Patents by Inventor Scott S. Chesser
Scott S. Chesser 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: 7812608Abstract: An electromagnetic logging tool is disclosed that includes a support; and at least one four-coil array disposed on the support, wherein the at least one four-coil array comprises: a transmitter, a bucking coil, a receiver, and a trim coil. A method for balancing an induction array is disclosed that includes applying an alternating current to a transmitter of the induction array that comprises the transmitter, a bucking coil and a receiver; measuring a mutual coupling between the transmitter and the receiver; and adding an extra bucking coil, if the mutual coupling exceeds a selected criterion.Type: GrantFiled: September 18, 2009Date of Patent: October 12, 2010Assignee: Schlumberger Technology CorporationInventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingjing Karen Sun, William B. Vandermeer, Richard D. Ward
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Patent number: 7679366Abstract: An electromagnetic logging tool includes a support configured for disposal in a well; at least one antenna mounted on the support; and a plurality of coils mounted on the support proximate the at least one antenna, wherein the plurality of the coils are configured for selective connection with the at least one antenna. A methods for balancing an induction array on an electromagnetic logging tool includes measuring a mutual coupling between a transmitter and a receiver on the electromagnetic logging tool; and selectively connecting a subset of a plurality of coils on the electromagnetic logging tool to the transmitter or the receiver based on the measured mutual coupling.Type: GrantFiled: July 23, 2008Date of Patent: March 16, 2010Assignee: Schlumberger Technology CorporationInventors: Scott S. Chesser, Richard D. Ward, Bulent Finci, Andrei I. Davydychev, William B. Vandermeer, John F. Hunka
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Patent number: 7671597Abstract: A composite encased tool for making subsurface measurements in a borehole traversing a subsurface formation includes a conductive mandrel, a first composite layer wrapped around the conductive mandrel, the first composite layer having one or more slots, a source or sensor disposed in each of the one or more slots, and a second composite layer wrapped around the first composite layer with the source or sensor in the one or more slots.Type: GrantFiled: May 23, 2006Date of Patent: March 2, 2010Assignee: Schlumberger Technology CorporationInventors: Bulent Finci, Scott S. Chesser, Jingjing (Karen) Sun, Denis Lebreton, Richard D. Ward, Andrei I. Davydychev, William B. Vandermeer, John F. Hunka
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Publication number: 20100026280Abstract: An electromagnetic logging tool is disclosed that includes a support; and at least one four-coil array disposed on the support, wherein the at least one four-coil array comprises: a transmitter, a bucking coil, a receiver, and a trim coil. A method for balancing an induction array is disclosed that includes applying an alternating current to a transmitter of the induction array that comprises the transmitter, a bucking coil and a receiver; measuring a mutual coupling between the transmitter and the receiver; and adding an extra bucking coil, if the mutual coupling exceeds a selected criterion.Type: ApplicationFiled: September 18, 2009Publication date: February 4, 2010Applicant: Schlumberger Technology CorporationInventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingling Karen Sun, William B. Vandermeer, Richard D. Ward
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Patent number: 7501829Abstract: An electromagnetic logging that includes a support; and at least one four-coil array disposed on the support, wherein the at least one four-coil array comprises: a transmitter, a bucking coil, a receiver, and a trim coil. A method for balancing an induction array includes applying an alternating current to a transmitter of the induction array that comprises the transmitter, a bucking coil and a receiver; measuring a mutual coupling between the transmitter and the receiver; and adding an extra bucking coil, if the mutual coupling exceeds a selected criterion.Type: GrantFiled: February 16, 2006Date of Patent: March 10, 2009Assignee: Schlumberger Technology CorporationInventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingjing (Karen) Sun, William B. Vandermeer, Richard D. Ward
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Publication number: 20080278170Abstract: An electromagnetic logging tool includes a support configured for disposal in a well; at least one antenna mounted on the support; and a plurality of coils mounted on the support proximate the at least one antenna, wherein the plurality of the coils are configured for selective connection with the at least one antenna. A methods for balancing an induction array on an electromagnetic logging tool includes measuring a mutual coupling between a transmitter and a receiver on the electromagnetic logging tool; and selectively connecting a subset of a plurality of coils on the electromagnetic logging tool to the transmitter or the receiver based on the measured mutual coupling.Type: ApplicationFiled: July 23, 2008Publication date: November 13, 2008Applicant: Schlumberger Technology CorporationInventors: Scott S. Chesser, Richard D. Ward, Bulent Finci, Andrei I. Davydychev, William B. Vandermeer, John F. Hunka
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Publication number: 20080278147Abstract: An electromagnetic logging tool is disclosed that includes a support; and at least one four-coil array disposed on the support, wherein the at least one four-coil array comprises: a transmitter, a bucking coil, a receiver, and a trim coil. A method for balancing an induction array is disclosed that includes applying an alternating current to a transmitter of the induction array that comprises the transmitter, a bucking coil and a receiver; measuring a mutual coupling between the transmitter and the receiver; and adding an extra bucking coil, if the mutual coupling exceeds a selected criterion.Type: ApplicationFiled: July 30, 2008Publication date: November 13, 2008Applicant: Schlumberger Technology CorporationInventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingjing Karen Sun, William B. Vandermeer, Richard D. Ward
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Patent number: 7417436Abstract: An electromagnetic logging tool includes a support configured for disposal in a well; at least one antenna mounted on the support; and a plurality of coils mounted on the support proximate the at least one antenna, wherein the plurality of the coils are configured for selective connection with the at least one antenna. A method for balancing an induction array on an electromagnetic logging tool includes measuring a mutual coupling between a transmitter and a receiver on the electromagnetic logging tool; and selectively connecting a subset of a plurality of coils on the electromagnetic logging tool to the transmitter or the receiver based on the measured mutual coupling.Type: GrantFiled: February 16, 2006Date of Patent: August 26, 2008Assignee: Schlumberger Technology CorporationInventors: Scott S. Chesser, Richard D. Ward, Bulent Finci, Andrei I. Davydychev, William B. Vandermeer, John F. Hunka
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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: 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: 6557794Abstract: A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.Type: GrantFiled: August 17, 2001Date of Patent: May 6, 2003Assignee: Schlumberger Technology CorporationInventors: Richard A. Rosthal, Dean M. Homan, Dzevat Omeragic, Stephen D. Bonner, Brian Clark, Scott S. Chesser, Thomas D. Barber
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Patent number: 6380744Abstract: A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.Type: GrantFiled: August 17, 2001Date of Patent: April 30, 2002Assignee: Schlumberger Technology CorporationInventors: Brian Clark, Richard A. Rosthal, Dean M. Homan, Dzevat Omeragic, Stephen D. Bonner, Scott S. Chesser, Thomas D. Barber
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Patent number: 6351127Abstract: A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.Type: GrantFiled: December 1, 1999Date of Patent: February 26, 2002Assignee: Schlumberger Technology CorporationInventors: Richard A. Rosthal, Dean M. Homan, Dzevat Omeragic, Stephen D. Bonner, Brian Clark, Scott S. Chesser, Thomas D. Barber
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Publication number: 20020008521Abstract: A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.Type: ApplicationFiled: August 17, 2001Publication date: January 24, 2002Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Brian Clark, Richard A. Rosthal, Dean M. Homan, Dzevat Omeragic, Stephen D. Bonner, Scott S. Chesser, Thomas D. Barber
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Publication number: 20020008520Abstract: A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.Type: ApplicationFiled: August 17, 2001Publication date: January 24, 2002Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Brian Clark, Richard A. Rosthal, Dean M. Homan, Dzevat Omeragic, Stephen D. Bonner, Scott S. Chesser, Thomas D. Barber
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Patent number: 6297639Abstract: Methods and apparatus for making directional measurements of earth formations surrounding a borehole. New antenna coil shield designs are utilized to provide selective attenuation of at least one electromagnetic energy field component as the component interacts with the shield. The new shields are implemented in several downhole tool configurations to provide azimuthally focused formation measurements. In effect, the new shield filters interacting electromagnetic energy field components to pass those components corresponding to a magnetic dipole oriented at an angle from the tool axis. The shields thereby alter a coil's envelope of influence to electromagnetic energy. The new shields also form part of a system for making directional measurements while drilling.Type: GrantFiled: December 1, 1999Date of Patent: October 2, 2001Assignee: Schlumberger Technology CorporationInventors: Brian Clark, Richard A. Rosthal, Dean M. Homan, Dzevat Omeragic, Stephen D. Bonner, Scott S. Chesser, Thomas D. Barber