Patents Assigned to Schlumberger Technology
  • Estimating nuclear magnetic resonance measurement quality
    Patent number: 11091997
    Abstract: A system for drilling a borehole is disclosed. The system may include drill string having a bottom hole assembly a nuclear magnetic resonance tool within the bottom hole assembly, and a surface control system including a nuclear magnetic resonance measurement quality map. The control system may be configured to drill a borehole at a first set of drilling parameters and to receive motion properties from the nuclear magnetic resonance tool and adjust the drilling of the bore hole at a second set of drilling parameters. The surface control system may be further configured to adjust the drilling of the bore hole based on the motion properties from the nuclear magnetic resonance tool and the nuclear magnetic resonance measurement quality map.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: August 17, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Shin Utsuzawa, Wei Chen, Martin D. Hurlimann, Antoine Marcel Benard, Vasileios Varveropoulos
  • Non-explosive downhole perforating and cutting tools
    Patent number: 11091972
    Abstract: A non-explosive downhole tool for creating openings in tubulars and or earthen formations includes a carrier holding a non-explosive material, such as thermate, a head connected with the carrier and having a port to eject a product of the ignited material from the head and a communication path extending from the material to the port and a moveable member in a closed position blocking the communication path and in an open position opening the communication path.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: August 17, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Hongfa Huang, Delbert Taylor
  • EM-telemetry remote sensing wireless network and methods of using the same
    Patent number: 11092005
    Abstract: A surface system for an electromagnetic telemetry remote sensing wireless system includes a surface acquisition system configured to receive wireless signals and a plurality of nodes deployed at Earth's surface in a drilling area. Each of the nodes includes a distinct pair of first and second spaced apart electrodes and is configured to digitize voltage differences between the corresponding first and second electrodes and to wirelessly transmit the digitized voltage differences to the surface acquisition system. The voltage differences include an electromagnetic signal transmitted by a downhole tool deployed in a wellbore in the drilling area.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 17, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Luis Eduardo DePavia, Gaelle Jannin, Jiuping Chen
  • Placement of non-planar cutting elements
    Patent number: 11091960
    Abstract: A downhole cutting tool includes a tool body having a tool axis, and a blade extending from the tool body. The blade includes a cutting face, a trailing face, and a top face extending between the cutting face and the trailing face. Cutting elements are attached to the bade along the cutting face, with each having a cutting crest at a peak height and a reduced height extending laterally away from the cutting crest. In some cases, first cutting elements along the cutting face and second cutting elements along the top face and rearward from, and at the same radial position as, the first cutting elements have different size, orientation, geometry or material properties. In additional aspects, at least two cutting elements on the blade have differing material properties, sizes, orientations, or working surface geometries along a blade profile of the blade.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: August 17, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Youhe Zhang, Xiaoge Gan, Huimin Song
  • Method of refracturing in a horizontal well
    Patent number: 11091994
    Abstract: A horizontal well may be refractured or reactivated by generating a geomechanical model to estimate the stress level in the formation; identifying zones with high, medium, and low stress levels in the formation; isolating existing fractures in the horizontal well; injecting a fracturing fluid into the well to create at least one new fracture in a zone with a low stress level and packing the created fracture with proppant to increase the stress level in the zone; isolating the at least one newly created fracture; initiating refracturing in the zone with the high and/or medium stress level; identifying a location of the refracturing crack in the zone with the high and/or medium stress level; and developing the refracturing crack and packing it with proppant.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: August 17, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Sergey Dmitrievich Parkhonyuk, Evgeny Pavlovich Korelskiy, Kreso Kurt Butula, Andrey Sergeevich Konchenko, Valeriy Anatolievich Pavlov
  • Emulsions containing water-soluble acid retarding agents and methods of making and using
    Patent number: 11091689
    Abstract: Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: August 17, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher Daeffler, Mohan Kanaka Raju Panga
  • INTEGRATED LITHIUM EXTRACTION
    Publication number: 20210246529
    Abstract: Methods and apparatus for integrated alkali metal extraction are disclosed. Various exchange media are used to separate a chosen alkali metal, usually lithium, from a source stream and render the alkali metal into a product. In some cases, absorption/desorption processes, using solid and/or liquid absorption media, are used to purify a brine stream into a concentrate stream having elevated concentration of the desired alkali metal. Various processes, which may include use of liquid absorbents, electrochemical processing, centrifugation, evaporation, electrical mixing and separation, or combinations thereof, are used to separate the chosen metal from the source, and aqueous streams are recycled among the processes to facilitate the various separations.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 12, 2021
    Applicant: Schlumberger Technology Corporation
    Inventors: Ankur D. Jariwala, Gary W. Sams
  • Interface for automation client
    Patent number: 11086282
    Abstract: Automation agents are utilized to modify operating characteristics of a client, such as a piece of equipment. An operating characteristic of equipment can be selectively adjusted by modification of a set point value, which is associated with the operating characteristic of the equipment. The equipment can adjust the operating characteristic based upon the set point value. A remote control indication can be provided to indicate when a set point value is available for modification. The remote control indication is adjustable by an execution module associated with the equipment. A set point latch can be provided for indicating when the set point value is modifiable by an automation agent.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: August 10, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Clinton D. Chapman, Han Yu, Mbaga Louis Ahorukomeye
  • Apparatus and methods for measuring the refractive index of a fluid
    Patent number: 11085877
    Abstract: Methods and apparatus are provided for determining the refractive index of a downhole fluid. Two unalike crystals are provided having faces in contact with fluid in the fluid flow line of a borehole tool. The crystals are chosen to have different refractive indices and/or different angles of incidence, but to provide total internal reflection for light that is directed through the crystals to the crystal/fluid interface. The measured attenuations for each crystal are used in conjunction with the known refractive indices and angles of incidence of said crystals to determine the refractive index of the fluid.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: August 10, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Richa Sharma, Raji Shankar, Terizhandur S. Ramakrishnan
  • Downhole sealing tool
    Patent number: 11085265
    Abstract: A sealing tool for conveyance within a tubular member within a wellbore extending into a subterranean formation. The sealing tool includes a mandrel and a eutectic sealing material disposed about the mandrel. The eutectic sealing material has a eutectic temperature at which the eutectic sealing material melts. The sealing tool also includes means for heating the eutectic sealing material to at least the eutectic temperature. The eutectic sealing material is transferred onto an inner surface of the tubular member by activating the heating means to heat the eutectic sealing material to at least the eutectic temperature to melt the eutectic sealing material.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 10, 2021
    Assignee: Schlumberger Technology Corporation
    Inventor: Oscar Rivas Diaz
  • System and methodology for providing bypass through a swellable packer
    Patent number: 11078743
    Abstract: A swellable packer comprises an elastomeric element and a mandrel extending through the elastomeric element. The elastomeric element is formed of an elastomer which undergoes swelling following contact with certain types of well fluids. The elastomeric element is sealed with respect to the mandrel and may be located along an undercut region of the mandrel. Additionally, the mandrel has an interior passage extending longitudinally through the mandrel and offset with respect to an external geometry of the mandrel. Accordingly, the mandrel is effectively constructed with relatively thicker and thinner wall sections. The thicker wall section or sections accommodates at least one bypass conduit which extends longitudinally through the mandrel.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 3, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Saikumar Mani, Nabil Batita, Nikhil Nair, Joao Mendonca, Oloruntoba Ogunsanwo
  • Screen assembly for a vibratory separator
    Patent number: 11077465
    Abstract: Systems and methods for a screen assembly configurable in a multi-screen configuration. The screen assembly in the multi-screen configuration includes a lower shaker screen and an upper shaker screen. A track is configured to be disposed on an inside wall of a vibratory separator and includes an upper retainer and a lower retainer. A screen clamping assembly is disposed in the track and includes a small spacer disposed between the lower shaker screen and the upper shaker screen in the track when the screen assembly is in the multi-screen configuration. An actuator is disposed in the track and has a clamped position where the actuator is actuated to provide a clamping force to clamp the lower shaker screen, the upper shaker screen, and the small spacer between the upper retainer and the lower retainer of the track.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: August 3, 2021
    Assignee: Schlumberger Technology Corporation
    Inventor: John Fedders
  • Use of particulate or fibrous materials in gravel pack applications
    Patent number: 11078402
    Abstract: Methods include drilling at least one interval of a wellbore with a water-based wellbore fluid producing a filtercake in the at least one interval of the wellbore. The methods also include gravel packing an interval of a wellbore traversing a subterranean formation with a gravel pack that comprises polyhydroxycarboxylic acid, and hydrolyzing the polyhydroxycarboxylic acid to degrade at least a portion of the filtercake.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 3, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Matthew Offenbacher, Balkrishna Gadiyar
  • Expanding and collapsing apparatus and methods of use
    Patent number: 11078746
    Abstract: The invention provides an expanding and collapsing apparatus and methods of use. The apparatus comprises a plurality of elements (52) assembled together to form a ring structure (54) around a longitudinal axis. The ring structure is operable to be moved between an expanded condition and a collapsed condition by movement of the plurality of elements. At least one set of structural elements (56) each having a first end and a second end are operable to move between the expanded condition and the collapsed condition by movement of the first end in an axial direction, and by movement of the second end in a radial dimension. At least one set of elements is operable to be moved by sliding with respect to one another in a direction tangential to a circle concentric with the ring structure.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: August 3, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Gareth Brown, Robin McGowan
  • Pressure control equipment systems and methods
    Patent number: 11078758
    Abstract: A system includes one or more processors configured to provide one or more control signals to cause supply of electric power from a power supply to one or more electric actuators. The one or more electric actuators are configured to adjust one or more components of a cable pressure control equipment (PCE) stack.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: August 3, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Nicolas Arteaga, Emmanuel Guilhamon, Erwan Olliero, Silvestre Meza, Vikas Rakhunde
  • Creating radial slots in a subterranean formation
    Patent number: 11077521
    Abstract: A laser cutting apparatus conveyable within a casing lining at least a portion of a wellbore that extends into a subterranean formation. The laser cutting apparatus includes a housing, a deflector, a motor, a sensor, and a processing device. The deflector rotates relative to the housing to direct a laser beam to form a radial slot extending through the casing and into the subterranean formation. The motor rotates the deflector. The sensor generates information related to depth of the radial slot in real-time as the radial slot is formed by the laser beam. The processing device receives the information generated by the sensor and causes the motor to rotate the deflector based on the received information.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 3, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bernard Montaron, Douglas Pipchuk
  • BOP health monitoring system and method
    Patent number: 11078742
    Abstract: A blowout preventer (BOP) health monitoring system includes a controller having a tangible, machine readable-medium storing one or more instructions executable by a processor. The one or more instructions are configured to receive feedback from a sensor, where the feedback is indicative of a pressure within a BOP stack over time, determine a position of a plurality of components of the BOP stack, determine a start point and an end point of a pressure test based on the feedback, determine a decay and a hold duration of the pressure test based on the feedback, the start point, and the end point, determine a health index of the BOP stack based on the decay and the hold duration, and provide an output indicative of a condition of the BOP stack based on the health index.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: August 3, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Se Un Park, Rajesh Kumar Bade, Daniel Barker, Daniel Edgardo Viassolo
  • Drilling energy calculation based on transient dynamics simulation and its application to drilling optimization
    Patent number: 11073009
    Abstract: A method for drilling a well includes applying energy input to a drill string (31) by at least one of rotating the drill string (31) from surface and operating a drilling motor (41) disposed in the drill string (31) to operate a drill bit (2) at a bottom of the drill string (31); an amount of the applied energy not consumed in drilling formations caused by at least one of motion, deformation, and interaction of the drill string (31) is calculated; an amount of the applied energy used to drill formations below the drill bit (2) is calculated; and at least one drilling operating parameter is adjusted based on energy calculation before or during drilling operation.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 27, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Wei Chen, Christopher Bogath, Richard John Harmer, Yani Dong, Chanhui Bin, Yuelin Shen, Sujian Huang
  • NMR ASIC
    Patent number: 11073633
    Abstract: An NMR system includes a radio frequency (RF) NMR application-specific integrated circuit (ASIC) chip configured to generate an RF output signal and a rectifier configured to receive the RF output signal and convert the RF output signal to (a) a direct current (DC) pulsed field gradient (PFG) signal or (b) a DC trigger signal for at least one of (i) activating at least one component of an NMR system external to the NMR RF ASIC chip and (ii) synchronizing at least one component of an NMR system external to the NMR RF ASIC chip.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: July 27, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Yi-Qiao Song, Soumyajit Mandal, Yiqiao Tang, David McCowan
  • Compensated spectroscopy measurements
    Patent number: 11073635
    Abstract: Elemental concentrations in subterranean formations may be determined using neutron spectroscopy. For example, neutrons may be emitted by a downhole tool into the formation and produce gamma rays via inelastic scattering of fast neutrons or capture of slow neutrons. The borehole surrounding a downhole tool may introduce artifacts in the neutron spectroscopy measurement. Embodiments of the present disclosure are directed to techniques that reduce artifacts signals in downhole tools that include one or multiple detectors based at least in part on the inelastic and capture measurements.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 27, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Tong Zhou, David Rose, Jeffrey Miles