With Bit Wear Signal Generating Patents (Class 175/39)
  • Patent number: 9739093
    Abstract: A cutting element for an earth-boring tool includes a body having a longitudinal axis, a generally planar volume of hard material carried by the body, and a sensor affixed to the body. The sensor may be configured to sense at least one of stress and strain. An earth-boring tool includes a cutting element disposed at least partially within a pocket of a body. Methods of forming cutting elements comprise securing a generally planar volume of hard material to a body, attaching a sensor to the body, and configuring the sensor. Methods of forming earth-boring tools comprise forming a cutting element and securing the cutting element within a recess in a body of the earth-boring tool. Methods of forming wellbores comprise rotating an earth-boring tool comprising a cutting element and measuring at least one of stress and strain.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 22, 2017
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Tu Tien Trinh, Eric C. Sullivan, Xiaomin C. Cheng
  • Patent number: 9556728
    Abstract: A method for analyzing a wellbore drilling operation includes acquiring sonic log data, gamma ray log data, and rate of penetration (ROP) data. The sonic log data, the gamma ray log data, and the ROP data are associated with depth intervals of a wellbore. The method further includes determining unconfined compressive strength (UCS) of a rock formation associated with the wellbore using well log data and drilling data. The well log data is limited to the sonic log data and the gamma ray log data, and the drilling data is limited to the ROP data.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: January 31, 2017
    Assignee: VAREL EUROPE S.A.S.
    Inventor: Michel de Reynal, Jr.
  • Patent number: 9551192
    Abstract: A method and apparatus for providing a reliable signal to the operator while drilling when a bit or tool becomes worn or damaged to a predetermined extent. The approach, in an exemplary embodiment, is to integrate one or more wear tracer elements into one or more parts of a drill bit or downhole tool that do not engage the earthen formation until the predetermined wear or damage occurs. At that time wear tracer elements are released upon wearing of the bit body, cutters, inserts, nozzles, or other components that include the wear tracer elements and enter the drill fluid. The presence of wear tracer elements in drilling fluid can be detected at the surface directly, or indirectly as a result of, for example, one or more reactions between the wear tracer elements and the mud, formation, or other subterranean elements, which yield some compound that may then be detected.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: January 24, 2017
    Assignee: Ulterra Drilling Technologies, L.P.
    Inventor: Aron Deen
  • Patent number: 9518450
    Abstract: Teachings of the disclosure are directed to a reamer and/or bit interaction model system and method. The method may include receiving performance data regarding a cutting structure, and calculating a characteristic curve, using the performance data. The characteristic curve may be weight-based and/or torque-based. The method may also include storing the characteristic curve. In particular embodiments, the characteristic curve may include either weight on cutting structure or torque on the cutting structure, as a function of the rate of penetration.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 13, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Luk Servaes, John Ransford Hardin, Jr., Stefano Mancini, Eric Lauret, Shilin Chen
  • Patent number: 9506336
    Abstract: A method of drilling a subterranean bore hole comprising a) pumping a drilling fluid down a drill string, the drill string having a drill bit at an end thereof, b) rotating the drill string about its longitudinal axis to that the bit forms bore hole in the ground, the method further comprising the steps of: c) changing the rate of pumping of the drilling fluid into the drill string in response to a change in the speed of rotation of the drill string, and/or changing the speed of rotation of the drill string in response to a change in the rate of pumping of the drilling fluid into the drill string.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: November 29, 2016
    Assignee: MANAGED PRESSURE OPERATIONS PTE LTD
    Inventor: Charles Orbell
  • Patent number: 9469008
    Abstract: A device for measuring resistance to drilling in a material being investigated, especially wood, with a drilling appliance (1) driving a drill bit (2) into the material and a measuring device for measuring the mechanical resistance to the drill bit (2) upon its penetration into the material, is configured and modified in regard to a secure measurement even in tight space conditions around the material being investigated such that the drilling appliance (1) is coordinated with several U-shaped guide elements (4) which can move along a drilling axis (3) with legs (5, 6) of different length and a base region (7) joining the two legs (5, 6), and in each longer leg (6) a passage (8) is formed for the drill bit (2) in order to guide the drill bit (2).
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 18, 2016
    Inventor: Frank Rinn
  • Patent number: 9297251
    Abstract: A drill bit includes a plurality of blades. The blades provide a plurality of cutting elements or teeth arranged on a leading face of the blade. At least one temperature sensor is provided adjacent at least one of the teeth of at least one blade to sense a local temperature of the blade adjacent that tooth. Multiple temperature sensors may be provided adjacent different teeth of a blade or adjacent the teeth of at least two blades, or adjacent multiple teeth of multiple blades. Another temperature sensing element may be provided on a proximal portion of the blade distant from the cutting elements or on the shank of the bit to provide a reference temperature for the drill bit or for the blade. Information obtained by the temperature sensing elements is used to provide information regarding at least one of the drill bit, the drilling environment and the formation.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: March 29, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Martin E. Poitzsch
  • Patent number: 9243381
    Abstract: An erosion monitoring system is disclosed for use with a machine. The erosion monitoring system may have an ultrasonic sensor embedded within a replaceable cutting edge of a ground engaging tool connectable to the machine. The erosion monitoring system may also have a wireless communication element associated with the ultrasonic sensor, and a controller mountable onboard the machine in communication with the ultrasonic sensor via the wireless communication element. The controller may be configured to monitor a wear rate of the cutting edge based on signals from the ultrasonic sensor.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: January 26, 2016
    Assignee: Caterpillar Inc.
    Inventors: Matthew J. Behmlander, Terri L. Atkinson, Jeremy R. Hammar, Robert L. Meyer
  • Patent number: 9217295
    Abstract: Earth-boring tools include one or more cutting elements having at least one grading feature positioned a known distance from an initial working surface of the cutting element. Methods of grading cutting element loss on earth-boring tools include comparing locations of wear surfaces on cutting elements to locations of one or more grading features in or on the cutting elements. In some embodiments, a cutting element may comprise an insert having a generally cylindrical body, a substantially planar cutting face surface, a substantially arcuate side surface, and at least one grading feature. In additional embodiments, a cutting element may comprise a tooth having one or more grading features.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: December 22, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Sean W. Wirth
  • Patent number: 9022143
    Abstract: Described herein is a wear indicator (100) for use in a drill bit or a core head. The wear indicator (100) comprises an elongate element that forms part of the drill bit. The elongate element has a plurality of numbers (110, 120, 130, 140, 150, 160, 170, 180) formed along its length, each number (110, 120, 130, 140, 150, 160, 170, 180) being formed as a void and corresponds to a level of wear in accordance with the IADC dull grading system. As the drill becomes worn, the wear indicator (100) wears at the same rate to reveal one of the numbers (110, 120, 130, 140, 150, 160, 170, 180). The numbers range from “1” to “8” where the number “1” illustrates the least wear and the number “8” indicates the most wear. When unworn, none of the numbers are visible.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: May 5, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Olivier Dupont, Nuno Da Silva
  • Patent number: 8899350
    Abstract: A method for determining wear of a drill bit is disclosed. The method includes drilling a first hole in a worksite based on a hole pattern having a plurality of planned holes and determining an energy required to drill the first hole. The method also includes drilling a second hole in the worksite and determining an energy required to drill the second hole. The method further includes determining a wear of the drill bit using the determined energy required to drill the first hole and the determined energy required to drill the second hole.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 2, 2014
    Assignee: Caterpillar Inc.
    Inventor: Frederic Nadeau
  • Publication number: 20140326506
    Abstract: An earth-boring tool includes a cutting element comprising a hard material and at least one of a signal generator configured to provide an electromagnetic or acoustic signal to an interface between a surface of the hard material and a surface of a subterranean formation, and a sensor configured to receive an electromagnetic or acoustic signal from the interface. A method of forming a wellbore includes rotating the earth-boring tool within a wellbore and cutting formation material with a cutting element, transmitting a signal through the cutting element to an interface between the cutting element and the formation material, and measuring a response received at a sensor. A cutting element includes a transmitter oriented and configured to dispense a signal to an interface between the cutting surface and a surface of a formation and a sensor oriented and configured to measure a signal from the interface.
    Type: Application
    Filed: March 19, 2014
    Publication date: November 6, 2014
    Applicant: Baker Hughes Incorporated
    Inventor: Rocco DiFoggio
  • Patent number: 8863859
    Abstract: The invention relates to a method for determining the wear of a force-loaded linkage of an earthwork device, wherein the instantaneous load on the linkage is measured during operation of the earthwork device and used to perform a calculation of the service life.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: October 21, 2014
    Assignee: Tracto-Technik GmbH & Co. KG
    Inventors: Elmar Koch, Sebastian Fischer
  • Publication number: 20140290351
    Abstract: A system, method and apparatus for determining wear on a component of a tool is disclosed. An oscillating member receives a particle freed from the component as a result of the wear on the component. A measuring device measures a change in a parameter of the oscillating member resulting from receiving the particle. A processor determines the wear on the component from the change in the parameter. In one embodiment, the component may include a component of a downhole tool.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 2, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Thomas Kruspe
  • Patent number: 8775099
    Abstract: This invention relates to a system for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. A sensor is arranged to inspect a milling tool of a milling machine. The sensor is configured to detect a signal corresponding to a position value of at least one point on the milling tool.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: July 8, 2014
    Assignee: Wirtgen GmbH
    Inventors: Stefan Wagner, Cyrus Barimani, Günter Hähn
  • Patent number: 8757291
    Abstract: An apparatus for forming a wellbore in a formation may include a bit body and a sensor in the bit body. The sensor may include at least one cutting element and may be configured to generate information relating to a parameter of interest when the drill bit engages a wellbore surface.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: June 24, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Sunil Kumar, Hendrik John, Dan Scott, Anthony DiGiovanni
  • Patent number: 8757290
    Abstract: A method of monitoring the wear of drill bits for drilling wells in earth formations, several embodiments of an improved drill bit for drilling a well in an earth formation, and methods of manufacture. In one embodiment, the bit is assembled by forming the bit, including a bit body and a plurality of cutting components; introducing a wear detector into the bit; and providing a module to monitor the wear detector and generate an indication of bit wear. The wear detector may be a witness material that may change a characteristic of at least a portion of the bit. The module may detect when the witness material is separated from the bit. The wear detector may be introduced during or after formation of the bit. The bit wear may be displayed for an operator.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: June 24, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Sorin G. Teodorescu, Terry Hunt
  • Patent number: 8718802
    Abstract: A prog analysis and execution system and method. The system includes a computer control system, an interface engine in communication with the computer control system, the interface engine being configured to receive prog information, and an action item development engine in communication with the control system, the action item development engine being configured to analyze received prog information and to determine corresponding action items. The system further includes a sensor engine in communication with the computer control system, the sensor engine being configured to receive input from at least one sensor for use in controlling a well drilling operation, and an operational equipment engine in communication with the computer control system, the operational equipment engine being configured to receive input from the computer control system and to control the well drilling operation in accordance with the determined action items in the prog.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: May 6, 2014
    Assignee: Canrig Drilling Technology Ltd.
    Inventor: Scott G. Boone
  • Publication number: 20140102791
    Abstract: Described herein is a wear indicator (100) for use in a drill bit or a core head. The wear indicator (100) comprises an elongate element that forms part of the drill bit. The elongate element has a plurality of numbers (110, 120, 130, 140, 150, 160, 170, 180) formed along its length, each number (110, 120, 130, 140, 150, 160, 170, 180) being formed as a void and corresponds to a level of wear in accordance with the IADC dull grading system. As the drill becomes worn, the wear indicator (100) wears at the same rate to reveal one of the numbers (110, 120, 130, 140, 150, 160, 170, 180). The numbers range from “1” to “8” where the number “1” illustrates the least wear and the number “8” indicates the most wear. When unworn, none of the numbers are visible.
    Type: Application
    Filed: June 3, 2011
    Publication date: April 17, 2014
    Inventors: Olivier Dupont, Nuno Da Silva
  • Patent number: 8695729
    Abstract: A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: April 15, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Sunil Kumar, Anthony A. Digiovanni, Dan Scott, Hendrik John, Othon Monteiro
  • Patent number: 8640791
    Abstract: A system and method for monitoring underground drilling in which vibration is monitored by creating a model of the drill string using finite element techniques or finite difference techniques and (i) predicting vibration by inputting real time values of operating parameters into the model, and then adjusting the model to agree with measured vibration data, (ii) predicting the weight on bit and drill string and mud motor speeds at which resonance will occur, as well as when stick-slip will occur, so that the operator can avoid operating regimes that will result in high vibration, (iii) determining vibration and torque levels along the length of the drill string based on the measured vibration and torque at one or more locations, (iv) determining the remaining life of critical components of the drill string based on the history of the vibration to which the components have been subjected, and (v) determining the optimum drilling parameters that will avoid excessive vibration of the drill string.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: February 4, 2014
    Assignee: APS Technology, Inc.
    Inventors: William Evans Turner, Mark Ellsworth Wassell
  • Publication number: 20130256032
    Abstract: Downhole abrading tools have one or more identification tags disposed in or on the cutting end of the tools, and a housing having a detector and a relay module. The identification tags emit one or more signals that are detected by the detector which is disposed in close proximity to the cutting end. The relay module is operatively associated with the detector. During operation of the tool, the cutting end is worn causing release or destruction of one or more identification tags. The release or destruction of one or more identification tags causes a change in the signal or signals being detected by the detector. The signal change(s) is/are communicated through the relay module to the operator so that the operator can identify in real-time the amount of wear of the cutting end and, in some embodiments, the location of the wear of the cutting end.
    Type: Application
    Filed: February 25, 2013
    Publication date: October 3, 2013
    Inventor: Larry T. Palmer
  • Patent number: 8534391
    Abstract: Earth-boring tools include one or more cutting elements having at least one grading feature positioned a known distance from an initial working surface of the cutting element. Methods of grading cutting element loss on earth-boring tools include comparing locations of wear surfaces on cutting elements to locations of one or more grading features in or on the cutting elements. In some embodiments, a cutting element may comprise an insert having a generally cylindrical body, a substantially planar cutting face surface, a substantially arcuate side surface, and at least one grading feature. In additional embodiments, a cutting element may comprise a tooth having one or more grading features.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: September 17, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Sean W. Wirth
  • Patent number: 8386196
    Abstract: This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: February 26, 2013
    Assignee: Wirtgen GmbH
    Inventors: Stefan Wagner, Cyrus Barimani, Günter Hähn
  • Publication number: 20130008717
    Abstract: A method and apparatus for providing a reliable signal to the operator while drilling when a bit or tool becomes worn or damaged to a predetermined extent. The approach, in an exemplary embodiment, is to integrate one or more wear tracer elements into one or more parts of a drill bit or downhole tool that do not engage the earthen formation until the predetermined wear or damage occurs. At that time wear tracer elements are released upon wearing of the bit body, cutters, inserts, nozzles, or other components that include the wear tracer elements and enter the drill fluid. The presence of wear tracer elements in drilling fluid can be detected at the surface directly, or indirectly as a result of, for example, one or more reactions between the wear tracer elements and the mud, formation, or other subterranean elements, which yield some compound that may then be reliably detected.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 10, 2013
    Inventor: ARON DEEN
  • Publication number: 20120152617
    Abstract: A bit is assembled by forming the bit, including a bit body and a plurality of cutting components; embedding at least one electrical circuit into the bit, the circuit including a temperature sensor; and providing a module to monitor the circuits and generate an indication of bit wear. The electrical circuit may experience a change in resistance or conductivity due to wear of the bit and/or changes in an earth formation adjacent the bit. The bit wear and/or formation changes may be displayed for an operator.
    Type: Application
    Filed: September 20, 2011
    Publication date: June 21, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Terry Hunt, Sorin G. Teodorescu, Eric Sullivan
  • Publication number: 20120152618
    Abstract: A method for determining wear of a drill bit is disclosed. The method includes drilling a first hole in a worksite based on a hole pattern having a plurality of planned holes and determining an energy required to drill the first hole. The method also includes drilling a second hole in the worksite and determining an energy required to drill the second hole. The method further includes determining a wear of the drill bit using the determined energy required to drill the first hole and the determined energy required to drill the second hole.
    Type: Application
    Filed: October 21, 2011
    Publication date: June 21, 2012
    Inventor: Frederic Nadeau
  • Patent number: 8185366
    Abstract: In one aspect, the invention provides a method for modeling the performance of a fixed cutter bit drilling an earth formation. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as drilled, simulating the bit drilling the earth formation, displaying the simulating, and adjusting at least one parameter affecting the performance. The method of design is used to make a fixed cutter drill bit. In another embodiment the method includes numerically rotating the bit, calculating bit interaction with the earth formation during the rotating, and determining the forces on the cutters during the rotation based on the calculated interaction with earth formation and empirical data.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: May 22, 2012
    Assignee: Smith International, Inc.
    Inventors: Sujian J. Huang, Peter Thomas Cariveau
  • Publication number: 20110290560
    Abstract: A drill bit with a bit body having a central bore in communication with a plurality of nozzles for directing drilling fluid; a plurality of cutters defining a cutting face of the bit; and a passageway extending from the central bore toward the cutting face, such that excessive wear of the cutting face opens the passageway to allow the drilling fluid to flow therethrough, thereby reducing a surface pressure of the drilling fluid and indicating excessive wear of the bit. The passageway may extend to adjacent, or within one half inch or three inches of, the cutting face, such that excessive wear opens the passageway to the cutting face. In some cases, the passageway may actually extend through the cutting face with a plug inserted into the passageway at the cutting face to prevent the drilling fluid from exiting the passageway absent wear of the bit.
    Type: Application
    Filed: June 1, 2010
    Publication date: December 1, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Robert J. Buske, Mark Philip Blackman, John F. Bradford, Michael S. Damschen, Robert D. Bradshaw, Rudolf C. Pessier
  • Publication number: 20110266054
    Abstract: An apparatus for forming a wellbore in a formation may include a bit body and a sensor in the bit body. The sensor may include at least one cutting element and may be configured to generate information relating to a parameter of interest when the drill bit engages a wellbore surface.
    Type: Application
    Filed: April 25, 2011
    Publication date: November 3, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sunil Kumar, Hendrik John, Dan Scott, Anthony DiGiovanni
  • Patent number: 8006781
    Abstract: A method of monitoring the wear of drill bits for drilling wells in earth formations, several embodiments of an improved drill bit for drilling a well in an earth formation, and methods of manufacture. In one embodiment, the bit is assembled by forming the bit, including a bit body and a plurality of cutting components; introducing a wear detector into the bit; and providing a module to monitor the wear detector and generate an indication of bit wear. The wear detector may be a witness material that may change a characteristic of at least a portion of the bit. The module may detect when the witness material is separated from the bit. The wear detector may be introduced during or after formation of the bit. The bit wear may be displayed for an operator.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 30, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Sorin G. Teodorescu, Terry Hunt
  • Patent number: 7844405
    Abstract: A method of measuring the compressibility, and/or the density, of small particles, and especially nano-particles, in suspension is described. The static method uses steady pressures and measures the d-c (static) compressibility of particles. The ultrasonic method utilizes an ultrasonic pulsed doppler system to measure the compressibility of particles at ultrasonic frequencies, which may differ from static values. These methods can also be used together to provide overlapping and complementary information about the particles. In addition, the ultrasonic pulsed doppler system also provides a way to measure particle density.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: November 30, 2010
    Inventor: Steven A. Africk
  • Publication number: 20100212961
    Abstract: A drill bit for drilling subterranean formations includes a bit body bearing at least one gage pad and a shank extending from the bit body. An annular chamber is formed within the shank. A data evaluation module is disposed in the annular chamber and includes a processor, a memory, and a communication port. The data evaluation module estimates a gage pad wear by periodically sampling a tangential accelerometer and a radial accelerometer disposed in the drill bit. A history of the tangential acceleration and the radial acceleration is analyzed to determine a revolution rate, gage-slipping periods, and gage-cutting periods. A change in a gage-pad-wear state is estimated responsive to an analysis of the revolution rate, the at least one gage-cutting period and the at least one gage-slipping period. The determination of the gage-pad-wear state may also include analyzing a formation hardness.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Sorin Gabriel Teodorescu
  • Patent number: 7770664
    Abstract: An expandable underreamer apparatus disposed on a distal end of a drillstring and configured to drill a formation includes a substantially tubular main body adjacent a cutting head, the main body providing at least one axial recess configured to receive an arm assembly, and the arm assembly configured to translate between a retracted position and an extended position. The apparatus further includes a plurality of cutting elements disposed on the arm assembly, and a plurality of wear indicators imbedded in at least one arm assembly and positioned behind the cutting elements with respect to a direction of rotation of the arm assembly, wherein the wear indicators are configured to provide an increased torque to the drillstring upon contacting the formation.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 10, 2010
    Assignee: Smith International, Inc.
    Inventors: Tommy Laird, Gordon Whipple
  • Publication number: 20100139975
    Abstract: A method of monitoring the wear of drill bits for drilling wells in earth formations, several embodiments of an improved drill bit for drilling a well in an earth formation, and methods of manufacture. In one embodiment, the bit is assembled by forming the bit, including a bit body and a plurality of cutting components; introducing a wear detector into the bit; and providing a module to monitor the wear detector and generate an indication of bit wear. The wear detector may be a witness material that may change a characteristic of at least a portion of the bit. The module may detect when the witness material is separated from the bit. The wear detector may be introduced during or after formation of the bit. The bit wear may be displayed for an operator.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sorin G. TEODORESCU, Terry HUNT
  • Patent number: 7726415
    Abstract: The fixed cutter drill bit disclosed utilizes a unique piloting section and reaming section carefully designed to impart several specific operational advantages. In the piloting section, cutting structures have been arranged so as to create offsetting cutting forces that result in a net zero imbalance during operation. Furthermore, the piloting section utilizes carefully placed shock studs which aid in protecting the primary cutting structure. In addition, the location of the fluid supply nozzles on the body of the reamer section serves to indicate the occurrence of a catastrophic cutting structure failure below the pilot gage.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: June 1, 2010
    Assignee: OTS International, Inc.
    Inventors: Robert George Tipton, Carl W. Keith, Gerald A. Strenk, Jr.
  • Patent number: 7707009
    Abstract: A method and system for automatically calculating and generating performance analysis charts, including a reliability curve. The method and system are used to selectively convert performance records data from a database into graphs and charts reflective of a performance analysis. A tool and method is provided for predicting the effective life or run time of a component, such as a drill bit, based on calculated reliabilities for similar components.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: April 27, 2010
    Assignee: Smith International, Inc.
    Inventor: Stephen C. Steinke
  • Patent number: 7693695
    Abstract: In one aspect, the invention provides a method for modeling the performance of a fixed cutter bit drilling an earth formation. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as drilled, simulating the bit drilling the earth formation, displaying the simulating, and adjusting at least one parameter affecting the performance. The method of design is used to make a fixed cutter drill bit. In another embodiment the method includes numerically rotating the bit, calculating bit interaction with the earth formation during the rotating, and determining the forces on the cutters during the rotation based on the calculated interaction with earth formation and empirical data.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 6, 2010
    Assignee: Smith International, Inc.
    Inventors: Sujian J. Huang, Peter Thomas Cariveau
  • Publication number: 20100051292
    Abstract: A drill bit made according to one embodiment includes at least one of a weight sensor and a torque sensor configured to provide signals representative of the weight and torque on the drill bit when the drill bit is used for cutting into a formation. A circuit may be configured to process signals from the weight and torque sensors to provide an estimate the weight and torque on the bit when the drill bit used for cutting into the formation.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Tu Tien Trinh, Eric Sullivan, Daryl Pritchard
  • Publication number: 20090294173
    Abstract: An expandable underreamer apparatus disposed on a distal end of a drillstring and configured to drill a formation includes a substantially tubular main body adjacent a cutting head, the main body providing at least one axial recess configured to receive an arm assembly, and the arm assembly configured to translate between a retracted position and an extended position. The apparatus further includes a plurality of cutting elements disposed on the arm assembly, and a plurality of wear indicators imbedded in at least one arm assembly and positioned behind the cutting elements with respect to a direction of rotation of the arm assembly, wherein the wear indicators are configured to provide an increased torque to the drillstring upon contacting the formation.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Tommy Laird, Gordon Whipple
  • Patent number: 7624810
    Abstract: A technique that is usable with a well includes running string that includes a tool and a flowable object that is held in a retained position within the string downhole in the well. After the string is run downhole in the well, the flowable object is released to permit the object to flow in and subsequently seat in a flow path of the string to impede fluid communication so that the tool may be actuated in response to the impeded fluid communication.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: December 1, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Jeremie C. Fould, Timothy M. O'Rourke, Michael W. Rea, Bryan C. Linn
  • Patent number: 7600581
    Abstract: A downhole abrading tool has a body with a first end for connection to a drill string, a cutting end, a drilling fluid passageway, and a fusible material disposed within the body. The fusible material is capable of igniting and combusting in response to a selected temperature increase due to excessive wear on the cutting end. Combustion of the fusible material provides an indication to an operator of the downhole abrading tool of the excessive wear on the cutting end of the downhole abrading tool so that the downhole abrading tool can be removed from the well and replaced. The indication to the operator of the downhole abrading tool can be a temperature change or a pressure change in a drilling fluid flowing through the drilling fluid passageway.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: October 13, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Yang Xu, Gerald Lynde
  • Patent number: 7575070
    Abstract: A downhole abrading tool having a body with a first end for connection to a drill string, a cutting end, a drilling fluid passageway, a restrictor disposed within drilling fluid passageway, and an indicator chamber is disclosed. Upon exposure of the indicator chamber to a well environment due to excessive wear on the cutting end, the restrictor is actuated. Actuation of the restrictor restricts the flow of drilling fluid from the drilling fluid passageway into the well environment. The restriction of flow of drilling fluid from the drilling fluid passageway causes a pressure increase in the drilling fluid flowing through the well that can detected by an operator of the downhole abrading tool. The pressure increase provides an indication to the operator of excessive wear on the cutting end of the downhole abrading tool so that the downhole abrading tool can be removed from the well and replaced.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: August 18, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Sean L. Gaudette, Yang Xu, Gerald Lynde
  • Patent number: 7565928
    Abstract: A downhole abrading tools has a body with a first end for connection with a rotating component of a drill string and a cutting end for rotation in unison with the body. The downhole abrading tool also includes a passage through the tool for circulating a drilling fluid. Disposed within the drilling fluid passageway is a taggant injection assembly having one or more taggants disposed therein that facilitates injection of taggants into the drilling fluid upon the cutting end experience excessive wear. The taggants are then transported to the surface location along with the drilling fluid for detection by the operator of the downhole abrading tool.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: July 28, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Gerald Lynde, Darrin L. Willauer
  • Publication number: 20090126995
    Abstract: A downhole abrading tools has a body with a first end for connection with a rotating component of a drill string, and a cutting end for rotation in unison with the body, the cutting end having an abrading matrix containing an abrasive material for rotating engagement with an object within the well. The downhole abrading tool also includes a passage through the tool for circulating a drilling fluid. The abrading matrix includes at least one taggant embedded within the abrading matrix capable of being released by the abrading matrix into the downhole location due to wear on the abrasive material and transported to the surface location along with the drilling fluid for detection. When the taggant is released due to excessive wear, the taggant is carried from the downhole location in the well to the surface of the well where it can be detected by the operator of the tool.
    Type: Application
    Filed: August 18, 2008
    Publication date: May 21, 2009
    Inventor: Gerald Lynde
  • Patent number: 7484571
    Abstract: A downhole abrading tool having a body with a first end for connection to a drill string, a cutting end, a drilling fluid passageway, a restrictor disposed within drilling fluid passageway, and an indicator chamber is disclosed. Upon exposure of the indicator chamber to a well environment due to excessive wear on the cutting end, the restrictor is actuated. Actuation of the restrictor restricts the flow of drilling fluid from the drilling fluid passageway into the well environment. The restriction of flow of drilling fluid from the drilling fluid passageway causes a pressure increase in the drilling fluid flowing through the well that can detected by an operator of the downhole abrading tool. The pressure increase provides an indication to the operator of excessive wear on the cutting end of the downhole abrading tool so that the downhole abrading tool can be removed from the well and replaced.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 3, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Sean L. Gaudette, Yang Xu, Gerald Lynde
  • Publication number: 20080230271
    Abstract: A downhole abrading tool has a body with a first end for connection to a drill string, a cutting end, a drilling fluid passageway, and a fusible material disposed within the body. The fusible material is capable of igniting and combusting in response to a selected temperature increase due to excessive wear on the cutting end. Combustion of the fusible material provides an indication to an operator of the downhole abrading tool of the excessive wear on the cutting end of the downhole abrading tool so that the downhole abrading tool can be removed from the well and replaced. The indication to the operator of the downhole abrading tool can be a temperature change or a pressure change in a drilling fluid flowing through the drilling fluid passageway.
    Type: Application
    Filed: May 30, 2008
    Publication date: September 25, 2008
    Inventors: Yang Xu, Gerald Lynde
  • Patent number: 7424910
    Abstract: A downhole abrading tool has a body with a first end for connection to a drill string, a cutting end, an exterior surface, a drilling fluid passageway, a valve, and a chamber. Upon exposure of the chamber to a wellbore fluid pressure due to excessive wear on the cutting end, the valve opens. The opening of the valve permits drilling fluid to flow from the drilling fluid passageway, through the exterior surface and into the wellbore. The flow of drilling fluid through the exterior surface causes a pressure drop that is detected at the surface by an operator of the downhole abrading tool. The valve movement may also cause the release of taggants, or indicators, into the drilling fluid that may also be detected by the operator, either visually or with the aid of detection equipment.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 16, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Yang Xu, Gerald Lynde
  • Patent number: 7404456
    Abstract: Acoustic signals generated by drilling a bore hole with a drill bit are received at sensors placed in the drill string. The acoustic signals received by the sensors are processed, e.g. using a Fourier transform, and a characteristic of the acoustic signals is used to identify lithology, rock strength, presence of oil, presence of gas, change in lithology, or the like.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: July 29, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gary Weaver, Roger L. Schultz
  • Patent number: 7404457
    Abstract: A downhole abrading tool has a body with a first end for connection to a drill string, a cutting end, a drilling fluid passageway, and a fusible material disposed within the body. The fusible material is capable of igniting and combusting in response to a selected temperature increase due to excessive wear on the cutting end. Combustion of the fusible material provides an indication to an operator of the downhole abrading tool of the excessive wear on the cutting end of the downhole abrading tool so that the downhole abrading tool can be removed from the well and replaced. The indication to the operator of the downhole abrading tool can be a temperature change or a pressure change in a drilling fluid flowing through the drilling fluid passageway.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: July 29, 2008
    Assignee: Baker Huges Incorporated
    Inventors: Yang Xu, Gerald Lynde