposed around the mandrel, and a sealing element disposed around the mandrel, wherein the slip assembly includes an expandable non-frangible slip ring and a plurality of gripping members disposed circumferentially around the expandable non-frangible slip ring. A method for setting a tool in a wellbore includes running the tool having a slip assembly disposed around a mandrel of the tool into the wellbore, positioning the tool at a predetermined wellbore location, actuating the tool to impart a force on the slip assembly, and expanding the expandable non-frangible slip ring from a first diameter to a second diameter to displace the gripping members radially outward into engagement with a surrounding surface.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: January 27, 2015
    Assignee: Smith International, Inc.
    Inventor: Michael J. Harris
  • Patent number: 8910722
    Abstract: Arrangements and packer devices having anti-extrusion backup rings that are expanded radially outwardly by a setting mechanism that lies proximate the elastomeric packer element that is being protected against extrusion. The setting mechanism can be a slip assembly that has a radially expandable slip element.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 16, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: David S. Bishop, Douglas J. Lehr
  • Publication number: 20140352944
    Abstract: A packoff for hanging a liner string from a tubular string cemented in a wellbore includes: a tubular body having an outer groove and an inner groove; an inner seal assembly disposed in the inner groove; an outer seal assembly disposed in the outer groove; a cap connected to an upper end of the body for retaining the seal assemblies; a plurality dogs disposed in respective openings formed through a wall of the body; and a lock sleeve. The lock sleeve is: disposed in the body, longitudinally movable relative to the body, and has a cam profile formed in an outer surface thereof for extending the dogs.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 4, 2014
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Kannan DEVARAJAN, Muhammad Saleem PERVEZ, George GIVENS, Alexis TAKOTUE, Mujeer Ahmed MOHAMMED
  • Patent number: 8893779
    Abstract: A downhole tool slip mechanism including a cone, cage, and slip disposed on a mandrel. The cone and cage can be move in relation to one another, and the cone may be locked into place during run-in and retrieval downhole. The cage contains slip slots contains a spring retaining finger for a spring that resides between the retention finger and the slip. This spring serves to bias the slip inward during run-in and retrieval. The slip slots have load-bearing shoulders used to engage the slip during retrieval. The slips outer surface is completely covered in wickers so that the slip can sustain greater loads when set in place. Additionally, the slip has load-bearing shoulders with an increased thickness cross-section to sustain greater loads during retrieval while minimizing slip and cage failures.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: November 25, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Shawn J. Treadaway, Robert C. Stratton, James A. Rochen
  • Patent number: 8857509
    Abstract: Disclosed is a drag block assembly for use on a downhole tool for location in a cased wellbore. The tool has a hollow mandrel for suspension from a tubing string. The drag block, slips and packing elements mounted on the mandrel are moveable between the run and set positions by movement of the drag block, while engaging a lug on the mandrel. The drag block assembly comprises longitudinally spaced rings comprising resilient material connected together by longitudinally extending members.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: October 14, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Chieh Yin
  • Publication number: 20140238689
    Abstract: A wellbore packer for setting against a wellbore wall in a wellbore, the wellbore packer including: a mandrel including a upper end and an lower end; and an outer housing encircling the mandrel and including a first compression ring, a second compression ring, an annular packing element encircling the mandrel and positioned between the first compression ring and the second compression ring, the sealing element being expandable to form an annular seal about the packer by compression between the first compression ring and the second compression ring; and an anchoring mechanism including a slip that is expandable outwardly into a set position and a slip actuation assembly to drive expansion of the slip.
    Type: Application
    Filed: May 17, 2013
    Publication date: August 28, 2014
    Applicant: RESOURCE WELL COMPLETION TECHNOLOGIES INC.
    Inventors: John Hughes, Ryan Dwaine Rasmussen
  • Publication number: 20140238697
    Abstract: Apparatus useful for remotely actuating the drag blocks of a downhole tool includes at least one remotely actuated sleeve configured to allow the drag blocks to move from one position to another when the downhole tool is disposed in a well bore.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gabriel Antoniu Slup, Douglas Julius Lehr
  • Patent number: 8783370
    Abstract: A packer deactivation system can include a packer and a safety joint. Activation of the safety joint can prevent setting of the packer. A method for use with a subterranean well can include activating a safety joint in the well, and deactivating a packer connected to the safety joint, in response to the safety joint activating. Another packer deactivation system can include a safety joint and a packer drag block locking mechanism. Activation of the safety joint can operate the drag block locking mechanism, thereby preventing a drag block from displacing in a certain direction relative to a mandrel of a packer.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: July 22, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Ringgenberg, Scott L. Miller
  • Patent number: 8770276
    Abstract: A downhole tool with a frangible cone and slip system is disposable in a casing of an oil or gas well and includes a slip ring and a cone disposal on a mandrel. An interior of the slip ring and an exterior of the cone have mating flat facets circumscribing the interior or the exterior of the respective slip ring or cone, and forming an acute angle with respect to a longitudinal axis of the mandrel. The flat facets of the cone are contiguous with or bordering one another around a circumference of the cone, or are separated by a flush region substantially flush with adjacent flat facets, to form a substantially smooth circumference around the flat facets.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: July 8, 2014
    Assignee: Exelis, Inc.
    Inventors: Randall W. Nish, Eric Brian Ackermann
  • Patent number: 8651178
    Abstract: A packer for a well. The packer comprises a seal element and seal setting apparatus. The seal setting apparatus is moveable with respect to the seal element in a setting direction to apply a setting force to the seal element to move the seal element from a run-in configuration to a set configuration in which, in use, the seal element forms a contact seal with a conduit wall. In use, the packer is arranged such that, in the set configuration, a pressure differential across the packer, which creates a force in the setting direction, will increase the setting force applied by the seal setting apparatus to the seal element to maintain the seal.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: February 18, 2014
    Assignee: Petrowell Limited
    Inventors: Lee Mercer, Iain Macleod
  • Patent number: 8596350
    Abstract: A plurality of rows of locking dogs are provided with housing flexibility between rows to allow them to share a shear loading while leaving enough structural integrity in the housing to define the windows through which the dogs emerge. The dogs can also have extensions with a surface that grippingly engages the housing adjacent the window on extension of the dogs such that loads can transfer from the housing into the extension and into the profile in which the dog is disposed rather than passing the shear stress through the window edge into the dog that is in the profile. The dog configuration can also share the load on multiple contact surfaces of the housing to reduce stress at each contact location.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: December 3, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Peter J. Fay, Marcus A. Avant
  • Patent number: 8579024
    Abstract: A non-damaging slip assembly includes slips having grit on a smooth surface, the slips preferably made from a ductile material, such that the slips do not cause damage to the wall of a tubular when the slips are set. The slips fail under tensile force during setting. The cone used to expand the slips may have slits that narrow during setting of the slips. The slip assembly may be used to anchor a variety or devices inside a tubular. A drillable, non-damaging bridge plug using the non-damaging slip assembly has a threaded mandrel holding the cone by threads inside the cone. When the slips are set, the slits in the cone narrow such that threads in the cone do not allow rotation of the slips as they are drilled. The bridge plug can be drilled by a PDC bit without damaging the tubular.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: November 12, 2013
    Assignee: Team Oil Tools, LP
    Inventors: Jason C. Mailand, Glenn A. Bahr
  • Publication number: 20130269930
    Abstract: The invention relates to an improved downhole tool apparatus for limiting the extrusion of a sealing elements in downhole tools. The apparatus provides for using a limiter ring or shoe located in a channel on the slip wedge so as to abut the sealing element. The limiter ring extends outward to the casing to minimize the gap through which the sealing element can extrude when the tool is in a set position.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 17, 2013
    Inventor: ADAM NEER
  • Patent number: 8469088
    Abstract: A drillable bridge plug includes a mandrel having external splines disposed on an outer surface of the mandrel, a sealing element disposed around the mandrel, an upper cone disposed around the mandrel proximate an upper end of the sealing element, and a lower cone disposed around the mandrel proximate the lower end of the sealing element, wherein an inner surface of the lower cone comprises internal splines configured to engage the external splines. The drillable bridge plug also includes an upper and a lower slip assembly disposed around the mandrel, and an upper and lower ring assembly each including a first segmented barrier ring, a second segmented barrier ring, and a back-up ring disposed proximate sealing element. Methods include a method of setting the drillable bridge plug and a method of removing the drillable bridge plug.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: June 25, 2013
    Assignee: Smith International, Inc.
    Inventors: Piro Shkurti, John C. Wolf
  • Patent number: 8459347
    Abstract: A subterranean well tool seals along a section of a wall of the well and is carried on a conduit into the well. A plurality of anchoring elements and seals are provided for respective anchoring and sealing engagement along the wall of the well in concert and substantially concurrently with one another when the tool is shifted to the set position. When the well tool moves to the set position, a portion of the mandrel separates and is retrieved from the well bore, allowing the well tool to be reduced in overall length. The anchoring elements are sandwiched in between first and second, or upper and lower, sets of seals.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: June 11, 2013
    Assignee: Oiltool Engineering Services, Inc.
    Inventor: Gregg W. Stout
  • Patent number: 8408290
    Abstract: A downhole tool for use in a well has a mandrel with an expandable sealing element disposed thereabout. The mandrel has a head portion threadedly connected thereto. A shoulder in the head portion and an upper end of the mandrel define an annular space. A sleeve with a bore therethrough may be positioned in the annular space. The head portion may be removed and a solid plug installed so that it fits within the annular space and so that the downhole tool will act as a bridge plug. The downhole tool has slip rings made up of a plurality of individual slip segments that are adhesively bonded to one another at the sides thereof.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 2, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jesse C. Porter, William E. Standridge, Adam K. Neer, Tracy Martin, Kevin R. Manke
  • Patent number: 8397802
    Abstract: A packer having a swellable element is configured for axial expansion of the swellable element. The axial expansion causes the slip mechanism to deploy and engage a sidewall of a tubular or casing. The axial expansion may directly cause activation of the slip mechanism, or may trigger a triggering mechanism to activate a spring-loaded slip mechanism. The swellable element may be the same element used for sealing the packer to the sidewall, or may be a sleeve dedicated for deployment of the slip mechanism.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: March 19, 2013
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Jeffrey J. Lembcke
  • Patent number: 8327929
    Abstract: A support assembly for a deformable sealing element of a downhole tool such as a packer, bridge plug or straddle. The support assembly has first and second support devices at each end of the sealing element with each device having an elastically deformable support member adapted to be located between the respective end of the sealing element and an actuating member of the downhole tool. Additionally, a guide member with an inclined guide surface is provided such that the support member travels along the inclined surface when a force is exerted by the actuating member to expand the sealing element radially into abutment with a surface downhole. The support member moves radially outwards to support the respective end of the sealing element during deformation.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: December 11, 2012
    Assignee: Red Spider Technology Limited
    Inventors: Michael A. Reid, William S. Burnett
  • Publication number: 20120160522
    Abstract: A packer tool having simple and reliable setting and release systems comprising three or more slips evenly distributed around a mandrel. Each slip comprises two members with gripping teeth which, except for one slip, typically have the capacity to grip a well casing in opposite axial directions. The remaining slip has only one member with teeth able to grip the casing, the other slip member has dummy teeth with nil gripping capacity. The latter teeth have blunt or rounded edges and are not slanted in a selective gripping direction as the sharper teeth of the other slip members.
    Type: Application
    Filed: July 18, 2011
    Publication date: June 28, 2012
    Applicant: TEXPROIL S.R.L.
    Inventor: Horacio Daniel Burgos
  • Patent number: 8151873
    Abstract: An open hole packer uses mandrel expansion and a surrounding sealing element that can optionally have a swelling feature and further a seal enhancing feature of a ring with an internal taper to match an undercut on the mandrel exterior. As a swage progresses to the taper at the transition between the ring and the extending flat fingers, the fingers get plastically deformed in an outward radial direction to push out the sealing element. Shrinkage of the mandrel axially due to radial expansion brings a ring on the mandrel outer surface under the fingers to act as a support for the fingers against the seal which is pushed against the open hole. Mirror image orientations are envisioned to aid in retaining pressure differentials in opposed directions. Another external mandrel ring extends into the seal to keep its position during differential pressure loading.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 10, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Chee K Lee, Mark K. Adam, Jeffrey C. Williams
  • Patent number: 8109340
    Abstract: A packer device includes an elastomeric packer element which is seated upon an inner sleeve that surrounds a central inner mandrel. The inner sleeve and the inner mandrel are oriented at an angle of departure with respect to the central axis of the tool, thereby providing a ramp assembly which helps to set the packer device. An anchor ring and a retaining ring are located on opposite axial sides of the packer element and contact the surrounding tubular member.
    Type: Grant
    Filed: June 27, 2009
    Date of Patent: February 7, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: James C. Doane, Samuel I. Robinson
  • Patent number: 8066065
    Abstract: An expansion device for a wellbore servicing tool, comprising a wedge comprising a frusto-conical wall having a tip end, the wedge being configured coaxially along a central axis, a plurality of slip segments, each slip segment comprising an inner surface having an incline surface, and at least one bridge joining each of the incline surfaces to the frusto conical wall. A method of operating a wellbore servicing tool, comprising longitudinally compressing an expansion device along a central axis, upon sufficient compression, separating plural slip segments from a wedge, moving the wedge relative to the slip segments, upon sufficient movement of the wedge relative to the slip segments, separating at least two slip segments from each other.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: November 29, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventor: Robert Kenneth Buckner
  • Patent number: 8066064
    Abstract: A wellhead system comprising a high pressure housing having a retractable ring and a casing hanger having an activation ring configured to be engaged by the retractable ring when the casing hanger is lowered into the high pressure housing. An expandable load member is carried by the casing hanger into the high pressure housing. When the activation ring is engaged by the retractable ring, the activation ring is blocked from further downward motion. The activation ring and the body of the casing hanger cooperate with the load member to expand the load member outward into engagement with the high pressure housing as the casing hanger is lowered further into the high pressure housing. The outer surface of the load member and the inner surface of the high pressure housing are configured so that the high pressure housing supports the casing hanger when the load member is expanded into engagement with the high pressure housing.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 29, 2011
    Assignee: Vetco Gray Inc.
    Inventors: Marc Minassian, David L. Ford
  • Patent number: 8047278
    Abstract: A method to connect a lifting assembly to a bore of a downhole tubular includes providing a communication tool to a distal end of the lifting assembly, the communication tool comprising a body assembly, an engagement assembly, a valve assembly and a seal assembly, sealingly engaging a first portion of the seal assembly in the bore of the downhole tubular, selectively permitting fluid to flow between the lifting assembly and the downhole tubular with the valve assembly, and disengaging the first portion of the seal assembly from the bore of the downhole tubular.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: November 1, 2011
    Assignee: Pilot Drilling Control Limited
    Inventors: George Swietlik, Burney J. Latiolais, Jr., Robert Large
  • Patent number: 8047280
    Abstract: A downhole tool for isolating zones in a well, the tool including a mandrel, a sealing element disposed around the mandrel, and an upper cone disposed around the mandrel proximate an upper end of the sealing element. The tool further including an upper slip assembly disposed around the mandrel adjacent a sloped surface of the upper cone, a lower cone disposed around the mandrel proximate a lower end of the sealing element, a lower slip assembly disposed around the mandrel adjacent a sloped surface of the lower cone, and two element end rings. Further, the tool includes a first element end ring disposed adjacent the upper end of the sealing element and a second element end ring disposed adjacent the lower end of the sealing element, and two element barrier assemblies, each assembly disposed adjacent one of the two element end rings.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: November 1, 2011
    Assignee: Smith International, Inc.
    Inventors: Lap T. Tran, William M. Roberts, Piro Shkurti, George J. Melenyzer
  • Patent number: 7926581
    Abstract: A well tool having an enhanced performance packing element assembly. A well tool includes a packing element assembly for sealingly engaging a surface, the assembly including a packing element having at least one circumferential variation. Another well tool includes a packing element assembly including a packing element and a backup ring, the packing element being configured to bias the backup ring into contact with a surface opposite a circumferential portion of the backup ring, while another circumferential portion does not contact the surface. A method of setting a well tool includes providing a packing element assembly with multiple packing elements, and setting the well tool by squeezing fluid from between the packing elements via a gap, and then closing off the gap.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: April 19, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gregory S. Marshall, David W. Teale, Brett W. Bouldin
  • Patent number: 7921921
    Abstract: A downhole backup system includes, a tubular positionable within a downhole structure such that an annular space exists between the tubular and the downhole structure. The downhole backup system also includes, a plurality of wedges that are radially movably positioned within the annular space, and each of two opposing ends of the plurality of wedges are configured to completely cover the annular space at all possible radial positions of the plurality of wedges.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: April 12, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: David S. Bishop, Marc N. Samuelson
  • Publication number: 20110036597
    Abstract: A technique enables construction of a simplified inflatable packer. An inflatable packer is constructed with a packer reinforcement layer having at least one fiber layer. The fiber layers provide both mechanical and anti-extrusion qualities in a relatively simple and small package. Depending on the desired application, the inflatable packer also comprises an inner bladder layer and other potential layers, such as an outer seal layer. Mechanical extremities are used to secure longitudinal ends of the various packer layers, including the packer reinforcement layer.
    Type: Application
    Filed: December 7, 2009
    Publication date: February 17, 2011
    Inventors: Pierre-Yves Corre, Gilles Carree, Guillaume Boutillon, Zeynep Alpman, Stephane Metayer, Jean-Louis Pessin
  • Publication number: 20100294483
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Application
    Filed: July 27, 2010
    Publication date: November 25, 2010
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7810558
    Abstract: A downhole tool for isolating zones in a well includes a mandrel, a sealing element disposed around the mandrel, an upper cone disposed around the mandrel proximate an upper end of the sealing element, an upper slip assembly disposed around the mandrel adjacent a sloped surface of the upper cone, a lower cone disposed around the mandrel proximate a lower end of the sealing element, a lower slip assembly disposed around the mandrel adjacent a sloped surface of the lower cone, and two element end rings. The two element end rings include a first element end ring disposed adjacent the upper end of the sealing element and a second element end ring disposed adjacent the lower end of the sealing element. The downhole tool includes two element barrier assemblies; each assembly disposed adjacent one of the two element end rings.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: October 12, 2010
    Assignee: Smith International, Inc.
    Inventors: Piro Shkurti, Lap T. Tran, William M. Roberts, George J. Melenyzer
  • Patent number: 7789137
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: September 7, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7789136
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: September 7, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7789135
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: September 7, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7779927
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 24, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7779928
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 24, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7762323
    Abstract: A downhole plug that can include a body and an element system disposed about the body. The plug can further include a first and second back-up ring member having two or more tapered wedges. The tapered wedges can be at least partially separated by two or more converging grooves. First and second cones can be disposed adjacent the first and second back-up ring members.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: July 27, 2010
    Inventor: W. Lynn Frazier
  • Publication number: 20100126733
    Abstract: A packer that is usable with a well includes an anchor. The anchor includes at least one spirally extending ring, which is adapted to be selectively radially expanded to secure the packer to a casing string.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 27, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Gary Rytlewski
  • Publication number: 20100084126
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 8, 2010
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray