Well Drill Patents (Class 76/108.4)
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Patent number: 11505998Abstract: An earth-boring tool may include at least one blade including a shoulder region and a face. A plurality of cutting elements may be arranged on the face of the blade and at least one cutting element may be positioned in the shoulder region such that a cutting face of the at least one cutting element is spaced a distance behind the face of the blade. A recessed portion of the blade may extend under at least one of the plurality of cutting elements arranged on the face of the blade and extending to the at least one cutting element positioned in the shoulder region.Type: GrantFiled: October 15, 2020Date of Patent: November 22, 2022Assignee: Baker Hughes Oilfield Operations LLCInventor: John Morin
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Patent number: 8973466Abstract: 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: GrantFiled: February 25, 2013Date of Patent: March 10, 2015Assignee: Baker Hughes IncorporatedInventors: Oliver Matthews, III, David A. Stockey, Redd H. Smith
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Publication number: 20150053050Abstract: A method for manufacturing a drilling tool includes machining a cutter pocket into a tool body. The cutter pocket has at least a front planar surface, a back planar surface, a first side surface between the front and back planar surfaces, and a second side surface opposite the first side surface and between the front and back planar surfaces. Once machined, cutting elements are placed in the cutter pocket and then brazed in the cutter pocket.Type: ApplicationFiled: November 10, 2014Publication date: February 26, 2015Applicant: SMITH INTERNATIONAL, INC.Inventors: Jimykumar Prajapati, Navish Makkar, Michael James Rodgers, Robert Patrick Moore, Dwayne P. Terracina
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Patent number: 8960338Abstract: A superabrasive compact (e.g., a polycrystalline diamond compact) including a substrate pre-coated with at least one braze layer and an in-process drill bit assembly including at least one of such superabrasive compacts are disclosed. Pre-coating the substrate with at least one braze layer and dimensioning the pre-coated substrate to fit within the tolerances of a conventionally-sized cutter recess of a drill bit body enables a drill bit manufacture to easily and rapidly braze the disclosed superabrasive compacts into the conventionally-sized cutter recess without substantially decreasing the superabrasive volume of the superabrasive compact.Type: GrantFiled: April 17, 2013Date of Patent: February 24, 2015Assignee: US Synthetic CorporationInventor: Robert K. Galloway
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Patent number: 8955209Abstract: A method for bonding together components, such as a tip and a shaft which include mutually facing carbide end surfaces. The tip includes circumferentially spaced flutes formed in its cylindrical outer periphery. The shaft has a cylindrical outer periphery and a plurality of coolant holes extending through the shaft. Bonding of the tip to the shaft is performed by inserting gauge wires into the coolant holes and associated flutes, and positioning brazing material between the first and second end surfaces. A water-soluble bond-blocking material is applied to the gauge wires for preventing brazing of the gauge wires to the brazing material. The brazing material is heated to braze the first and second end surfaces together while the flutes and their associated coolant holes are maintained in alignment by the gauge wires. Then, the gauge wires are removed, and residual bond-blocking material is dissolved in water.Type: GrantFiled: October 24, 2012Date of Patent: February 17, 2015Assignee: Diamond Innovations, Inc.Inventors: Dwight E. Dyer, Ray Phillip Conley
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Publication number: 20150034394Abstract: Earth-boring drill bits may include a bit body including blades extending radially over a face of the earth-boring drill bit and cutting elements attached to each blade. Only cutting elements including planar cutting faces may be attached to at least one of the blades. Only cutting elements including nonplanar cutting faces may be attached to at least another of the blades. Only cutting elements including planar cutting faces or only cutting elements including nonplanar cutting faces may be attached to each of the blades. Only cutting elements including nonplanar cutting faces may be attached to a number of the blades that may be unequal to a number of the blades to which only cutting elements comprising planar cutting faces may be attached.Type: ApplicationFiled: October 3, 2014Publication date: February 5, 2015Inventors: David Gavia, Nicholas J. Lyons, Juan Miguel Bilen, Danny E. Scott, Rudolf Carl Pessier
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Publication number: 20140326515Abstract: A drill bit has a bit body, a plurality of blades extending radially from the bit body, at least one rolling cutter pocket disposed on the plurality of blades, and at least one rolling cutter, wherein each rolling cutter is disposed in one of the rolling cutter pockets, and wherein a side surface of the rolling cutter pocket and an outer circumferential surface of the rolling cutter have at least one mating lip and channel formed therein. Further, the rolling cutter may include a cavity extending at least partially along a rotational axis through the rolling cutter, from a bottom surface of the rolling cutter, and a retention pin disposed within the cavity.Type: ApplicationFiled: December 4, 2012Publication date: November 6, 2014Applicant: Smith International, Inc.Inventors: Jibin Shi, Youhe Zhang
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Publication number: 20140311801Abstract: In one aspect, a drill bit is disclosed that in one embodiment includes a bit body and a pad that extends from a retracted position to an extended position from a bit surface at a first rate and retracts from the extended position to a retracted position at a second rate that is less than the first rate.Type: ApplicationFiled: April 17, 2013Publication date: October 23, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Jayesh R. Jain, Juan Miguel Bilen
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Publication number: 20140291033Abstract: A downhole tool and method for manufacturing such downhole tool. The downhole tool includes a bit body having a blank and a matrix bonded to and surrounding the blank, a shank having a threaded connection at one end, and a butt joint formed within a gap formed between the blank and the shank and coupling the blank to the shank. The blank includes a first planar surface while the shank includes a second planar surface opposite the one end. The butt joint is formed between the first and second planar surfaces when positioned adjacent to one another, wherein the first planar surface is positioned external to the matrix.Type: ApplicationFiled: March 19, 2014Publication date: October 2, 2014Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: Marvin Windsor Amundsen, Charles Daniel Johnson
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Publication number: 20140262511Abstract: In one aspect, a drill bit is disclosed that in one embodiment includes a plurality of elements that extend and retract from a surface of the drill bit, wherein the plurality of such elements are in fluid communication with each other to compensate for differing forces applied to such elements during drilling operations. In another aspect, a method of drilling a wellbore is provided that in one embodiment includes: conveying a drill string having a drill bit at an end thereof, wherein the drill bit includes a plurality of elements that extend and retract from a surface of the drill bit, wherein the plurality of such elements are in fluid communication with each other to compensate for differing forces applied to such elements during drilling operations; and drilling the wellbore using the drill string.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: BAKER HUGHES INCORPORATEDInventor: Juan Miguel Bilen
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Patent number: 8794356Abstract: Earth-boring tools include a body, one or more blades projecting outwardly from the body, and cutting elements carried by the blade. The cutting elements include at least one shearing cutting element and at least one gouging cutting element. Methods of forming an earth-boring tool include mounting a shearing cutting element comprising an at least substantially planar cutting face to a body of an earth-boring tool, and mounting a gouging cutting element comprising a non-planar cutting face to the body of the earth-boring tool. The gouging cutting element may be positioned on the body of the earth-boring tool such that the gouging cutting element will gouge formation material within a kerf cut in the formation material by the shearing cutting element, or between kerfs cut in the formation material by a plurality of shearing cutting elements.Type: GrantFiled: February 7, 2011Date of Patent: August 5, 2014Assignee: Baker Hughes IncorporatedInventors: Nicholas J. Lyons, Rudolf Carl Pessier, Danny E. Scott, David Gavia, Juan Miguel Bilen, Anthony A. DiGiovanni
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Patent number: 8731717Abstract: Methods include one or more of robotically positioning a cutting element on an earth-boring tool, using a power-driven device to move a cutting element on an earth-boring tool, and robotically applying a bonding material for attaching a cutting element to an earth-boring tool. Robotic systems are used to robotically position a cutting element on an earth-boring tool. Systems for orienting a cutting element relative to a tool body include a power-driven device for moving a cutting element on or adjacent the tool body. Systems for positioning and orienting a cutting element on an earth-boring tool include such a power-driven device and a robot for carrying a cutting element. Systems for attaching a cutting element to an earth-boring tool include a robot carrying a torch for heating at least one of a cutting element, a tool body, and a bonding material.Type: GrantFiled: January 15, 2013Date of Patent: May 20, 2014Assignee: Baker Hughes IncorporatedInventors: David Keith Luce, Sean W. Wirth, Alan J. Massey, Crystal A. Parrot
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Publication number: 20140027176Abstract: In one aspect, a drill bit is disclosed that in one embodiment 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, wherein 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. In another aspect, a method of drilling a wellbore is provided that in one embodiment includes: conveying a drill string having a drill bit at an end thereof, wherein 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, wherein the force application device includes a screw driven by an electric motor that moves a drive unit to extend the pad from the drill bit face; and rotating the drill bit to drill the wellbore.Type: ApplicationFiled: July 30, 2012Publication date: January 30, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Thorsten Schwefe, Dan Raz, Gregory Rinberg
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Publication number: 20140027177Abstract: In one aspect, a drill bit is disclosed that in one embodiment 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, wherein the force application device includes a force action member that includes a lever action device configured to extend and retract the pad from the drill bit surface. In another aspect, a method of drilling a wellbore is provided that in one embodiment includes: conveying a drill string having a drill bit at an end thereof, wherein the drill bit includes a pad configured to extend and retract from a surface of the drill bit and a force application device that includes a lever action device configured to extend and retract the pad from the surface of the drill bit; and rotating the drill bit to drill the wellbore.Type: ApplicationFiled: July 30, 2012Publication date: January 30, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Thorsten Schwefe, Dan Raz, Gregory Rinberg
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Patent number: 8616089Abstract: A method of making an earth-boring rotary drill bit including a bit body configured to carry one or more cutters for engaging a subterranean earth formation. The method includes providing a plurality of hard particles in a mold to define a particle precursor of the bit body. The method also includes infiltrating the particle precursor of the bit body with a molten matrix material comprising a shape memory alloy forming a hard particle-molten matrix material mixture, wherein the hard particles are randomly dispersed within the molten matrix material. The method further includes cooling the molten matrix material to solidify a matrix material and form the bit body comprising a particle-matrix composite material having the plurality of hard particles randomly dispersed throughout the matrix material.Type: GrantFiled: April 11, 2011Date of Patent: December 31, 2013Assignee: Baker Hughes IncorporatedInventors: Heeman Choe, John Stevens, Eric Sullivan
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Publication number: 20130306380Abstract: An earth-boring tool includes a tool body of a fixed-blade reaming apparatus configured to be coupled within the drilling assembly. The tool body has a longitudinal axis and at least one reamer blade configured to be outwardly extendable for use in an expandable reamer and attachable on a fixed-blade reamer. The at least one reamer blade is attached to the tool body in an immovable manner relative to the tool body during use of the earth-boring tool in the formation of a subterranean wellbore.Type: ApplicationFiled: March 15, 2013Publication date: November 21, 2013Inventors: Marcus Oesterberg, James D. Enterline
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Publication number: 20130292188Abstract: An earth-boring tool having at least one cutting element with a multi-friction cutting face provides for the steering of formation cuttings as the cuttings slide across the cutting face. The multi-friction cutting element includes a diamond table bonded to a substrate of superabrasive material. The diamond table has a cutting face formed thereon with a cutting edge extending along a periphery of the cutting face. The cutting face has a first area having an average surface finish roughness less than an average surface finish roughness of a second area of the cutting face, the two areas separated by a boundary having a proximal end proximate the tool crown and a distal end remote from the tool crown.Type: ApplicationFiled: May 1, 2012Publication date: November 7, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Juan Miguel Bilen, Anthony A. DiGiovanni, Chih C. Lin, Suresh G. Patel, Rudolf Carl Pessier, Danny E. Scott, Michael L. Doster
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Publication number: 20130256034Abstract: Expandable reamers for enlarging a borehole in a subterranean formation include a tubular body, at least one curved blade track carried by the tubular body, and at least one blade engaged with the at least one blade track and configured to slide along the curved blade track along a curved path between a first retracted blade position and a second expanded blade position. To form such an expandable reamer, a tubular body having at least one curved blade track carried by the tubular body may be formed, and at least one blade may be engaged with the blade track. The blade and blade track may be configured such that the blade slides along the blade track along a curved path between a retracted position and an expanded position. Such expandable reamers may be used to enlarge boreholes in subterranean formations.Type: ApplicationFiled: March 5, 2013Publication date: October 3, 2013Applicant: Baker Hughes IncorporatedInventor: Carl E. Poteet, III
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Patent number: 8534392Abstract: A cutting/milling tool includes a tool body, a cutting end of the tool body, a first plurality of cutting elements having a substantially identical shape disposed at the cutting end of the tool body, and a second plurality of cutting elements having a different shape than the first plurality of cutting elements. The second plurality of cutting elements are substantially identical in shape to each other, and the second plurality of cutting elements are interspersed with the first plurality of cutting elements at the cutting end of the tool body. Also included is a method for making a cutting/milling tool.Type: GrantFiled: February 22, 2010Date of Patent: September 17, 2013Assignee: Baker Hughes IncorporatedInventors: Gerald D. Lynde, James McNicol
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Patent number: 8522646Abstract: A method for forming a borehole enlargement tool that includes providing a steel body structure, forming at least one rib structure from a matrix material and abrasive particles, affixing the at least one rib structure to the body structure, and affixing the steel body structure to an elongated tubular body is disclosed.Type: GrantFiled: April 1, 2011Date of Patent: September 3, 2013Assignee: Smith International, Inc.Inventors: Tommy Laird, Navish Makkar
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Publication number: 20130153305Abstract: A drill bit that provides enhanced stability and a method for manufacturing such bit. In a preferred embodiment, the hybrid drill bit includes a single short driven blade in the shoulder region of the bit having each of its primary cutters plural set, sharing a common radial/elevational position with a primary cutter in an adjacent blade. All other primary cutters of the drill bit are single set at unique radial/elevational positions. The trailing plural-set cutters do less work than the other cutters and disrupt resonance and the feedback mechanism that leads to vibration, instability and whirling. In alternate embodiments, multiple blade pairs or groups may have primary cutters in the shoulder region that are plural set, sharing common radial/elevational positions with other primary cutters.Type: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Inventor: Benjamin CHREST
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Publication number: 20130140094Abstract: A drill bit has a bit body, a plurality of blades extending radially from the bit body, wherein each blade comprises a leading face and a trailing face, a plurality of cutter pockets disposed on the plurality of blades, at least one rolling cutter, wherein each rolling cutter is disposed in one of the cutter pockets, and wherein each rolling cutter comprises a cutting face, a cutting edge, an outer circumferential surface, and a back face. A back retainer is disposed adjacent to the back face, wherein the back retainer protrudes partially into the rolling cutter along a rotational axis of the rolling cutter, and a front retainer is disposed adjacent to the at least one rolling cutter on the leading face of the blade. Each front retainer has a retention end, wherein the retention end is positioned adjacent to a portion of the cutting face of each rolling cutter, and an attachment end, wherein the attachment end is attached to a portion of the blade.Type: ApplicationFiled: December 5, 2012Publication date: June 6, 2013Applicant: SMITH INTERNATIONAL, INC.Inventor: Smith International, INC.
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Patent number: 8439137Abstract: A superabrasive compact (e.g., a polycrystalline diamond compact) is disclosed, which includes a substrate pre-coated with at least one braze layer and an in-process drill bit assembly including at least one of such superabrasive compacts. Pre-coating the substrate with at least one braze layer and dimensioning the pre-coated substrate to fit within the tolerances of a conventionally-sized cutter recess of a drill bit body enables a drill bit manufacture to easily and rapidly braze the disclosed superabrasive compacts into the conventionally-sized cutter recess without substantially decreasing the superabrasive volume of the superabrasive compact.Type: GrantFiled: January 15, 2010Date of Patent: May 14, 2013Assignee: US Synthetic CorporationInventor: Robert K. Galloway
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Patent number: 8439136Abstract: Embodiments of the present invention include a drill bit comprised of a plurality of blades. A first plurality of the blades has cutting elements positioned substantially within the cone section of the drill bit. A second plurality of blades has cutting elements positioned substantially within the blade flank section and the blade shoulder section. Another embodiment of the first plurality of blades in which the blades end or truncate at a radial distance substantially less than the radial distance of the blade shoulder section from the center of the drill bit.Type: GrantFiled: April 2, 2010Date of Patent: May 14, 2013Assignee: Atlas Copco Secoroc LLCInventors: Mark L. Jones, Kenneth M. Curry
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Publication number: 20130088364Abstract: During drilling of an earth borehole, resistance measurements may be made at the drill bit through use of a bottom hole assembly that includes a drill bit having a sensor, such as an electrode, located generally at an exterior surface of the drill bit. The current will be induced in the formation from multiple transmitters, at least one of which will be supported on, or very close to the drill bit. Connection mechanisms are described that enable the releasable engagement of electrical conductors to circuitry within the drill bits. The obtained resistivity measurements at the drill bit can be used for many purposes, including formation imaging and geosteering of the drilling operation.Type: ApplicationFiled: January 22, 2010Publication date: April 11, 2013Applicant: Halliburton Energy Services, Inc.Inventors: Michael S. Bittar, Gary Weaver, Vadim Minosvan
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Publication number: 20130081881Abstract: A rolling cone cutter for a roller cone earth-boring bit has a generally conical body. The generally conical body defines a plurality of lands and grooves. Each land supports a circumferential row of primary cutter elements. At least one of the plurality of lands has a land sidewall. The land sidewall defines a boundary of an adjacent groove. A plurality of protective inserts are disposed within the land sidewall. The protective inserts may reduce erosion of the land sidewall. One or more protective inserts may be disposed between a pair of primary cutters.Type: ApplicationFiled: August 17, 2012Publication date: April 4, 2013Applicant: Varel International, Ind., L.P.Inventors: Amnach Kongamnach, Inpeng Bouaphanh
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Patent number: 8387724Abstract: A rotary drill bit having one or more fluid nozzles is provided. Each nozzle may include interior surfaces designed to optimize hydraulic performance and efficiency of fluid flowing through the nozzle. The interior surfaces cooperate with each other to minimize turbulent fluid flow through the respective nozzle. Each nozzle may also include a discharge port or outlet with at least one Coanda surface operable to direct fluid flow in a direction which optimizes efficiency of transferring fluid energy to adjacent portions of a wellbore. The orientation of fluid flow from each nozzle may be directed to optimize cleaning of associated cutting structures and/or to minimize or prevent balling of formation cuttings.Type: GrantFiled: October 31, 2011Date of Patent: March 5, 2013Assignees: Halliburton Energy Services, Inc., University of CincinnatiInventors: Ephraim J. Gutmark, Tuck Leong Ho
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Publication number: 20130036872Abstract: A modular fixed cutter earth-boring bit body includes a blade support piece and at least one blade piece fastened to the blade support piece. A modular fixed cutter earth-boring bit and methods of making modular fixed cutter earth-boring bit bodies and bits also are disclosed.Type: ApplicationFiled: October 16, 2012Publication date: February 14, 2013Applicant: TDY INDUSTRIES, LLCInventor: TDY Industries, LLC
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Patent number: 8360176Abstract: A method for a down hole cutting tool is disclosed, wherein the cutting tool includes a cutting element support structure having at least one cutter pocket to support a cutting element comprising a substrate and an ultrahard layer. The method includes inserting a base portion of the cutting element into the cutter pocket; locating a first braze alloy such that when heated the first braze alloy melts and fills a space in the cutter pocket between the cutting element and the cutting element support structure adjacent the ultrahard layer; locating a second braze alloy such that when heated the second braze alloy melts and fills a space in the cutter pocket between the cutting element and the cutting element support structure non-adjacent the ultrahard layer; and heating the first and second braze alloy such that they melt.Type: GrantFiled: January 29, 2010Date of Patent: January 29, 2013Assignee: Smith International, Inc.Inventors: Youhe Zhang, Yuelin Shen, Hong Deng
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Patent number: 8355815Abstract: Methods include one or more of robotically positioning a cutting element on an earth-boring tool, using a power-driven device to move a cutting element on an earth-boring tool, and robotically applying a bonding material for attaching a cutting element to an earth-boring tool. Robotic systems are used to robotically position a cutting element on an earth-boring tool. Systems for orienting a cutting element relative to a tool body include a power-driven device for moving a cutting element on or adjacent the tool body. Systems for positioning and orienting a cutting element on an earth-boring tool include such a power-driven device and a robot for carrying a cutting element. Systems for attaching a cutting element to an earth-boring tool include a robot carrying a torch for heating at least one of a cutting element, a tool body, and a bonding material.Type: GrantFiled: February 12, 2009Date of Patent: January 15, 2013Assignee: Baker Hughes IncorporatedInventors: David Keith Luce, Sean W. Wirth, Alan J. Massey, Crystal A. Parrott
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Publication number: 20130008724Abstract: A method of making a drill bit for drilling subterranean formations includes forming a first blade having a shape and configuration defined by one or more first parameters and forming a second blade having a shape and configuration defined by one or more second parameters. One of the first parameters is different than one of the second parameters.Type: ApplicationFiled: June 14, 2012Publication date: January 10, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Lance A. Endres, Gregory Carlton Prevost, Tyler Rhes Reynolds
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Publication number: 20120279785Abstract: Earth-boring drill bits comprise a bit body having a plurality of radially extending blades and a plurality of cutting elements attached to the plurality of radially extending blades. Only gouging cutting elements are attached to at least one blade of the plurality of radially extending blades. Only shearing cutting elements are attached to at least another blade of the plurality of radially extending blades. Only shearing cutting elements are attached to a number of blades of the plurality of radially extending blades that is different from a number of blades of the plurality of radially extending blades to which only gouging cutting elements are attached. Methods of forming an earth-boring drill bit comprise forming a bit body including a plurality of radially extending blades. Only shearing cutting elements are attached to a number of blades different from a number of blades to which only gouging cutting elements are attached.Type: ApplicationFiled: May 5, 2011Publication date: November 8, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: David Gavia, Nicholas J. Lyons, Juan Miguel Bilen, Danny E. Scott, Rudolf Carl Pessier
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Patent number: 8261632Abstract: Methods of forming bit bodies for earth-boring bits include assembling and sintering infiltrated green components, infiltrated brown components, or infiltrated fully sintered components. Other methods include isostatically pressing a powder to form a green body substantially composed of a particle-matrix composite material, and sintering or hot isostatic pressing the green body or brown body to provide a bit body having a desired final density. Methods of forming earth-boring bits include providing a bit body substantially formed of a particle-matrix composite material and attaching a shank to the body. The body is provided by pressing a powder to form a green body and sintering the green body.Type: GrantFiled: July 9, 2008Date of Patent: September 11, 2012Assignee: Baker Hughes IncorporatedInventor: John H. Stevens
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Publication number: 20120205162Abstract: Downhole tools are provided with a topographical pattern, and anti-balling material is provided over the topographical pattern. The topographical pattern may be defined by at least one of a plurality of recesses extending into a surface of a body of the tool and a plurality of protrusions protruding from the surface. Downhole tools include an insert disposed within a recess in a body, and the insert comprises an anti-balling material having a composition selected to reduce accumulation of formation cuttings on the tools when the tools are used to form or service a wellbore. Downhole tools include anti-balling material disposed over a porous mass provided over the surfaces of the tools. Methods of forming downhole tools include providing anti-balling material over features on and/or in a surface of a body of a tool. Methods of repairing downhole tools include removing an insert therefrom and disposing a replacement insert therein.Type: ApplicationFiled: April 24, 2012Publication date: August 16, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Suresh G. Patel, Chaitanya K. Vempati, Steven R. Radford, Timothy K. Marvel, Bruce Stauffer, George I. Butler
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Patent number: 8172914Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder.Type: GrantFiled: August 15, 2008Date of Patent: May 8, 2012Assignees: Baker Hughes Incorporated, TDY Industries, Inc.Inventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins
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Publication number: 20120103690Abstract: A drill bit made according to one embodiment includes a first member including one of a magnet and a coil, and a second member that moves relative to the first member, the second member including the other of the magnet and the coil, wherein the relative motion causes the generation of an electrical charge in the coil.Type: ApplicationFiled: October 27, 2010Publication date: May 3, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Suresh G. Patel, Clifton N. B. Triplett
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Patent number: 8147572Abstract: Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and a plurality of interstitial regions disposed among the crystals. A metallic substrate is attached to the diamond body. A working surface is positioned along an outside portion of the diamond body, and the diamond body comprises a first region that is substantially free of a catalyst material, and a second region that includes the catalyst material. The diamond body first region extends from the working surface to depth of at least about 0.02 mm to a depth of less than about 0.09 mm. The diamond body includes diamond crystals having an average diamond grain size of greater than about 0.02 mm, and comprises at least 85 percent by volume diamond based on the total volume of the diamond body.Type: GrantFiled: July 11, 2007Date of Patent: April 3, 2012Assignee: Smith International, Inc.Inventors: Ronald K. Eyre, Anthony Griffo, Thomas W. Oldham
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Publication number: 20120055713Abstract: A drill bit according to one embodiment includes a center member configured to rotate at a first speed and an outer member disposed outside the center member, wherein the outer member is configured to rotate at a second speed. The drill bit also includes a first cutter disposed on the center member and a second cutter disposed on the outer member, wherein the first speed and second speeds are configured to control a resultant side force of the drill bit.Type: ApplicationFiled: August 31, 2011Publication date: March 8, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Wolfgang E. Herberg, Matthias Meister
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Patent number: 8127869Abstract: Earth-boring tools comprise a body having a face at a leading end. A plurality of cutting elements are disposed over the face and configured as a plurality of kerfing pairs comprising two or more cutting elements disposed at substantially the same radial position relative to a bit axis, wherein each of the at least two cutting elements follows substantially the same cutting path when the bit is rotated about its axis. Earth-boring tools are further configured so that a summation of a lateral force generated during drilling by each cutting element of the plurality of cutting elements is directed toward a side of the body.Type: GrantFiled: September 28, 2010Date of Patent: March 6, 2012Assignee: Baker Hughes IncorporatedInventors: Chaitanya K. Vempati, Jack T. Oldham, Suresh G. Patel, Danielle M. Fuselier
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Publication number: 20120043137Abstract: A rotary drill bit having one or more fluid nozzles is provided. Each nozzle may include interior surfaces designed to optimize hydraulic performance and efficiency of fluid flowing through the nozzle. The interior surfaces cooperate with each other to minimize turbulent fluid flow through the respective nozzle. Each nozzle may also include a discharge port or outlet with at least one Coanda surface operable to direct fluid flow in a direction which optimizes efficiency of transferring fluid energy to adjacent portions of a wellbore. The orientation of fluid flow from each nozzle may be directed to optimize cleaning of associated cutting structures and/or to minimize or prevent balling of formation cuttings.Type: ApplicationFiled: October 31, 2011Publication date: February 23, 2012Inventors: Ephraim J. Gutmark, Tuck Leong Ho
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Patent number: 8074869Abstract: A reactive foil is used to assemble the components of rock bit cutters and to affix cutting elements to rock bit bodies. A small pulse of localized energy ignites the foil in a fraction of a second to deliver the necessary amount of heat energy to flow solder or braze and form a strong, true metallic joint. The reaction in the foil may be activated using optical, electrical, or thermal sources.Type: GrantFiled: November 14, 2007Date of Patent: December 13, 2011Assignee: Baker Hughes IncorporatedInventors: Nicholas J. Lyons, Nathan David Ames
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Publication number: 20110240376Abstract: Various downhole drilling tools designed and manufactured at least in part on evaluating respective forces acting on respective groups and sets of cutting elements during simulated engagement with the downhole end of a wellbore and drilling from a first downhole formation into a second downhole formation. Simulating forces acting on each cutting element as the cutting element contacts a downhole formation may be used to force balance downhole drilling tools during transition drilling or non-uniform downhole drilling conditions. Multilevel force balanced downhole drilling tools may be designed using five respective simulations, cutter group level, neighbor cutter group level, cutter set level, group of N (N=3 or N=4) consecutive cutters level and all cutters level. Various cutter layout procedures and algorithms may also be used to design multilevel force balanced downhole drilling tools which may drill faster with higher lateral stability, especially during downhole transiting drilling conditions.Type: ApplicationFiled: December 9, 2009Publication date: October 6, 2011Inventor: Shilin Chen
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Publication number: 20110203856Abstract: A cutting/milling tool includes a tool body; a cutting end of the tool body; a first plurality of cutting elements having a substantially identical shape disposed at the cutting end of the tool body; and a second plurality of cutting elements having a different shape than the first plurality of cutting elements, the second plurality of cutting elements being substantially identical in shape to each other, the second plurality of cutting elements being interspersed with the first plurality of cutting elements at the cutting end of the tool body.Type: ApplicationFiled: February 22, 2010Publication date: August 25, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Gerald D. Lynde, James McNicol
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Publication number: 20110198128Abstract: A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components, as well as cement. Methods of forming earth-boring tools include disposing at least one abrasive cutting structure or element on the earth-boring tool. Methods of drilling with earth-boring tools including drilling with at least one abrasive cutting structure or element.Type: ApplicationFiled: April 27, 2011Publication date: August 18, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Eric E. McClain, Michael L. Doster, John C. Thomas, Matthew R. Isbell, Jarod DeGeorge, Chad T. Jurica
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Publication number: 20110192651Abstract: Earth-boring tools include a body, one or more blades projecting outwardly from the body, and cutting elements carried by the blade. The cutting elements include at least one shearing cutting element and at least one gouging cutting element. Methods of forming an earth-boring tool include mounting a shearing cutting element comprising an at least substantially planar cutting face to a body of an earth-boring tool, and mounting a gouging cutting element comprising a non-planar cutting face to the body of the earth-boring tool. The gouging cutting element may be positioned on the body of the earth-boring tool such that the gouging cutting element will gouge formation material within a kerf cut in the formation material by the shearing cutting element, or between kerfs cut in the formation material by a plurality of shearing cutting elements.Type: ApplicationFiled: February 7, 2011Publication date: August 11, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Nicholas J. Lyons, Rudolf Carl Pessier, Danny E. Scott, David Gavia, Juan Miguel Bilen
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Publication number: 20110174548Abstract: Downhole tools are provided with a topographical pattern, and anti-balling material is provided over the topographical pattern. The topographical pattern may be defined by at least one of a plurality of recesses extending into a surface of a body of the tool and a plurality of protrusions protruding from the surface. Downhole tools include an insert disposed within a recess in a body, and the insert comprises an anti-balling material having a composition selected to reduce accumulation of formation cuttings on the tools when the tools are used to form or service a wellbore. Downhole tools include anti-balling material disposed over a porous mass provided over the surfaces of the tools. Methods of forming downhole tools include providing anti-balling material over features on and/or in a surface of a body of a tool. Methods of repairing downhole tools include removing an insert therefrom and disposing a replacement insert therein.Type: ApplicationFiled: January 13, 2011Publication date: July 21, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Suresh G. Patel, Chaitanya K. Vempati, Steven R. Radford, Timothy K. Marvel, Bruce Stauffer, George I. Butler
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Publication number: 20110162893Abstract: A drill bit having a bit body, at least one blade extending radially from the bit body, a plurality of blade cutting elements disposed on each blade, at least one journal extending downwardly and radially outward from a longitudinal axis of the drill bit, a roller cone or roller disc mounted rotatably to each journal, and a plurality of cutting elements disposed on each roller cone or roller disc, and methods for making the drill bit are disclosed.Type: ApplicationFiled: January 5, 2011Publication date: July 7, 2011Applicant: SMITH INTERNATIONAL, INC.Inventor: Zhehua Zhang
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Publication number: 20110147089Abstract: A drill bit is provided that in one embodiment includes a force application device on a body of a drill bit, the force application device including a floating member and a force application member configured to extend from the floating member to apply a force on a wellbore wall when the drill bit is used to drill a wellbore.Type: ApplicationFiled: March 2, 2011Publication date: June 23, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Ajay V. Kulkarni, David K. Luce, John F. Bradford
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Publication number: 20110108326Abstract: A drill bit configured for boring holes or wells into the earth include a plurality of blades configured with a recessed center such that the blades cut a core therebetween. Cutting elements in the recessed center are configured to cut and remove the core. The recessed center has a first diameter at a height from the cutting elements in the recessed center and a second diameter smaller than the first diameter such that the confining stress on the core is relieved prior to being cut by the cutting elements in the recessed center.Type: ApplicationFiled: November 9, 2010Publication date: May 12, 2011Inventors: Mark L. JONES, Kyle E. JOHNSON
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Publication number: 20110073369Abstract: Earth-boring tools comprise a body having a face at a leading end. A plurality of cutting elements are disposed over the face and configured as a plurality of kerfing pairs comprising two or more cutting elements disposed at substantially the same radial position relative to a bit axis, wherein each of the at least two cutting elements follows substantially the same cutting path when the bit is rotated about its axis. Earth-boring tools are further configured so that a summation of a lateral force generated during drilling by each cutting element of the plurality of cutting elements is directed toward a side of the body.Type: ApplicationFiled: September 28, 2010Publication date: March 31, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Chaitanya K. Vempati, Jack T. Oldham, Suresh G. Patel, Danielle M. Fuselier