Patents Assigned to WesternGeco L.L.C.
  • Patent number: 10054701
    Abstract: A system for storing seismic data recording units. The system may include a storage unit for storing the seismic data recording units. The system may also include a storage container disposed inside the storage unit. The storage container may define a volume of space in which the seismic data recording units are stored. The system may also include a cable coupled to one of the seismic data recording units. The cable may transfer seismic data from the one of the seismic data recording units to the storage unit.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: August 21, 2018
    Assignee: WesternGeco L.L.C.
    Inventor: Einar Holst
  • Patent number: 10054704
    Abstract: Data representing a first multiple is predicted, based on first survey data for a target structure, using a multidimensional model of a layer in which the first multiple occurs. Modified survey data is produced by performing a subtraction of the predicted data representing the first multiple from the first survey data. Based on the modified survey data, data representing a second multiple is predicted using the multidimensional model.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 21, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Richard Bisley, Ian Moore
  • Patent number: 10048395
    Abstract: A seismic sensor device includes an elongated housing for placement at least partially into an earth surface. A plurality of particle motion sensors are contained in the elongated housing to measure translational data in a first direction, where plural pairs of the particle motion sensors are spaced apart along a second, different direction along a longitudinal axis of the elongated housing. A communication interface communicates the measured translational data to a computer system configured to compute a gradient based on respective differences of the measured translational data of the corresponding plural pairs of the particle motion sensors, and compute one or more of rotation data and divergence data using the gradient.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: August 14, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Nicolas Goujon, Pascal Edme, Artem Kashubin, Everhard Johan Muijzert, Claudio Bagaini
  • Patent number: 10031247
    Abstract: A technique includes receiving data indicative of a first measurement acquired by a rotation sensor on a seismic streamer and based on the first measurement, estimating a torque noise present in a measurement acquired by a second sensor on the streamer. The technique includes attenuating the torque noise based on the estimate.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: July 24, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Ahmet Kemal Ozdemir, Vidar Anders Husom, Nicolas Goujon, Oeyvind Teigen, Lars Borgen
  • Patent number: 9971053
    Abstract: Methods and systems for survey operations are provided. In some embodiments, crossline measurement data measured by at least one survey receiver is received. Based at least in part on a characteristic of the crossline measurement data, an option from among a plurality of candidate options is selected, where the selected option is for use in an action relating to survey of a target structure.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: May 15, 2018
    Assignee: WesternGeco L.L.C.
    Inventors: Susanne Rentsch-Smith, Philippe Caprioli, Massimiliano Vassallo, Dirk-Jan Van Manen
  • Patent number: 9869787
    Abstract: Methods and systems for efficiently acquiring towed streamer marine seismic data are described. One method and system comprises positioning a plurality of source-only tow vessels and one or more source-streamer tow vessels to acquire a wide- and/or full-azimuth seismic survey without need for the spread to repeat a path once traversed. Another method and system allows surveying a sub-sea geologic feature using a marine seismic spread, the spread smartly negotiating at least one turn during the surveying, and shooting and recording during the turn. This abstract is provided to comply with the rules requiring an abstract, allowing a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: January 16, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Nicolae Moldoveanu, Alan Strudley
  • Patent number: 9857491
    Abstract: Various implementations described herein are directed to a marine seismic acquisition system. The marine seismic acquisition system may include a first vessel towing a first source array and a first plurality of streamers. The first vessel is configured to travel along a first coil path. The marine seismic acquisition system may include a second vessel towing a second source array and a second plurality of streamers. The second vessel is configured to travel along a second coil path. The marine seismic acquisition system may include a third vessel towing a third source array and a third plurality of streamers. The third vessel is configured to travel along a third coil path. The marine seismic acquisition system may also include a fourth vessel towing a fourth source array and a fourth plurality of streamers. The fourth vessel is configured to travel along a fourth coil path.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: January 2, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Nicolae Moldoveanu, Steven Fealy
  • Patent number: 9857485
    Abstract: A marine survey acquisition system. The system may include a vessel for towing a marine survey spread. The marine survey spread may include streamers, marine vibrators and a cable. The cable may be coupled to a respective streamer from among the streamers and one of the marine vibrators. The cable may power the respective streamer and the one of the marine vibrators. The one of the marine vibrators may emit energy at a high frequency range.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 2, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Emmanuel Coste, Nicolas Goujon, Robert Montgomery Laws
  • Patent number: 9852373
    Abstract: A method can include receiving data associated with a geologic environment; based on at least a portion of the data, estimating relationships for multiple properties of the geologic environment; and based at least in part on the relationships, performing simultaneous joint inversion for at least one property of the geologic environment.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: December 26, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventor: Michele De Stefano
  • Patent number: 9835749
    Abstract: Apparatus and methods for acquiring seismic data using a seabed seismic data cable positioned on a seabed are described, including correcting for the effect of one or more sensor non-linear motions, which improves accuracy of seismic data. One or multiple non-linear movements of the sensor may be corrected for. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: December 5, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Robbert J. De Kok, Nicolas Goujon, Leendert Combee, Aslaug Stroemmen Melboe
  • Patent number: 9829595
    Abstract: A technique includes disposing a particle motion sensor on a spread of at least one streamer and using the particle motion sensor to acquire a measurement of a signal, which is transmitted from an acoustic transmitter. The technique includes determining a heading of the particle motion sensor based at least in part on the measurement.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: November 28, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Nicolas Goujon, Svein Arne Frivik
  • Patent number: 9766359
    Abstract: Methods for efficiently acquiring full-azimuth towed streamer survey data are described. The methods use multiple vessels to perform coil shooting.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: September 19, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Nicolae Moldoveanu, Steven Fealy
  • Patent number: 9759828
    Abstract: A technique includes receiving data acquired by a seismic sensor on a spread of at least one streamer. The data are indicative of a seismic source signature that is produced by a source seismic to penetrate into the Earth to acquire geophysical information in connection with a seismic survey. The technique includes processing the data to determine a position on the streamer relative to a reference position not disposed on the streamer.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: September 12, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Halvor Sehested Groenaas, Svein Arne Frivik
  • Patent number: 9759825
    Abstract: An apparatus includes particle motion sensors and a streamer that contains the particle motion sensors. The streamer is towed in connection with a seismic survey, and the towing of the streamer produces a turbulent flow. The streamer includes an inner cable and a fluid containing layer. The inner cable includes a material to circumscribe and extend along a longitudinal axis of the streamer and circumscribe at least one of the particle motion sensors. The fluid containing layer surrounds the inner cable to reduce noise that is otherwise sensed by the particle motion sensors due to the turbulent flow.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 12, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Patrick Perciot, Lars Borgen, Oeyvind Teigen, Nicolas Goujon
  • Patent number: 9753163
    Abstract: Methods and apparatuses for acquiring marine seismic data to generate images or determine properties of an interior section of the Earth using simultaneous marine vibrator sweeps and methods for processing the acquired seismic data. Phase of sweeps produced by the marine vibrator(s) are controlled to provide for removal of crosstalk. The phases between marine vibrator sweeps may be random or controlled to have a predetermined/desired phase difference. The predetermined phases may be determined to minimize the crosstalk between sweeps based on known seismic velocity of the survey area.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: September 5, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventor: Robert Montgomery Laws
  • Patent number: 9753164
    Abstract: Systems and methods for asynchronously acquiring seismic data are described, one system comprising one or more seismic sources, a plurality of sensor modules each comprising a seismic sensor, an A/D converter for generating digitized seismic data, a digital signal processor (DSP), and a sensor module clock; a seismic data recording station; and a seismic data transmission sub-system comprising a high precision clock, the sub-system allowing transmission of at least some of the digitized seismic data to the recording station, wherein each sensor module is configured to periodically receive from the sub-system an amount of the drift of its clock relative to the high precision clock. This abstract is provided to comply with rules requiring an abstract to ascertain the subject matter of the disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: September 5, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Simon Barakat, Kambiz Iranpour, Daniel Golparian
  • Patent number: 9753167
    Abstract: Rotation data and translational data are received. A calibration operator is determined based on the rotation data and translational data, where the calibration operator is useable to relatively calibrate the rotation data and the translation of data.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: September 5, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Pascal Edme, Everhard Johan Muyzert
  • Patent number: 9726772
    Abstract: Systems, media, and methods for processing seismic data are disclosed. For example, in one embodiment, the method may include receiving a plurality of partial image partitions of a migrated seismic image, and stacking the plurality of partial image partitions such that a first image is generated. The method may also include aligning the plurality of partial image partitions based at least partially on the first image. Aligning may include adjusting at least one of the plurality of partial image partitions and generating a displacement field. The method may also include, based at least in part on the displacement field, stacking the plurality of aligned partial image partitions to generate a second image. The method may further include based at least in part on the second image, realigning the plurality of aligned partial image partitions.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 8, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Chunpeng Zhao, Ruoyu Gu, Ryan King, Alfonso Gonzalez
  • Patent number: 9709687
    Abstract: A multiple axis sensor assembly includes an enclosure and encapsulated microelectromechanical system (MEMS) sensors. The encapsulated sensors are disposed inside the enclosure and are mounted in different orientations, which correspond to different axes of the sensor assembly. A controller of the sensor assembly is disposed in the enclosure and electrically coupled to the MEMS sensors.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: July 18, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Hans Paulson, Vidar A. Husom, Nicolas Goujon
  • Patent number: 9709688
    Abstract: Measurement data is received from first and second seismic sensors, where the first and second seismic sensors are oriented in opposite directions. Each of the first and second seismic sensors has a sensing element responsive to pressure and particle motion. The signals can be combined to remove the particle motion component of the measurement data and obtain pressure-only data. Alternatively, the signals can be combined to deghost the received measurement data.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: July 18, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventor: Nicolas Goujon