Patents Assigned to WesternGeco L.L.C.
  • Patent number: 10928528
    Abstract: Translational data in a first direction is measured by particle motion sensors contained in an elongated housing of a sensor device provided at an earth surface. The particle motion sensors are spaced apart along a second, different direction along a longitudinal axis of the elongated housing. Rotation data around a third direction is computed based at least in part on computing a gradient of the translational data with respect to the second direction.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: February 23, 2021
    Assignee: WesternGeco L.L.C.
    Inventors: Nicolas Goujon, Pascal Guillaume Edme, Artem Kashubin, Everhard Johan Muijzert
  • Patent number: 10871584
    Abstract: Disclosed herein are implementations of various technologies for a method for seismic data processing. The method may receive seismic data for a region of interest. The seismic data may be acquired in a seismic survey. The method may determine an exclusion criterion. The exclusion criterion may provide rules for selecting shot points in the acquired seismic data. The method may determine sparse seismic data using statistical sampling based on the exclusion criterion and the acquired seismic data. The method may determine simulated seismic data based on the earth model and shot points corresponding to the sparse seismic data. The method may determine an objective function that represents a mismatch between the sparse seismic data and the simulated seismic data. The method may update the earth model using the objective function.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 22, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Kun Jiao, Richard Timothy Coates, Wei Huang, Alan Schiemenz, Denes Vigh
  • Patent number: 10838091
    Abstract: A sensor device includes an elongated housing containing particle motion sensors spaced apart along a longitudinal axis of the elongated housing, where the elongated housing has a width. A second portion includes communication circuitry to communicate over a communication medium, the second portion coupled to the elongated housing and having a width that is greater than the width of the elongated housing. The second portion includes an impact surface that is above a top surface of the second portion, the impact surface to receive an impact force for deploying the sensor device into a ground surface. The second portion further includes a connector structure to mechanically connect the impact surface to the elongated housing.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: November 17, 2020
    Assignee: WesternGeco L.L.C.
    Inventor: Seth Ian Friedly
  • Patent number: 10816683
    Abstract: A seismic data recording unit. The seismic data recording unit may include a housing and retractable arms coupled to the housing. The seismic data recording unit may include a respective seismic sensor coupled proximate the end of a retractable arm. The retractable arm may move from a position on or proximate the housing to a position away from the housing.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 27, 2020
    Assignee: WesternGeco L.L.C.
    Inventors: Claudio Bagaini, Einar Holst
  • Patent number: 10809403
    Abstract: In some examples, an unmanned marine surface vessel connected to a three-dimensional array of sensors positioned are deployed in proximity with an obstruction area of a survey environment. The three-dimensional array of sensors positioned in proximity with the obstruction area of the survey environment records signals that are affected by a target structure.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 20, 2020
    Assignee: WesternGeco L.L.C.
    Inventors: Nicolae Moldoveanu, Sudhir Pai
  • Patent number: 10746896
    Abstract: An airborne vehicle includes a positioning system to acquire information relating to a position of the airborne vehicle, and a measurement system to transmit signals to and receive signals from survey sensors of a survey arrangement used to survey a target structure, the received signals indicating positions of the respective survey sensors.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 18, 2020
    Assignee: WesternGeco L.L.C.
    Inventors: Kambiz Iranpour, Guillaume Jean Daniel Tamboise, Einar Holst
  • Patent number: 10739478
    Abstract: Described herein are implementations of various technologies for a method for seismic data processing. The method may receive seismic data for a region of interest. The seismic data may be acquired in a seismic survey. The method may determine sparse seismic data by selecting shot points in the acquired seismic data using statistical sampling. The method may determine simulated seismic data based on an earth model for the region of interest, a reflection model for the region of interest, and the selected shot points. The method may determine an objective function that represents a mismatch between the sparse seismic data and the simulated seismic data. The method may update the reflection model using the objective function.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 11, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Richard T. Coates, Darrell Coles, Wei Dai, Kun Jiao
  • Patent number: 10718877
    Abstract: A method of analyzing measured microseismic events obtained from monitoring induced hydraulic fracturing of underground geological formations, the method involving (a) postulate a geomechanical model for the region bounding the microseismic events, the model including the parameters vertical stress, reservoir pore pressure, minimum horizontal stress and the orthogonal horizontal stress, (b) select a microseismic event and (c) for the selected microseismic event assume an associated slippage plane with a postulated orientation, (d) apply the geomechanical model to the postulated orientation to determine the resulting shear stress and normal stress applied to the postulated orientation, (e) repeat steps (c) and (d) to produce a number of postulated slippage planes each with their own shear stress and normal stress attributable to them, (f) select the fracture plane having the highest ratio of shear stress to normal stress as being the fracture plane most likely to be representative of a real slippage plane cons
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: July 21, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventor: Michael John Williams
  • Patent number: 10656296
    Abstract: A method for processing seismic data is provided, in the method a new attribute indicating rock fabric properties of a subterranean section of the earth is processed from reflection seismic data obtained from the subterranean section of the earth. The processed rock fabric attribute may be used to determine properties of and/or generate an image of the subterranean section of the earth.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: May 19, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Martin Haege, Shawn Maxwell, Lars Kristian Sønneland
  • Patent number: 10637641
    Abstract: In some examples, a sensor node comprises a sensor to measure survey data of a target structure. The sensor node receives a wireless synchronization signal, and synchronizes an operation of the sensor node based on the wireless synchronization signal.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 28, 2020
    Assignee: WesternGeco L.L.C.
    Inventor: Kambiz Iranpour
  • Patent number: 10620330
    Abstract: Translational data acquired by at least one seismic sensor is received. Gradient sensor data acquired by at least one gradient sensor is received. Estimated translational data at a position away from at least one position of the at least one seismic sensor is computed, where the computing is based on the gradient sensor data and the translational data.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: April 14, 2020
    Assignee: WesternGeco L.L.C.
    Inventors: Pascal Edme, Everhard Johan Muijzert
  • Patent number: 10613139
    Abstract: Embodiments disclosed herein are directed towards systems and methods for electric current leakage detection in a land seismic system. Embodiments may include generating at least one test signal using a digital to analog converter “DAC” circuitry, wherein the DAC circuitry includes an output operatively connected to earth ground. Embodiments may further include alternately grounding a positive path to an analog to digital converter “ADC” circuitry during a first time window and a negative path to the analog to digital converter during a second time window while measuring an ADC signal. Embodiments may also include determining an average amplitude of the first time window and the second time window and determining a leakage resistance based upon, at least in part, the average amplitude of the first time window and the second time window.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: April 7, 2020
    Assignee: WesternGeco L.L.C
    Inventors: Kambiz Iranpour, Stefan Johansson, Hans Paulson
  • Patent number: 10605599
    Abstract: A gradient sensor device includes a support structure providing a surface, and at least three particle motion sensors coupled with and/or arranged on the support structure to measure translational data in a first direction. The particle motion sensors have an arrangement that enables calculation of a spatial gradient of the translational data in a second direction different from the first direction.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: March 31, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Everhard Johan Muijzert, Pascal Guillaume Edme
  • Patent number: 10578759
    Abstract: Various implementations directed to quality control and preconditioning of seismic data are provided. In one implementation, a method may include receiving particle motion data from particle motion sensors disposed on seismic streamers. The method may also include performing quality control (QC) processing on the particle motion data. The method may further include performing preconditioning processing on the QC-processed particle motion data. The method may additionally include attenuating noise in the preconditioning-processed particle motion data.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: March 3, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Ahmet Kemal Ozdemir, Bent Andreas Kjellesvig
  • Patent number: 10571583
    Abstract: Methods of acquiring and processing seismic data using derivative sensors, such as strain sensors, that facilitate ground roll noise attenuation with seismic interferometry are disclosed. The methods use both seismic data and their spatial derivatives in computing ground-roll noises which are removed from processed seismic data.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 25, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: David Fraser Halliday, Julian Edward Kragh, Filippo Broggini
  • Patent number: 10557955
    Abstract: Acquiring seismic data using time-distributed sources and converting the acquired data into impulsive data using a multiple-frequency approach. The methods are performed in frequency-source location domain, frequency-wavenumber domain, or frequency-slowness domain. The methods are applicable to single source acquisition or simultaneous source acquisition.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: February 11, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventor: David Fraser Halliday
  • Patent number: 10551517
    Abstract: Synthetic survey data is generated using a two-way or one-way wave propagator based on a current model of a target structure. The current model is modified to reduce a difference between the synthetic survey data and observed survey data, while maintaining unchanged a velocity component of the current model, where the modifying of the current model produces a modified model. The modified model is used to reduce an adverse effect of multiples in the target structure, or to promote a favorable effect of multiples in the target structure.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: February 4, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: James E. Rickett, Clement Kostov, Anna Marjatta Makinen
  • Patent number: 10545261
    Abstract: A method for modelling geomechanical effects in the subsurface by conditioning geomechanical model parameters to time-lapse observations. The model is driven by displacement boundary conditions derived from observed time-lapse travel time shift and time strain. The displacements at the boundaries of the model are extracted from time-lapse data, converted from travel time shift to depth shift and lateral shifts if necessary, and applied as displacement increments on the initial geomechanical model. Subsequently, increments of stresses and strains are calculated by the geomechanical simulator, and time-lapse related parameters in the interior of the model are compared with the time-lapse observations. This enables a comprehensive study of mismatch between simulations and observations that can be used to update material properties, faults, fractures and the rock strain-velocity change relationship (R factor).
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 28, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Jarle Haukås, Jan Øystein Haavig Bakke, Michael Hermann Nickel, Lars Kristian Sønneland
  • Patent number: 10545252
    Abstract: A technique includes receiving seismic data indicative of measurements acquired by seismic sensors. The measurements are associated with a measurement noise. The technique includes estimating at least one characteristic of the measurement noise and deghosting the seismic data based at least in part on the estimated characteristic(s) of the measurement noise.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: January 28, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Ahmet Kemal Ozdemir, Philippe Caprioli, Ali Ozbek, Dirk-Jan Van Manen, Massimiliano Vassallo
  • Patent number: 10539695
    Abstract: A technique for reconstructing a seismic wavefield includes receiving data over one or more channels of a plurality of channels from a plurality of stations. The data is recorded by a plurality of seismic receivers and represent measurements of properties of the seismic wavefield. Each station includes a region in space including one or more seismic receivers. Each channel either measures a property of the seismic wavefield or a property of the seismic wavefield after the seismic wavefield has undergone a known transformation. At least one channel is derived as a function of one or more other channels. The technique includes using a processor based machine to process the data to model the seismic wavefield as a sum of basis functions; apply to the basis functions at least one forward transformation that describes the measurements received over the channel(s); and determine optimum basis functions based at least in part on the measurements.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: January 21, 2020
    Assignee: WESTERNGECO L.L.C.
    Inventors: Ali Ozbek, Massimiliano Vassallo, David Fraser Halliday, Jon-Fredrik Hopperstad, Robert Montgomery Laws