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).

  • Patent number: 11942237
    Abstract: 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: Grant
    Filed: February 17, 2020
    Date of Patent: March 26, 2024
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Marc-Andre de Looz, Bendang Aomeren Imchen, Vassilis Varveropoulos
  • Patent number: 11893778
    Abstract: 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: Grant
    Filed: February 12, 2021
    Date of Patent: February 6, 2024
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Tianxiang Su, Muhannad Abuhaikal, Christopher Bogath, Vassilis Varveropoulos
  • Publication number: 20220364423
    Abstract: 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: Application
    Filed: October 8, 2020
    Publication date: November 17, 2022
    Inventors: Muhannad Abuhaikal, Chris Bogath, Vassilis Varveropoulos, Tianxiang Su
  • Publication number: 20220341307
    Abstract: 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: Application
    Filed: September 4, 2020
    Publication date: October 27, 2022
    Inventors: Ram Sunder Kalyanraman, Sebastien Roche, Claude Signer, Guillaume Borel, Thomas Barrou, Jean-Luc Le Calvez, Bo Ding, Vassilis Varveropoulos, Mikhail Lemarenko, Josselin Kherroubi
  • Publication number: 20220335185
    Abstract: 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: Application
    Filed: September 4, 2020
    Publication date: October 20, 2022
    Inventors: 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
  • Publication number: 20220333477
    Abstract: 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: Application
    Filed: September 4, 2020
    Publication date: October 20, 2022
    Inventors: Ram Sunder Kalyanraman, Sebastien Roche, Claude Signer, Guillaume Borel, Thomas Barrou, Jean-Luc Le Calvez, Bo Ding, Vassilis Varveropoulos
  • Publication number: 20220243575
    Abstract: 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: Application
    Filed: September 4, 2020
    Publication date: August 4, 2022
    Inventors: 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
  • Publication number: 20210164301
    Abstract: 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: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Inventors: Tianxiang Su, Muhannad Abuhaikal, Chris Bogath, Vassilis Varveropoulos
  • Publication number: 20200265974
    Abstract: 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: Application
    Filed: February 17, 2020
    Publication date: August 20, 2020
    Inventors: Marc-Andre de Looz, Bendang Aomeren Imchen, Vassilis Varveropoulos
  • Patent number: 10185051
    Abstract: 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: Grant
    Filed: April 29, 2016
    Date of Patent: January 22, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Diogenes David Molina, Eugene Janssen, Krishnamurthy Ganesan, Nicholas Heaton, Vassilis Varveropoulos
  • Publication number: 20170315258
    Abstract: 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: Application
    Filed: April 29, 2016
    Publication date: November 2, 2017
    Inventors: Diogenes David Molina, Eugene Janssen, Krishnamurthy Ganesan, Nicholas Heaton, Vassilis Varveropoulos
  • Patent number: 9500768
    Abstract: 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: Grant
    Filed: July 22, 2009
    Date of Patent: November 22, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Vassilis Varveropoulos, Reza Taherian
  • Patent number: 8031081
    Abstract: 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: Grant
    Filed: June 27, 2007
    Date of Patent: October 4, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Attilio C. Pisoni, David L. Smith, Brian Clark, Jean Seydoux, Vassilis Varveropoulos
  • Publication number: 20110018734
    Abstract: 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: Application
    Filed: July 22, 2009
    Publication date: January 27, 2011
    Inventors: VASSILIS VARVEROPOULOS, Reza Taherian
  • Publication number: 20080158006
    Abstract: 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: Application
    Filed: June 27, 2007
    Publication date: July 3, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: ATTILIO C. PISONI, DAVID L. SMITH, BRIAN CLARK, JEAN SEYDOUX, VASSILIS VARVEROPOULOS