Fluid Rotary Type Patents (Class 175/107)
  • Patent number: 9815096
    Abstract: A method and a device for cleaning an area (48) located inside a restriction (46) by means of a mechanical cleaning tool (1). The restriction (46) having a smaller cross-sectional dimension than the area (48) to be cleaned. The method includes the steps of moving the cleaning tool (1) into or through the restriction (46); moving a mechanical cleaning body (18) radially out into abutment against the area (48) to be cleaned; rotating the cleaning body (18) relative to the area (48) to be cleaned; moving the mechanical cleaning body (18) radially in from the area (48) which has been cleaned; and moving the cleaning tool (1) out from the restriction (46).
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: November 14, 2017
    Assignee: Altus Intervention AS
    Inventor: Espen Osaland
  • Patent number: 9816549
    Abstract: Various embodiments relate to a bearing assembly including a support ring configured to reduce thermal warping under operational temperature conditions, a bearing apparatus that may utilize such a thrust-bearing assembly, and applications that incorporate the disclosed bearing apparatuses such as downhole motors in subterranean drilling systems, directional drilling systems, and many other apparatuses. In an embodiment, a bearing assembly includes a plurality of superhard bearing elements distributed circumferentially about an axis. The thrust-bearing assembly further includes a support ring having the plurality of superhard bearing elements mounted thereto.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 14, 2017
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Timothy N. Sexton, Craig H. Cooley
  • Patent number: 9810260
    Abstract: A bearing device for a beauty and health roller which presents no risk of bathwater or bathtub contamination, is hygienic, is less heavy than conventional ball bearings, is devoid of roller rattle, and exhibits a small rotational resistance of the rollers. The bearing device for a beauty and health roller is used in a beauty and health roller having a grippable body and a roller arranged at the end portion of the body, and rotatably supports the roller on a supporting shaft provided to the end portion of the body. The bearing device comprises a radial bearing 5 into which the supporting shaft is fitted and which rotatably supports the roller on the supporting shaft 2a.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: November 7, 2017
    Assignees: NTN CORPORATION, MTG CO., LTD
    Inventors: Naonari Tanigawa, Tsuyoshi Matsushita
  • Patent number: 9771787
    Abstract: Embodiments of a downhole drilling assembly generally include a rotatable lower drilling assembly, a rotatable upper drilling assembly, and a drill bit, wherein the upper drilling assembly contains a mud motor adapted for clockwise rotation of its stator and counter-clockwise rotation of its rotor, whereby the lower drilling assembly is rotatable in the opposite direction of the upper drilling assembly or maintainable in a non-rotating state. The apparatus further includes sensors adapted to continuously measure physical properties and/or drilling parameters and a mechanism for continuously transmitting information relating thereto to the surface.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 26, 2017
    Inventor: Gary Smith
  • Patent number: 9765819
    Abstract: Bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements may include a bearing surface. The bearing assembly may also include a support ring structure having a support ring that carries the superhard bearing elements. The support ring structure may include at least one erosion resistant region exhibiting a higher erosion resistance than another region of the support ring.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: September 19, 2017
    Assignee: US SYNTHETIC CORPORATION
    Inventor: Timothy N. Sexton
  • Patent number: 9765584
    Abstract: A downhole tool assembly for use in a drilling string includes a motor, a flow head, and a flow restrictor. The flow head is coupled to the motor and comprises a plurality of ports permitting fluid communication therethrough. The flow restrictor is in fluid communication with the flow head and comprises a plurality of ports permitting fluid communication therethrough. The flow restrictor is stationary with respect to the flow head, which rotates. As the flow head rotates, one or more of the plurality of ports of the flow head enters into and out of alignment with one or more of the plurality of ports of the flow restrictor such that fluid flow through the ports of the flow head and the flow restrictor is constrained to a cyclic, polyrhythmic pattern optionally including at least one interval where the fluid flow is substantially blocked by the flow restrictor.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: September 19, 2017
    Assignee: TLL Oilfield Consulting Ltd.
    Inventors: Troy Lorenson, David Nicholson, Petr Macek
  • Patent number: 9739120
    Abstract: A method of activating a downhole tool can include configuring the tool having an electrical power source, an electrical load, control circuitry which controls the electrical load, and a switch which selectively permits current flow between the power source and the circuitry, and generating electricity, thereby causing the switch to permit current flow between the power source and the circuitry. A downhole tool can include an electrical power source, an electrical load, control circuitry, a switch which selectively permits current flow between the power source and the circuitry, and a generator. Another method can include displacing a fluid and/or an object at the tool, generating electricity in response to the displacing, permitting current flow between an electrical power source and a control circuitry in response to the generating and, after the permitting and in response to detection of a predetermined signal, the circuitry causing activation of an electrical load.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: August 22, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Zachary R. Murphree, Michael L. Fripp, Donald G. Kyle
  • Patent number: 9726007
    Abstract: A drillstring first tube portion (10) for connection to further tube portions (24,26) of a drillstring via respective connection means has a side wall (16) including non ferromagnetic material, and at least one downhole survey device (12) mounted directly or indirectly on or within the side wall. The survey device has at least one survey instrument to obtain survey data, a power source (22) and wireless communication means (18) to wirelessly receive and/or transmit survey data within or on the side wall. A method of conducting a downhole survey of drilling using such an apparatus is also disclosed, as well as a method of obtaining data gathered downhole. The survey device and a core orientation device (32) may communicate wirelessly, such as when passing each other.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 8, 2017
    Assignee: Globaltech Corporation Pty Ltd
    Inventors: Khaled Hejleh, Gordon Stewart, Brett James Wilkinson, Michael Alan Klass, Johan Anwar
  • Patent number: 9695637
    Abstract: A turbine drive may include a rotor that includes multiple turbine blades arranged in one or more turbine stages, as well as a stator cooperating with the rotor to direct fluid against the turbine blades and convert hydraulic, kinetic energy into rotational energy. The rotor may be fixed to the shaft to rotate synchronously therewith. The stator may be formed of multiple components that can be coupled together to define the stator and encompass the turbine blades of the turbine stages of the rotor. Two stator halves may each include vanes for positioning above and below a corresponding turbine stage, to direct fluid against the turbine blades. The stator may also be connected to a housing that encompasses the stator. Longitudinal slots and tabs on the stator and housing may hold the stator stationary relative to the housing.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 4, 2017
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Somasundaram Valliyappan, Jeffrey N. Dodge
  • Patent number: 9695638
    Abstract: A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: July 4, 2017
    Inventors: William Murray, Lance D. Underwood, Peter Thomas Cariveau, Brian P. Jarvis, Nigel Wilcox, Brian Williams, Geoffrey Downton, Lawrence Lee, Shun'etsu Onodera, Daniel Alvarado, Maxim Pushkarev, Gokturk Tunc, Andrei Plop
  • Patent number: 9670742
    Abstract: A stabilizer for use in a wellbore string, the stabilizer having an elongate body having an upper end for connection to the wellbore string and a lower end for connection to a wellbore string, a long axis between the ends and an outer surface; and a first cutting ring mounted on the elongate body and exposed on the outer surface with an annular outer surface of the first cutting ring encircling the elongate body.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: June 6, 2017
    Inventor: Charles Abernethy Anderson
  • Patent number: 9644427
    Abstract: A drill string section for directional drilling includes an outer casing which encases an adjustment mechanism for adjusting drilling direction and angular deflection during drilling. The adjustment mechanism has an outer shaft that is rotatably arranged relative to the outer casing and is configured with an axial eccentric first bore having a first bore axis that is parallel to the centre axis. The adjustment mechanism further includes an inner shaft that is rotatably arranged in the first bore and is configured with an axial, eccentric second bore for passage of a drive shaft for a drill bit.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 9, 2017
    Assignee: NABORS LUX FINANCE 2 SARL
    Inventor: Tore Kvalvik
  • Patent number: 9631430
    Abstract: Drill string assemblies, bottom hole assemblies (BHAs), and powertrains for a BHA in a drill string are presented herein. A BHA for use in a drill string to drill boreholes in an earth formation is disclosed. The BHA includes a housing, a drill bit rotatably coupled to the housing, and a fluidly driven motor assembly, such as a positive displacement motor (PDM). The PDM assembly includes a drive shaft to output rotational drive forces generated by the PDM. Also included is a differential gear set with a first gear member coupled to the drive shaft, a second gear member intermeshing the first gear member with the housing, and a third gear member couple to the drill bit. The differential gear set transmits the rotational drive forces from the drive shaft to the drill bit and rotates the drill bit at a speed greater than the speed of the PDM assembly.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 25, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Andrew Jerome Strittmatter
  • Patent number: 9624728
    Abstract: This invention relates to a controllable deflection tool. The controllable deflection tool is likely to have its greatest utility as part of a downhole assembly to steer a drill bit during drilling for oil and gas. There is provided a controllable deflection tool having a first end and a second end, the tool having: a conduit for a working fluid; a rotary element adapted for rotation within the tool; a deflection member; a vane motor configured to rotate the deflection member relative to the rotary element; and a valve for controlling the flow of working fluid to the vane motor. There is also provided a downhole steering assembly and a method of steering a downhole drilling assembly incorporating the controllable deflection tool.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 18, 2017
    Assignee: Smart Stabilizer Systems Limited
    Inventors: Daniel Brendan Crowley, Colin Walker
  • Patent number: 9605481
    Abstract: A downhole adjustable drilling inclination tool including an outer housing, an inner housing, a compression spring, a piston assembly, and a tilt housing. The piston assembly is fluidly controlled to move axially along the outer diameter of a bottom end portion of the inner housing so that a rotatable control ring moves about a guide pin to hold a neutral, straight, or bent position of the piston assembly corresponding to an amount of compression of the compression spring. The tilt housing partially disposed within the outer housing includes a bolt plate pin channel configured to receive a bolt plate pin of the piston assembly that travels to tilt the tilt housing by a tilting mechanism that connects the tilt housing to the outer housing and position the tilt housing in a neutral, straight, or bent position corresponding to the neutral, straight, or bent position of the piston assembly.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 28, 2017
    Assignee: SMART DOWNHOLE TOOLS B.V.
    Inventor: Johannes Thomas Bleeker
  • Patent number: 9605482
    Abstract: Adjustable drill string housings are described for use in the directional drilling of wellbores, e.g. wellbores for hydrocarbon recovery wells. The adjustable drill string housings permit adjustment of a bend angle in the housings without removing the housings from a wellbore. The bend angle can be adjusted by changing the internal stresses in a support member carried by the housings. The bend angle may also be adjusted by causing failure of sacrificial support members carried by the housings, and the failure may be caused by delivering chemicals through a chemical delivery system to the sacrificial support members. Methods of operating the adjustable drill string housings include multi-lateral drilling operations wherein the bend angle is adjusted when a casing window has been detected.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: March 28, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Gustav E. Lange, Fraser Wheeler
  • Patent number: 9598923
    Abstract: A downhole tool comprises a housing having a longitudinal bore and an agitator assembly disposed within the longitudinal bore of the housing. A removable component is disposed within the longitudinal bore and can be removed from the housing so as to at least partially open the longitudinal bore.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: March 21, 2017
    Assignee: National Oilwell Varco, L.P.
    Inventors: Russell Gilleylen, Haresh Ghansyam, James R. Streater, Jr., Deepthi Setlur, Alan H. Kitching, Shiran Waas, Murray Gilbertson
  • Patent number: 9587443
    Abstract: Provided is apparatus for use in resonance enhanced rotary drilling, which apparatus comprises: (i) an upper load-cell for measuring static and dynamic axial loading; (ii) a vibration isolation unit; (iii) optionally an oscillator back mass; (iv) an oscillator for applying axial oscillatory loading to the rotary drill-bit; (v) a vibration transmission unit; (vi) a lower load-cell for measuring static and dynamic axial loading; (vii) a drill-bit connector; and (viii) a drill-bit, wherein the upper load-cell is positioned above the vibration isolation unit and the lower load-cell is positioned between the vibration transmission unit and the drill-bit, and wherein the upper and lower load-cells are connected to a controller in order to provide down-hole closed loop real time control of the oscillator.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: March 7, 2017
    Assignee: ITI SCOTLAND LIMITED
    Inventor: Marian Wiercigroch
  • Patent number: 9556682
    Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer may include a body having an axial bore extending at least partially therethrough. An electromagnetic activation system may be disposed at least partially within the bore of the body. A valve may be disposed within the bore of the body and coupled to the electromagnetic activation system. The valve may include a mobile element and a static element. The mobile element may be coupled to the electromagnetic activation system and move from a first position where the mobile element obstructs fluid flow through the valve to a second position where the mobile element permits fluid flow through the valve. A cutter block may be movably coupled to the body and move radially-outward as the mobile element moves from the first position to the second position.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 31, 2017
    Assignee: Smith International, Inc.
    Inventors: Nathan Fuller, Craig Boswell, Jacques Orban, Jonathan Marshall, Jordan Englund
  • Patent number: 9556678
    Abstract: A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial bearing assembly, and a toolface controller, whereby the angular relationship of a drill bit and its toolface angle may be actively managed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 31, 2017
    Assignee: Penny Technologies S.À R.L.
    Inventors: Stuart Schaaf, Marcus D. Wernig
  • Patent number: 9546518
    Abstract: Power section and transmission components within a downhole drilling motor that may reduce or eliminate axial thrust loads on the transmission of the drilling motor are provided. The transmission may utilize a driven shaft coupled between two connectors that enable torque transfer to and from the transmission while allowing the driven shaft to move freely in two planes. The power section may include a rotor with a through bore and a flex-shaft disposed in the through bore. The flex-shaft may be designed to rotate with the rotor. The flex-shaft may extend beyond the length of the rotor in one direction to be centralized within a bearing assembly. The opposite end of the flex-shaft may include a load-carrying shoulder that is retained in the bottom end of the rotor.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: January 17, 2017
    Assignee: Axon Downhole Products, Inc.
    Inventors: Curtis E. Leitko, Jr., Rory J. Mallard, Jr., Gerard T. Pittard
  • Patent number: 9547093
    Abstract: A radiation camera system and method incorporating a radiation sensor/detector (RSD) and automated operation of coded camera aperture masks (CAMs) is disclosed that may be advantageously applied to real-time tracking of radiological hot spots in crisis, maintenance, decontamination, and/or maintenance scenarios. The system/method integrates automated camera RSD positioning, CAM identification, and CAM rotation. The system incorporates computerized controls in conjunction with remotely controlled horizontal/vertical tilting motors to direct the RSD aperture position and view of the RSD. CAMs may be installed in the camera manually and are automatically identified by the system via the use of encoding magnets that are detected using a Hall-effect sensor. The CAMs may be rotated after installation in the camera by computer control to predefined positions such as “mask” and “anti-mask” to affect the desired degree of radiation screening to be applied to the RSD.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: January 17, 2017
    Assignee: CANBERRA FRANCE SAS
    Inventors: Daniel De Toro, Nabil Menaa, Roger Abou-Khalil, Philippe Talent, Florent Bonnet, Audrey Patoz, Christian Duloisy, Khalil Amgarou
  • Patent number: 9540877
    Abstract: A valve (11) for controlling the flow of a drilling fluid through a down-hole tool (10) positionable in a wellbore penetrating a subterranean formation. The down-hole tool has a housing with a drilling motor therein and a drill bit (1) at an end thereof. The drilling motor (9) has a housing with a rotor (206) rotationally movable in a rotor channel (204) as the drilling fluid passes through a rotor channel between the housing and the rotor. The rotor has a bypass channel therethrough for bypassing a portion of the drilling fluid therethrough. The valve includes a valve plate positionable upstream of the motor. The valve plate (200) has at least one flow passage (226) and at least one bypass passage (220) therethrough. The flow passage is in fluid communication with the rotor channel for passing the drilling fluid therethrough.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: January 10, 2017
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Curtis Lanning, Dong Phung, Aaron Schen, Jacob Riddel
  • Patent number: 9493989
    Abstract: A method of forming a wellbore includes providing a drilling assembly comprising one or more lengths of casing and an axially retracting assembly having a first tubular; a second tubular at least partially disposed in the first tubular and axially fixed thereto; and a support member disposed in the second tubular and movable from a first axial position to a second axial position relative to the second tubular, wherein, in the first axial position, the support member maintains the second tubular axially fixed to the first tubular, and in the second axial position, allows the second tubular to move relative to the first tubular; and an earth removal member disposed below the axially retracting assembly. The method also includes rotating the earth removal member to form the wellbore; moving the support member to the second axial position; and reducing a length of the axially retracting assembly.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 15, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Eric M. Twardowski, Jose A. Trevino, Albert C. Odell, II, Tuong Thanh Le, Wei Jake Xu, Guy F. Feasey
  • Patent number: 9447663
    Abstract: An abrasive perforator tool with a bypass flow channel. The tool comprises a tubular body or housing with perforating nozzles in the sidewall. A sleeve assembly inside the central bore of the tool provides for sequential deployment of first and second sleeves. Prior to deployment of the sleeve assembly, pressurized fluid can be passed through the tool to operate other tools beneath the perforator in the bottom hole assembly. Deployment of the first sleeve diverts pressurized fluid through the nozzles for perforating. Deployment of the second sleeve redirects the pressurized flow through the outlet of the tool to resume operation of other tools below the perforator.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: September 20, 2016
    Assignee: THRU TUBING SOLUTIONS, INC.
    Inventors: Michael L. Connell, Robert J. Farkas
  • Patent number: 9403260
    Abstract: Polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs. In an embodiment, the PDC includes a polycrystalline diamond (“PCD”) table having at least a portion of a metal-solvent catalyst removed therefrom. Removing at least a portion of a metal-solvent catalyst from the PCD table may increase the porosity of the PCD table relative to a PCD table that has not been treated to remove the metal-solvent catalyst. Likewise, removing at least a portion of a metal-solvent catalyst from the PCD table may decrease the specific magnetic saturation and increase the coercivity of the PCD table relative to a PCD table that has not been treated to remove the metal-solvent catalyst.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 2, 2016
    Assignee: US Synthetic Corporation
    Inventors: Stephen R. Adams, Debkumar Mukhopadhyay, Kenneth E. Bertagnolli
  • Patent number: 9400232
    Abstract: A measuring rod capable of receiving a plurality of instrumentation cables transmitting data to a data processing device, includes a section of epicycloidal shape.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: July 26, 2016
    Assignee: SNECMA
    Inventor: Jeremy Giordan
  • Patent number: 9377056
    Abstract: There is provided a method of assembling a bearing assembly, having the steps of mounting a bearing stack on an inner mandrel, the bearing stack having a plurality of inner and outer races, compressing the plurality of inner races between first and second inner shoulders to within a predetermined range of compressive loads, the first and second inner shoulders being carried by the inner mandrel, inserting the inner mandrel and bearing stack into an outer housing, compressing the plurality of outer races between first and second outer shoulders to within a predetermined range of compressive loads, the first and second outer shoulders being carried by the housing, wherein at least one of the first outer shoulder and the second outer shoulder comprises a deformable shim that follows a deformation curve having at least a plastic deformation component when compressed across the predetermined range of compressive loads.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: June 28, 2016
    Assignee: Cathedral Energy Services Ltd.
    Inventor: Dean Norman Foote
  • Patent number: 9366100
    Abstract: A vibrator apparatus to be positioned onto a pipe string is disclosed. The apparatus is comprised of a tubular housing, a tubular stator having a radial fluid opening, and a rotating rotor shaft with a longitudinally extending fluid bore and at least one radially extending fluid passage that intermittently aligns with the stator fluid opening. A rotation generator is provided to rotate the rotor shaft in response to fluid flow. Fluid flow through the fluid bore of the rotor shaft is discharged from the radially extending fluid passage of the rotor as it rotates in response to fluid flow and is intermittently interrupted by the stator as the rotor is rotated past the radial fluid opening in the stator thereby creating pulses in the fluid column and vibrating the pipe string.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: June 14, 2016
    Assignee: KLX Energy Services LLC
    Inventor: Toby Scott Baudoin
  • Patent number: 9359821
    Abstract: A drill bit comprises a plurality of annular blades coupled to a bit body. A plurality of gauge pads is coupled to the bit body and defines an outer cutting diameter. A circumferentially continuous gauge ring is coupled to the bit body and defines an inner cutting diameter. An inner cutting structure is coupled to the bit body and has a cutting diameter substantially equal to the inner cutting diameter.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: June 7, 2016
    Assignee: National Oilwell Varco, L.P.
    Inventor: Richard J. Sauvageau
  • Patent number: 9322218
    Abstract: A borehole cutting assembly for directional cutting in a borehole, the assembly comprising an input pipe and a cutting head rotatably mounted on the input pipe such that the orientation of the cutting head relative to the input pipe can be altered to determine the direction of cutting of the borehole. A cutting tool and cutting tool motor are mounted on the cutting head to enable the cutting tool to be rotatably driven relative to the cutting head so that when the cutting tool is loaded in use the cutting head is subject to a tool reaction torque that acts to rotate the cutting head to change the orientation of the cutting head. The cutting head is rotatably mounted on the input pipe by a controlled torque coupling comprising a progressive cavity pump having a rotor and a stator each provided with drive formations arranged to define a fluid flow cavity therebetween. Rotation of the rotor relative to the stator forces fluid flow through the cavity to counteract the tool reaction torque.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: April 26, 2016
    Inventors: Michael King Russell, Michael Andrew Yuratich
  • Patent number: 9303686
    Abstract: A bearing assembly has a bearing chamber, an inner mandrel having a first load bearing shoulder and an outer housing having an second load bearing shoulder. The first and second load bearing shoulders are opposed and are within the bearing chamber. Seals retain a bearing lubricant within the bearing chamber. A cylindrical stack of bearings are positioned between the first and second load bearing shoulders. Each row of bearings has an inner race supporting the first load bearing shoulder and an outer race supporting the second load bearing shoulder. The bearing assembly may be incorporated into a downhole tool. The downhole tool may continue to be operated after the seals fail by flowing a working fluid through the bearings.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: April 5, 2016
    Assignee: Cathedral Energy Services Ltd.
    Inventors: Dean Foote, Randy Pustanyk
  • Patent number: 9279289
    Abstract: A mud motor radial bearing, a combination flow diverter and integral radial mud motor bearing, and a mud motor bearing assembly including the combination. The flow diverter includes a body defining threaded box ends, a concentric longitudinal bore, a generally cylindrical outer surface, and a longitudinal axis. The longitudinal bore fluidly connects the first and second threaded box ends. The first threaded box end connects to a pin of a transmission of a mud motor rotor, and the second threaded box end connects to a pin of a mandrel. A portion of the generally cylindrical outer surface of the body in a region of the second threaded box end has bonded thereto a bearing material. The bearing material includes a plurality of tungsten carbide portions surrounded by a hard metal alloy matrix binder.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 8, 2016
    Assignee: RENEGADE MANUFACTURING, LLC
    Inventor: Scott Kerstetter
  • Patent number: 9267539
    Abstract: A mud motor bearing assembly for use in drilling a hydrocarbon well. The bearing assembly includes a bearing section containing stationary bearing rigs and rotating bearing rings in stacked arrangement. The bearing rings have wedge-shaped projections. The wedge-shaped projections of two adjacent stationary bearing rings form a recess to accommodate the projection of a rotating bearing ring in sliding engagement. The bearing assembly is capable of bearing both radial and axial loads.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: February 23, 2016
    Assignee: Ashmin, LC
    Inventors: Gunther HH Von Gynz-Rekowski, William C. Herben, Daryl E. Bolejack
  • Patent number: 9228584
    Abstract: Reinforced directional drilling assemblies and methods of forming reinforced directional drilling assemblies are provided. Strengthening materials may be incorporated into a resilient layer and/or a polymer-based composite material within a directional drilling assembly to improve the durability and performance of a power section within the directional drilling assembly. Inclusion of strengthening materials within a directional drilling assembly may provide a method to detect the status of a power section and send a signal from downhole upon detecting status of the power section. Inclusion of strengthening materials also may provide a method to collect data about operating conditions, including pressure, temperature, torque, RPM, stress level, shock, vibration, downhole weight on bit, and/or equivalent circulating density to send to the surface or to MWD/LWD systems. The strengthening materials may collect data by themselves or in conjunction with a sensor.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: January 5, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Hossein Akbari, Geraint Jones
  • Patent number: 9222512
    Abstract: Various embodiments of the invention relate to bearing assemblies, apparatuses and motor assemblies that include geometric features configured to impart a selected amount of heat transfer and/or hydrodynamic film formation. In an embodiment, a bearing assembly may include a plurality of superhard bearing pads distributed circumferentially about an axis. At least some of the plurality of superhard bearing pads may include a plurality of sub-superhard bearing elements defining a bearing surface. At least some of the plurality of sub-superhard bearing elements may be spaced from one another by one or more voids to impart a selected amount of heat transfer and hydrodynamic film formation thereon during operation. The bearing assembly may also include a support ring that carries the plurality of superhard bearing pads. In addition, at least a portion of the sub-superhard bearing elements may extend beyond the support ring.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 29, 2015
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Timothy N. Sexton, Craig H. Cooley, Cody W. Knuteson
  • Patent number: 9222309
    Abstract: In one aspect, an apparatus for forming a borehole is provided that in one embodiment may include a first milling device configured to rotate at a first rotational speed in a first direction, and a second milling device around the first milling device configured to rotate at a second rotational speed in a second direction, wherein the rotational first speed is greater than the second rotational speed. In another aspect, the first and the second milling devices may be configured to rotate in the same direction at different speeds.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 29, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Hayden V. Fagg
  • Patent number: 9181756
    Abstract: A drill bit and method of drilling a wellbore. The drill bit includes a pad configured to extend and retract from a surface of the drill bit, and a force application device configured to extend and retract the pad. The force application device includes a screw driven by an electric motor that linearly moves a drive unit to extend and retract the pad from the drill bit surface. The drill bit may be conveyed by a drill string and the pad may be extended from the drill bit face to drill the wellbore.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: November 10, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Thorsten Schwefe, Dan Raz, Gregory Rinberg
  • Patent number: 9169694
    Abstract: The subject matter of this specification can be embodied in, among other things, a tool string positionable in a wellbore that includes a spur gear driven by a source of input rotation, a planetary gearbox having an attachment structure to connect to the spur gear. The gearbox includes a central sun gear, a collection of planet gears disposed in a planet gear carrier disposed around the central sun gear, and a ring gear disposed around the planet gears and planet gear carrier. The attachment structure drives a hydraulic pump or electrical generator at a rotational speed different than a rotational speed of the source of input rotation.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: October 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Daniel Martin Winslow
  • Patent number: 9163457
    Abstract: In an oil-sealed bearing assembly in the bearing section of a mud motor, in which a mandrel is rotatably disposed within a cylindrical housing, a cylindrical sleeve is disposed coaxially and rotatably around the mandrel, with the sleeve being non-rotatably mounted to an inner surface of the housing, thereby forming an annular piston chamber forming part of a generally annular oil reservoir. The sleeve provides radial support to the mandrel along the length of the piston chamber by virtue of the flexural stiffness of the sleeve. The mandrel rotates within the sleeve, with a radial bearing being provided between the sleeve and the mandrel. An annular piston is axially movable within the piston chamber in response to variations in the volume of oil in the reservoir. The piston slides within the piston chamber without rotation relative to either the housing or the sleeve.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: October 20, 2015
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventor: Nicholas Marchand
  • Patent number: 9140070
    Abstract: The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: September 22, 2015
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger Schultz, Brock Watson, Andy Ferguson
  • Patent number: 9127708
    Abstract: Embodiments of the invention relate to bearing apparatuses in which one bearing surface of the bearing apparatus includes diamond, while another bearing surface includes a non-diamond superhard material (e.g., silicon carbide). For example, a bearing apparatus may include a bearing stator assembly and a bearing rotor assembly. The bearing stator assembly and bearing rotor assembly each include a support ring and one or more superhard bearing elements generally opposed to one another. The bearing surface(s) of the rotor or stator may include diamond, while the bearing surface(s) of the other of the rotor or stator do not include diamond. Another bearing apparatus may include both thrust- and radial bearing components. The generally opposed thrust-bearing elements may include diamond, while the generally opposed radial bearing elements may not include diamond, but include a non-diamond superhard material, such as silicon carbide.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 8, 2015
    Assignee: US SYNTHETIC CORPORATION
    Inventor: Jair J Gonzalez
  • Patent number: 9109397
    Abstract: Rock drilling equipment and drill string components (2;18) for top hammer drilling and down-the-hole drilling for positioning between a drill rig and a drill bit include a pipe-shaped element (3;19), which is arranged for transferring only rotational movements from the drill rig to the drill hit. A vibration-damping structure (12) is arranged adjoining to at least a part of an inside (11) of the pipe-shaped element in a space (41) formed inwardly of the inside (11).
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: August 18, 2015
    Assignee: Atlas Copco Secoroc AB
    Inventors: Jimmy Carlsson, Göran Stenberg, Alexander Beronius, Mattias Göthberg, Samuel Enblom
  • Patent number: 9103175
    Abstract: A drill bit includes a pad configured to extend and retract from a surface of the drill bit. A force application device extends and retracts the pad. The force application device includes a hydraulically-operated rotating member coupled to a speed reduction device configured to apply a force on drive unit that applies a force on the pad to cause the pad to extend from the drill bit face.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 11, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Thorsten Schwefe
  • Patent number: 9091123
    Abstract: A pressure pulse generating method and apparatus for use with a drill string includes a top and bottom subs for attaching the apparatus within the drill string; a rotor/stator; a drive assembly; and a nozzle sub which includes a nozzle assembly comprising a nozzle holder and a replaceable nozzle; and a nozzle housing having pulse openings. The nozzle holder has fluid ports which periodically align with the pulse openings as the nozzle holder rotates within the nozzle housing to achieve a desired pulse amplitude, frequency and waveform.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: July 28, 2015
    Assignee: Cougar Drilling Solutions Inc.
    Inventor: Tom Gust
  • Patent number: 9080384
    Abstract: An apparatus for cutting a wellbore includes a motor having a stator and a rotor. The rotor has an output shaft connected to a cutting structure. The stator and rotor are spaced radially outwardly of the axis of rotation of the rotor such that at least one of the stator and the rotor had an access bore extending through the motor to adjacent the cutting structure. A further object can pass therethrough, without obstruction. The further object comprises a further cutting. A flow diverter is disposed in the motor proximate a connection between the motor and a wellbore tubular, and has a first fluid outlet in fluid communication with a power section of the motor, and a second fluid outlet in fluid communication with the access bore. The flow diverter is coupled to the stator such that axial loading created by fluid pressure is substantially transferred to the stator.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: July 14, 2015
    Assignee: Deep Casing Tools, Ltd.
    Inventors: Tomasz J Walerianczyk, Edward D. Scott, Wojciech Buczak
  • Patent number: 9045941
    Abstract: A bearing assembly for use in a down-hole drilling apparatus includes a bearing housing configured for connection to a drill string and a mandrel disposed at least partially within the bearing housing. The mandrel is configured to rotate about a longitudinal axis extending therethrough. A hybrid thrust bearing package is provided and disposed radially between the bearing housing and the mandrel. The hybrid thrust bearing package includes a plurality of ball bearings movable through at least one race, an annular stator supported by the bearing housing and an annular rotor ring supported on and rotatable with the mandrel. The annular stator and rotor rings define first and second flat PDC bearing surfaces engaged with one another at a bearing interface oriented generally orthogonally with respect to the longitudinal axis.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: June 2, 2015
    Assignee: SCIENTIFIC DRILLING INTERNATIONAL, INC.
    Inventor: Mark Chustz
  • Publication number: 20150136490
    Abstract: A steerable dual drilling bit having an outer reamer bit defining a central opening and having an inner core removal bit being rotatably driven by a mud motor that is supported within a tubular housing by the outer reamer bit. The dual drilling bit is capable of being threaded to the bit box of a rotary drill string or a straight or bent housing drilling system. The dual drilling mechanism is of sufficiently limited length that it is capable is being efficiently steered for directional drilling. The reamer and core removal bits are arranged to continuously cut away a formation core and to employ the core for rotational stabilization of the reamer bit during drilling.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 21, 2015
    Inventor: EDWIN J. BROUSSARD, JR.
  • Publication number: 20150129314
    Abstract: A downhole motor having a motor section, a drive shaft section, and an output shaft section. The output shaft section has a rotatable output shaft with a first end and a second end. A first thrust bearing assembly proximal to the first end of the output shaft, a second thrust bearing assembly proximal to second end to said output shaft. A radial bearing assembly disposed between the first and second thrust bearing assemblies.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 14, 2015
    Inventor: Keith A. Bullin
  • Publication number: 20150114722
    Abstract: To obtain technical result—creation of a new downhole screw motor ensuring a higher efficiency and increasing performance coefficient of a motor and motor operational life, improving of drilling efficiency—in a downhole screw motor comprising a stator having an internal screw surface, a rotor placed inside a stator having external screw surface, a sealing system, a spindle assembly, as per the invention as a sealing system the following system is used: a system, which contains a contact elastic, multilayered sealing agent, moreover a tough straps making layers in a sealing agent, have close ring-like shapes and are similar to the surface, to which they are fixed; the quantity of layers of a sealing agent is not more than six; in the layers separately gas and/or liquid is used as sealing media; a sealing system contains a separation joint of drilling mud flow, an electrogenerating turbine, a pumping unit for drill mud, regulating units of movement direction of sealing media and drill mud, a mud hopper, automat
    Type: Application
    Filed: May 6, 2013
    Publication date: April 30, 2015
    Inventor: Alibi AKHMEJANOV