Patents by Inventor Leonty Tabarovsky
Leonty Tabarovsky 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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Publication number: 20210165125Abstract: A method for generating a petrophysical model of a reservoir includes: selecting a depositional environment; modeling a sedimentation process in the depositional environment to produce a pore-scale model of a rock matrix of the reservoir having a lithology and facies of sedimentary rock; validating the pore-scale model using a core sample and/or known geological information to provide a validated pore-scale model; modeling the reservoir with the validated pore-scale model saturated with one or more selected fluids; upscaling one or more physical properties of the validated pore-scale model saturated with the one or more selected fluids to dimensions at which at least one macro-scale property can be measured by a downhole tool to provide an upscaled model having one or more macro-scale properties; and validating the upscaled model using the at least one macro-scale property measured by the downhole tool to provide the petrophysical model of the reservoir.Type: ApplicationFiled: December 8, 2017Publication date: June 3, 2021Applicant: Baker Hughes, a GE company, LLCInventors: Leonty A. TABAROVSKY, Mikhail I. EPOV
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Publication number: 20210025238Abstract: A method for forming a wellbore in an earth formation includes positioning a drill string in a wellbore; the drill string including a bottom hole assembly (BHA) that includes a steering unit, one or more sensors responsive to one or more formation properties, and one or more sensors responsive to the current orientation of the BHA in a wellbore. The method also includes receiving information from the BHA related to the formation properties and information related to a current orientation of the BHA in the wellbore and processing the information using computing device that is either a programmable optical computing device or a quantum computing device. The computing device calculates the position of formation features with respect to current wellbore position in real time and compare the current position to a prescribed path.Type: ApplicationFiled: September 28, 2020Publication date: January 28, 2021Applicant: Baker Hughes, a GE company, LLCInventors: Rocco Difoggio, Hans-Martin Maurer, Leonty Tabarovsky
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Patent number: 10822878Abstract: A method for forming a wellbore in an earth formation includes positioning a drill string in a wellbore; the drill string including a bottom hole assembly (BHA) that includes a steering unit, one or more sensors responsive to one or more formation properties, and one or more sensors responsive to the current orientation of the BHA in a wellbore. The method also includes receiving information from the BHA related to the formation properties and information related to a current orientation of the BHA in the wellbore and processing the information using computing device that is either a programmable optical computing device or a quantum computing device. The computing device calculates the position of formation features with respect to current wellbore position in real time and compare the current position to a prescribed path.Type: GrantFiled: April 22, 2016Date of Patent: November 3, 2020Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Rocco Difoggio, Hans-Martin Maurer, Leonty Tabarovsky
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Patent number: 10495780Abstract: This disclosure describes a method, apparatus, and non-transitory computer-readable medium product for correcting a shale volume estimated from gamma ray information using a continuous radial profile of horizontal resistivity in the invaded zone and a continuous profile of anisotropy. The continuous radial profile of horizontal resistivity may be estimated by modeling a hydrodynamic evolution of the invaded zone (a) a step-wise radial profile of horizontal resistivity in the invaded zone as an initial estimate of horizontal resistivity in the invaded zone; (b) an estimated shallow resistivity at a borehole wall; and (c) an estimated horizontal conductance of the formation at an outer boundary of the borehole wall estimated from multi-component induction logging information.Type: GrantFiled: September 28, 2015Date of Patent: December 3, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Marina N. Nikitenko, Leonty Tabarovsky
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Publication number: 20170306743Abstract: A method for forming a wellbore in an earth formation includes positioning a drill string in a wellbore; the drill string including a bottom hole assembly (BHA) that includes a steering unit, one or more sensors responsive to one or more formation properties, and one or more sensors responsive to the current orientation of the BHA in a wellbore. The method also includes receiving information from the BHA related to the formation properties and information related to a current orientation of the BHA in the wellbore and processing the information using computing device that is either a programmable optical computing device or a quantum computing device. The computing device calculates the position of formation features with respect to current wellbore position in real time and compare the current position to a prescribed path.Type: ApplicationFiled: April 22, 2016Publication date: October 26, 2017Applicant: Baker Hughes IncorporatedInventors: Rocco Difoggio, Hans-Martin Maurer, Leonty Tabarovsky
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Publication number: 20170254924Abstract: This disclosure describes a method, apparatus, and non-transitory computer-readable medium product for correcting a shale volume estimated from gamma ray information using a continuous radial profile of horizontal resistivity in the invaded zone and a continuous profile of anisotropy. The continuous radial profile of horizontal resistivity may be estimated by modeling a hydrodynamic evolution of the invaded zone (a) a step-wise radial profile of horizontal resistivity in the invaded zone as an initial estimate of horizontal resistivity in the invaded zone; (b) an estimated shallow resistivity at a borehole wall; and (c) an estimated horizontal conductance of the formation at an outer boundary of the borehole wall estimated from multi-component induction logging information.Type: ApplicationFiled: September 28, 2015Publication date: September 7, 2017Applicant: BAKER HUGHES INCORPORATEDInventors: MARINA N. NIKITENKO, LEONTY TABAROVSKY
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Publication number: 20170254194Abstract: A deformable downhole article for use in a wellbore includes a tubular component configured for placement in a wellbore, a deformable material disposed around an outer surface of the tubular component, and an electrically conductive element comprising a carbon nanotube (CNT) material bonded to the deformable material. To form such a deformable downhole article, a deformable material is disposed around an outer surface of a tubular component, and an electrically conductive element comprising a carbon nanotube (CNT) material is bonded to the deformable material. In use, the deformable downhole article may be positioned within a wellbore, and the deformable material may be expanded to an expanded state. Expansion of the deformable material may strain the carbon nanotube (CNT) material of the electrically conductive element, and an electrical property of the electrically conductive element may be measured to deduce information about the state of the deformable material.Type: ApplicationFiled: September 15, 2016Publication date: September 7, 2017Inventors: Oleg A. Mazyar, Sankaran Murugesan, Valery N. Khabashesku, Darryl N. Ventura, Rostyslav Dolog, Leonty A. Tabarovsky
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Patent number: 9223047Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a carrier configured to be conveyed through the borehole and having a first transmitter electrode configured to inject electrical current into the formation and a first measurement electrode configured to receive electrical current for measurement due to the current injection in order to estimate the property of the earth formation. A controller is configured to determine a phase difference between injected electrical current and received electrical current. A first bucker amplifier is coupled to the first measurement electrode and configured to apply a voltage to the first measurement electrode based on the determined phase difference in order for a phase of current received by the first measurement electrode to be substantially in phase with the current injected by the first transmitter electrode.Type: GrantFiled: January 27, 2012Date of Patent: December 29, 2015Assignee: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Patent number: 8965702Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a plurality of electrodes disposed downhole and configured to inject an electrical current into the earth formation using an applied voltage and/or measure electrical current resulting from an injection of the electrical current. The apparatus also includes a processor configured to perform a series of formation measurements that include injecting current into the earth formation using a unique subset of electrodes in the plurality of electrodes and measuring current in the earth formation using one or more electrodes not used for the current injecting. The processer sums the measured currents for the electrodes wherein the sum of electrical currents for at least one electrode that measured electrical current is substantially in phase with the applied voltage; and uses the sum of in phase currents to estimate the property.Type: GrantFiled: January 27, 2012Date of Patent: February 24, 2015Assignee: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Patent number: 8965704Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole containing an oil-based drilling fluid. The apparatus includes an electrode disposed at a carrier and configured to inject alternating current into the formation. An electrically conductive plate is disposed between the first electrode and a borehole wall. An electrical insulator is disposed between and contacts the first electrode and the conductive plate. The apparatus is configured to prevent the drilling fluid from being disposed between the first electrode and the conductive plate. A first sensor is used to measure an electric field established between the first electrode and the conductive plate. A processor is configured to receive a measurement of the electric field to use as a floating reference signal to determine a phase difference with respect to a measured electrical quantity related to the injected electrical current in order to estimate the property.Type: GrantFiled: January 27, 2012Date of Patent: February 24, 2015Assignee: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Patent number: 8829909Abstract: A method and apparatus for steering a drilling assembly within a reservoir of an earth formation is disclosed. The drilling assembly is positioned within the reservoir between a conductive upper layer having a DC magnetic field and a conductive lower layer having a DC magnetic field. A sensor of the drilling assembly measures a magnetic field in the reservoir resulting from the DC magnetic field of the conductive upper layer and the DC magnetic field of the conductive lower layer. A processor uses the measured magnetic field to steer the drilling assembly within the reservoir.Type: GrantFiled: September 16, 2011Date of Patent: September 9, 2014Assignee: Baker Hughes IncorporatedInventor: Leonty A. Tabarovsky
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Patent number: 8786287Abstract: A logging tool for use in a borehole to obtain multicomponent resistivity induction measurements using collocated coils wherein each of the transverse antennas comprises a pair of mirror-image coils symmetrically disposed about an axis of the logging tool.Type: GrantFiled: March 3, 2010Date of Patent: July 22, 2014Assignee: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Yuliy A. Dashevsky, Tatyana F. Polozova
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Patent number: 8773135Abstract: A device, method and system for measuring characteristics of a geologic formation using a floating reference signal having a mud chamber, an electrode disposed within the mud chamber, and an electrically conductive plate disposed within the mud chamber, the plate separated from the electrode. An alternating current source is provided on the electrode, whereby an electric field is be maintained between the electrode and the conductive plate. An opening in the mud chamber allows drilling fluids to pass there through.Type: GrantFiled: November 30, 2011Date of Patent: July 8, 2014Assignee: Baker Hughes IncorporatedInventor: Leonty A. Tabarovsky
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Patent number: 8400158Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a carrier configured to be conveyed through the borehole. A first transmitter electrode and a second transmitter electrode are disposed at the carrier and configured to inject an electrical current into the earth formation. A first measurement electrode and a second measurement electrode are disposed at the carrier and configured to measure the electrical current to estimate the property of the earth formation. A first bucker amplifier is coupled to the first measurement electrode and a second bucker amplifier is coupled to the second measurement electrode, wherein the first and second bucker amplifiers are configured to equalize electrical potentials of areas in front of the first and second measurement electrodes.Type: GrantFiled: October 25, 2011Date of Patent: March 19, 2013Assignee: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Publication number: 20130030707Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole containing an oil-based drilling fluid. The apparatus includes an electrode disposed at a carrier and configured to inject alternating current into the formation. An electrically conductive plate is disposed between the first electrode and a borehole wall. An electrical insulator is disposed between and contacts the first electrode and the conductive plate. The apparatus is configured to prevent the drilling fluid from being disposed between the first electrode and the conductive plate. A first sensor is used to measure an electric field established between the first electrode and the conductive plate. A processor is configured to receive a measurement of the electric field to use as a floating reference signal to determine a phase difference with respect to a measured electrical quantity related to the injected electrical current in order to estimate the property.Type: ApplicationFiled: January 27, 2012Publication date: January 31, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Publication number: 20130027045Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a carrier configured to be conveyed through the borehole and having a first transmitter electrode configured to inject electrical current into the formation and a first measurement electrode configured to receive electrical current for measurement due to the current injection in order to estimate the property of the earth formation. A controller is configured to determine a phase difference between injected electrical current and received electrical current. A first bucker amplifier is coupled to the first measurement electrode and configured to apply a voltage to the first measurement electrode based on the determined phase difference in order for a phase of current received by the first measurement electrode to be substantially in phase with the current injected by the first transmitter electrode.Type: ApplicationFiled: January 27, 2012Publication date: January 31, 2013Applicant: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Publication number: 20130024119Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a plurality of electrodes disposed downhole and configured to inject an electrical current into the earth formation using an applied voltage and/or measure electrical current resulting from an injection of the electrical current. The apparatus also includes a processor configured to perform a series of formation measurements that include injecting current into the earth formation using a unique subset of electrodes in the plurality of electrodes and measuring current in the earth formation using one or more electrodes not used for the current injecting. The processer sums the measured currents for the electrodes wherein the sum of electrical currents for at least one electrode that measured electrical current is substantially in phase with the applied voltage; and uses the sum of in phase currents to estimate the property.Type: ApplicationFiled: January 27, 2012Publication date: January 24, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Publication number: 20120274329Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a carrier configured to be conveyed through the borehole. A first transmitter electrode and a second transmitter electrode are disposed at the carrier and configured to inject an electrical current into the earth formation. A first measurement electrode and a second measurement electrode are disposed at the carrier and configured to measure the electrical current to estimate the property of the earth formation. A first bucker amplifier is coupled to the first measurement electrode and a second bucker amplifier is coupled to the second measurement electrode, wherein the first and second bucker amplifiers are configured to equalize electrical potentials of areas in front of the first and second measurement electrodes.Type: ApplicationFiled: October 25, 2011Publication date: November 1, 2012Applicant: Baker Hughes IncorporatedInventors: Leonty A. Tabarovsky, Stanislav W. Forgang
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Publication number: 20120242342Abstract: A method and apparatus for estimating at least one parameter of interest in an earth formation using a signal from a receiver where a quadrature component of a signal at a plurality of frequencies is used to estimate a misalignment angle between the receiver and a transmitter. The apparatus may include at least one receiver, at least one transmitter, and at least one processor configured to excite the transmitter and estimate the misalignment angle. The method may include acquiring data at a plurality of frequencies, estimating a misalignment angle, and estimating at least one parameter of interest using the misalignment angle. The method may include performing multi-frequency focusing on the signal received at each of the plurality of frequencies.Type: ApplicationFiled: March 14, 2012Publication date: September 27, 2012Applicant: Baker Hughes IncorporatedInventors: Michael B. Rabinovich, Leonty A. Tabarovsky
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Patent number: 8203344Abstract: An apparatus, method and computer-readable medium for evaluating an earth formation are disclosed. The apparatus includes at least one coil on a logging tool conveyed in a borehole in the earth formation. Passage of a current through the coil induces an electrical current in the earth formation. At least two electrodes associated with the logging tool and in proximity to a wall of the borehole have a potential difference in response to the induced electrical current that is indicative of a property of the earth formation. The at least one coil may be mounted on a mandrel of a downhole assembly. The electrodes may be positioned on a first pad extendable from a mandrel of the downhole assembly.Type: GrantFiled: September 14, 2006Date of Patent: June 19, 2012Assignee: Baker Hughes IncorporatedInventors: Randy Gold, Rashid W. Khokhar, Alexandre N. Bespalov, Leonty A. Tabarovsky, Gregory B. Itskovich