Magnetized Or With Magnet Patents (Class 175/328)
  • Patent number: 9423364
    Abstract: Methods of evaluating a superabrasive volume or a superabrasive compact are disclosed. One method may comprise exposing a superabrasive volume to radiation and detecting a response of the radiation when it interacts with the superabrasive volume. In one embodiment, a boundary may be perceived between a first region and a second region of the superabrasive volume in response to detecting the response of the radiation. In one particular embodiment, a boundary between a catalyst-containing region and a catalyst-diminished region of a polycrystalline diamond volume may be perceived. Additionally, a depth to which a catalyst-diminished region extends within a polycrystalline diamond volume of a polycrystalline diamond compact may be measured based on the monitored response of the radiation. In a further embodiment, a non-planar boundary between the two regions may be mapped. A system configured to evaluate a superabrasive volume is also disclosed.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: August 23, 2016
    Assignee: US Synthetic Corporation
    Inventors: Giovani J. Gongora, Michael A. Vail
  • Patent number: 8720612
    Abstract: The present disclosure relates in one aspect to a cutting element comprising a substrate and a cutting layer disposed on a surface of the substrate. The cutting layer comprises an ultra hard material. The substrate comprises tungsten carbide and a metal binder. The substrate has a magnetic saturation value in the range of from 80% to less than 85%. In another aspect, the magnetic saturation value may increase within the substrate along a gradient, wherein proximal to the interface with the cutting layer, the substrate has a magnetic saturation value in the range of from 80% to less than 85%. Also included are drill bits incorporating such cutting elements. Additionally, the present disclosure relates to methods of manufacturing cutting elements.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: May 13, 2014
    Assignee: Smith International, Inc.
    Inventors: Loel G Corbett, Daniel J Belnap
  • Patent number: 8689889
    Abstract: A downhole magnet tool comprises a top sub having an inner bore terminating in a downhole facing open end, the inner bore defining a centralizer receptacle of smaller width than a width of the downhole facing open end, a mandrel terminating upwardly in a centralizer stem, the centralizer stem being fitted in the centralizer receptacle of the top sub, and a magnet mounted on a downhole facing surface of the mandrel. A method of assembly of a downhole magnet tool comprises mounting a magnet on the mandrel and inserting the centralizer stem into the centralizer receptacle.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: April 8, 2014
    Assignee: Lee Oilfield Service Ltd.
    Inventors: Michael Shoyhetman, David Budney, Craig Budney, Glenn Budney
  • Patent number: 8616306
    Abstract: Embodiments of the invention relate to a polycrystalline diamond compact. In an embodiment, the polycrystalline diamond compact includes a substrate and a polycrystalline diamond table including a first polycrystalline diamond layer bonded to the substrate and at least a second polycrystalline diamond layer. At least an un-leached portion of the polycrystalline diamond table includes a plurality of diamond grains defining a plurality of interstitial regions and a metal-solvent catalyst occupying at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oe or more and a specific magnetic saturation of about 15 G·cm3/g or less. The second polycrystalline diamond layer exhibits a second average diamond grain size that is less than a first average diamond grain size of the first polycrystalline diamond layer and/or the first polycrystalline diamond layer includes a tungsten-containing material therein.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 31, 2013
    Assignee: US Synthetic Corporation
    Inventors: Kenneth E. Bertagnolli, Michael A. Vail, Jason K. Wiggins, Jiang Qian, David P. Miess, Debkumar Mukhopadhyay
  • Patent number: 8353349
    Abstract: A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel. A removable insert resides upon the tool mandrel. The insert retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: January 15, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Gregory L. Hern, Larry T. Palmer, Jonathan F. Nelson
  • Publication number: 20130000991
    Abstract: A drilling system includes a magnetic coupling and an oscillation absorber. The magnetic coupling has a rotor that rotates about an axis of rotation. The oscillation absorber is in operable communication with the magnetic coupling and includes an outer layer coupled to a separator layer of the magnetic coupling to form an enclosed area. An absorber shaft of the oscillation absorber is at least partially within the enclosed area and is coupled to the rotor. The absorber further includes an outer mover arranged such that rotation of the absorber shaft causes the outer mover to rotate due to interaction of inner absorber shaft magnets and outer mover magnets.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 3, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Eckard Scholz, Helge Brand
  • Patent number: 8336626
    Abstract: A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with one or more pockets formed in its outer radial surface. A removable insert resides within each pocket. Each of the inserts retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 25, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Gregory L. Hern, Larry T. Palmer, Paul L. Connell, Jonathan F. Nelson
  • Patent number: 8297382
    Abstract: Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, polycrystalline diamond compact (“PDC”) includes a PCD table having a maximum thickness. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm3/grams (“G·cm3/g”) or less. The PDC includes a substrate having an interfacial surface that is bonded to the PCD table. The interfacial surface exhibits a substantially planar topography. Other embodiments are directed to methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: October 30, 2012
    Assignee: US Synthetic Corporation
    Inventors: Kenneth E. Bertagnolli, David P. Miess, Jiang Qian, Jason K. Wiggins, Michael A. Vail, Debkumar Mukhopadhyay
  • Publication number: 20120103690
    Abstract: A drill bit made according to one embodiment includes a first member including one of a magnet and a coil, and a second member that moves relative to the first member, the second member including the other of the magnet and the coil, wherein the relative motion causes the generation of an electrical charge in the coil.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Suresh G. Patel, Clifton N. B. Triplett
  • Publication number: 20110120725
    Abstract: A directional drilling system, a drilling hammer and a fluid flow telemetry modulator use a plurality of magnets arranged to convert rotational motion into reciprocating linear motion. Various types of motor can provide rotational motion to a part of the magnets and various linkages and other devices can cause steering or operation of a modulator valve. A torsional drilling hammer uses a plurality of magnets arranged to convert reciprocating linear motion into reciprocating rotational motion. A motor and linkage drives the linearly moving part of the magnets, and the rotating part provides torsional impact be striking the linearly moving part of the magnets.
    Type: Application
    Filed: May 28, 2009
    Publication date: May 26, 2011
    Inventors: Geoffrey C. Downton, Iain Cooper, Mike Williams, Robert Utter
  • Patent number: 7866418
    Abstract: Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteads (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm3/grams (“G·cm3/g”) or less. Other embodiments are directed to polycrystalline diamond compacts (“PDCs”) employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: January 11, 2011
    Assignee: US Synthetic Corporation
    Inventors: Kenneth E. Bertagnolli, Jiang Qian, Jason Wiggins, Michael A. Vail, Debkumar Mukhopadhyay
  • Publication number: 20090211816
    Abstract: A magnetic bit sub for collecting ferrous metal particles from oil wells, gas wells, and water wells during well drilling operations, well completion operations, and well maintenance operations provides tubular member with a threaded male connector on the upper end, for attachment to a drill string, and a threaded female connector on the lower end, for attachment to a drill bit, another portion of drill string, or another magnetic bit sub. Permanent magnets removably secured within recesses spaced along the outer surface of the tubular member collect ferrous metal particles coming into the proximity of the recessed permanent magnets for removal when the drill string is removed from the well.
    Type: Application
    Filed: February 26, 2008
    Publication date: August 27, 2009
    Inventor: Terril Bryan Williams
  • Patent number: 7513299
    Abstract: A magnetic tool for retrieval of metal debris from a well bore particularly adapted for use in coil tubing systems. The tool has a cylindrical body and a plurality of separate magnet assemblies mounted on the tool body. The magnet assemblies are separated by spacers, which define a secondary settling area for the metal objects attracted to the magnetic tool.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: April 7, 2009
    Assignee: Rattler Tools, Inc.
    Inventor: David J. Ruttley
  • Patent number: 7510031
    Abstract: A down-hole drilling assembly (12, 16) and control system (120) therefor, for directional drilling including a bent housing of a bottom hole assembly (18), utilizing a gearbox (102) to derive a higher speed (about 600 r.p.m.) rotational drive (104) from the drill string (10) to drive a drilling bit (20) via an electromagnetic clutch (110, 112) controlled by the control system (120) such that the clutch balances reaction torque when the orientation angle of the bent housing is correct.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: March 31, 2009
    Assignee: Russell Oil Exploration Limited
    Inventors: Michael King Russell, Colin Walker
  • Patent number: 6491117
    Abstract: A tool for retrieving metal debris from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body. Each magnet assembly has a magnet member, which forms a primary debris settling area. Each magnet member is protected by a magnet protector. A secondary debris settling area is formed between a magnet and an adjacent magnet protector to allow utilization of the residual magnetic force created by the magnet members. The secondary debris settling area occupies at least half of the surface area of the primary settling area.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: December 10, 2002
    Assignee: Rattler Tools, Inc.
    Inventor: David J. Ruttley
  • Patent number: 6357539
    Abstract: A tool for retrieving metal objects from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body. Each magnet assembly has a plurality of magnet members, which can be arcuate or longitudinal, covering a majority surface area of the tool body. In the embodiment of the invention having longitudinal members, magnet protectors are secured immediately adjacent to a corresponding magnet member for deflecting striking force of the metal particles being attracted to the magnet during rotation of the tool. A trap space if formed between the magnet and an adjacent magnet protector for retaining more metal particles within the magnet assemblies.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: March 19, 2002
    Assignee: Rattler Tools, Inc.
    Inventor: David J. Ruttley
  • Patent number: 6354386
    Abstract: A tool for retrieving metal objects from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body. Each magnet assembly has a plurality of magnet members, which can be arcuate or longitudinal, covering a majority surface area of the tool body. In the embodiment of the invention having longitudinal members, magnet protectors are secured immediately adjacent to a corresponding magnet member for deflecting striking force of the metal particles being attracted to the magnet during rotation of the tool. A trap space if formed between the magnet and an adjacent magnet protector for retaining more metal particles within the magnet assemblies.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: March 12, 2002
    Assignee: Rattler Tools, Inc.
    Inventor: David J. Ruttley
  • Patent number: 6308781
    Abstract: A tool for retrieving metal objects from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body. Each magnet assembly has a plurality of magnet members, which can be arcuate or longitudinal, covering a majority surface area of the tool body. In the embodiment of the invention having longitudinal members, magnet protectors are secured immediately adjacent to a corresponding magnet member for deflecting striking force of the metal particles being attracted to the magnet during rotation of the tool. A trap space if formed between the magnet and an adjacent magnet protector for retaining more metal particles within the magnet assemblies.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: October 30, 2001
    Assignee: Rattler Tools, Inc.
    Inventor: David J. Ruttley
  • Patent number: 6216787
    Abstract: A tool for retrieving metal objects from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body. Each magnet assembly has a plurality of magnet members, which can be arcuate or longitudinal, covering a majority surface area of the tool body. In the embodiment of the invention having longitudinal members, magnet protectors are secured immediately adjacent to a corresponding magnet member for deflecting striking force of the metal particles being attracted to the magnet during rotation of the tool. A trap space if formed between the magnet and an adjacent magnet protector for retaining more metal particles within the magnet assemblies.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: April 17, 2001
    Assignee: Rattler Tools, Inc.
    Inventor: David J. Ruttley
  • Patent number: 4296822
    Abstract: A multipurpose fluid flow assisted downhole tool that is adapted for attachment to the lower end of a pipe string to be extended into a well bore and which is capable of cutting sample cores from subsurface earth formations and removing the cores for evaluation. The tool is also capable of removing ferrous metal objects from the bottom of the well bore by both mechanical and magnetic means in conjunction with object movement assistance that is provided by flowing fluid in the vicinity of the bottom of the well bore. The well servicing tool includes an internal mechanism that has the capability of achieving reverse circulation of fluid in the vicinity of the bottom of the well bore which causes fluid flow from the annulus between the tool and the well bore, upwardly into an internal object collection chamber defined by the well tool and then outwardly of the well tool and upwardly through the annulus between the pipe string and the well bore to the surface.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: October 27, 1981
    Assignee: Omega Tools International
    Inventor: Ronald D. Ormsby
  • Patent number: 4226285
    Abstract: An improved magnetic junk retriever arranged to magnetize a drill bit just prior to its removal from the bottom of the well bore. A wound, electromagnet subassembly is connected between the drill bit and the drill collar. A battery-pack tool is used to energize the electromagnet by lowering the tool through the bore of the drill pipe and collars to contact pins projecting into the bore of the sub. Energizing the electromagnet causes the drill bit to be magnetized.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: October 7, 1980
    Inventor: Meekie D. Moseley, Jr.
  • Patent number: 4125167
    Abstract: A large diameter drill bit having a plurality of rolling cutters is provided with permanent magnets mounted on flexible flaps to collect magnetic debris on the bottom of a drill hole. A flap carrying a permanent magnet is mounted adjacent each cutter, or flaps carrying magnets are formed in a radially extending row to sweep the bottom of the hole as the bit rotates. In another form, magnets are included in wheels which roll on the bottom of the hole to collect the magnetic debris.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: November 14, 1978
    Assignee: Smith International, Inc.
    Inventors: Robert F. Evans, James H. Allen