Patents by Inventor Stanislav Wilhelm Forgang
Stanislav Wilhelm 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).
-
Patent number: 11487040Abstract: A multi-frequency tuning circuit includes a first branch including a first inductor and a first capacitor arranged in series and a second branch including a second inductor and a second capacitor arranged in series. The circuit is arranged within a circuitry module configured to be positioned between a source and a load, the first branch and the second branch both associated with loads, from the source, having low impedance frequencies. In order to improve transmitter antenna output power for downhole tools, the tuning circuit creates high impedance at operating frequencies between frequencies corresponding to low impedance.Type: GrantFiled: June 29, 2020Date of Patent: November 1, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Yi Liu, Stanislav Wilhelm Forgang, John Jones, Carlos Rivero, Louis Perez, Fei Le, Babak Kouchmeshky, Yinxi Zhang
-
Patent number: 11476582Abstract: A system for downhole frequency re-tuning includes a receiver antenna, a receiver matching network, a transmitter antenna, the transmitter antenna outputting a signal that is received at the receiver antenna, a transmitter matching network, a power amplifier providing operational power to the transmitter antenna, and a frequency sweeping system. The frequency sweeping system includes an oscillator, coupled to the power amplifier, the oscillator providing an input signal to the power amplifier to adjust power output to the transmitter antenna. The system also includes a circulator, positioned between the power amplifier and the transmitter matching network, the circulator directing the operational power to the transmitter antenna. The system further includes a reflected power meter, coupled to the circulator, the reflected power meter receiving reflected power at the transmitter antenna responsive to receiver antenna. The system also includes a control module.Type: GrantFiled: June 29, 2020Date of Patent: October 18, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Stanislav Wilhelm Forgang, Yi Liu
-
Publication number: 20210408688Abstract: A system for downhole frequency re-tuning includes a receiver antenna, a receiver matching network, a transmitter antenna, the transmitter antenna outputting a signal that is received at the receiver antenna, a transmitter matching network, a power amplifier providing operational power to the transmitter antenna, and a frequency sweeping system. The frequency sweeping system includes an oscillator, coupled to the power amplifier, the oscillator providing an input signal to the power amplifier to adjust power output to the transmitter antenna. The system also includes a circulator, positioned between the power amplifier and the transmitter matching network, the circulator directing the operational power to the transmitter antenna. The system further includes a reflected power meter, coupled to the circulator, the reflected power meter receiving reflected power at the transmitter antenna responsive to receiver antenna. The system also includes a control module.Type: ApplicationFiled: June 29, 2020Publication date: December 30, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Stanislav Wilhelm FORGANG, Yi LIU
-
Publication number: 20210405239Abstract: A multi-frequency tuning circuit includes a first branch including a first inductor and a first capacitor arranged in series and a second branch including a second inductor and a second capacitor arranged in series. The circuit is arranged within a circuitry module configured to be positioned between a source and a load, the first branch and the second branch both associated with loads, from the source, having low impedance frequencies. In order to improve transmitter antenna output power for downhole tools, the tuning circuit creates high impedance at operating frequencies between frequencies corresponding to low impedance.Type: ApplicationFiled: June 29, 2020Publication date: December 30, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Yi LIU, Stanislav Wilhelm FORGANG, John JONES, Carlos RIVERO, Louis PEREZ, Fei LE, Babak KOUCHMESHKY, Yinxi ZHANG
-
Patent number: 10082594Abstract: Nuclear magnetic resonance apparatuses and methods for estimating properties of an earth formation are provided. An apparatus includes a carrier configured to be deployed in a borehole, at least one transmitting assembly configured to generate an oscillating magnetic field in a volume of interest within the earth formation, at least one receiving assembly configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest; and a magnet assembly configured to generate a static magnetic field in the formation from a primary side of the magnet assembly. The magnet assembly includes an array of longitudinally elongated magnets having a rotating pattern of magnetic orientations, the array configured to generate the static magnetic field in the volume of interest, and the static magnetic field strength is higher at the primary side than the field strength at a side of the magnet assembly that is opposite the primary side.Type: GrantFiled: April 7, 2015Date of Patent: September 25, 2018Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Marc Stephen Ramirez, Stanislav Wilhelm Forgang, Babak Kouchmeshky
-
Publication number: 20160299249Abstract: Nuclear magnetic resonance apparatuses and methods for estimating properties of an earth formation are provided. An apparatus includes a carrier configured to be deployed in a borehole, at least one transmitting assembly configured to generate an oscillating magnetic field in a volume of interest within the earth formation, at least one receiving assembly configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest; and a magnet assembly configured to generate a static magnetic field in the formation from a primary side of the magnet assembly. The magnet assembly includes an array of longitudinally elongated magnets having a rotating pattern of magnetic orientations, the array configured to generate the static magnetic field in the volume of interest, and the static magnetic field strength is higher at the primary side than the field strength at a side of the magnet assembly that is opposite the primary side.Type: ApplicationFiled: April 7, 2015Publication date: October 13, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Marc Stephen Ramirez, Stanislav Wilhelm Forgang
-
Patent number: 8972193Abstract: A method of estimating a parameter of a formation contacting a borehole with an instrument that includes a mandrel and a pad includes providing a measurement voltage to the pad; applying a biasing voltage to the mandrel while the measurement voltage is applied to the pad; measuring a received current during at least a portion of time the measurement voltage is provided; and estimating the parameter based on the received current.Type: GrantFiled: March 5, 2012Date of Patent: March 3, 2015Assignee: Baker Hughes IncorporatedInventors: Gregory B. Itskovich, Stanislav Wilhelm Forgang, Assol Kavtorina
-
Publication number: 20140192621Abstract: A method of synchronization between downhole components includes: generating a dual tone synchronization signal by a signal generator in a first downhole component disposed in a borehole in an earth formation, the dual tone signal including a first constituent periodic signal having a first frequency f1 and a second constituent periodic signal having a second frequency f2 that is different from the first frequency; transmitting the synchronization signal to a second downhole component disposed in the borehole; receiving the synchronization signal by a signal processor in the second downhole component, calculating a phase difference between the first constituent signal and the second constituent signal, and calculating a transmission delay based on the phase difference; and synchronizing operation of the first and second downhole components based on the delay.Type: ApplicationFiled: January 7, 2013Publication date: July 10, 2014Applicant: Baker Hughes IncorporatedInventors: Shobha Sundar Ram, Steven A. Morris, Stanislav Wilhelm Forgang
-
Patent number: 8614579Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole having a substantially non-conducting liquid. The apparatus includes: a downhole tool having a transmitter electrode configured to convey an electric current into the earth formation. A measurement electrode is configured to receive the electric current from the earth formation, wherein the electric current bridges as least one of a first gap between the transmitter electrode and the formation and a second gap between the measurement electrode and the formation. A compensating circuit coupling the transmitter electrode to the measurement electrode is configured to reduce a reactive component of a total current received by the measurement electrode. A receiver coupled to the measurement electrode is configured to measure the total current to estimate the property.Type: GrantFiled: July 20, 2011Date of Patent: December 24, 2013Assignee: Baker Hughes IncorporatedInventors: Stanislav Wilhelm Forgang, Randy Gold
-
Patent number: 8405397Abstract: An apparatus and method for reducing an electric current leakage in a logging tool, particularly relating to reducing electric current leakage by altering a phase difference between a biasing element and an electric current produced by a first power source. The apparatus may include one or more measure electrodes for imparting electric current into a formation, a current meter, at least one current return electrode, a controller, and a biasing element. The method includes adjusting a phase angle difference between the current leaving the measure electrode and a biasing signal applied to the biasing element from a second power source to reduce the current leakage of the apparatus.Type: GrantFiled: March 14, 2011Date of Patent: March 26, 2013Assignee: Baker Hughes IncorporatedInventors: Randy Gold, Stanislav Wilhelm Forgang
-
Publication number: 20130024120Abstract: A method of estimating a parameter of a formation contacting a borehole with an instrument that includes a mandrel and a pad includes providing a measurement voltage to the pad; applying a biasing voltage to the mandrel while the measurement voltage is applied to the pad; measuring a received current during at least a portion of time the measurement voltage is provided; and estimating the parameter based on the received current.Type: ApplicationFiled: March 5, 2012Publication date: January 24, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Gregory B. Itskovich, Stanislav Wilhelm Forgang, Assol Kavtorina
-
Patent number: 8301384Abstract: A method for correcting a measurement of a property of a subsurface material includes: selecting an instrument that includes a test circuit and a separate sensor, the test circuit configured for providing a standard for referencing to generate correction information, the sensor configured for: transmitting an electric signal into the subsurface material; and receiving a data signal from the subsurface material; wherein the test circuit and the sensor are switchably coupled to an electronics unit of the instrument; receiving the electric signal from the test circuit in the electronics unit; using the electronics unit, measuring at least one output characteristic of the instrument; and applying the correction information to the data signal according to the measured output characteristic.Type: GrantFiled: August 5, 2010Date of Patent: October 30, 2012Assignee: Baker Hughes IncorporatedInventors: Stanislav Wilhelm Forgang, Randy Gold, Zhiyong Jiang, Carlos A. Yanzig
-
Patent number: 8299797Abstract: A method and apparatus for evaluating an earth formation penetrated by a borehole comprises taking resistivity measurements using a plurality of resistivity arrays or pads positioned within the borehole proximal the borehole wall. In one embodiment, pads are spaced apart azimuthally around the perimeter of a tool body, each pad carrying at least one electrode thereon. A sequence of resistivity measurement operations are performed involving sequentially operating each pad, in turn, as a transmitter, with remaining pads and electrodes operated as return electrodes. The sequence preferably involves a succession of adjacent pads around the perimeter of the tool body, resulting in a full rotational (360°) imaging of the formation penetrated by the borehole. In one embodiment, the pads include at least two electrodes spaced vertically apart from one another, such that helical current paths are defined between transmitting electrodes and return electrodes.Type: GrantFiled: July 30, 2009Date of Patent: October 30, 2012Assignee: Baker Hughes IncorporatedInventors: Stanislav Wilhelm Forgang, Randy Gold
-
Publication number: 20120074946Abstract: Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole having a substantially non-conducting liquid. The apparatus includes: a downhole tool having a transmitter electrode configured to convey an electric current into the earth formation. A measurement electrode is configured to receive the electric current from the earth formation, wherein the electric current bridges as least one of a first gap between the transmitter electrode and the formation and a second gap between the measurement electrode and the formation. A compensating circuit coupling the transmitter electrode to the measurement electrode is configured to reduce a reactive component of a total current received by the measurement electrode. A receiver coupled to the measurement electrode is configured to measure the total current to estimate the property.Type: ApplicationFiled: July 20, 2011Publication date: March 29, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Stanislav Wilhelm Forgang, Randy Gold
-
Patent number: 8089277Abstract: Embodiments of conductive polymers and instruments using the conductive polymers in geophysical exploration are provided. Methods for fabrication are included.Type: GrantFiled: May 15, 2008Date of Patent: January 3, 2012Assignee: Baker Hughes IncorporatedInventors: Stanislav Wilhelm Forgang, Rocco DiFoggio
-
Publication number: 20110227580Abstract: An apparatus and method for reducing an electric current leakage in a logging tool, particularly relating to reducing electric current leakage by altering a phase difference between a biasing element and an electric current produced by a first power source. The apparatus may include one or more measure electrodes for imparting electric current into a formation, a current meter, at least one current return electrode, a controller, and a biasing element. The method includes adjusting a phase angle difference between the current leaving the measure electrode and a biasing signal applied to the biasing element from a second power source to reduce the current leakage of the apparatus.Type: ApplicationFiled: March 14, 2011Publication date: September 22, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Randy Gold, Stanislav Wilhelm Forgang
-
Publication number: 20110035153Abstract: A method for correcting a measurement of a property of a subsurface material includes: selecting an instrument that includes a test circuit and a separate sensor, the test circuit configured for providing a standard for referencing to generate correction information, the sensor configured for: transmitting an electric signal into the subsurface material; and receiving a data signal from the subsurface material; wherein the test circuit and the sensor are switchably coupled to an electronics unit of the instrument; receiving the electric signal from the test circuit in the electronics unit; using the electronics unit, measuring at least one output characteristic of the instrument; and applying the correction information to the data signal according to the measured output characteristic.Type: ApplicationFiled: August 5, 2010Publication date: February 10, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: Stanislav Wilhelm Forgang, Randy Gold, Zhiyong Jiang, Carlos A. Yanzig
-
Publication number: 20110025336Abstract: A method and apparatus for evaluating an earth formation penetrated by a borehole comprises taking resistivity measurements using a plurality of resistivity arrays or pads positioned within the borehole proximal the borehole wall. In one embodiment, pads are spaced apart azimuthally around the perimeter of a tool body, each pad carrying at least one electrode thereon. A sequence of resistivity measurement operations are performed involving sequentially operating each pad, in turn, as a transmitter, with remaining pads and electrodes operated as return electrodes. The sequence preferably involves a succession of adjacent pads around the perimeter of the tool body, resulting in a full rotational (360°) imaging of the formation penetrated by the borehole. In one embodiment, the pads include at least two electrodes spaced vertically apart from one another, such that helical current paths are defined between transmitting electrodes and return electrodes.Type: ApplicationFiled: July 30, 2009Publication date: February 3, 2011Inventors: Stanislav Wilhelm Forgang, Randy Gold
-
Patent number: 7797111Abstract: A method for correcting a measurement of a property of a subsurface material includes: selecting an instrument that includes a test circuit and a separate sensor, the sensor adapted for transmitting an electric signal into the subsurface material and receiving a data signal from the subsurface material, wherein the test circuit and the sensor are switchably coupled to an electronics unit of the instrument; receiving the electric signal from the test circuit in the electronics unit; using the electronics unit, measuring at least one output characteristic of the instrument; and applying a correction to the data signal according to the measured output characteristic. An instrument and an additional method are provided.Type: GrantFiled: November 29, 2007Date of Patent: September 14, 2010Assignee: Baker Hughes IncorporatedInventors: Stanislav Wilhelm Forgang, Randy Gold, Zhiyong Jiang, Carlos A. Yanzig
-
Patent number: 7689363Abstract: A resistivity imaging apparatus includes: a first sensor electrode disposed on an electrode pad and positioned at a first standoff; a second sensor electrode disposed on the electrode pad and adjacent the first sensor electrode, the second sensor electrode positioned at a second standoff; and a return electrode disposed on the electrode pad, wherein the sensor electrodes and the return electrode are configured for injecting current into a formation and receiving a signal from the formation. Other embodiments, methods and computer program products are disclosed.Type: GrantFiled: May 15, 2007Date of Patent: March 30, 2010Assignee: Baker Hughes IncorporatedInventors: Gregory B. Itskovich, Stanislav Wilhelm Forgang, Alexandre N. Bespalov