Patents by Inventor Ram Sunder Kalyanraman

Ram Sunder Kalyanraman 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: 11808908
    Abstract: Methods including determining a measurement plan, having acoustic measurements, and lowering in a borehole penetrating a subsurface formation a toolstring having phased array modules. Each phased array module includes acoustic transducers operable to emit an acoustic excitation signal and receive an echo signal, as well as a programmable circuit for setting one or more variables of the phased array module. The phased array modules are configured, including programming the programmable circuit to set variables of the phased array modules according to the measurement plan. The acoustic measurements of the measurement plan are performed using the configured phased array modules. One or more of the formation, a casing disposed in the borehole, and/or an annulus between the casing and the formation are characterized using results of the performed acoustic measurements.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: November 7, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Orland Guedes, Mikhail Lemarenko, Hiroshi Hori, Jean-Baptiste Cozon, Beatriz Eugenia Otero Roldan, Nicolas Fradin, Roel Van Os, Ram Sunder Kalyanraman
  • Publication number: 20230220762
    Abstract: The present disclosure introduces an apparatus including a toolstring for use in a tubular extending into a subterranean formation. The toolstring includes modular components that include one or more caliper modules and a power and control (P/C) module. The one or more caliper modules each include radially rotatable fingers for sensing an internal diameter of the tubular. The P/C module is operable for distributing power and control signals to the one or more caliper modules. The caliper and P/C modules are mechanically and electrically interconnected by common lower interfaces of the caliper and P/C modules.
    Type: Application
    Filed: January 13, 2023
    Publication date: July 13, 2023
    Inventors: Cédric Perrin, Jose Luis Lopes, Sébastien Jacquart, Miguel Delgado, Florian Becker, Pedro Alexandre Das Neves, Ram Sunder Kalyanraman, Syed Talghani, Alexis He, Chew Yeong Leong, Josselin Kherroubi
  • Publication number: 20230167732
    Abstract: A system and method for detecting defects in a tubular structure installed in a wellbore extending into a subterranean formation. An input image of the tubular structure contains input data indicative of a characteristic of the tubular structure. A background image is determined based on the input image. The background image contains background data indicative of the characteristic of the tubular structure associated with manufacturing of the tubular structure. A defect image is determined based on a difference between the input image and the background image. The defect image contains defect data indicative of the characteristic of the tubular structure associated with defects in the tubular structure.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 1, 2023
    Inventors: Salma Benslimane, Josselin Kherroubi, Jean-Luc Le Calvez, Ram Sunder Kalyanraman, Mikhail Lemarenko, Thomas Berard, Kamaljeet Singh
  • Patent number: 11555395
    Abstract: The present disclosure introduces an apparatus including a toolstring for use in a tubular extending into a subterranean formation. The toolstring includes modular components that include one or more caliper modules and a power and control (P/C) module. The one or more caliper modules each include radially rotatable fingers for sensing an internal diameter of the tubular. The P/C module is operable for distributing power and control signals to the one or more caliper modules. The caliper and P/C modules are mechanically and electrically interconnected by common lower interfaces of the caliper and P/C modules.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: January 17, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Cédric Perrin, Jose Luis Lopes, Sébastien Jacquart, Miguel Delgado, Florian Becker, Pedro Alexandre Das Neves, Ram Sunder Kalyanraman, Syed Talghani, Alexis He, Chew Yeong Leong, Josselin Kherroubi
  • 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
  • Patent number: 11378707
    Abstract: Systems and methods for identifying a potential third interface echo (TIE) using objective criteria are provided. A system includes an acoustic logging tool that obtains measurements in a wellbore and a data processing system that has a processor that receives the measurements from the acoustic logging tool. The data processing system may identify a third interface echo (TIE) using a neural network and/or by a signal analysis method based on the behavioral characteristics of the TIE signal.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 5, 2022
    Assignee: Schlumberger Technology Corporation
    Inventors: Mikhail Lemarenko, Elizaveta Rybka, Ram Sunder Kalyanraman, Josselin Kherroubi
  • Patent number: 11353608
    Abstract: The disclosure relates to a method of determining at least a property of a material situated behind a casing of a borehole, wherein an image of a imaging parameter of the material, such as acoustic impedance, has been obtained. The method comprising identifying zones of the image corresponding to disturbance zones, based in particular on values of the imaging parameters or other measured parameters, deleting the data of the imaging parameter in each of the disturbance zones, reconstructing for each zone, data of the imaging parameter from the data of imaging parameter at the neighboring zones, and determining at least a property of the material based on the reconstructed image.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 7, 2022
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert Laronga, Ram Sunder Kalyanraman
  • Publication number: 20220146701
    Abstract: Systems and methods for identifying a potential third interface echo (TIE) using objective criteria are provided. A system includes an acoustic logging tool that obtains measurements in a wellbore and a data processing system that has a processor that receives the measurements from the acoustic logging tool. The data processing system may identify a third interface echo (TIE) using a neural network and/or by a signal analysis method based on the behavioral characteristics of the TIE signal.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 12, 2022
    Inventors: Mikhail Lemarenko, Elizaveta Rybka, Ram Sunder Kalyanraman, Josselin Kherroubi
  • Patent number: 11261729
    Abstract: Methods and systems for determining a property of a tubular are described. Measurement data of cross-sectional shapes of the tubular at a plurality of depth positions is provided. A three-dimensional mesh representing the tubular based on the cross-sectional shapes is generated. A stress simulation using the three-dimensional mesh to provide an integrity assessment of the tubular is performed.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 1, 2022
    Assignee: Schlumberger Technology Corporation
    Inventors: Adrian Rodriguez Herrera, Ram Sunder Kalyanraman, Karsten Fischer, James Minton, Francisco Jose Gomez, Assef Mohamad Hussein, Saad Kisra
  • Publication number: 20210247538
    Abstract: Methods including determining a measurement plan, having acoustic measurements, and lowering in a borehole penetrating a subsurface formation a toolstring having phased array modules. Each phased array module includes acoustic transducers operable to emit an acoustic excitation signal and receive an echo signal, as well as a programmable circuit for setting one or more variables of the phased array module. The phased array modules are configured, including programming the programmable circuit to set variables of the phased array modules according to the measurement plan. The acoustic measurements of the measurement plan are performed using the configured phased array modules. One or more of the formation, a casing disposed in the borehole, and/or an annulus between the casing and the formation are characterized using results of the performed acoustic measurements.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 12, 2021
    Inventors: Orland Guedes, Mikhail Lemarenko, Hiroshi Hori, Jean-Baptiste Cozon, Beatriz Eugenia Otero Roldan, Nicolas Fradin, Roel Van Os, Ram Sunder Kalyanraman
  • Publication number: 20210180442
    Abstract: The present disclosure introduces an apparatus including a toolstring for use in a tubular extending into a subterranean formation. The toolstring includes modular components that include one or more caliper modules and a power and control (P/C) module. The one or more caliper modules each include radially rotatable fingers for sensing an internal diameter of the tubular. The P/C module is operable for distributing power and control signals to the one or more caliper modules. The caliper and P/C modules are mechanically and electrically interconnected by common lower interfaces of the caliper and P/C modules.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 17, 2021
    Inventors: Cédric Perrin, Jose Luis Lopes, Sébastien Jacquart, Miguel Delgado, Florian Becker, Pedro Alexandre Das Neves, Ram Sunder Kalyanraman, Syed Talghani, Alexis He, Chew Yeong Leong, Josselin Kherroubi
  • Publication number: 20200378246
    Abstract: Methods and systems for determining a property of a tubular are described. Measurement data of cross-sectional shapes of the tubular at a plurality of depth positions is provided. A three-dimensional mesh representing the tubular based on the cross-sectional shapes is generated. A stress simulation using the three-dimensional mesh to provide an integrity assessment of the tubular is performed.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 3, 2020
    Inventors: Adrian Rodriguez Herrera, Ram Sunder Kalyanraman, Karsten Fischer, James Minton, Francisco Jose Gomez, Assef Mohamad Hussein, Saad Kisra
  • Patent number: 10711565
    Abstract: A method for remediating a microannulus in a cased wellbore may include conveying a downhole tool into the cased wellbore to a location of interest. The location of interest may include one or more perforations in a casing and a microannulus. The downhole tool may include a heat generation device. The method may also include activating the heat generation device to melt a fill material at the location of interest such that the fill material flows through the perforations into one or more voids, including the microannulus, in or around cement disposed between the casing and the cased wellbore. Additionally, the method may include deactivating the heat generation device to facilitate solidification of the fill material in the one or more voids and sealing of the microannulus.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: July 14, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Matthew Edward Billingham, Ram Sunder Kalyanraman
  • Patent number: 10539699
    Abstract: Systems, methods, and devices for evaluating proper cement installation in a well are provided. In one example, a method includes receiving acoustic cement evaluation data into a data processing system. The acoustic cement evaluation data derives from one or more acoustic downhole tools used over a depth interval in a well having a casing. The acoustic cement evaluation data includes sonic measurements and ultrasonic measurements. The method includes deriving a sonic-derived acoustic impedance Z(sonic) from the sonic measurements deriving an ultrasonic-derived acoustic impedance Z(ultrasonic) from the ultrasonic measurements comparing the Z(sonic) with respect to the Z(ultrasonic), and determining whether an annular fill behind the casing is well bonded, partially bonded, comprises wet microannulus, or comprises dry microannulus based on the comparison of the Z(sonic) with respect to the Z(ultrasonic).
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: January 21, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ram Sunder Kalyanraman, Hiroshi Hori
  • Patent number: 10533410
    Abstract: A method of model-based acoustic measurements for a wellbore comprises creating an interpretation chart of acoustic measurements by a downhole tool in a wellbore using a numerical modeling and performing an evaluation with respect to the wellbore based on the interpretation chart.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: January 14, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Hiroshi Hori, Ram Sunder Kalyanraman, Hiroshi Nakajima, Henri-Pierre Valero
  • Publication number: 20190249517
    Abstract: A method for remediating a microannulus in a cased wellbore may include conveying a downhole tool into the cased wellbore to a location of interest. The location of interest may include one or more perforations in a casing and a microannulus. The downhole tool may include a heat generation device. The method may also include activating the heat generation device to melt a fill material at the location of interest such that the fill material flows through the perforations into one or more voids, including the microannulus, in or around cement disposed between the casing and the cased wellbore. Additionally, the method may include deactivating the heat generation device to facilitate solidification of the fill material in the one or more voids and sealing of the microannulus.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 15, 2019
    Inventors: Matthew Edward Billingham, Ram Sunder Kalyanraman
  • Patent number: 10378341
    Abstract: Systems, methods, and devices for evaluating proper cement installation in a well are provided. In one example, a method includes receiving acoustic cement evaluation data having a first parameterization. At least a portion of the entire acoustic cement evaluation data may be corrected to account for errors in the first parameterization, thereby obtaining corrected acoustic cement evaluation data. This corrected acoustic cement evaluation data may be processed with an initial solid-liquid-gas model before performing a posteriori refinement of the initial solid-liquid-gas model, thereby obtaining a refined solid-liquid-gas model. A well log track-indicating whether a material behind the casing is a solid, liquid, or gas—may be generated by processing the corrected acoustic cement evaluation data using the refined solid-liquid-gas model.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: August 13, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Robert van Kuijk, Ram Sunder Kalyanraman