Noncutting Portion Forwardly Of Cutting Portion (e.g., Reamer) Patents (Class 175/406)
  • Patent number: 9410379
    Abstract: A tool for reaming a borehole includes a tubular body having a central axis, an uphole reamer section mounted to the body, and a downhole reamer section mounted to the body. Each reamer section includes a first blade extending radially from the body. Each blade has an uphole end, a downhole end opposite the uphole end, and a formation-facing surface. The formation facing surface of the first blade of the uphole reamer section is disposed at a radius R1 that increases moving from the uphole end to the downhole end. The formation facing surface of the first blade of the downhole reamer section is disposed at a radius R1? that decreases moving from the uphole end to the downhole end. The tool also includes a cutter element mounted to the formation facing surface of the first blade of each reamer section.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 9, 2016
    Assignee: NATIONAL OILWELL DHT, L.P.
    Inventor: Roger H. Silva
  • Publication number: 20150075870
    Abstract: Disclosed is a system and method employed in a horizontal directional drilling (“HDD”) process. An exemplary embodiment includes a drill bit with thirteen (13) or more splines for improved orientation of the drill bit relative to the orientation of a bent sub. Another exemplary embodiment includes a drill bit configured for receipt of a pulling device so that the drill bit may be used in a back reaming step to pull a product back through a pilot bore. Another exemplary embodiment includes a pulling device for mounting to a drill bit. The pulling device, in some embodiments, may include one or more pins for diverting and channeling air and/or fluid through the drill bit to lubricate a hammer assembly and/or the product being pulled as the drill string to which the drill bit is attached is retracted back through the pilot bore.
    Type: Application
    Filed: March 13, 2014
    Publication date: March 19, 2015
    Inventor: CARY COOPER
  • Patent number: 8978787
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf C. Pessier, Thorsten Schwefe
  • Patent number: 8973685
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 10, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf C. Pessier, Thorsten Schwefe
  • Patent number: 8960333
    Abstract: Expandable reamers are configured to operate in a first, retracted state in which a plurality of blades is in a retracted position when a sliding sleeve is in a first sleeve position and a seat is in a first seat position, to operate in a second, extended state in which the plurality of blades is movable to an extended position when the sliding sleeve is in at least a second sleeve position and the seat is in the first seat position, and to operate in a third, retracted state in which the plurality of blades is returned to the retracted position when the sliding sleeve is in the at least a second position and the seat is in a second seat position.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: February 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Steven R. Radford, Marcus Oesterberg, S. Richard Gentry
  • Publication number: 20150008041
    Abstract: A downhole tool may be used to enlarge and widen a wellbore. The downhole tool may include a reamer with a mandrel that includes a rib extending radially outward from a cylindrical body of the mandrel. The rib may define one or more grooves. A cutter block or other expandable member may be positioned adjacent the rib and may include one or more extensions that mate with the grooves. The rib and cutter block may be positioned within a slot of a housing. The housing may also include one or more grooves on a surface along the slot. The grooves along the slot and the grooves on rib may mate with extensions on opposing sides of the expandable member to define a path by which the expandable member moves between expanded and retracted positions.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventors: David R. Hall, Jonathan D. Marshall, Adam R. Aquino, Scott S. Dahlgren
  • Publication number: 20140374170
    Abstract: A wellbore underreamer has a tubular body, a central body cavity, and pivotally mounted blades in slots on the periphery of the tubular body. A translatable piston in the central body cavity is urged away from cam surfaces on the blades by a biasing spring. The piston has an orifice restricted fluid passage and translates in response to fluid pressure determined by the selected piston orifice and biasing spring. Fluid circulates through the piston fluid passage and fluid passages in the underreamer while piston movement is restrained by the spring. At a predetermined fluid pressure, the piston moves to engage the blade cam surfaces to pivotally extend the blades outward from the blade slots. The blades are held in the slots by a spring biased ball until they are extended by the piston.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Inventor: Toby Scott Baudoin
  • Publication number: 20140345952
    Abstract: The present invention provides a method and apparatus for increasing the drift diameter and improving the well path of the well bore, accomplished in one embodiment by cutting away material primarily forming surfaces nearer the center of the drift, thereby reducing applied power, applied torque and resulting drag compared to conventional reamers that cut into all surfaces of the well bore.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Inventors: Lot William Short, JR., Robert Bradley Beggs, Richard Earl Beggs
  • Patent number: 8887833
    Abstract: An adapter for connecting drilling components having an elongate tubular member with a non-circular exterior surface profile and a connector. A ground engaging member generally characterized as a reamer has a non-circular inner surface profile whereby the ground engaging member is slidably mounted on and engages the non-circular exterior surface of the tubular member. A flange assembly is connected to the ground engaging member and the tubular member to restrict axial movement of the ground engaging member relative to the tubular member.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: November 18, 2014
    Assignee: Earth Tool Company, LLC
    Inventor: Robert F. Crane
  • Publication number: 20140332270
    Abstract: In another embodiment, a method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly comprising a tubular string, an underreamer, and a drill bit; injecting drilling fluid through the tubular string and rotating the drill bit, wherein the underreamer remains locked in the retracted position; sending an instruction signal to the underreamer via modulation of a rotational speed of the drilling assembly or modulation of a drilling fluid pressure, thereby extending the underreamers; and reaming the wellbore using the extended underreamer.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 13, 2014
    Inventors: Albert C. ODELL, II, Marius RADUCANU
  • Publication number: 20140311802
    Abstract: The Smart Reamer® Tool, Apparatus or Method is used to underream an oil or natural gas well while interlinked calipers and calibration sensors simultaneously record data relating to the geometry of the drilling operation (well diameter, diameter of the underreamed zone) and drilling fluid properties (density). Further sensors provide data on the relative position of the cutting and stabilizing blocks. Other sensors measure vibration data. All the sensors are interlinked by means of microprocessors which compare and correlate said data to automatically verify and deliver a desired wellbore diameter without the need to unnecessarily stop drilling or trip out of the hole.
    Type: Application
    Filed: June 4, 2014
    Publication date: October 23, 2014
    Inventor: Wajid Rasheed
  • Publication number: 20140305708
    Abstract: A reamer for use in horizontal directional drilling back-reaming operations. The reamer comprises an elongate body having an intermediate section, a first end, and a second end. The circumference of the intermediate section is larger than the circumference of the first end and the second end. A pocket or a plurality of pockets are formed on the intermediate section. The pockets are configured such that a cutter or a plurality of cutters may be secured within the pockets via the use of fasteners. The cutters are replaceable with cutters of like size or cutters of different sizes and shapes.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicant: The Charles Machine Works, Inc.
    Inventor: Floyd R. Gunsaulis
  • Patent number: 8851205
    Abstract: The present invention provides a method and apparatus for increasing the drift diameter and improving the well path of the well bore, accomplished in one embodiment by cutting away material primarily forming surfaces nearer the center of the drift, thereby reducing applied power, applied torque and resulting drag compared to conventional reamers that cut into all surfaces of the well bore.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: October 7, 2014
    Assignee: Hard Rock Solutions, LLC
    Inventors: Lot William Short, Jr., Robert Bradley Beggs, Richard Earl Beggs
  • Patent number: 8844655
    Abstract: A joint connecting a pair of members rotatable about a common axis end to end includes a first member having a threaded end portion and a non-circular exterior surface rearwardly of the threaded end portion, a second member having a threaded socket wherein the threaded end portion of the second member can be engaged, and a non-circular exterior surface, a ground engagement sleeve having a non-circular profile on an inner surface thereof whereby the sleeve can be slidably mounted on the non-circular exterior profiles of the first and second members when such profiles are brought into alignment by rotation of one member relative to the other in a manner effective to pass torque from one member to the other by means of the non-circular profiles, a first pair of alignable holes in the sleeve and first member to receive a fastener to secure the sleeve to the first member and a hole in the second member penetrating the threaded socket and positioned to receive a fastener to secure the second member to a third membe
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: September 30, 2014
    Assignee: Earth Tool Company, LLC
    Inventor: Robert F. Crane
  • Publication number: 20140284109
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventor: James D. Isenhour
  • Publication number: 20140262508
    Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A mandrel is disposed within the bore of the body and has a port formed radially therethrough. A sleeve is disposed radially-outward from the mandrel. The sleeve blocks fluid flow through the port in the mandrel when the sleeve is in a first position, and the sleeve is axially-offset from the port in the mandrel when the sleeve is in a second position. A flow tube is coupled to the mandrel. The sleeve moves from the first position to the second position when fluid flows through the flow tube and through a channel disposed in the mandrel. A cutter block is movably coupled to the body and is responsive to fluid flow from the axial bore through the port in the mandrel.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Nathan Fuller, Craig Boswell
  • Publication number: 20140262533
    Abstract: A polycrystalline diamond (PCD) composite compact element comprising a PCD structure bonded to a cemented carbide substrate, in which at least a peripheral region of the substrate comprises cemented carbide material having a mean free path (MFP) characteristic of at least about 0.1 microns and at most about 0.7 microns; and an elastic limit of at least about 1.9 GPa.
    Type: Application
    Filed: January 13, 2014
    Publication date: September 18, 2014
    Inventors: Danny Eugene Scott, Jimmy Wayne Eason, David Alexander Curry, Igor Yuri Konyashin
  • Publication number: 20140262523
    Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer may include a body with first and second cutter blocks coupled to the body. The first cutter block may have a recess formed therein, and the second cutter block may be positioned in the recess. The first and second cutter blocks may move between retracted and expanded states. In the retracted state, the first and second cutter blocks may have an outer diameter less than or equal to an outer diameter of the body. In the expanded state, the first and second cutter blocks may have different outer diameters, with each being greater than the outer diameter of the body. A method may include running the underreamer into a wellbore, expanding the first and second cutter blocks, and moving the underreamer axially in the wellbore to increase the diameter of the wellbore.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: Jefferson Allen Davis
  • Patent number: 8813877
    Abstract: The present invention provides a method and apparatus for increasing the drift diameter and improving the well path of the well bore, accomplished in one embodiment by cutting away material primarily forming surfaces nearer the center of the drift, thereby reducing applied power, applied torque and resulting drag compared to conventional reamers that cut into all surfaces of the well bore.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: August 26, 2014
    Assignee: Hard Rock Solutions, LLC
    Inventors: Lot William Short, Jr., Robert Bradley Beggs, Richard Earl Beggs
  • Publication number: 20140202770
    Abstract: A reaming tool includes a body having a longitudinal axis and an upper end opposite a lower end and a blade located on said body, the blade including a reaming surface having one or more reaming inserts disposed on at least a portion thereof and a cutting surface having one or more cutters disposed on at least a portion thereof. One or more of said cutters are configured (a) so that an extended longitudinal axis of said cutter is positioned at an angle ? between 5 degrees and 85 degrees with respect to a plane perpendicular to the longitudinal axis of said body, or (b) on said cutting surface at a radial distance from said longitudinal axis less than said radial distances between said reaming inserts and said longitudinal axis.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: TERCEL IP LIMITED
    Inventors: Magdy M. ZAKI, Omar AHMED, Karim A. AGUIB, Ahmed Galal ADBEL-KADER
  • Publication number: 20140182940
    Abstract: An underreamer for increasing the diameter of a bore. The underreamer includes a substantially cylindrical body having an axial bore therein. A mandrel may extend axially through the axial bore. One or more cutter blocks are movably coupled to the body. A ratio of a height of the cutter block to a diameter of the body is between about 0.35:1 and about 0.50:1.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Manoj D Mahajan, Daniel W Brietzke, Nathan Fuller, James Barnhouse, Georges Ishak
  • Patent number: 8752649
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 17, 2014
    Assignee: Hard Rock Solutions, Inc.
    Inventor: James D. Isenhour
  • Publication number: 20140158430
    Abstract: The Smart Reamer® Tool, Apparatus or Method is used to underream an oil or natural gas well while interlinked calipers and calibration sensors simultaneously record data relating to the geometry of the drilling operation (well diameter, diameter of the underreamed zone) and drilling fluid properties (density). Further sensors provide data on the relative position of the cutting and stabilizing blocks. Other sensors measure vibration data. All the sensors are interlinked by means of microprocessors which compare and correlate said data to automatically verify and deliver a desired wellbore diameter without the need to unnecessarily stop drilling or trip out of the hole.
    Type: Application
    Filed: July 18, 2013
    Publication date: June 12, 2014
    Inventor: Wajid Rasheed
  • Publication number: 20140110171
    Abstract: Described herein is a reamer tool (100) having a body (105) with bays (115) in which cutter arms (110) are mounted for deployment between a stowed position and a deployed position. A deployment mechanism is provided for deploying the cutter arms from their stowed position to their deployed position that maintains each cutter arm in a position that is substantially parallel to a longitudinal axis of the body (105) whilst in its stowed position and in its deployed position as well as during its deployment from its stowed position to its deployed position. A control module (300) is also described for controlling the deployment of the cutter arms (110). The control module (300) comprises a motor (310), a gearing mechanism (315) and a moveable element (320) that closes a port (385) in a first position and opens the port (385) in a second position.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jean-Pierre Lassoie, John Ransford Hardin
  • Patent number: 8657038
    Abstract: An expandable reamer apparatus and stabilizer sub having at least one rib thereon attached thereto for drilling a subterranean formation.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: February 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Steven R. Radford, Mark R. Kizziar, Mark A. Jenkins
  • Patent number: 8640792
    Abstract: A bottom hole assembly to directionally drill a subterranean formation includes a drill bit, a stabilizer assembly located proximate to and behind the drill bit, a drilling assembly comprising a drive mechanism and a directional mechanism, and a flex housing integral with the drilling assembly.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 4, 2014
    Assignee: Smith International, Inc.
    Inventors: Lance D. Underwood, Charles H. Dewey
  • Patent number: 8607900
    Abstract: A downhole tool for bidirectional reaming of a wellbore with a tubular body with a central cutting section between a first end segment and a second end segment, wherein the central cutting section has a plurality of helical blades separated by flute sections, and wherein the helical blades each have at least two spiral angled sections connected together, polydiamond cutter nodes, high strength carbide cutting nodes, tungsten carbide hardfacing coating or combinations thereof on the helical blades, and wherein the outer diameter of the central cutting section is larger than the outer diameter of each of the end segments.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: December 17, 2013
    Assignee: LB Enterprises, LLC
    Inventor: Lee Morgan Smith
  • Patent number: 8606552
    Abstract: Methods and systems may be provided simulating forming a wide variety of directional wellbores including wellbores with variable tilt rates and/or relatively constant tilt rates. The methods and systems may also be used to simulate forming a wellbore in subterranean formations having a combination of soft, medium and hard formation materials, multiple layers of formation materials and relatively hard stringers disposed throughout one or more layers of formation material. Values of bit walk rate from such simulations may be used to design and/or select drilling equipment for use in forming a directional wellbore.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 10, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 8579050
    Abstract: A reamer bit for use in earth boring operations comprising a body, four cutter mounts, rolling cutters on each mount, and cutting elements disposed on each cutter arranged so adjacent cutting swaths formed by the bit are created by cutting elements on cones of oppositely disposed cutter mounts. The swaths are generally curvilinear, wherein the outermost swaths are formed by cutting element rows on the outer portion of the cutters. The reamer bit can further comprise a pilot bit.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: November 12, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Rudolf Carl Pessier, Scott Allan Young, Robert J. Buske, Mark Phillip Blackman, Gregory L. Ricks
  • Publication number: 20130284515
    Abstract: A method for coupling an earth pipe into the ground when utilizing an apparatus that has a drilling device including a casing part and a drilling unit inside thereof. The drilling unit includes a first drilling member for drilling a center hole and a second drilling member for reaming the center hole for the casing part. The casing part is arranged to be drawn into the hole by the first and/or second drilling member. After drilling a hole for the earth pipe and lifting up the first drilling member, a solidifying mass is led to the bottom of the hole to couple the earth pipe to the surrounding ground. The solidifying mass is brought in the casing part utilizing a flow-through assembly at a lower end of the casing part into a space between an outer surface of the casing part and the hole. Also an apparatus operating.
    Type: Application
    Filed: November 1, 2011
    Publication date: October 31, 2013
    Applicant: Oy Atlas Copco Rotex AB
    Inventor: Kai Gylling
  • Publication number: 20130256036
    Abstract: Cutting structures for use with downhole tools in subterranean boreholes include a blade, a plurality of primary cutting elements coupled to the blade, and at least one secondary element rotationally leading the plurality of primary cutting elements in a direction of intended rotation of the cutting structure. The at least one secondary element is coupled to the blade proximate a leading surface of the blade and comprises at least one of a rubbing surface and a cutting surface. An exposure of at least one primary cutting element of the plurality of primary cutting elements is greater than an exposure of the at least one secondary element. Downhole tools such as reamers include cutting structures. Methods of enlarging a subterranean borehole include reaming a borehole with cutting structures.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 3, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Nicholas J. Lyons
  • Publication number: 20130199858
    Abstract: Embodiments of keyseat wipers for use in drilling processes, as well as methods for making and using such keyseat wipers, are described herein. Embodiments of keyseat wipers can include changing cross-sections and a relief sections that permit cut materials to pass by the keyseat wipers, reducing the possibility of a drill string with keyseat wipers from binding in a curved hole when being retrieved.
    Type: Application
    Filed: November 21, 2012
    Publication date: August 8, 2013
    Inventor: Sheldon Hansen
  • Publication number: 20130195560
    Abstract: Methods are provided for the creation of large diameter piles in all types of soils (cohesive, cohesionless or rocky), particularly for the construction of bulkheads made of juxtaposed or secant piles, while maintaining the deviation from the vertical well below the limit ?2% required by European standard EN 1536. The invention reduces verticality errors, advantageously exploiting the accuracy provided by the directional drilling technology. Tools for implementing such methods are also provided.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 1, 2013
    Applicant: TREVI S.p.A.
    Inventor: TREVI S.p.A.
  • Publication number: 20130180783
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf C. Pessier, Thorsten Schwefe
  • Publication number: 20130180782
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rodolf C. Pessier, Thorsten Schwefe
  • Publication number: 20130153300
    Abstract: Expandable reamers are configured to operate in a first, retracted state in which a plurality of blades is in a retracted position when a sliding sleeve is in a first sleeve position and a seat is in a first seat position, to operate in a second, extended state in which the plurality of blades is movable to an extended position when the sliding sleeve is in at least a second sleeve position and the seat is in the first seat position, and to operate in a third, retracted state in which the plurality of blades is returned to the retracted position when the sliding sleeve is in the at least a second position and the seat is in a second seat position.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Steven R. Radford, Marcus Oesterberg, S. Richard Gentry
  • Publication number: 20130153306
    Abstract: A method of manufacturing a fixed cutter drill bit may include loading a first matrix material of controlled thickness to at least a portion of a mold cavity corresponding to a heel surface of at least one blade; loading a second matrix material into the remaining portions of the mold cavity; heating the mold contents to form a matrix body of the fixed cutter drill bit; and disposing at least one back reaming element in at least one back reaming cutter pocket.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 20, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: SMITH INTERNATIONAL, INC.
  • Patent number: 8464813
    Abstract: A raise boring reamer assembly includes a saddle, and a journal assembly carried by the saddle. The journal assembly includes nose and gage shanks, and a cutter is carried by the journal assembly. Nose and gage wiper rings are positioned proximate to the nose and gage shanks, respectively. The nose and gage wiper rings move debris in opposed directions in response to the rotation of the cutter.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 18, 2013
    Assignee: Atlas Copco Secoroc LLC
    Inventor: Andrew J. Osborne, Jr.
  • Patent number: 8459375
    Abstract: Expandable reamers for enlarging boreholes in subterranean formations include a tubular body and at least one member positioned in openings in the tubular body. The at least one member is configured to move between retracted and extended positions. A push sleeve is disposed at least partially within the tubular body and coupled to the at least one member. The push sleeve moves axially upward to move the at least one member to the extended position in response to a pressure of drilling fluid passing through a drilling fluid flow path in the tubular body. The push sleeve moves axially downward to move the at least one member to the retracted position in response to a pressure of drilling fluid upon a restrictive element disposed within the fluid passageway. The restrictive element disposed within the fluid passageway may be discarded from the fluid passageway by increasing the flow rate through the drilling fluid flow path.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 11, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Steven R. Radford
  • Patent number: 8448724
    Abstract: A hole opener having a hybrid reaming section for downhole earth boring operations may include a reamer body having an axis of rotation, an outer periphery, and upper and lower ends, a plurality of rolling cutters coupled to the outer periphery, the rolling cutters defining a rolling cutter cutting profile having a cutting diameter, a plurality of fixed blade cutters coupled to the outer periphery and defining a fixed blade cutter cutting profile having a cutting diameter, each fixed blade cutter being coupled between adjacent rolling cutters. At least one fixed blade cutter may be asymmetrically coupled about the axis. The cutting diameter of the fixed blade cutter cutting profile and the cutting diameter of the rolling cutter cutting profile may collectively define a gage diameter. At least a portion of the fixed blade cutter cutting profile may be deeper than the rolling cutter cutting profile.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: May 28, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Robert J. Buske, Rudolf C. Pessier
  • Publication number: 20130126244
    Abstract: Exemplary drill tools for placement in a drill string may include a body; a plurality of reamer cutters; and a plurality of ball and socket connectors configured to attach the plurality of reamer cutters to the body. Each of the plurality of reamer cutters may be replaceable by removing at least one of the plurality of ball and socket connectors from the reamer body. Each of the ball and socket connectors may be attached to the reamer body with bolts. Each of the ball and socket connectors may include titanium dioxide and/or titanium carbide coatings where the connectors interface with the reamer cutters.
    Type: Application
    Filed: December 3, 2012
    Publication date: May 23, 2013
    Inventor: Sheldon Hansen
  • Publication number: 20130092444
    Abstract: The present invention discloses a cutting tool integrated in a drillstring for enlarging a borehole, where the cutting tool at least comprises: one or more side mills (12, 13, 14) arranged along the axis of said drillstring in a reamer housing (11), where the side mills (12, 13,14) are adapted to be rotated relative to the tool housing (11) by individual driving means. The self driven rotational side mills may be dome shaped cones where expand radially out of the reamer housing (11), or may be a special non-circular dome shaped cones where rotates without expanding.
    Type: Application
    Filed: August 12, 2011
    Publication date: April 18, 2013
    Inventor: Mohammad Ali Taghipour Khadrbeik
  • Patent number: 8397838
    Abstract: A bore hole rotary reamer includes a body having cutters rotatably mounted by one or more respective spindles. A bearing region is formed on the spindle. At least one annular seal prevents ingress of contaminant to the bearing region. A circumferential void is formed adjacent the seal. At least one passageway extends in an axial direction of the spindle to the circumferential void and a piston movable in the passageway in response to supply of pressure to an outer side of the piston from the environment which surrounds the reamer. The piston transfers pressure to fluid in the cylindrical passage on an inner side of the piston to supply pressure to the circumferential void and thereby to the seal. The pressure is substantially determined by the pressure of the environment surrounding the reamer.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: March 19, 2013
    Assignee: Gearhart United Pty Ltd
    Inventor: Terry Michael McManus
  • Patent number: 8365843
    Abstract: In one aspect of the invention, a downhole tool string component has at least one end adapted to connect to an adjacent tool sting component and a bore adapted to accommodate a flow of drilling fluid. A turbine is disposed within the bore and an actuating assembly is arranged such that a clutch may mechanically connect and disconnect with the turbine.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 5, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall
  • Patent number: 8365841
    Abstract: An improved back reamer for horizontal directional drilling is provided with multiple components which can be assembled and disassembled before and after the back reaming process. The reamer includes a main shaft connectable to the drill string, a reamer head removably mounted on the main shaft, and a pull tab removably attached to the main shaft. Faceted couplings between the reamer shaft and head, and between the reamer head and pull tab preclude rotation between the components.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: February 5, 2013
    Inventor: Ted R. Dimitroff
  • Patent number: 8347989
    Abstract: A hole opener having a hybrid reaming section for reaming subterranean wellbores may include a tubular reamer body having a longitudinal axis and upper and lower ends, a rolling cutter mount coupled to the body, a rolling cutter rotatably coupled to the mount, and a fixed blade coupled to the body adjacent the mount. A method of forming a hybrid reamer tool for downhole use may include providing a tubular stem having couplers on the upper and lower ends, coupling a reamer body having an outer periphery to the stem between the stem upper and lower ends, coupling a rolling cutter mount to the outer periphery of the reamer body, the mount having a rolling cutter rotatably coupled thereto, and coupling a fixed blade to the outer periphery of the reamer body adjacent the rolling cutter mount.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: January 8, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Robert J. Buske, Rudolf C. Pessier
  • Patent number: 8302709
    Abstract: A back reamer includes a drive stem configured to support a main reamer body, the main reamer body including a plurality of receptacles, and a plurality of cutting leg assemblies in positive locking engagement with the plurality of receptacles to restrict radial movement of the cutting leg assemblies.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 6, 2012
    Assignee: Sandvik Intellectual Property AB
    Inventors: Amol Bhome, Robert H. Slaughter, Jr.
  • Patent number: 8297381
    Abstract: An expandable reamer apparatus and stabilizer sub having at least one rib thereon attached thereto for drilling a subterranean formation.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: October 30, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Steven R. Radford, Mark R. Kizziar, Mark A. Jenkins
  • Patent number: 8296115
    Abstract: Methods and systems may be provided simulating forming a wide variety of directional wellbores including wellbores with variable tilt rates and/or relatively constant tilt rates. The methods and systems may also be used to simulate forming a wellbore in subterranean formations having a combination of soft, medium and hard formation materials, multiple layers of formation materials and relatively hard stringers disposed throughout one or more layers of formation material. Values of bit walk rate from such simulations may be used to design and/or select drilling equipment for use in forming a directional wellbore.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: October 23, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 8281876
    Abstract: A reamer includes a mandrel defining a mandrel axis and arms extending radially from the mandrel. Each arm has a proximal end and a distal end. The reamer includes a cutting head disposed on the distal end of each arm and cutting teeth disposed on each cutting head. The cutting heads are arcuately spaced about the central mandrel to allow the movement of debris axially along the central mandrel and at least one of the arms defines a square cross-sectional shape.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: October 9, 2012
    Assignee: Southeast Directional Drilling, LLC
    Inventors: John M. Heieie, Steven L. Ugrich