Patents Assigned to Schlumberger Technology
  • Multi-cable wireline guide systems and methods
    Patent number: 11060368
    Abstract: A well-logging system includes a first downhole tool coupled to a first cable for conveying the first downhole tool along a wellbore. A second downhole tool having a housing is coupled to a second cable for conveying the second downhole tool along the wellbore. The well-logging system includes a cable guide having a chassis structure coupled to the housing and a sleeve coupled to the chassis structure and disposed about the first cable. The first cable is configured to translate along the sleeve such that the sleeve facilitates guided movement of the first downhole tool relative to the second downhole tool.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: July 13, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Nicholas Fundytus, Alejandro Martinez Pereira, Colin Wilson, Richard Parker
  • Permeability determinations from wideband EM models using borehole logging tools
    Patent number: 11061163
    Abstract: A permeability log is generated by running borehole tools in a borehole traversing a formation, including at least electromagnetic (EM) tool providing at least a low-frequency complex conductivity measurement at least one frequency. Data from the EM tool and other data obtained from other tools are provided to a wideband EM model, where a data inversion is conducted to provide a plurality of outputs from which a cementation exponent may be calculated. The cementation exponent is used to find a formation factor at each depth of interest in the borehole, and the formation factor is used to find a permeability value which is used for the permeability log. The permeability log may be generated without the use of core data.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: July 13, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Nikita V. Seleznev, Tarek M. Habashy
  • Snap in screen and method
    Patent number: 11052428
    Abstract: A method of installing a vibratory shaker screen in a vibratory shaker, including placing a first end of the vibratory shaker screen in a retainer, wherein the retainer is a component of the vibratory shaker; pivoting a second end of the vibratory shaker screen toward a screen installation position on the vibratory shaker, deflecting a tab on one of the vibratory shaker screen and the vibratory shaker through contact of the vibratory shaker screen to another retainer of the vibratory shaker, and connecting the vibratory shaker screen to the vibratory shaker, where the tab fixedly connects the vibratory shaker screen to the vibratory shaker.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 6, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mitchell Landwehr, Benjamin Holton, John Fedders
  • Hang off ram preventer
    Patent number: 11053764
    Abstract: A ram type blowout preventer is designed to provide substantial hang off capability. Improved hang off capacity is provided by the ram bodies having shaped upper centralizing lobes and/or semi-circular or U-shaped central openings. In particular, the interface between the upper centralizer lobe and central opening is tapered such that the hang off load is spread over a larger area of each ram body.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: July 6, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Gabriele Armilli, Teddy Rames, Florent Vargas
  • Machine learning for production prediction
    Patent number: 11053789
    Abstract: Estimating a production prediction of a target well includes computing, based on production time series from training wells, a smoothed production history curves. Each smoothed production history curve corresponds to a training well. Based on the smoothed production history curves, a fitting function defined by a set of fitting coefficients is selected. A machine learning process determines, based on a set of well parameters for each training well, a set of predicted fitting coefficients as a function of a set of well parameters of the target well. Estimating the production prediction further includes applying the predicted fitting coefficients to the fitting function to compute a production prediction curve for the target well, and presenting the production prediction curve.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 6, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Gabriel Maher, Daniel D'Souza
  • Feature index-based feature detection
    Patent number: 11054537
    Abstract: A method can include receiving n-dimensional data where n is equal at least three; analyzing a plurality of two-dimensional slices of the n-dimensional data to determine characteristic information with respect to a plurality of feature indexes for a feature in the n-dimensional data; and, based at least in part on the characteristic information, associating the feature with one of the feature indexes.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 6, 2021
    Assignee: Schlumberger Technology Corporation
    Inventor: Victor Aarre
  • Iron roughnecks for non-stop circulation system
    Patent number: 11053755
    Abstract: An iron roughneck for constant circulation of drilling mud during operation of a drill string, the iron roughneck comprising: a frame; a wrench unit supported by the frame, wherein the wrench unit is capable of gripping a drill string; a spinner unit supported by the frame, wherein the spinner unit is capable of engaging and spinning a drill pipe; and a circulation coupler supported by the frame, wherein the circulation coupler forms a chamber around the drill string.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: July 6, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Zaurayze Tarique, Blaine Dow, Justin Cremer
  • Piston control via adjustable rod
    Patent number: 11053961
    Abstract: A piston's stroke length may be restricted by passing a rod through a through hole in the piston. The stroke length's boundaries may be defined by the points where an interior of the through hole contacts an exterior of the rod. Adjusting a position or orientation of the rod may alter this stroke length. If the rod comprises a noncylindrical external geometry, a radius thereof may vary along an axial length of the rod or around a circumference thereof. Adjustment of the rod, via axial translation or rotation for example, may change the position of contact between the rod and the through hole. Alternately, the through hole may comprise a unique geometry in which the rod may radially translate to adjust the piston's stroke length.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: July 6, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Jonathan D. Marshall
  • AUTONOMOUS OPTIMIZATION OF SINGLE-WELL AND MULTI-WELL GAS LIFT
    Publication number: 20210198988
    Abstract: Methods and systems are provided for controlling gas lift in at least one production well, which determine a quadratic function that relates flow rate or value of oil produced from a production well to gas flow rate for gas injected into the production well based on flow rate measurements for gas injected into the production well and corresponding flow rate measurements of oil produced from the production well. The quadratic function is used to determine an optimal flow rate for gas injected into the production well. The optimal flow rate for gas injected into the production well is used to control the flow rate of gas injected into the production well, and an oil flow rate produced from the production well is measured at the optimal gas flow rate for iterative processing to refine the quadratic function and determination of optimal gas flow rate if need be.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 1, 2021
    Applicant: Schlumberger Technology Corporation
    Inventors: Terizhandur S. Ramakrishnan, William J. Bailey, Kashif Rashid
  • METHOD FOR RESERVOIR SIMULATION OPTIMIZATION UNDER GEOLOGICAL UNCERTAINTY
    Publication number: 20210199843
    Abstract: A method, computer program product, and computing system are provided for receiving reservoir data associated with the reservoir. A simulation may be performed on the reservoir data to generate simulated reservoir data. A subset of realizations including a minimal number of realizations from a plurality of realizations may be determined based upon, at least in part, one or more statistical moments of the simulated reservoir data. An optimized reservoir model associated with an objective may be generated based upon, at least in part, the subset of realizations including the minimal number of realizations.
    Type: Application
    Filed: April 15, 2019
    Publication date: July 1, 2021
    Applicant: Schlumberger Technology Corporation
    Inventor: Kashif RASHID
  • Seismic image data interpretation system
    Patent number: 11048000
    Abstract: A method can include receiving seismic image data of a geologic region and interpretation information of the seismic image data for a geologic feature in the geologic region, where the seismic image data include a geologic feature class imbalance; shifting the geologic feature class imbalance toward a class of the geologic feature by increasing the spatial presence of the geologic feature in the seismic image data to generate training data; and training a neural network using the training data to generate a trained neural network.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 29, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Nader Salman, Francis Grady, Paal Kjetil Kvamme, Mats Stivang Ramfjord
  • Wellsite power mapping and optimization
    Patent number: 11049051
    Abstract: Embodiments disclosed prove a method for improving power usage for an oilfield operation. The method includes analyzing power usage for the oilfield operation, mapping power consumption for the oilfield operation; mapping power utilization for the oilfield operation; and improving power utilization for the oilfield operation.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: June 29, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Jijo Oommen Joseph, Olivier Clerc, Steven Schilling, William Troy Huey
  • Optimization of magnet arrangement for nuclear magnetic resonance well logging tools
    Patent number: 11047938
    Abstract: A method for fabricating a magnet on a nuclear magnetic resonance logging tool includes identifying a desired magnetic field strength at a predetermined depth of investigation, receiving a set of magnet segments configured for deployment on the logging tool in a magnet arrangement which make up a magnet array on the logging tool, processing a magnetic strength and an angular offset of selected magnet segments and their unique location in the magnet array to compute corresponding magnetic field strength solutions at the predetermined depth of investigation, selecting one magnet arrangement solution that minimizes a difference between the magnetic field strength solution and the desired magnetic field strength at the predetermined depth of investigation, and deploying the magnet segments on the logging tool according to the selected magnet arrangement solution to fabricate the magnet.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: June 29, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Shin Utsuzawa, Anatoly Dementyev, Nicholas Heaton, Cole Mann
  • Systems and methods for managing drive parameters after maintenance
    Patent number: 11050377
    Abstract: Systems and methods for operating a motor according to parameters provided by an autotuning component if available are described. A controller can be coupled to a drive which operates a motor for executing a task that can be related to a drilling operation for oil and gas. The controller stores initial parameters and checks for new parameters provided by the autotuning component which are stored on the drive after the autotuning component autotunes the motor. If there are new parameters, they are given priority over the initial parameters.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 29, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Shyam Janakiraman, Ramakrishna Madhireddy, Franz Carstens, Seetharam Kothuru
  • Chemical injection system
    Patent number: 11047208
    Abstract: A technique facilitates both actuation of a well tool and chemical injection at a corresponding well zone or well zones. In a multi-zone operation, the well system may comprise a plurality of operating modules coupled with corresponding actuators and chemical injection devices. The well system is deployed downhole to a desired location in a borehole, e.g. a wellbore. The operating modules may be selectively shifted via electrical input to enable a desired chemical injection and/or actuation of the actuator (and thus the well tool) at desired well zones. In some embodiments, the operating modules may comprise contingency circuits to enable the chemical injection without electrical input.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 29, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Soufiane Halily, Emrah Gokdag, Jerome Prost, Richa Bansal, Parvesh Singh
  • Formation characterization system
    Patent number: 11048012
    Abstract: A formation characterization system can include a processor; memory accessibly by the processor; instructions stored in the memory and executable by the processor to instruct the system to: acquire induction measurements in a borehole in a formation using an induction tool; determine dielectric properties of the formation using the induction measurements; and generate a log that characterizes particles in the formation based on the dielectric properties.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: June 29, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Rasmus, Gong Li Wang, Dean M. Homan, Natalie Uschner-Arroyo
  • Representing structural uncertainty in a mesh representing a geological environment
    Patent number: 11042676
    Abstract: A method can include receiving a node-based mesh that represents a geologic environment and a structural feature in the geologic environment; defining a node-based parameter space for structural uncertainty of nodes that represent the structural feature in the geologic environment; defining a hull with respect to nodes of a portion of the mesh where the hull encompasses at least a portion of nodes that represent the structural feature; for a system of equations, imposing boundary conditions on the nodes of the hull and on the at least a portion of the nodes that represent the structural feature; solving the system of equations for a displacement field; and generating a structural uncertainty realization of the node-based mesh based at least in part on the displacement field.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 22, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Jimmy Klinger, Thomas Laverne
  • Automated operation of wellsite equipment
    Patent number: 11041579
    Abstract: Systems and method for controlling wellsite equipment, including pumps and a manifold having a low-pressure (LP) manifold, having LP ports with LP valves, and a high-pressure (HP) manifold, having HP ports with HP valves and bleed ports with bleed valves. The pumps are fluidly coupled with the LP manifold via LP conduits and with the HP manifold via HP conduits. Communication is established between a controller and the LP valves, the HP valves, the bleed valves, the pumps, and sensors for monitoring pressure within the HP conduits. The controller is operable to, with respect to each pump, cause the LP valve to transition to a closed position, cause the HP and/or bleed valve to transition to an open position, and determine that the HP conduit is not pressurized based on the information generated by the sensors.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 22, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Miguel Angel Lopez, Marcos Suguru Kajita, Nan Mu, Chuong Nguyen, Corey Ray, Manuel Alfonso Bobadilla Larios
  • Adaptive probabilistic health management for rig equipment
    Patent number: 11041371
    Abstract: Systems and methods for monitoring health of systems and components of an oil rig are disclosed. Monitoring usage parameters allows for a probabilistic way to determine when rig equipment will fail. A failure probability curve based on past performance of the equipment can be used. Multiple usage metrics allow for increased accuracy and certainty of a time of failure for the equipment. Using a sufficiently high number of usage metrics allows the failure probability range to be very narrow and therefore the certainty of the prediction is high.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 22, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Alejandro Camacho Cardenas, Edwin Sutrisno
  • Wellbore plug and abandonment
    Patent number: 11041354
    Abstract: A downhole tool for conveyance within a wellbore extending into a subterranean formation. The downhole tool includes a sealing material and a laser apparatus, and is operable to create and fill a void with the sealing material to form a plug during a plug and abandonment operation.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: June 22, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Douglas Pipchuk, Iain Michael Cooper