Patents by Inventor Vassilis Varveropoulos
Vassilis Varveropoulos 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: 11942237Abstract: A cable coater system for a downhole tool includes a cable coater. The cable coater may include a housing and one or more rollers that are coupled to the housing, wherein the one or more rollers are configured to rest on the downhole cable while guiding the cable through openings in the cable coater during wireline operations. The cable coater may remain on cable during all spooling (on and off) activities for the duration of operations and activated to coat the cable upon the final pull out of hole and prior to storage of the cable. The spooling in and out of the cable may further be automatically controlled by providing a positional indicator of the cable coater and thus where the cable is in three-dimensional space relative the spool.Type: GrantFiled: February 17, 2020Date of Patent: March 26, 2024Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Marc-Andre de Looz, Bendang Aomeren Imchen, Vassilis Varveropoulos
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Patent number: 11893778Abstract: A method of controlling operation of equipment that spools an elongated member on and off a rotatable drum, in one or more embodiments, includes obtaining video data of a position of the elongated member on the rotatable drum. The method can also include feeding data into a trained artificial neural network and processing the data fed into the trained artificial neural network to determine at least one of a calculated position of the elongated member on the rotatable drum, a calculated fleet angle, or both. The method can also include actuating the rotatable drum to one of spool elongated member on and off the rotatable drum.Type: GrantFiled: February 12, 2021Date of Patent: February 6, 2024Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Tianxiang Su, Muhannad Abuhaikal, Christopher Bogath, Vassilis Varveropoulos
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Publication number: 20220364423Abstract: A method of controlling operation of equipment that spools cable on and off a rotatable drum, in one or more embodiments, includes obtaining video data of a position of the cable on the rotatable drum. The method can also include feeding data into a trained artificial neural network and processing the data fed into the trained artificial neural network to determine at least one of a calculated position of the cable on the rotatable drum, a calculated fleet angle, or both. The method can also include actuating the rotatable drum to one of spool cable on and off the rotatable drum.Type: ApplicationFiled: October 8, 2020Publication date: November 17, 2022Inventors: Muhannad Abuhaikal, Chris Bogath, Vassilis Varveropoulos, Tianxiang Su
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Publication number: 20220341307Abstract: A system for wireline service planning and advising includes a receiver, one or more computing system processors, and a transmitter. The receiver is configured to receive, from a user of the system, an objective parameter for interpreting a state of a well barrier. The one or more computing system processors is in communication with the receiver and configured to generate a plurality of candidate services based on the objective parameter and a model of the well barrier, each candidate service specifying sensor data to be acquired using wireline tools, select at least one wireline service from the wireline candidate services based on a selection logic or input by the user, and generate an execution plan specifying operational parameters of the selected wireline service. The transmitter is in communication with the one or more computing system processors and configured to transmit the execution plan to execute the selected wireline service at a wellsite.Type: ApplicationFiled: September 4, 2020Publication date: October 27, 2022Inventors: Ram Sunder Kalyanraman, Sebastien Roche, Claude Signer, Guillaume Borel, Thomas Barrou, Jean-Luc Le Calvez, Bo Ding, Vassilis Varveropoulos, Mikhail Lemarenko, Josselin Kherroubi
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Publication number: 20220335185Abstract: The present disclosure relates to a method comprising: receiving a resource model associated with a resource site and receiving one or more objective parameters, such that a first objective parameter comprised in the one or more objective parameters is a function of one or more parameter values of the resource model. The method comprises executing simulations to generate a first uncertainty value based on at least one of a first parameter value and a first uncertainty value of a first parameter of the resource model. The simulations may be executed to generate a first forecast uncertainty value for each scenario comprised in a plurality of scenarios. The method also identifies one service that minimizes an uncertainty value of the objective parameter based on the forecast uncertainty value. The method further includes generating a first visualization comprising the one identified service for viewing by a user via a user interface.Type: ApplicationFiled: September 4, 2020Publication date: October 20, 2022Inventors: Morten Kristensen, Marie LeFranc, Bertrand Theuveny, Hadrien Dumont, Nikita Chugunov, Sebastien Roche, Wiwin Yuliana, Zhenning Bao, Erwan Olliero, Ram Sunder Kalyanraman, Thomas Pfeiffer, Claude Signer, Simon Edmundson, Hua Yu, Ke Jiang, Vassilis Varveropoulos, Henri-Pierre Valero, Eric Jeanson, Guillaume Borrel, Pierre Bettinelli, Joel Le Calvez
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Publication number: 20220333477Abstract: A system for wireline service planning and advising includes a receiver, one or more computing system processors, and a transmitter. The receiver is configured to receive, from a user of the system, an objective parameter for interpreting a state of a well barrier. The one or more computing system processors is in communication with the receiver and configured to generate a plurality of candidate services based on the objective parameter and a model of the well barrier, each candidate service specifying sensor data to be acquired using wireline tools, select at least one wireline service from the wireline candidate services based on a selection logic or input by the user, and generate an execution plan specifying operational parameters of the selected wireline service. The transmitter is in communication with the one or more computing system processors and configured to transmit the execution plan to execute the selected wireline service at a wellsite.Type: ApplicationFiled: September 4, 2020Publication date: October 20, 2022Inventors: Ram Sunder Kalyanraman, Sebastien Roche, Claude Signer, Guillaume Borel, Thomas Barrou, Jean-Luc Le Calvez, Bo Ding, Vassilis Varveropoulos
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Publication number: 20220243575Abstract: The present disclosure relates to a system that is operable to receive an execution plan and execute a control operation on one or more equipment based operations within the execution plan. The one or more operations may include a data capturing operation associated with a resource site. In one embodiment, the system may be operable to execute at least a first operation in response to a success variable of the data capturing operation indicating a successful execution of the data capturing operation. The first operation may include a quality control operation that is executed by comparing at least one characteristic of the captured data to an expected characteristic to generate quality state data. The quality state data may have one of an acceptable status and an undesirable status. In response to the quality state data indicating an acceptable status for the quality control operation, executing at least a second operation.Type: ApplicationFiled: September 4, 2020Publication date: August 4, 2022Inventors: Morten Kristensen, Marie LeFranc, Bertrand Theuveny, Hadrien Dumont, Nikita Chugunov, Sebastien Roche, Wiwin Yuliana, Zhenning Bao, Erwan Olliero, Ram Sunder Kalyanraman, Thomas Pfeiffer, Claude Signer, Simon Edmundson, Hua Yu, Ke Jiang, Vassilis Varveropoulos, Henri-Pierre Valero, Eric Jeanson, Guillaume Borrel, Pierre Bettinelli, Joel Le Calvez
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Publication number: 20210164301Abstract: A method of controlling operation of equipment that spools an elongated member on and off a rotatable drum, in one or more embodiments, includes obtaining video data of a position of the elongated member on the rotatable drum. The method can also include feeding data into a trained artificial neural network and processing the data fed into the trained artificial neural network to determine at least one of a calculated position of the elongated member on the rotatable drum, a calculated fleet angle, or both. The method can also include actuating the rotatable drum to one of spool elongated member on and off the rotatable drum.Type: ApplicationFiled: February 12, 2021Publication date: June 3, 2021Inventors: Tianxiang Su, Muhannad Abuhaikal, Chris Bogath, Vassilis Varveropoulos
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Publication number: 20200265974Abstract: A cable coater system for a downhole tool includes a cable coater. The cable coater may include a housing and one or more rollers that are coupled to the housing, wherein the one or more rollers are configured to rest on the downhole cable while guiding the cable through openings in the cable coater during wireline operations. The cable coater may remain on cable during all spooling (on and off) activities for the duration of operations and activated to coat the cable upon the final pull out of hole and prior to storage of the cable. The spooling in and out of the cable may further be automatically controlled by providing a positional indicator of the cable coater and thus where the cable is in three-dimensional space relative the spool.Type: ApplicationFiled: February 17, 2020Publication date: August 20, 2020Inventors: Marc-Andre de Looz, Bendang Aomeren Imchen, Vassilis Varveropoulos
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Patent number: 10185051Abstract: A method to calibrate a nuclear magnetic resonance tool is disclosed having steps of starting a nuclear magnetic resonance sequence from the nuclear magnetic resonance tool, disabling an active damping circuit in the nuclear magnetic resonance tool, collecting auxiliary calibration data for the nuclear magnetic resonance tool, estimating a natural Q value for the nuclear magnetic resonance tool, determining an optimal active damping setting for the tool, deploying the optimal active damping setting for the tool, collecting nuclear magnetic resonance response data generated from the nuclear magnetic resonance sequence and calibrating the nuclear magnetic resonance data.Type: GrantFiled: April 29, 2016Date of Patent: January 22, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Diogenes David Molina, Eugene Janssen, Krishnamurthy Ganesan, Nicholas Heaton, Vassilis Varveropoulos
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Publication number: 20170315258Abstract: A method to calibrate a nuclear magnetic resonance tool is disclosed having steps of starting a nuclear magnetic resonance sequence from the nuclear magnetic resonance tool, disabling an active damping circuit in the nuclear magnetic resonance tool, collecting auxiliary calibration data for the nuclear magnetic resonance tool, estimating a natural Q value for the nuclear magnetic resonance tool, determining an optimal active damping setting for the tool, deploying the optimal active damping setting for the tool, collecting nuclear magnetic resonance response data generated from the nuclear magnetic resonance sequence and calibrating the nuclear magnetic resonance data.Type: ApplicationFiled: April 29, 2016Publication date: November 2, 2017Inventors: Diogenes David Molina, Eugene Janssen, Krishnamurthy Ganesan, Nicholas Heaton, Vassilis Varveropoulos
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Patent number: 9500768Abstract: The present disclosure relates to a telemetry tool for use in a well. The telemetry tool has a hollow, conductive waveguide through which a non-conductive fluid can flow. A transmitter and a receiver are disposed in the hollow interior of the waveguide, separated by some desired distance. A signal is transmitted by the transmitter, propagated by the waveguide, and received by the receiver.Type: GrantFiled: July 22, 2009Date of Patent: November 22, 2016Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Vassilis Varveropoulos, Reza Taherian
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Patent number: 8031081Abstract: An embodiment of a wireless telemetry system for providing signal communication across a wired-communication gap in a bottom-hole assembly (“BHA”), the BHA having an upper portion and a lower portion separated by the wired-communication gap, includes an upper transceiver positioned in the upper portion and in signal communication with a surface telemetry system and a lower transceiver positioned in the lower portion and in signal communication with a drilling tool, the upper and the lower transceivers in signal communication with one another via wireless induction telemetry. Each transceiver may include an antenna that is positioned within the bore of a drill collar adjacent to a thinned wall section in the drill collar. The thinned wall section may include one or more of increasing an inside diameter relative to a base inside diameter of the bore and decreasing an outside diameter relative to a base outside diameter of the drill collar.Type: GrantFiled: June 27, 2007Date of Patent: October 4, 2011Assignee: Schlumberger Technology CorporationInventors: Attilio C. Pisoni, David L. Smith, Brian Clark, Jean Seydoux, Vassilis Varveropoulos
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Publication number: 20110018734Abstract: The present disclosure relates to a telemetry tool for use in a well. The telemetry tool has a hollow, conductive waveguide through which a non-conductive fluid can flow. A transmitter and a receiver are disposed in the hollow interior of the waveguide, separated by some desired distance. A signal is transmitted by the transmitter, propagated by the waveguide, and received by the receiver.Type: ApplicationFiled: July 22, 2009Publication date: January 27, 2011Inventors: VASSILIS VARVEROPOULOS, Reza Taherian
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Publication number: 20080158006Abstract: An embodiment of a wireless telemetry system for providing signal communication across a wired-communication gap in a bottom-hole assembly (“BHA”), the BHA having an upper portion and a lower portion separated by the wired-communication gap, includes an upper transceiver positioned in the upper portion and in signal communication with a surface telemetry system and a lower transceiver positioned in the lower portion and in signal communication with a drilling tool, the upper and the lower transceivers in signal communication with one another via wireless induction telemetry. Each transceiver may include an antenna that is positioned within the bore of a drill collar adjacent to a thinned wall section in the drill collar. The thinned wall section may include one or more of increasing an inside diameter relative to a base inside diameter of the bore and decreasing an outside diameter relative to a base outside diameter of the drill collar.Type: ApplicationFiled: June 27, 2007Publication date: July 3, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: ATTILIO C. PISONI, DAVID L. SMITH, BRIAN CLARK, JEAN SEYDOUX, VASSILIS VARVEROPOULOS