Patents by Inventor Jean-Christophe Auchere
Jean-Christophe Auchere 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: 11808143Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to measure a formation feature. An example apparatus includes a pre-processor to compare a first measurement obtained from a first sensor included in a logging tool at a first depth at a first time and a second measurement obtained from a second sensor included in the logging tool at the first depth at a second time. The example apparatus also include a semblance calculator to: calculate a correction factor based on a difference between the first measurement and the second measurement; and calculate a third measurement based on the correction factor and a fourth measurement obtained from the first sensor at a second depth at the second time. The example apparatus also includes a report generator to generate a report including the third measurement.Type: GrantFiled: April 27, 2022Date of Patent: November 7, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jean-Christophe Auchere, Hiroshi Hori, Adam Pedrycz, Bharat Narasimhan
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Patent number: 11526977Abstract: The disclosure relates to a method and system for downhole processing of data, such as images, including using a set of downhole sensors to measure parameters relative to the borehole at a plurality of depths and azimuths and detecting predetermined features of the borehole, using a downhole processor, with a trained machine-learning model and extracting characterization data, characterizing the shape and position of the predetermined features that are transmitted to the surface. It also provides a method and system for providing an image of a geological formation at the surface including transmitting a first dataset to the surface that will be used for reconstructing an image at the surface, downhole processing of a second dataset to detect predetermined features and extract characterization data that are transmitted at the surface and displaying a combined image comprising the predetermined features overlaid on the first image.Type: GrantFiled: May 7, 2020Date of Patent: December 13, 2022Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Carlos Maeso, Daniel Quesada, Ana Escobar, Youssef Tamaazousti, Josselin Kherroubi, Jean-Christophe Auchere
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Publication number: 20220251946Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to measure a formation feature. An example apparatus includes a pre-processor to compare a first measurement obtained from a first sensor included in a logging tool at a first depth at a first time and a second measurement obtained from a second sensor included in the logging tool at the first depth at a second time. The example apparatus also include a semblance calculator to: calculate a correction factor based on a difference between the first measurement and the second measurement; and calculate a third measurement based on the correction factor and a fourth measurement obtained from the first sensor at a second depth at the second time. The example apparatus also includes a report generator to generate a report including the third measurement.Type: ApplicationFiled: April 27, 2022Publication date: August 11, 2022Inventors: Jean-Christophe Auchere, Hiroshi Hori, Adam Pedrycz, Bharat Narasimhan
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Patent number: 11346213Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to measure a formation feature. An example apparatus includes a pre-processor to compare a first measurement obtained from a first sensor included in a logging tool at a first depth at a first time and a second measurement obtained from a second sensor included in the logging tool at the first depth at a second time. The example apparatus also include a semblance calculator to: calculate a correction factor based on a difference between the first measurement and the second measurement; and calculate a third measurement based on the correction factor and a fourth measurement obtained from the first sensor at a second depth at the second time. The example apparatus also includes a report generator to generate a report including the third measurement.Type: GrantFiled: May 14, 2019Date of Patent: May 31, 2022Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jean-Christophe Auchere, Hiroshi Hori, Adam Pedrycz, Bharat Narasimhan
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Publication number: 20210192712Abstract: The disclosure relates to a method and system for downhole processing of data, such as images, including using a set of downhole sensors to measure parameters relative to the borehole at a plurality of depths and azimuths and detecting predetermined features of the borehole, using a downhole processor, with a trained machine-learning model and extracting characterization data, characterizing the shape and position of the predetermined features that are transmitted to the surface. It also provides a method and system for providing an image of a geological formation at the surface including transmitting a first dataset to the surface that will be used for reconstructing an image at the surface, downhole processing of a second dataset to detect predetermined features and extract characterization data that are transmitted at the surface and displaying a combined image comprising the predetermined features overlaid on the first image.Type: ApplicationFiled: May 7, 2020Publication date: June 24, 2021Inventors: Carlos Maeso, Daniel Quesada, Ana Escobar, Youssef Tamaazousti, Josselin Kherroubi, Jean-Christophe Auchere
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Patent number: 11022711Abstract: Methods for correcting eccentering effects on echoes detected from ultrasonic pulses emitted by a transducer of a downhole tool. Echo envelope amplitude, azimuth, and location for each echo is utilized to assess echo amplitude sensitivity to geometric and spatial characteristics of the downhole tool within the wellbore. Echo envelope amplitudes are corrected for eccentering effects based on the assessed sensitivity. A visual representation of the corrected echo envelope amplitudes is the generated. Also disclosed herein are tangible, non-transient, computer-readable media comprising instructions executable by a processor to carry out the methods, as well as systems including downhole tools and processing devices operable to carry out the methods.Type: GrantFiled: August 30, 2018Date of Patent: June 1, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Adam Pedrycz, Hiroshi Hori, Jean-Christophe Auchere
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Patent number: 10884151Abstract: Apparatus and methods for identifying drilling cuttings downhole by extracting an echo from a pulse-echo waveform acquired utilizing a downhole ultrasonic tool having an acoustic device. An energy before echo profile preceding the extracted echo is determined, and then the energy before echo profile is processed to remove effects associated with the acoustic device. A cutting is then identified from the processed energy before echo profile.Type: GrantFiled: January 22, 2018Date of Patent: January 5, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Adam Pedrycz, Hiroshi Hori, Jean-Christophe Auchere
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Patent number: 10838097Abstract: Methods and apparatus pertaining to determining shape and size of a borehole at a depth within a subterranean formation using ultrasonic measurements obtained by a downhole tool at four different azimuthal locations corresponding to four mutually orthogonal directions extending radially from a central axis of the downhole tool. The measurements are indicative of a distance between a wall of the borehole and the downhole tool at each azimuthal location. The borehole shape and size are determined by estimating an ellipse approximating the borehole shape and size using the ultrasonic measurements.Type: GrantFiled: May 4, 2018Date of Patent: November 17, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hadrien Dollfus, Henri-Pierre Valero, Jean-Christophe Auchere
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Patent number: 10663611Abstract: Methods and systems of measuring acoustic signals via a borehole wall are disclosed. One or more non-contact magneto-dynamic sensors are configured or designed for deployment at at least one depth in a borehole. The magneto-dynamic sensor comprises a coil excited by an electric current and a circuitry for outputting a signal corresponding to a time-varying impedance of the coil. A processor is configured to perform signal processing for deriving at least one of a magnitude or a frequency of vibration of the borehole wall based on the output signal from the circuitry.Type: GrantFiled: January 15, 2016Date of Patent: May 26, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jean-Christophe Auchere, Henri-Pierre Valero, Remi Ounadjela, Hiroshi Nakajima, Alexis Pibrac
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Publication number: 20200072999Abstract: Methods for correcting eccentering effects on echoes detected from ultrasonic pulses emitted by a transducer of a downhole tool. Echo envelope amplitude, azimuth, and location for each echo is utilized to assess echo amplitude sensitivity to geometric and spatial characteristics of the downhole tool within the wellbore. Echo envelope amplitudes are corrected for eccentering effects based on the assessed sensitivity. A visual representation of the corrected echo envelope amplitudes is the generated. Also disclosed herein are tangible, non-transient, computer-readable media comprising instructions executable by a processor to carry out the methods, as well as systems including downhole tools and processing devices operable to carry out the methods.Type: ApplicationFiled: August 30, 2018Publication date: March 5, 2020Inventors: Adam Pedrycz, Hiroshi Hori, Jean-Christophe Auchere
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Patent number: 10544668Abstract: A technique facilitates use of acoustic measurements to enable geo-steering during a well operation. A steerable well string is provided with acoustic systems used to collect data which is then processed to determine geo-steering inputs. In some applications, the well string may comprise a coiled tubing drilling tool. The coiled tubing drilling tool or other well string tool is combined with an azimuthally distributed pitch-catch micro-sonic sensor system and an azimuthally distributed ultrasonic pulse-echo transducer system. Data from these two systems is provided to a processing system which processes the data to determine, for example, real-time, geo-steering inputs. These inputs may then be used to more effectively steer the coiled tubing drilling tool or other well string tool.Type: GrantFiled: April 28, 2017Date of Patent: January 28, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hiroshi Hori, Takeshi Endo, Evgeniya Deger, Naoki Sakiyama, Hiroshi Nakajima, Jean-Christophe Auchere, Henri-Pierre Valero
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Publication number: 20190345816Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to measure a formation feature. An example apparatus includes a pre-processor to compare a first measurement obtained from a first sensor included in a logging tool at a first depth at a first time and a second measurement obtained from a second sensor included in the logging tool at the first depth at a second time. The example apparatus also include a semblance calculator to: calculate a correction factor based on a difference between the first measurement and the second measurement; and calculate a third measurement based on the correction factor and a fourth measurement obtained from the first sensor at a second depth at the second time. The example apparatus also includes a report generator to generate a report including the third measurement.Type: ApplicationFiled: May 14, 2019Publication date: November 14, 2019Inventors: Jean-Christophe Auchere, Hiroshi Hori, Adam Pedrycz, Bharat Narasimhan
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Publication number: 20190339411Abstract: Methods and apparatus pertaining to determining shape and size of a borehole at a depth within a subterranean formation using ultrasonic measurements obtained by a downhole tool at four different azimuthal locations corresponding to four mutually orthogonal directions extending radially from a central axis of the downhole tool. The measurements are indicative of a distance between a wall of the borehole and the downhole tool at each azimuthal location. The borehole shape and size are determined by estimating an ellipse approximating the borehole shape and size using the ultrasonic measurements.Type: ApplicationFiled: May 4, 2018Publication date: November 7, 2019Inventors: Hadrien Dollfus, Henri-Pierre Valero, Jean-Christophe Auchere
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Publication number: 20190226323Abstract: Apparatus and methods for identifying drilling cuttings downhole by extracting an echo from a pulse-echo waveform acquired utilizing a downhole ultrasonic tool having an acoustic device. An energy before echo profile preceding the extracted echo is determined, and then the energy before echo profile is processed to remove effects associated with the acoustic device. A cutting is then identified from the processed energy before echo profile.Type: ApplicationFiled: January 22, 2018Publication date: July 25, 2019Inventors: Adam Pedrycz, Hiroshi Hori, Jean-Christophe Auchere
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Patent number: 10359531Abstract: A technique facilitates monitoring of acoustic signals to measure a velocity vector of a borehole. Acoustic sensors are arranged in a desired acoustic sensor array and positioned along a body of a tool, e.g. a sonic logging tool. The acoustic sensor array is then positioned in fluid along a wall of a borehole formed in a subterranean formation. The acoustic sensors are used to collect acoustic signal data while the acoustic sensors are maintained in a non-contact position with respect to the wall of the borehole. The data may be processed to determine the desired velocity vector.Type: GrantFiled: June 8, 2017Date of Patent: July 23, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Henri-Pierre Valero, Jean-Christophe Auchere, Abderrhamane Ounadjela, Hiroshi Nakajima
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Patent number: 10281607Abstract: A downhole tool for real-time caliper measurements is provided. The downhole tool comprises multiple acoustic transducers mounted at different positions of the tool, and a control system. The control system drives the multiple transducers, receives pressure echo signals from the transducers, records the pressure echo signals in the memory, extracts data of two-way transit time and echo amplitude from the echo signals, and computes at least one of a borehole diameter, a tool center position, and an acoustic slowness or velocity of downhole fluid, based on the data of transit time and echo amplitude.Type: GrantFiled: October 26, 2016Date of Patent: May 7, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hiroshi Hori, Yoshino Matsumoto, Kojiro Nishimiya, Kiyomitsu Hikida, Jean-Christophe Auchere
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Publication number: 20170371059Abstract: Methods and systems of measuring acoustic signals via a borehole wall are disclosed. One or more non-contact magneto-dynamic sensors are configured or designed for deployment at at least one depth in a borehole. The magneto-dynamic sensor comprises a coil excited by an electric current and a circuitry for outputting a signal corresponding to a time-varying impedance of the coil. A processor is configured to perform signal processing for deriving at least one of a magnitude or a frequency of vibration of the borehole wall based on the output signal from the circuitry.Type: ApplicationFiled: January 15, 2016Publication date: December 28, 2017Inventors: Jean-Christophe Auchere, Henri-Pierre Valero, Remi Ounadjela, Hiroshi Nakajima, Alexis Pibrac
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Publication number: 20170357021Abstract: A technique facilitates monitoring of acoustic signals to measure a velocity vector of a borehole. Acoustic sensors are arranged in a desired acoustic sensor array and positioned along a body of a tool, e.g. a sonic logging tool. The acoustic sensor array is then positioned in fluid along a wall of a borehole formed in a subterranean formation. The acoustic sensors are used to collect acoustic signal data while the acoustic sensors are maintained in a non-contact position with respect to the wall of the borehole. The data may be processed to determine the desired velocity vector.Type: ApplicationFiled: June 8, 2017Publication date: December 14, 2017Inventors: Henri-Pierre Valero, Jean-Christophe Auchere, Abderrhamane Ounadjela, Hiroshi Nakajima
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Publication number: 20170314385Abstract: A technique facilitates use of acoustic measurements to enable geo-steering during a well operation. A steerable well string is provided with acoustic systems used to collect data which is then processed to determine geo-steering inputs. In some applications, the well string may comprise a coiled tubing drilling tool. The coiled tubing drilling tool or other well string tool is combined with an azimuthally distributed pitch-catch micro-sonic sensor system and an azimuthally distributed ultrasonic pulse-echo transducer system. Data from these two systems is provided to a processing system which processes the data to determine, for example, real-time, geo-steering inputs. These inputs may then be used to more effectively steer the coiled tubing drilling tool or other well string tool.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Inventors: Hiroshi Hori, Takeshi Endo, Evgeniya Deger, Naoki Sakiyama, Hiroshi Nakajima, Jean-Christophe Auchere, Henri-Pierre Valero
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Publication number: 20170115423Abstract: A downhole tool for real-time caliper measurements is provided. The downhole tool comprises multiple acoustic transducers mounted at different positions of the tool, and a control system. The control system drives the multiple transducers, receives pressure echo signals from the transducers, records the pressure echo signals in the memory, extracts data of two-way transit time and echo amplitude from the echo signals, and computes at least one of a borehole diameter, a tool center position, and an acoustic slowness or velocity of downhole fluid, based on the data of transit time and echo amplitude.Type: ApplicationFiled: October 26, 2016Publication date: April 27, 2017Inventors: Hiroshi Hori, Yoshino Matsumoto, Kojiro Nishimiya, Kiyomitsu Hikida, Jean-Christophe Auchere