Patents by Inventor Yuriy A. Nefedkin

Yuriy A. Nefedkin 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).

  • Method and apparatus for estimating formation permeability and electroacoustic constant of an electrolyte-saturated multi-layered rock taking into account osmosis
    Patent number: 8630146
    Abstract: An acoustic source on a logging tool is used to generate acoustic waves in a borehole. Acoustic detectors on the logging tool measure the generated acoustic waves. Electrodes on the logging tool are used to measure the potential resulting from the generated acoustic wave. The output of the hydrophones and the electrodes corresponding to Stoneley wave components of the acoustic wave are processed to provide an estimate of formation permeability, acoustoelectric constant, and a velocity of a propagating second compressional wave in the formation.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: January 14, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Vitaly N. Dorovsky, Yuriy A. Nefedkin, Alexander I. Fedorov, Maxim Y. Podberezhnyy, Yury V. Perepechko, Zarema Dubinsky
  • Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena
    Publication number: 20110261647
    Abstract: Measurements of acoustic velocities are made through a case borehole in the absence and presence of an applied magnetic field. A formation resistivity parameter may be estimated from differences in the acoustic velocities.
    Type: Application
    Filed: June 9, 2011
    Publication date: October 27, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Leonty A. Tabarovsky, Vitaly N. Dorovsky, Yuriy A. Nefedkin, Kholmatzhon Imomnazarov
  • Method and Apparatus for Estimating Formation Permeability and Electroacoustic Constant of an Electrolyte-Saturated Multi-Layered Rock Taking Into Account Osmosis
    Publication number: 20100254218
    Abstract: An acoustic source on a logging tool is used to generate acoustic waves in a borehole. Acoustic detectors on the logging tool measure the generated acoustic waves. Electrodes on the logging tool are used to measure the potential resulting from the generated acoustic wave. The output of the hydrophones and the electrodes corresponding to Stoneley wave components of the acoustic wave are processed to provide an estimate of formation permeability, acoustoelectric constant, and a velocity of a propagating second compressional wave in the formation.
    Type: Application
    Filed: March 26, 2010
    Publication date: October 7, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: Vitaly N. Dorovsky, Vladimir Dubinsky, Yuriy A. Nefedkin, Alexander I. Federov, Maxim Y. Podberezhnyy, Yury V. Perepechko, Zarema Dubinsky
  • Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena
    Publication number: 20100172211
    Abstract: Measurements of acoustic velocities are made through a case borehole in the absence and presence of an applied magnetic field. A formation resistivity parameter may be estimated from differences in the acoustic velocities.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: Leonty A. Tabarovsky, Vitaly N. Dorovsky, Yuriy A. Nefedkin, Kholmatzhon Imomnazarov
  • Resistivity measurement through metal casing using magnetic field and magnetoacoustic phenomena
    Patent number: 7710823
    Abstract: Measurements of acoustic velocities are made through a case borehole in the absence and presence of an applied magnetic field. A formation resistivity parameter may be estimated from differences in the acoustic velocities.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: May 4, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Leonty A. Tabarovsky, Vitaly N. Dorovsky, Yuriy A. Nefedkin, Kholmatzhon Imomnazarov
  • Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena
    Publication number: 20080247270
    Abstract: Measurements of acoustic velocities are made through a case borehole in the absence and presence of an applied magnetic field. A formation resistivity parameter may be estimated from differences in the acoustic velocities.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 9, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Leonty A. Tabarovsky, Vitaly N. Dorovsky, Yuriy A. Nefedkin, Kholmatzhon Imomnazarov