With Fluid Conduit Lining Or Element (e.g., Slush Tube) Patents (Class 175/393)
  • Patent number: 9695687
    Abstract: A block for use in a cutting assembly wherein the block includes a block body that contains a reservoir with coolant therein. The block body contains a top passage operative communication with the reservoir so as to receive coolant. The top passage has an axial forward top passage section terminating in an axial forward top passage end. The axial forward top passage section has an axial forward top passage section central longitudinal axis. The top passage further has an axial rearward top passage section terminating in an axial rearward top passage end. The axial rearward top passage section has axial rearward top passage section central longitudinal axis. The axial forward top passage section central longitudinal axis is disposed at an angle with respect to the axial rearward top passage section central longitudinal axis.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: July 4, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Luke A. Weber, Eric P. Helsel, David S. Rose, Jeremiah L. Jonsrud
  • Patent number: 9518504
    Abstract: The present invention provides an air intake structure of an engine capable of cooling intake air compressed by a supercharger by reducing pressure loss. An air intake structure of an engine (13) having a supercharger (20) supercharging air and an air intake chamber (22) receiving the air supercharged by the supercharger (20) and sending the supercharged air to the engine, wherein a throttle body (23) is connected to the air intake downstream side of the air intake chamber (22), wherein an air intake port (131a) of a cylinder head (131) of the engine (13) is connected to the air intake downstream side of the throttle body (23), wherein a liquid cooling type intercooler (30) is provided in the air intake chamber (22).
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: December 13, 2016
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventor: Yoshinobu Tanaka
  • Patent number: 9145742
    Abstract: In one aspect of the present invention, a drill string has a drill bit with a body intermediate a shank and a working face. The working face has a plurality of blades converging at a center of the working surface and diverging towards a gauge of the working face. At least one blade has a cutting element with a carbide substrate bonded to a diamond working end with a pointed geometry. The diamond working end also has a central axis which intersects an apex of the pointed geometry. The axis is oriented between a 25 and 85 degree positive rake angle.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 29, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Ronald B. Crockett, John D. Bailey
  • Publication number: 20150047905
    Abstract: A drill bit assembly that includes a shank including a shank axis, first and second ends, a drill bit seat at the second end and a central flow bore extending axially from the first end. Additionally, the assembly includes a sleeve disposed about and translatable axially relative to the shank and a drill bit rotatably coupled to the sleeve. The drill bit includes a first bit face having a first cutting structure configured to engage an earthen formation, and a second bit face having a second cutting structure configured to engage the earthen formation. The drill bit is configured to rotate about the about the shank axis in a cutting direction, and to rotate about an axis of rotation being orthogonal to the shank axis to selectively expose the first or second cutting surface to the earthen formation. The seat is configured to receive the first or second bit face.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Applicant: NATIONAL OILWELL DHT, L.P.
    Inventors: Kevin W. Clark, Chinedu I. Nduka
  • Patent number: 8899355
    Abstract: A drill bit is disclosed, comprising: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending from the center towards the gage of the bit which has been designed to increase the velocity across the cutting elements.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: December 2, 2014
    Assignee: Northbasin Energy Services Inc.
    Inventors: Geir Hareland, Jeff Janzen
  • Patent number: 8893778
    Abstract: A system for a drilling and fracturing a wellbore in a single trip includes a drill string, drill bit, and a fluid flow means for delivering fluid through the string and drill bit. The drill bit includes a body with cutting elements, and nozzles between the cutting elements for washing away drilling generated cuttings. A packer on the drill bit selectively seals with an inner surface of the wellbore. Deploying the packer at a designated spot in the wellbore defines a fracturing zone in the wellbore. Closing the nozzles while opening side ports on the body delivers fracturing fluid into the space. A pressurizing system can be included to pressurized the fluid so that pressure in the space overcomes the formation strength and fractures the formation adjacent the enclosed space. The packer can be released, drilling can resume, and fracturing can occur at a different depth in the wellbore.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: November 25, 2014
    Assignee: Saudi Arabian Oil Company
    Inventor: Shaohua Zhou
  • Publication number: 20140131115
    Abstract: An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a tungsten carbide powder, a shoulder powder, and a binder material, wherein at least one of the tungsten carbide powder or the shoulder powder is absent of any free tungsten. The blank, which optionally may be coated, is substantially cylindrically shaped and defines a channel extending from a top portion and through a bottom portion of the blank. The absence of free tungsten from at least one of the tungsten carbide powder or the shoulder powder reduces the reaction with iron from the blank, thereby allowing the control and reduction of intermetallic compounds thickness within the bondline.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventors: Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Olivier Ther, Alfazazi Dourfaye, Bruno Cuillier De Maindreville, Williams Gomez
  • Publication number: 20140090900
    Abstract: An apparatus that includes one or more flow channels and method for fabricating such flow channels. The apparatus includes a body and one or more blades extending from one end of the body. Each blade includes a leading section, a trailing section, a face section extending from one end of the leading section to an end of the trailing section, and at least one flow channel extending from the leading edge section to the trailing edge section.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventors: William W. King, Cary A. Maurstad
  • Publication number: 20140090901
    Abstract: An apparatus that includes one or more machined high-angle sockets and method for fabricating such sockets. The apparatus includes a body, one or more blades extending outwardly from the body, and one or more high-angle nozzles machined into a portion of the blade. The body includes a bit face at one end and a plenum formed therein communicably coupled to an opening formed at an opposing end. Each blade includes a leading section, a trailing section, a face section extending from one end of the leading section to an end of the trailing section, and an inner section extending from an opposing end of the leading section to an opposing end of the trailing section. Each nozzle includes a nozzle socket cavity and a second hole intersecting with the nozzle socket cavity and extending to the plenum, which collectively form a passage extending from the plenum to the bit face.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventors: William W. King, Steven W. Drews
  • Publication number: 20140090899
    Abstract: An apparatus that includes one or more flow channels and method for fabricating such flow channels. The apparatus includes a body, one or more blades from one end of the body, and a corresponding gauge section disposed adjacently and in alignment with a respective blade. Each gauge section includes a leading section, a trailing section, a face section extending from one end of the leading section to an end of the trailing section, and at least one flow channel extending from the leading edge section to at least one of the trailing edge section or the face section.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventor: William W. King
  • Publication number: 20140020957
    Abstract: A drill bit is disclosed, comprising: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending from the center towards the gage of the bit which has been designed to increase the velocity across the cutting elements.
    Type: Application
    Filed: August 5, 2013
    Publication date: January 23, 2014
    Applicant: Northbasin Energy Services Inc.
    Inventors: Geir Hareland, Jeff Janzen
  • Publication number: 20130341035
    Abstract: The present invention relates to apparatus and methods for remotely adjusting the drill bit hydraulic horse power per square inch (HSI). Varying the nozzle geometry remotely without the need to pull the drill string outside the hole has obvious advantage. Changing the nozzle glow geometry results in changing the nozzle HSI which is beneficial to optimize drilling different rock formations in different drilling environment. There are many concepts to vary the nozzle size while drilling. The drill bit nozzle geometry can be varied by causing a change of at least one physical property of the environment. The variable geometry nozzle is not limited to drill bit, it can be placed within the inner flow passage or between the inner flow passage and annular flow passage for controlling flow profile within a wellbore, a tubular string or a flow conduit.
    Type: Application
    Filed: May 17, 2013
    Publication date: December 26, 2013
    Applicant: MIT HOLDINGS LTD
    Inventors: Ahmed Tahoun, Raed I. Kafafy, Karam J. Jawamir, Mohammed A. Aldheeb, Abdul Mushawwir Khalil
  • Publication number: 20130327575
    Abstract: An earth removal member for drilling a wellbore with casing or liner includes a tubular body and a head. The head is fastened to or formed with an end of the body, has a face and a side, is made from a high strength material, and has a port formed through the face. The earth removal member further includes a blade. The blade is formed on the head, extends from the side and along the face, and is made from the high strength material. The earth removal member further includes cutters disposed along the blade; and a nozzle adapter. The nozzle adapter has a port formed therethrough, is longitudinally and rotationally coupled to the head, and is made from a drillable material. The earth removal member further includes a nozzle disposed in the adapter port and fastened to the nozzle adapter.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 12, 2013
    Applicant: WEATHERFORD/LAMB, INC.
    Inventors: Eric M. TWARDOWSKI, Albert C. ODELL, II, Guy F. FEASEY, Scott BEATTIE, Sharp Okorie UGWUOCHA
  • Patent number: 8550191
    Abstract: Provided is an excavation tool for efficiently taking waste rocks produced during excavation into the inner peripheral side of a casing pipe. An excavation tool (10) includes a casing shoe (11), a casing pipe (15), a rod (60), a device (40), and an excavation bit (20). The excavation bit (20) has a head portion (22) and a skirt portion (23). The head portion (22) is provided with: a face flute (27), which is open into the tip face of the head portion and extends radially outward; a connection flute (28), which is integrally connected to the outer peripheral end of the face flute (27) and extends toward the rear end side, and an intake hole (29), which is integrally connected with the discharge flute (46) of the device (40) and is open to the inner peripheral side of the skirt portion (23) from the connection flute (28).
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: October 8, 2013
    Assignee: Mitsubishi Materials Corporation
    Inventors: Yoneo Hiwasa, Masaya Hisada, Kazuyoshi Nakamura
  • Publication number: 20130248257
    Abstract: The invention pertains to a drilling fluid composition comprising:—at least one (per)fluoropolyether oil comprising recurring units of formula —CF(CF3)CF2O— said oil having a kinematic viscosity of 30 to 80 cSt measured according to ASTM D455 standard at 20° C. [oil (E)] and possessing a polydispersity index (PDI) of at least 1.15; and—at least one (per)fluoropolyether phosphate comprising at least one perfluoropolyoxyalkylenic chain and at least one phosphoric acid group, in its acid, amide, salt or ester form [phosphate (P)], to a method for its manufacture and to its use in a drilling rig equipment.
    Type: Application
    Filed: July 18, 2011
    Publication date: September 26, 2013
    Applicants: Solvay Specialty Polymers Italy, IFP Energies Nouvelles, Total S.A.
    Inventors: Mathieu Naegel, Michel Gregoire, David Pasquier, Isabelle Henaut, Sara Rovinetti, Vincent Pierre Meunier
  • Patent number: 8528669
    Abstract: An earth removal member for drilling a wellbore with casing or liner includes a tubular body and a head. The head is fastened to or formed with an end of the body, has a face and a side, is made from a high strength material, and has a port formed through the face. The earth removal member further includes a blade. The blade is formed on the head, extends from the side and along the face, and is made from the high strength material. The earth removal member further includes cutters disposed along the blade; and a nozzle adapter. The nozzle adapter has a port formed therethrough, is longitudinally and rotationally coupled to the head, and is made from a drillable material. The earth removal member further includes a nozzle disposed in the adapter port and fastened to the nozzle adapter.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: September 10, 2013
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Eric M. Twardowski, Albert C. Odell, II, Guy F. Feasey, Scott Beattie, Sharp Okorie Ugwuocha
  • Publication number: 20130228382
    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: Application
    Filed: February 22, 2013
    Publication date: September 5, 2013
    Applicant: National Oilwell Varco, L.P.
    Inventor: Richard J. SAUVAGEAU
  • Patent number: 8517122
    Abstract: A drill and a separator apparatus and a method of prolonging bearing life are described, the separator apparatus being suitable for separating an air/water mixture into discrete air and water streams during drilling of a blast hole. The separator apparatus includes a separator body which is adapted to be installed at a distal or lower region of a drill string and when installed at the distal or lower region forms one or more separation chambers or reservoirs, each separation chamber or reservoir comprising an inlet adapted to receive the air/water mixture, a first outlet in fluid communication with a drill bit for releasing air thereto and a second outlet in fluid communication with a wall of the blast hole and disposed in the distal or lower region of the drill string to release water separated from the air/water mixture in a region adjacent the drill bit.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: August 27, 2013
    Assignee: Cardinal Trading Company Pty Ltd.
    Inventor: Jacob Garth Lowry
  • Patent number: 8517124
    Abstract: A drill bit is disclosed, comprising: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending from the center towards the gage of the bit which has been designed to increase the velocity across the cutting elements.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: August 27, 2013
    Assignee: NorthBasin Energy Services Inc.
    Inventors: Geir Hareland, Jeff Janzen
  • Patent number: 8485283
    Abstract: A drill bit including a body section. The body section defines a body proximal end and a longitudinally opposed body distal end, and a body passageway extending longitudinally therethrough for receiving a fluid and conveying the fluid through the body section. An annular crown section extends longitudinally from the body section, the crown section defining a crown distal end and a longitudinally opposed crown proximal end, the crown section extending distally from the body section, the crown section defining a crown passageway extending longitudinally therethrough and in fluid communication with the body passageway. A flow directing component cooperates with the crown section to define a fluid flow channel extending through the crown section radially outwardly from the crown passageway, the fluid flow channel being self-modifiable upon the crown section reaching a predetermined wear threshold so as to modify a flow of the fluid through the fluid flow channel.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 16, 2013
    Assignee: Groupe Fordia Inc.
    Inventors: Daniel Baril, Pierre Auger
  • Patent number: 8479844
    Abstract: A distance holder for connection to, and rotation with, a drill string in an earth formation drilling device arranged to supply a jet of abrasive fluid for the purpose of providing a borehole by removing earth formation material through abrasion, comprises a chamber that is essentially rotational symmetric and which faces the earth formation material, and a jet nozzle arranged for discharging a jet of the abrasive fluid in the chamber. The chamber comprises a deflector positioned in the path of the fluid jet discharged from the jet nozzle.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: July 9, 2013
    Assignee: Shell Oil Company
    Inventor: Jan-Jette Blangé
  • Publication number: 20130168154
    Abstract: A horizontal directional drilling sonde housing has a cavity for receiving a sonde. Signal channels extend from the cavity to an exterior of the housing. A polymer lines at least part of the cavity and fills the signal channels. The drilling tool has a bit body and a drilling body. The two bodies have respective lateral surfaces which engage each other to prevent the transverse movement of the drilling body relative to the bit body during operations. The drill bit has a forward extending drill tooth, which drill tooth is removable from a bore. A spacer is located in the bore between the bottom end of the bore and the tooth. The drilling bit has buttons located on the side in a spiral configuration about a longitudinal axis of the bit.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 4, 2013
    Inventor: Charles T. Webb
  • Patent number: 8469120
    Abstract: Drill bits are provided. The drill bits are of the fixed-cutter, rotary-type. The drill bits have a plurality of blades having cutting elements disposed therealong. Junk slots are formed between the respective blades. A knife opening is formed in at least two of the junk slots. Preferably, the knife openings are disposed substantially transverse to a longitudinal axis of the drill bit. The drill bit also has one or more ribbon cutters. The ribbon cutters cyclically protrude through knife openings in the junk slots in order to facilitate the fragmentation of cuttings ribbons moving through the junk slots during a drilling operation.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: June 25, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Pavlin B. Entchev, John H. Jackson, John K. Montgomery
  • Publication number: 20130153304
    Abstract: A drill bit of the type used to drill a wellbore in the earth can comprise a bore formed in the drill bit, and a plug sealingly and reciprocably disposed in the bore, whereby the plug prevents fluid communication between sections of the bore in the drill bit. The plug can comprise a spherically-shaped member. The plug can comprise a floating plug sealingly and reciprocably disposed in the bore, whereby pressure in the different sections of the bore on respective opposite sides of the plug is substantially equalized.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 20, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Halliburton Energy Services, Inc.
  • Publication number: 20130133956
    Abstract: A drill bit assembly for boring including a drill bit and a bit sub. A front bit end has a plurality cutting elements at a forward face of the front bit end and a first fluid return passage extending through the drill bit to a rear bit end. The bit sub couples to the rear bit end. The bit sub includes a bore disposed at a front sub end sized and shaped to receive the rear bit end of the drill bit. A plurality of legs extends from a mid-sub region toward the front sub end between pairs of cutting elements. The plurality of legs has a fluid delivery passage disposed therein with the fluid delivery passage extending from the plurality of legs to a rear sub bit end. The bit sub has a second fluid return passage connecting the first fluid return passage to the rear sub bit end.
    Type: Application
    Filed: October 17, 2012
    Publication date: May 30, 2013
    Applicant: NEWTECH DRILLING PRODUCTS, LLC
    Inventor: Newtech Drilling Products, LLC
  • Patent number: 8439134
    Abstract: A rotating cone drill bit includes a plurality of mud nozzles extending from the bit body, which are thermally fitted by controlling the temperature differential depending on the corresponding materials, the amount of fit desired, and the diameters of the elements to be fitted and which provide substantially obstruction-free mud paths toward the wellbore bottom. The bit has a plurality of reduced diameter cutter assemblies, each having a journal projecting from a corresponding leg. The journal has at least two cylindrical bearing surfaces and an annular groove formed therebetween and a spindle. An annular retention segment is rotatably mounted in the groove. The retention segment has an outer radial surface engaging a portion of one of the bearing surfaces of the cone, and an energy beam welding area fusing substantially the entire engaging surfaces of the retention segment and the cone.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 14, 2013
    Inventor: Edward Vezirian
  • Publication number: 20130075166
    Abstract: A roof-bolt drill bit. The roof-bolt drill bit may include a bit body rotatable about a central axis and a cutting element coupled to the bit body. The bit body may comprise a forward end, a rearward end axially spaced away from the forward end, and an internal passage defined within the bit body, with the internal passage extending from a rearward opening defined in the rearward end of the bit body through at least a portion of the bit body. A fluid port is configured to direct fluid from the internal passage through a port opening in a direction that forms an angle with respect to a forward direction of the central axis.
    Type: Application
    Filed: November 15, 2012
    Publication date: March 28, 2013
    Applicant: Dover BMCS Acquisition Corporation
    Inventor: Dover BMCS Acquisition Corporation
  • Patent number: 8393417
    Abstract: Sleeves, stabilizers and other well tools may be formed with fluid flow paths or channels extending through one or more blades disposed on the exterior portions of such well tools. The blades and associated fluid flow paths extending therethrough may allow optimum fluid flow rates and volumes to enhance lifting of formation cuttings and downhole debris along with cleaning exterior portions of the well tool and an associated rotary drill bit. Location, configuration, orientation and/or dimensions associated with such blades and associated fluid flow paths or channels may also be modified to provide an enlarged pad or contact surface on exterior portions of one or more blades while maintaining desired fluid flow rates and volumes over exterior portions of the well tool. Such pads or contact surfaces may have optimum surface areas for contacting adjacent portions of a wellbore during directional drilling of the wellbore.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: March 12, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ronald G. Earles, Barry D. Calnan, Randy C. Ivey
  • Patent number: 8381844
    Abstract: Earth-boring drill bits include a bit body, an element having an attachment feature bonded to the bit body, and a shank assembly. Methods for assembling an earth-boring rotary drill bit include bonding a threaded element to the bit body of a drill bit and engaging the shank assembly to the threaded element. A nozzle assembly for an earth-boring rotary drill bit may include a cylindrical sleeve having a threaded surface and a threaded nozzle disposed at least partially in the cylindrical sleeve and engaged therewith. Methods of forming an earth-boring drill bit include providing a nozzle assembly including a tubular sleeve and nozzle at least partially within a nozzle port of a bit body.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: February 26, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Oliver Matthews, III, David A. Stockey, Redd H. Smith
  • Publication number: 20130032398
    Abstract: In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current, and a drillstring that transports a fluid flow from the bit to convey detached formation material out of the borehole. The use of reverse circulation may enhance the performance of the pulsed-electric drilling system.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Ronald J. DIRKSEN
  • Publication number: 20120298425
    Abstract: An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a powder and a binder material. The blank includes an internal blank component and a coating coupled around at least a portion of the surface of the internal blank component. The internal blank component includes a top portion and a bottom portion. The internal blank component is substantially cylindrically shaped and defines a channel extending through the top portion and the bottom portion. The coating is a metal in some exemplary embodiments. The coating reduces the migration of the binder material into the blank thereby allowing the control of intermetallic compounds thickness within the bondline.
    Type: Application
    Filed: May 21, 2012
    Publication date: November 29, 2012
    Applicant: Varel Europe S.A.S
    Inventors: Bruno Cuillier De Maindreville, Williams Gomez
  • Publication number: 20120285293
    Abstract: A composite sintered powder metal article including a first region including a cemented hard particle material such as, for example, cemented carbide. The article includes a second region including: a metallic material selected from a steel, nickel, a nickel alloy, titanium, a titanium alloy, molybdenum, a molybdenum alloy, cobalt, a cobalt alloy, tungsten, a tungsten alloy; and from 0 up to 30 percent by volume of hard particles. The first region is metallurgically bonded to the second region, and each of the first region and the second region has a thickness of greater than 100 microns. The second region comprises at least one mechanical attachment feature so that the composite sintered powder metal article can be attached to another article. The article comprises one of an earth boring article, a metalcutting tool, a metalforming tool, a woodworking tool, and a wear article.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Applicant: TDY INDUSTRIES, LLC
    Inventors: Prakash K. Mirchandani, Morris E. Chandler
  • Publication number: 20120285749
    Abstract: A drill bit 1 has a drill head 3 and a shank 4. The shank 4 has a body 20, an add-on part 40 and an internal channel 50. The drill head 3 is attached to the body 20. The add-on part 40 is attached to a lateral surface 21 of the body 20 and arranged completely within a cylindrical envelope 29 that circumscribes the body 20. The internal channel is configured within the add-on part and/or between the add-on part 40 and the lateral surface 21.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 15, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventors: Klaus-Peter BOHN, Stefan GRASBERGER, Werner KLEINE
  • Patent number: 8264532
    Abstract: An optical inspection instrument includes a housing configured to move along the interior of a pipe string in a wellbore. The pipe has a cutting structure at its bottom end. The instrument includes a probe extending from a bottom end of the housing. The probe has an output from a light source and a light input to a video camera. The probe has a diameter selected to enable extension through an opening in the cutting structure. A method for inspecting a wellbore includes moving an instrument through an interior of a pipe string in the wellbore. The pipe has a cutting tool at its lower end. At least part of the instrument is moved outside the bottom end of the pipe through a port in the cutting tool. Optically transparent fluid is moved into the wellbore proximate an end of the instrument outside the pipe string. Objects proximate the fluid are inspected.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: September 11, 2012
    Assignee: ThruBit B.V.
    Inventors: James G. Aivalis, Christopher Prusiecki
  • Patent number: 8256533
    Abstract: A distance holder for connection to, and rotation with, a drill string in an earth formation drilling device arranged to supply a jet of abrasive fluid for the purpose of providing a borehole by removing earth formation material through abrasion, comprises a housing with a chamber which is essentially rotational symmetric and which is to face the earth formation material, and a jet nozzle which arranged for discharging a jet of the abrasive fluid in the chamber, the housing comprising at least one slot for allowing the abrasive fluid to leave the chamber. The slot is continued over the housing outer surface so as to counteract rolling motions of the particles which are comprised in the abrasive fluid.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: September 4, 2012
    Assignee: Shell Oil Company
    Inventor: Jan-Jette Blangé
  • Patent number: 8240402
    Abstract: Earth-boring drill bits include a bit body including a blockage-resistant internal fluid passageway. The blockage-resistant internal fluid passageway includes at least one internal fluid passageway formed in the bit body and a cuttings filtering feature formed in the at least one internal fluid passageway configured to prevent at least some cuttings from flowing through the at least one internal fluid passageway. In one embodiment, the cuttings filtering feature includes at least one lateral member extending transversely across the at least one internal fluid passageway. In another embodiment, the cuttings filtering feature includes forming a central portion of the at least one internal fluid passageway with a width along a lateral axis thereof less than an average width of a fluid path extending through a nozzle disposed at least partially within the at least one internal fluid passageway. Methods of forming the blockage-resistant internal fluid passageway are also disclosed.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: David L. Rickabaugh, Rudolf Carl Pessier, Mark E. Anderson, William A. Moss, Redd H. Smith
  • Patent number: 8235145
    Abstract: The present invention recites a method, system and apparatus, wherein said method, system and apparatus comprises a gauge pad for a rotary component received within a borehole, the gauge pad comprising an exterior surface dimensioned for rotation in close proximity to the borehole, a pocket extending through the exterior surface, the pocket in fluid communication with a pressurized fluid source, and wherein the exterior surface is dimensioned such that when a pressurized fluid is discharged through the pocket, the velocity of the fluid through a gap between the exterior surface and borehole creates a pressure drop sufficient to pull the rotary component toward the gauge pad.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 7, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Kjell Haugvaldstad, Ashley Johnson, Geoffrey C. Downton, Walter David Aldred, Frank F. Espinosa, Benjamin P. Jeffryes, Riadh Boualleg, Michael P. Barrett
  • Publication number: 20120138298
    Abstract: The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 7, 2012
    Inventors: Richard L. Giroux, Gregory G. Galloway, David J. Brunnert, Patrick G. Maguire, Tuong Thanh Le, Albert C. Odell, II, David M. Haugen, Frederick T. Tilton, Brent J. Lirette, Mark Murray, Peter Barnes Moyes
  • Publication number: 20120103694
    Abstract: An earth removal member for drilling a wellbore with casing or liner includes a tubular body and a head. The head is fastened to or formed with an end of the body, has a face and a side, is made from a high strength material, and has a port formed through the face. The earth removal member further includes a blade. The blade is formed on the head, extends from the side and along the face, and is made from the high strength material. The earth removal member further includes cutters disposed along the blade; and a nozzle adapter. The nozzle adapter has a port formed therethrough, is longitudinally and rotationally coupled to the head, and is made from a drillable material. The earth removal member further includes a nozzle disposed in the adapter port and fastened to the nozzle adapter.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 3, 2012
    Inventors: Eric M. Twardowski, Albert C. Odell, II, Guy F. Feasey, Scott Beattie, Sharp Okorie Ugwuocha
  • Patent number: 8127868
    Abstract: Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 6, 2012
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Richard L. Giroux, Gregory G. Galloway, Tuong Thanh Le, Raymond H. Jackson, Gregory R. Nazzal, James C. Swarr, David J. Brunnert, William M. Beasley, Brent J. Lirette, Albert C. Odell, Jim Terry, Dave McKay, Samir Alkhatib, Mike Wardley
  • Patent number: 8113301
    Abstract: An underreamer for earth boring operations has a tubular body with a passage extending through it. Arms are pivotally mounted to the body and movable between retracted and extended positions. An actuator mandrel, located within the passage in the body, pushes the arms outward when drilling fluid is pumped downward in the drill string. Ports are located in the sidewall of the body and in the actuator mandrel. The ports align with each other when the mandrel moves to its downstream position. The ports divert a portion of the drilling fluid out to jet it across the cutting elements on the arms. The remaining portion of the drilling fluid passes downward to the drill bit and out nozzles of the drill bit.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: February 14, 2012
    Assignee: Tesco Corporation
    Inventor: Erik P. Eriksen
  • Patent number: 8100201
    Abstract: A rotary drill bit (10) is provided for drilling a hole in a subsurface formation. The bit body (12) includes a plurality of axially extending ribs (16a, b, c and d) and a flow channel between adjacent ribs. A plurality of cutting elements are fixedly mounting on a respective one of the plurality of ribs. A plurality of flow nozzles (20a, b, c and d) direct fluid to a respective one of the plurality of cutting elements to clean and cool the cutting elements.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 24, 2012
    Assignee: BlueFire Equipment Corporation
    Inventor: Anatoli Borissov
  • Patent number: 8091654
    Abstract: A drill bit for drilling through an earthen formation to form a borehole includes a bit body having a central axis, an internal plenum, and an underside. The underside includes an annular outer region. The bit body includes an outer receptacle extending from the plenum to the outer region. In addition, the drill bit comprises a first and a second cone cutter. Each cone cutter comprises an outer region distal the bit axis. Further the drill bit comprises an outer sleeve having an upstream end received by the outer sleeve receptacle and a through passage. The through passage includes an upstream section having an upstream axis and a downstream section having a downstream axis that is skewed at an angle ? relative to the upstream axis. A projection of the downstream axis passes between the outer regions of the first and second cone cutters.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: January 10, 2012
    Assignee: Smith International, Inc
    Inventors: Luca Tedeschi, James L. Larsen, Gary Portwood, Riccardo Gronchi
  • Patent number: 8079427
    Abstract: Methods of forming earth-boring tools include assembling a plurality of head sections about a longitudinal axis to form a bit body, rotatably mounting a cutter to a cutter bearing shaft of each head section, and forming at least one groove on an outer surface of a bit leg of at least one head section, causing the at least one groove to extend along a curved path from a leading side of the bit leg to a trailing side of the bit leg between an upper sidewall and a lower sidewall.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: December 20, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Floyd C. Felderhoff, Rudolf Carl Pessier, Yolanda V. Morse
  • Patent number: 8074749
    Abstract: Embodiments of the present invention generally relate to an earth removal member with features for facilitating drill-through. In one embodiment, an earth removal member for drilling a wellbore with casing or liner includes a tubular body and a head. The head is fastened to or formed with an end of the body, has a face and a side, is made from a high strength material, and has a port formed through the face. The earth removal member further includes a blade. The blade is formed on the head, extends from the side and along the face, and is made from the high strength material. The earth removal member further includes cutters disposed along the blade; and a nozzle adapter. The nozzle adapter has a port formed therethrough, is longitudinally and rotationally coupled to the head, and is made from a drillable material. The earth removal member further includes a nozzle disposed in the adapter port and fastened to the nozzle adapter.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: December 13, 2011
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Eric M. Twardowski, Albert C. Odell, II, Guy F. Feasey, Scott Beattie, Sharp Okorie Ugwuocha
  • Patent number: 8028765
    Abstract: A rotary drag bit for use in subterranean earth boring operations, the drag bit having blades, rows of cutters on the blades, and nozzles disposed within the rows. The nozzles are configured to discharge fluid during drilling.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: October 4, 2011
    Assignee: Saudi Arabian Oil Company
    Inventor: Gabriel Dario Carrillo Plazas
  • Patent number: 8020639
    Abstract: The blades of a PDC bit have a nozzle between them preferably oriented laterally across the plane of the cutters on the blade and more preferably in a trough disposed adjacent the row of cutters. The cutting is less likely to adhere to the bit surface because the trough abruptly spaces back the bit surface and the spray being oriented radially preferably into the trough gets between the bit surface and the cutting before it can adhere to the bit surface using the fluid energy to drive the cutting into the junk slot.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: September 20, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Michael R. Wells, Tim K. Marvel
  • Patent number: 8011457
    Abstract: A drill bit assembly comprises a bit body intermediate a shank and a working face. The shank is adapted for connection to a drill string. The drill string comprising a fluid passage at least partially disposed within the body. A hammer assembly is movably disposed within the fluid passage along it central axis, the hammer assembly comprises a proximal end stabilized by a centralized upper bearing and a distal end stabilized by centralized a lower bearing. The distal end protrudes out of the working face and the hammer assembly comprises a carrier between the upper and lower bearings. Wherein, under normal drilling operations the carrier is adapted to resist a fluid pressure within the fluid passageway such that the fluid pressure will further extend the distal end of the hammer assembly from the working face by pushing on the carrier.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: September 6, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, John Bailey, Scott Dahlgren
  • Patent number: 7954568
    Abstract: A steel body bit nozzle assembly comprising a bit body having a port therein with a sleeve disposed adjacent a nozzle in the port and an annular seal disposed between an outer wall, each of the sleeve and the nozzle and a wall of the port, each seal being received and compressed in an annular seal groove located between its respective component and the bit body. A nozzle pocket insert assembly and a method of manufacturing or retrofitting a steel body bit for use of the nozzle pocket insert assembly are also disclosed.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: June 7, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Juan Miguel Bilen
  • Publication number: 20110127087
    Abstract: A drill bit is disclosed, comprising: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending from the center towards the gage of the bit which has been designed to increase the velocity across the cutting elements.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 2, 2011
    Inventor: Geir Hareland