Patents by Inventor George D. Goodman
George D. Goodman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10954755Abstract: System and method are disclosed for supplying downhole power using a high-impedance alternator. The system includes a high-impedance alternator coupled with a rectifier at its output terminals, and a current fed power converter coupled with the rectifier providing a regulated voltage to a downhole load.Type: GrantFiled: March 4, 2014Date of Patent: March 23, 2021Assignee: Halliburton Energy Services, Inc.Inventor: George D. Goodman
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Patent number: 10529468Abstract: A cable including a fiber optic core configured to transmit data, a core conductor configured to transmit power and located concentrically around the fiber optic core, and a concentric conductor configured to transmit power and located concentrically around the core conductor and the fiber optic core. The cable also includes a dielectric layer located between the core conductor and the concentric conductor and configured to electrically isolate the core conductor from the concentric conductor.Type: GrantFiled: November 12, 2015Date of Patent: January 7, 2020Assignee: Halliburton Energy Services, Inc.Inventors: George D. Goodman, Wei Zhang
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Publication number: 20190203552Abstract: Disclosed herein are methods and systems that include an automatic wireline tuner. A downhole cable system may comprise a cable assembly comprising a conductor; and a negative impedance circuit at a termination of the conductor in the cable assembly.Type: ApplicationFiled: September 23, 2016Publication date: July 4, 2019Applicant: Halliburton Energy Services, Inc.Inventor: George D. Goodman
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Publication number: 20180308606Abstract: A cable including a fiber optic core configured to transmit data, a core conductor configured to transmit power and located concentrically around the fiber optic core, and a concentric conductor configured to transmit power and located concentrically around the core conductor and the fiber optic core. The cable also includes a dielectric layer located between the core conductor and the concentric conductor and configured to electrically isolate the core conductor from the concentric conductor.Type: ApplicationFiled: November 12, 2015Publication date: October 25, 2018Applicant: Halliburton Energy Services, Inc.Inventors: George D. Goodman, Wei Zhang
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Publication number: 20160348478Abstract: System and method for supplying downhole power using a high-impedance alternator. The system includes a high-impedance alternator coupled with a rectifier at its output terminals, and a current fed power converter coupled with the rectifier providing a regulated voltage to a downhole load.Type: ApplicationFiled: March 14, 2014Publication date: December 1, 2016Applicant: Halliburton Energy Services, Inc.Inventor: George D. GOODMAN
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Patent number: 8212568Abstract: An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.Type: GrantFiled: April 12, 2010Date of Patent: July 3, 2012Assignee: Halliburton Energy Services, Inc.Inventors: Marian L. Morys, William J. Schaecher, George D. Goodman, Raj Pai
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Patent number: 8183863Abstract: A displaced electrode amplifier (“DEA”) for measuring signals from high impedance sources. The amplifier may include an operational amplifier (“op-amp”) configured as a unity gain buffer, with a feedback path to the non-inverting input to at least partly compensate for a parasitic input shunt impedance. In cases where the device is to measure AC signals in high ambient temperatures, the non-inverting input may be coupled via a large resistance to a ground reference that is driven with a second feedback signal to magnify the effective value of the large resistance. Where a differential configuration is desired, one or more tuning resistors may be provided to match responses of different input buffer stages, thereby maximizing the common mode rejection. The disclosed amplifier is suitable for use in oil-based mud resistivity imaging tools but is also suitable for other applications.Type: GrantFiled: November 10, 2006Date of Patent: May 22, 2012Assignee: Halliburton Energy Services, Inc.Inventors: George D. Goodman, Edward J Harris
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Publication number: 20100231225Abstract: An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.Type: ApplicationFiled: April 12, 2010Publication date: September 16, 2010Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Marian L. MORYS, William J. SCHAECHER, George D. GOODMAN, Raj PAI
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Patent number: 7733086Abstract: An NMR logging tool for conducting NMR measurements in a plurality of sensitive volumes ranging up to a meter from the tool. The tool comprises a magnetic assembly using one or more permanent magnets and at least one pole piece for extending a magnet pole and shaping the magnetic field to simulate a magnetic monopole in a sensitive volume within the formation. Different embodiments of a segmented antenna enable directional NMR logging. The tool embodiments and methods of their use are suitable for wireline or LWD logging, and can be used for directional drilling.Type: GrantFiled: October 30, 2008Date of Patent: June 8, 2010Assignee: Halliburton Energy Services, Inc.Inventors: Manfred G. Prammer, Sergey Knizhnik, Stefan K. Menger, George D. Goodman, Edward J. Harris, III, Earle Drack
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Patent number: 7696756Abstract: An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.Type: GrantFiled: June 5, 2006Date of Patent: April 13, 2010Assignee: Halliburton Energy Services, Inc.Inventors: Marian L. Morys, William J. Schaecher, George D. Goodman, Raj Pai
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Publication number: 20090309591Abstract: A displaced electrode amplifier (“DEA”) for measuring signals from high impedance sources. The amplifier may include an operational amplifier (“op-amp”) configured as a unity gain buffer, with a feedback path to the non-inverting input to at least partly compensate for a parasitic input shunt impedance. In cases where the device is to measure AC signals in high ambient temperatures, the non-inverting input may be coupled via a large resistance to a ground reference that is driven with a second feedback signal to magnify the effective value of the large resistance. Where a differential configuration is desired, one or more tuning resistors may be provided to match responses of different input buffer stages, thereby maximizing the common mode rejection. The disclosed amplifier is suitable for use in oil-based mud resistivity imaging tools but is also suitable for other applications.Type: ApplicationFiled: November 10, 2006Publication date: December 17, 2009Applicant: Halliburton Energy Servies, Inc.Inventors: George D. Goodman, Edward J. Harros
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Publication number: 20090072825Abstract: An NMR logging tool for conducting NMR measurements in a plurality of sensitive volumes ranging up to a meter from the tool. The tool comprises a magnetic assembly using one or more permanent magnets and at least one pole piece for extending a magnet pole and shaping the magnetic field to simulate a magnetic monopole in a sensitive volume within the formation. Different embodiments of a segmented antenna enable directional NMR logging. The tool embodiments and methods of their use are suitable for wireline or LWD logging, and can be used for directional drilling.Type: ApplicationFiled: October 30, 2008Publication date: March 19, 2009Inventors: Manfred G. Prammer, Sergey Knizhnik, Stefan K. Menger, George D. Goodman, Edward J. Harris, III, Earle Drack
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Patent number: 7463027Abstract: An NMR logging tool for conducting NMR measurements in a plurality of sensitive volumes ranging up to a meter from the tool. The tool comprises a magnetic assembly using one or more permanent magnets and at least one pole piece for extending a magnet pole and shaping the magnetic field to simulate a magnetic monopole in a sensitive volume within the formation. Different embodiments of a segmented antenna enable directional NMR logging. The tool embodiments and methods of their use are suitable for wireline or LWD logging, and can be used for directional drilling.Type: GrantFiled: April 30, 2004Date of Patent: December 9, 2008Assignee: Halliburton Energy Services, Inc.Inventors: Manfred G. Prammer, Sergey Knizhnik, Stefan K. Menger, George D. Goodman, Edward J. Harris, III, Earle Drack
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Patent number: 6975112Abstract: A system and method for calculating the lateral velocity of a rotating drilling tool within a borehole, the system comprising: a pair of accelerometers placed oppositely across the drilling tool axis of rotation and two magnetometers. The method comprises: reading tool radial acceleration signals ar1, ar2, and tangential acceleration signals, at1 and at3, obtained with a quadrature accelerometer detection system; reading Bx and By, the tool's magnetic phase data, from two orthogonally placed magnetometers; determining the rotational phase angle of the drilling tool relative to the earth's gravity field by first determining the tool's magnetic phase, and the phase shift between the tool's magnetic phase and gravity phase; and processing the foregoing data to yield a lateral tool velocity which optionally compensates for the effect of gravity on the accelerometers, or converts the lateral tool velocity from the tool reference frame to the borehole reference frame, or does both.Type: GrantFiled: February 11, 2003Date of Patent: December 13, 2005Assignee: Halliburton Energy Services, Inc.Inventors: Marian Morys, George D. Goodman, Manfred G. Prammer
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Publication number: 20040251898Abstract: A system and method for calculating the lateral velocity of a rotating drilling tool within a borehole, the system comprising: a pair of accelerometers placed oppositely across the drilling tool axis of rotation and two magnetometers. The method comprises: reading tool radial acceleration signals ar1, ar2, and tangential acceleration signals, at1 and at3, obtained with a quadrature accelerometer detection system; reading Bx and By, the tool's magnetic phase data, from two orthogonally placed magnetometers; determining the rotational phase angle of the drilling tool relative to the earth's gravity field by first determining the tool's magnetic phase, and the phase shift between the tool's magnetic phase and gravity phase; and processing the foregoing data to yield a lateral tool velocity which optionally compensates for the effect of gravity on the accelerometers, or converts the lateral tool velocity from the tool reference frame to the borehole reference frame, or does both.Type: ApplicationFiled: February 11, 2003Publication date: December 16, 2004Inventors: Marian Morys, George D. Goodman, Manfred G. Prammer
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Patent number: 6825659Abstract: A method for manufacturing NMR measurement-while-drilling tool having the mechanical strength and measurement sensitivity to perform NMR measurements of an earth formation while drilling a borehole, and a method and apparatus for monitoring the motion of the measuring tool in order to take this motion into account when processing NMR signals from the borehole. The tool has a permanent magnet with a magnetic field direction substantially perpendicular to the axis of the borehole, a steel collar of a non-magnetic material surrounding the magnet, antenna positioned outside the collar, and a soft magnetic material positioned in a predetermined relationship with the collar and the magnet that helps to shape the magnetic field of the tool. Due to the non-magnetic collar, the tool can withstand the extreme conditions in the borehole environment while the borehole is being drilled.Type: GrantFiled: June 24, 2003Date of Patent: November 30, 2004Assignee: NumarInventors: Manfred G. Prammer, James H. Dudley, Peter Masak, George D. Goodman, Marian Morys, Dale A. Jones, Roger P. Bartel, Chen-Kang David Chen, Michael L. Larronde, Paul F. Rodney, John E. Smaardyk
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Patent number: 6815930Abstract: A protection circuit couples to and protects a battery cell. The protection circuit generally limits the current that can flow through cell when the voltage across the cell falls to a predetermined minimum threshold, such as might occur if the cell is passivated, fails in service, or is reaching the end of its useful life. The protection circuit preferably includes a transistor, which couples in series with the cell and limits the current therethrough. By limiting the current through the cell when its voltage reaches a minimum threshold, the voltage on the cell will not fall below the minimum safe level. A bypass means (e.g., a diode) also is included to conduct current around the cell when its current has been limited by the transistor.Type: GrantFiled: January 24, 2002Date of Patent: November 9, 2004Assignee: Alliburton Energy Services, Inc.Inventor: George D. Goodman
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Publication number: 20040124837Abstract: A method for manufacturing NMR measurement-while-drilling tool having the mechanical strength and measurement sensitivity to perform NMR measurements of an earth formation while drilling a borehole, and a method and apparatus for monitoring the motion of the measuring tool in order to take this motion into account when processing NMR signals from the borehole. The tool has a permanent magnet with a magnetic field direction substantially perpendicular to the axis of the borehole, a steel collar of a non-magnetic material surrounding the magnet, antenna positioned outside the collar, and a soft magnetic material positioned in a predetermined relationship with the collar and the magnet that helps to shape the magnetic field of the tool. Due to the non-magnetic collar, the tool can withstand the extreme conditions in the borehole environment while the borehole is being drilled.Type: ApplicationFiled: June 24, 2003Publication date: July 1, 2004Applicant: NUMARInventors: Manfred G. Prammer, James H. Dudley, Peter Masak, George D. Goodman, Marian Morys, Dale A. Jones, Roger P. Bartel, Chen-Kang David Chen, Michael L. Larronde, Paul F. Rodney, John E. Smaardyk
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Publication number: 20030137280Abstract: A protection circuit couples to and protects a battery cell. The protection circuit generally limits the current that can flow through cell when the voltage across the cell falls to a predetermined minimum threshold, such as might occur if the cell is passivated, fails in service, or is reaching the end of its useful life. The protection circuit preferably includes a transistor, which couples in series with the cell and limits the current therethrough. By limiting the current through the cell when its voltage reaches a minimum threshold, the voltage on the cell will not fall below the minimum safe level. A bypass means (e.g., a diode) also is included to conduct current around the cell when its current has been limited by the transistor.Type: ApplicationFiled: January 24, 2002Publication date: July 24, 2003Inventor: George D. Goodman
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Patent number: 6583621Abstract: A method for manufacturing NMR measurement-while-drilling tool having the mechanical strength and measurement sensitivity to perform NMR measurements of an earth formation while drilling a borehole, and a method and apparatus for monitoring the motion of the measuring tool in order to take this motion into account when processing NMR signals from the borehole. The tool has a permanent magnet with a magnetic field direction substantially perpendicular to the axis of the borehole, a steel collar of a non-magnetic material surrounding the magnet, antenna positioned outside the collar, and a soft magnetic material positioned in a predetermined relationship with the collar and the magnet that helps to shape the magnetic field of the tool. Due to the non-magnetic collar, the tool can withstand the extreme conditions in the borehole environment while the borehole is being drilled.Type: GrantFiled: March 27, 2002Date of Patent: June 24, 2003Assignee: Numar CorporationInventors: Manfred G. Prammer, James H. Dudley, Peter Masak, George D. Goodman, Marian Morys, Dale A. Jones, Roger P. Bartel, Chen-Kang David Chen, Michael L. Larronde, Paul F. Rodney, John E. Smaardyk