Patents by Inventor Stanislav Forgang

Stanislav Forgang 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).

  • Publication number: 20200174150
    Abstract: A system for performing downhole logging operations includes a power supply for providing a current and a conductor coil electrically coupled to receive the current from the power supply. The system further includes a switch electrically coupled to the power supply for controlling current provided to the conductor coil and enabling a pulse of current to be supplied to the conductor coil for an “on” duration and turning off current provided to the conductor coil for an “off” duration after the “on” duration, in which the “off” duration lasts longer than the “on” duration. The system also includes a permanent magnet coupled to the conductor coil. The conductor coil receives the pulse of current from the power supply during the “on” duration and not receiving current during the “off” duration. The pulse of current causes the permanent magnet to reverse polarity and generate a transient magnetic field.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 4, 2020
    Applicant: Baker Hughes, a GE Company, LLC
    Inventors: Stanislav Forgang, Babak Kouchmeshky, Sushant Dutta, Randy Gold
  • Publication number: 20190383131
    Abstract: An example method includes disposing a carrier in a borehole in an earth formation. The carrier includes a logging assembly for performing a formation evaluation of the earth formation using a sensor in proximity to a borehole wall of the borehole, fluid being disposed at least partially between the sensor and the borehole wall. The method further includes estimating an apparent dielectric loss angle of the fluid to determine a stand-off effect caused by the fluid. The method further includes estimating a formation dielectric loss angle and determining a formation resistance based at least in part on the formation dielectric loss angle. The method further includes adjusting the formation evaluation based at least in part on the estimated formation resistance that accounts for the stand-off effect caused by the fluid. The method further includes performing a wellbore operation based at least in part on the adjusted formation evaluation.
    Type: Application
    Filed: June 4, 2019
    Publication date: December 19, 2019
    Applicant: Baker Hughes, a GE company, LLC
    Inventors: Fei Le, Julio Roberto Arro, Stephen N. Dymmock, Stanislav Forgang, Hermanus J. Nieuwoudt
  • Patent number: 10436018
    Abstract: Systems, devices, and methods for estimating a value of a downhole parameter of interest. Aspects include an apparatus for evaluating a tubular. The apparatus may include a sensor including an electromagnetic acoustic transducer (EMAT) device configured to be conveyed into the tubular. The EMAT device may include measurement circuitry comprising at least one conductive coil; and a magnet array comprising magnets arranged with a corresponding direction of magnetization of each magnet oriented according to a configuration producing a greater magnetic flux on a first side of the array than on a second side opposing the first side. The magnetic flux produced from the second side may be substantially zero. In embodiments, the configuration of magnets comprises at least a first set of permanent magnets in a linear Halbach configuration.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 8, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Babak Kouchmeshky, Xiaochu Yao, Stanislav Forgang, Pawel J. Matuszyk, Marc S. Ramirez, Otto N. Fanini, Douglas J. Patterson, Vimal Shah
  • Publication number: 20180100387
    Abstract: Systems, devices, and methods for estimating a value of a downhole parameter of interest. Aspects include an apparatus for evaluating a tubular. The apparatus may include a sensor including an electromagnetic acoustic transducer (EMAT) device configured to be conveyed into the tubular. The EMAT device may include measurement circuitry comprising at least one conductive coil; and a magnet array comprising magnets arranged with a corresponding direction of magnetization of each magnet oriented according to a configuration producing a greater magnetic flux on a first side of the array than on a second side opposing the first side. The magnetic flux produced from the second side may be substantially zero. In embodiments, the configuration of magnets comprises at least a first set of permanent magnets in a linear Halbach configuration.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 12, 2018
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: BABAK KOUCHMESHKY, XIAOCHU YAO, STANISLAV FORGANG, PAWEL J. MATUSZYK, MARC S. RAMIREZ, OTTO N. FANINI, DOUGLAS J. PATTERSON, VIMAL SHAH
  • Patent number: 9746574
    Abstract: Methods and apparatus configured to evaluate a volume of interest of an earth formation intersected by a borehole. Apparatus comprise a transceiver electrode on the tool body configured to provide electrical current to the earth formation; a return electrode configured to receive the electrical current returning from the earth formation; a multi-function electrode on the resistivity imager tool; and an electrical system configured to provide current measurements at the transceiver electrode. In the first operational mode, the electrical system maintains the tool body at a first electrical potential, and maintains the multi-function electrode and the transceiver electrode at a second electrical potential; and in the second operational mode, the electrical system maintains the tool body at the first electrical potential, maintains the multi-function electrode at the first electrical potential, and maintains the transceiver electrode at the second potential.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 29, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Gregory B. Itskovich, Stanislav Forgang, Sven Krueger, Fei Le
  • Publication number: 20170212269
    Abstract: Methods and apparatus configured to evaluate a volume of interest of an earth formation intersected by a borehole. Apparatus comprise a transceiver electrode on the tool body configured to provide electrical current to the earth formation; a return electrode configured to receive the electrical current returning from the earth formation; a multi-function electrode on the resistivity imager tool; and an electrical system configured to provide current measurements at the transceiver electrode. In the first operational mode, the electrical system maintains the tool body at a first electrical potential, and maintains the multi-function electrode and the transceiver electrode at a second electrical potential; and in the second operational mode, the electrical system maintains the tool body at the first electrical potential, maintains the multi-function electrode at the first electrical potential, and maintains the transceiver electrode at the second potential.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 27, 2017
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gregory B. ITSKOVICH, STANISLAV FORGANG, SVEN KRUEGER, Fei Le
  • Patent number: 7855560
    Abstract: A method and system for measuring formation resisitivity is achieved by introducing an electrical signal into the formation. The current of the introduced electrical signal is then sensed, producing an analog voltage signal as a measurement of the formation. The introduced electrical signal is compared with the measured signal of the formation. The comparison is made in a quadrature demodulation device, producing an in-phase demodulated signal. A quasi-direct-current signal is extracted from the in-phase demodulated signal, producing an analog measurement related to the resistivity of the formation.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: December 21, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Jinsong Zhao, Stanislav Forgang
  • Publication number: 20090322337
    Abstract: A method and system for measuring formation resisitivity is achieved by introducing an electrical signal into the formation. The current of the introduced electrical signal is then sensed, producing an analog voltage signal as a measurement of the formation. The introduced electrical signal is compared with the measured signal of the formation. The comparison is made in a quadrature demodulation device, producing an in-phase demodulated signal. A quasi-direct-current signal is extracted from the in-phase demodulated signal, producing an analog measurement related to the resistivity of the formation.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Jinsong Zhao, Stanislav Forgang
  • Patent number: 7586309
    Abstract: A device for guiding energy in a subsurface electromagnetic measuring system is provided, the device including a transmitting member for transmitting an electromagnetic signal into a subsurface medium, an energy-guiding member disposed in magnetic communication with the electromagnetic signal, and a receiving member for receiving a return signal induced from the subsurface medium. A method of guiding energy in a subsurface measuring system is also provided, the method including transmitting an electromagnetic signal into a subsurface medium, modifying the electromagnetic signal using a magnetic field, and then receiving a modified return signal induced from the medium using a receiving member.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: September 8, 2009
    Assignee: Baker Hughes, Inc.
    Inventors: Stanislav Forgang, Randy Gold
  • Patent number: 7365545
    Abstract: A resistivity imaging device injects currents in two orthogonal directions using two pairs of return electrodes and performing impedance measurements of the buttons placed between the returns.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 29, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Gregory B. Itskovich, Randy Gold, Alexandre N. Bespalov, Stanislav Forgang
  • Publication number: 20080088313
    Abstract: An induction logging device is provided with additional electrodes. One set of electrodes provides voltages that are indicative of the current distribution in the borehole. The output of the first set of electrodes may be used for estimating formation resistivity. A second set of electrodes may be used to provide an image of the formation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: September 14, 2007
    Publication date: April 17, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Stanislav Forgang, Randy Gold, Otto Fanini, Michael Crosskno
  • Publication number: 20080074115
    Abstract: Misalignment of the transmitter and receiver antennas of an induction logging tool is determined by positioning the logging tool with a conducting loop magnetically coupled to the transmitter antenna and/or the receiver antenna, and activating the transmitter at a plurality of rotational angles. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 27, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Luis Pelegri, Stanislav Forgang
  • Publication number: 20080054906
    Abstract: Misalignment of the transmitter and receiver coils of an induction logging tool is determined by positioning the logging tool with a coil axially encompassing the transmitter coil and/or the receiver coil, and activating the transmitter at a plurality of rotational angles. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 6, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Luis Pelegri, Stanislav Forgang, Michael Crosskno
  • Publication number: 20070257679
    Abstract: An improved induction tool for formation resistivity evaluations. The tool provides electromagnetic transmitters and sensors suitable for transmitting and receiving magnetic fields in radial directions that are orthogonal to the tool's longitudinal axis with minimal susceptibility to errors associated with parasitic eddy currents induced in the metal components surrounding the transmitter and receiver coils. Various transmitter receiver combinations are provided to select sensitivity to a desired reservoir formation properties, for example, different orientations xy, xz, yz, 20-40, 20-90, and combinations, such as, Symmetric-symmetric; Asymmetric-symmetric; and Asymmetric-asymmetric. Measurements made with a multi-component logging instrument when used in a substantially horizontal, vertical or deviated borehole in earth formations are diagnostic of the direction of resistive beds relative to the position of the borehole.
    Type: Application
    Filed: July 19, 2007
    Publication date: November 8, 2007
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Otto Fanini, Stanislav Forgang, Berthold Kriegshauser, Liming Yu
  • Publication number: 20070205770
    Abstract: The present invention improves measurement of the formation induction response in the presence of the primary magnetic field generated by a logging tool's transmitter. A structure is provided having a new combination of electrical and mechanical design features which provide logging tool for internal calibration and checking of antenna performance and characteristics before during and after well logging operations.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 6, 2007
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Otto Fanini, Stanislav Forgang, Michael Crosskno
  • Publication number: 20070152671
    Abstract: A resistivity imaging device injects currents in two orthogonal directions using two pairs of return electrodes and performing impedance measurements of the buttons placed between the returns.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventors: Gregory Itskovich, Randy Gold, Alexandre Bespalov, Stanislav Forgang
  • Publication number: 20070103159
    Abstract: A logging tool used in a borehole having non-conductive mud. The tool includes a known inductance in series with an electrode. The quality factor of a circuit that includes the electrode, the inductance and the earth formation is indicative of the resistivity of the formation. The quality factor may be determined using either a plurality of signals or by measuring a transient response.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 10, 2007
    Applicant: Baker Hughes Incorporated
    Inventors: Stanislav Forgang, Gregory Itskovich, Randy Gold, Homero Castillo
  • Publication number: 20070090842
    Abstract: A device for guiding energy in a subsurface electromagnetic measuring system is provided, the device including a transmitting member for transmitting an electromagnetic signal into a subsurface medium, an energy-guiding member disposed in magnetic communication with the electromagnetic signal, and a receiving member for receiving a return signal induced from the subsurface medium. A method of guiding energy in a subsurface measuring system is also provided, the method including transmitting an electromagnetic signal into a subsurface medium, modifying the electromagnetic signal using a magnetic field, and then receiving a modified return signal induced from the medium using a receiving member.
    Type: Application
    Filed: October 21, 2005
    Publication date: April 26, 2007
    Inventors: Stanislav Forgang, Randy Gold
  • Publication number: 20070035306
    Abstract: The average current at a plurality of measure electrodes of a resistivity imaging tool is determined and subtracted from the individual measure currents to give a resistivity image with improved dynamic range.
    Type: Application
    Filed: August 10, 2005
    Publication date: February 15, 2007
    Inventors: Stanislav Forgang, Randy Gold
  • Publication number: 20060164092
    Abstract: Calibration of the arrays of a multicomponent induction logging tool is achieved by positioning the tool horizontally above ground. The upper and lower housings of the tool are connected by a borehole conductivity simulator which as a resistance comparable to that of a borehole. Axial and radial positioning of the transmitter coils is done by monitoring outputs at receiver coils to achieve a minimum.
    Type: Application
    Filed: March 8, 2006
    Publication date: July 27, 2006
    Inventors: Stanislav Forgang, Randy Gold, Luis Pelegri, Michael Crosskno