Patents by Inventor Gary A. Hazen
Gary A. Hazen 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: 10370961Abstract: A tool for use in a borehole in a geological formation may include a chassis, a drill collar surrounding the chassis, a port plug coupled between the drill collar and the chassis, RF antennas carried by the drill collar, and a multi-chip module (MCM) electronics package(s). The electronics package(s) may include a hermetically sealed electronics housing positioned between the chassis and the drill collar, a substrate within the electronics housing, RF transmitter circuitry on the substrate to cooperate with at least one first RF antenna to transmit RF signals into the geological formation, and RF receiver circuitry on the substrate to cooperate with at least one second RF antenna to receive RF signals from the geological formation. Furthermore, an electronics housing mount may couple the electronics housing with the port plug, and the electronics housing mount may have a passageway extending therethrough for receiving the port plug.Type: GrantFiled: April 4, 2016Date of Patent: August 6, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Amanda Olivio, Gary A. Hazen, Fernando Garcia-Osuna, Robert Monroe Lowe, Jr., Jason Guernsey, Tao Xu, Michael C. Sakach, Mark A. Fredette, Ricardo Y. Torres, Arturo Mejia, Mia Pommier
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Publication number: 20180073354Abstract: A tool for use in a borehole in a geological formation may include a chassis, a drill collar surrounding the chassis, a port plug coupled between the drill collar and the chassis, RF antennas carried by the drill collar, and a multi-chip module (MCM) electronics package(s). The electronics package(s) may include a hermetically sealed electronics housing positioned between the chassis and the drill collar, a substrate within the electronics housing, RF transmitter circuitry on the substrate to cooperate with at least one first RF antenna to transmit RF signals into the geological formation, and RF receiver circuitry on the substrate to cooperate with at least one second RF antenna to receive RF signals from the geological formation. Furthermore, an electronics housing mount may couple the electronics housing with the port plug, and the electronics housing mount may have a passageway extending therethrough for receiving the port plug.Type: ApplicationFiled: April 4, 2016Publication date: March 15, 2018Inventors: Amanda Olivio, Gary A. Hazen, Fernando Garcia-Osuna, Robert Monroe Lowe, Jr., Jason Guernsey, Tao Xu, Michael C. Sakach, Mark A. Fredette, Ricardo Y. Torres, Arturo Mejia, Mia Pommier
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Publication number: 20160178780Abstract: Systems and methods for antenna transmitter health determinations and borehole compensation for an electromagnetic measurement tools are provided. The input current to an antenna transmitter of an electromagnetic measurement tool may be measured using a current measurement circuit. An output voltage proportional to the input current may be provided and compared to a threshold to determine the health of the antenna transmitter. A replacement borehole compensation matrix for calculating a combined attenuation measurement may be selected based on an identified unhealthy antenna transmitter.Type: ApplicationFiled: December 2, 2015Publication date: June 23, 2016Inventors: Joshua W. Gibson, Libo Yang, Gary A. Hazen, Mark A. Fredette, Fernando Garcia-Osuna
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Patent number: 7812609Abstract: Improved receiver antennas are disclosed for long offset tensor induction army logging tools. The disclosed antennas include a bobbin which accommodates a ferromagnetic core. The outer surface of the bobbin is wrapped around a binding so that winding is thicker or includes more turns towards a center of the bobbin and is thinner or includes less turns towards the outer ends of the bobbin. The result is that the primary winding with a curved or parabolic profile that enhances the effective magnetic permeability and magnetic moment of the antenna. A secondary winding may also be utilized for flux feedback compensation. The elimination of winding turns towards the ends of the magnetic coil result in reduced DC resistance and the reduction in parasitic capacitance of the antennas. The disclosed antennas may be used in x-y-z receiver arrays.Type: GrantFiled: December 20, 2007Date of Patent: October 12, 2010Assignee: Schlumberger Technology CorporationInventors: Ismael Martinez, Dean M. Homan, Laurent Villegas, Gary A. Hazen
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Publication number: 20090160449Abstract: Improved receiver antennas are disclosed for long offset tensor induction army logging tools. The disclosed antennas include a bobbin which accommodates a ferromagnetic core. The outer surface of the bobbin is wrapped around a binding so that winding is thicker or includes more turns towards a center of the bobbin and is thinner or includes less turns towards the outer ends of the bobbin. The result is that the primary winding with a curved or parabolic profile that enhances the effective magnetic permeability and magnetic moment of the antenna. A secondary winding may also be utilized for flux feedback compensation. The elimination of winding turns towards the ends of the magnetic coil result in reduced DC resistance and the reduction in parasitic capacitance of the antennas. The disclosed antennas may be used in x-y-z receiver arrays.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Ismael Martinez, Dean M. Homan, Laurent Villegas, Gary A. Hazen
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Patent number: 7193420Abstract: A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid thType: GrantFiled: January 17, 2006Date of Patent: March 20, 2007Assignee: Schlumberger Technology CorporationInventors: Kuo Chiang Chen, Robert C. Smith, David T. Oliver, Gary A. Hazen, Dean M. Homan, Jan W. Smits
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Publication number: 20060119364Abstract: A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid thType: ApplicationFiled: January 17, 2006Publication date: June 8, 2006Inventors: Kuo Chen, Robert Smith, David Oliver, Gary Hazen, Dean Homan, Jan Smits
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Patent number: 7023212Abstract: A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid thType: GrantFiled: December 31, 2004Date of Patent: April 4, 2006Assignee: Schlumberger Technology CorporationInventors: Kuo Chiang Chen, Robert C. Smith, David T. Oliver, Gary A. Hazen, Dean M. Homan, Jan W. Smits
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Patent number: 6933726Abstract: A well logging tool includes a conductive mandrel; an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein; and a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel.Type: GrantFiled: August 5, 2003Date of Patent: August 23, 2005Assignee: Schlumberger Technology CorporationInventors: Kuo-Chiang Chen, Robert C. Smith, Gary A. Hazen, Charles Kibbe, Richard A. Rosthal, Thomas D. Barber, Stephen D. Bonner, David T. Oliver
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Publication number: 20050146334Abstract: A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid thType: ApplicationFiled: December 31, 2004Publication date: July 7, 2005Inventors: Kuo Chiang Chen, Robert Smith, David Oliver, Gary Hazen, Dean Homan, Jan Smits
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Patent number: 6898997Abstract: An apparatus for stripping an insulated wire includes a resistive heater element having a first end, a second end, and a coil formed between the first end and the second end. The coil has an inner diameter that is large enough to receive a section of the insulated wire. The apparatus further includes an electronic circuit connected to the first and second ends to deliver power to the resistive heater element such that the coil uniformly distributes heat about the section of the insulated wire to thermally decompose insulation on the section of insulated wire.Type: GrantFiled: May 20, 2003Date of Patent: May 31, 2005Assignee: Schlumberger Technology CorporationInventors: Richard W. Oldigs, Harry L. Vanscoder, Scott S. Chesser, Ricky Y. Torres, Gary A. Hazen
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Publication number: 20050030038Abstract: A well logging tool includes a conductive mandrel; an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein; and a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel.Type: ApplicationFiled: August 5, 2003Publication date: February 10, 2005Inventors: KUO-CHIANG CHEN, ROBERT SMITH, GARY HAZEN, CHARLES KIBBE, RICHARD ROSTHAL, THOMAS BARBER, STEPHEN BONNER, DAVID OLIVER
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Publication number: 20040231466Abstract: An apparatus for stripping an insulated wire includes a resistive heater element having a first end, a second end, and a coil formed between the first end and the second end. The coil has an inner diameter that is large enough to receive a section of the insulated wire. The apparatus further includes an electronic circuit connected to the first and second ends to deliver power to the resistive heater element such that the coil uniformly distributes heat about the section of the insulated wire to thermally decompose insulation on the section of insulated wire.Type: ApplicationFiled: May 20, 2003Publication date: November 25, 2004Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Richard W. Oldigs, Harry L. Vanscoder, Scott S. Chesser, Ricky Y. Torres, Gary A. Hazen
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Patent number: 6690170Abstract: The invention refers to antenna configurations for electromagnetic logging tools. The antennas have one or more electrical conductors disposed on a dielectric substrate wrapped around a core or disposed directly on the core. The conductor or conductors are arranged such that the antenna has a first magnetic dipole moment substantially perpendicular to a longitudinal axis of the core. The invention also refers to antennas adapted for mutual balancing using interleaved conductive paths or disks to alter the magnetic dipole moments to mutually balance the antenna system.Type: GrantFiled: March 29, 2002Date of Patent: February 10, 2004Assignee: Schlumberger Technology CorporationInventors: Dean M. Homan, Gary A. Hazen, Richard A. Rosthal, David L. Smith, Thomas D. Barber, Paul Michael Ray, Jacques R. Tabanou
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Publication number: 20030184304Abstract: The invention refers to antenna configurations for electromagnetic logging tools. The antennas have one or more electrical conductors disposed on a dielectric substrate wrapped around a core or disposed directly on the core. The conductor or conductors are arranged such that the antenna has a first magnetic dipole moment substantially perpendicular to a longitudinal axis of the core. The invention also refers to antennas adapted for mutual balancing using interleaved conductive paths or disks to alter the magnetic dipole moments to mutually balance the antenna system.Type: ApplicationFiled: March 29, 2002Publication date: October 2, 2003Inventors: Dean M. Homan, Gary A. Hazen, Richard A. Rosthal, David L. Smith, Thomas D. Barber, Paul Michael Ray, Jacques R. Tabanou
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Patent number: 6102115Abstract: This disclosure sets out an induction logging tool enclosed in a cylindrical shell between top and bottom located end connected subs of larger diameter. The ends are larger; they define a standoff distance above a specified minimum to enable operation in a well borehole without centralizers.Type: GrantFiled: January 23, 1998Date of Patent: August 15, 2000Assignee: Schlumberger Technology CorporationInventors: Gary A. Hazen, Stanley R. Thomas, R. David Mathison, Jr., James Joseph Walulik
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Patent number: 6002257Abstract: A method and apparatus for navigating a tool string down a subsurface borehole to its intended location while simultaneously measuring or sensing the borehole environment, electrically, acoustically, mechanically, or by nuclear means, for a characteristic parameter. The hole-finder apparatus incorporating a locally flexible body adapted for attachment to the tool string. As the tool string is navigated through the borehole, the flexible body provides extreme local flexibility to lessen the likelihood of jamming the tool string while tripping down the borehole by providing a lateral force at the obstruction. The hole-finder apparatus further including a sensor or probe measuring means attached to or within the tip of the flexible body for measuring the characteristic parameter.Type: GrantFiled: September 25, 1997Date of Patent: December 14, 1999Assignee: Schlumberger Technology CorporationInventors: Stanley R. Thomas, Gary A. Hazen
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Patent number: 4965522Abstract: A transmitter for an induction well logging tool, adapted to be disposed in the borehole of an oil well, develops an output signal for energizing the borehole formation which inherently consists of six separate signal components, the six components including four primary signal components which simultaneously energize the borehole formation inducing in the formation four primary eddy currents. These four primary eddy currents are detected by the array induction tool receiver, the received signals being used to determine the resistivity and conductivity of the borehole formation.Type: GrantFiled: November 9, 1988Date of Patent: October 23, 1990Assignee: Schlumberger Technology CorporationInventors: Gary A. Hazen, Don T. Macune
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Patent number: 4546315Abstract: A method and apparatus is disclosed for electrically measuring the inside diameter of a metallic pipe, such as oil or gas well casing. The transimpedance of two coaxial coils within the pipe is determined and then resolved into its inphase and quadrature components. The difference of the magnitudes of the two components is equal to an expansion equation which is a function of the inside diameter of the pipe and a factor proportional to the ratio of the permeability to the conductivity of the pipe. The inphase component of the impedance is equal to a second expansion equation which is a function of the inside diameter of the pipe and the factor proportional to the ratio of the permeability to the conductivity of the pipe. The two equations are solved simultaneously to generate signals for the pipe's inside diameter and the ratio of permeability to conductivity.Type: GrantFiled: December 13, 1982Date of Patent: October 8, 1985Assignee: Schlumberger Technology CorporationInventors: Gerald N. Minerbo, Gary A. Hazen