Patents Assigned to CGG SERVICES
  • Instantaneous frequency modulation acquisition scheme for seismic sources
    Patent number: 9778385
    Abstract: Computing device, computer software and methods for generating sweep signals corresponding to plural sources that generate seismic waves. The method includes selecting a nominal sweep signal (S0); applying a perturbation (P) to the nominal sweep signal (S0); and calculating the sweep signals (Sn) by varying the perturbation (P), each sweep signal corresponding to a seismic source.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: October 3, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Kaelig Castor, Thomas Bianchi, John Sallas
  • Device and method for continuous data acquisition
    Patent number: 9759827
    Abstract: Method for generating an excitation signal for a first vibratory seismic source so that the first vibratory seismic source is driven with no listening time. The method includes a step of determining a first target spectrum for the first vibratory seismic source; a step of setting a first group of constraints for the first vibratory seismic source; and a step of generating a first excitation signal for the first vibratory seismic source based on the first group of constraints and the first target spectrum. The first seismic traces recorded with plural receivers can be identified when the first vibratory seismic source is driven with no listening time, based on the first excitation signal.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: September 12, 2017
    Assignee: CGG SERVICES SAS
    Inventors: John Sallas, Robert Dowle, Laurent Ruet, Benoit Teyssandier
  • Geophysical survey node rolling method and system
    Patent number: 9753174
    Abstract: A method for acquiring geophysical data includes connecting a power module comprising a data transfer port and a power transfer port to a geophysical data acquisition device to provide a geophysical sensing node and deploying the geophysical sensing node. While deployed, data is transferred from the geophysical data acquisition device to the power module via the data transfer port and power is transferred from the power module to the geophysical data acquisition device via the power transfer port. The method also includes retrieving the geophysical sensing node and replacing the power module with a newly charged power module to provide a newly charged geophysical sensing node, and deploying the newly charged geophysical sensing node. Corresponding systems are also disclosed herein.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: September 5, 2017
    Assignee: CGG SERVICES SAS
    Inventor: Peter Maxwell
  • P-wave and S-wave separation of seismic data in the presence of statics and irregular geometry
    Patent number: 9753166
    Abstract: Methods and systems for separating P-S wave field data are described. Slowness values for the PP mode and the PS mode are estimated and are, typically, unequal based on aliased and/or irregularly sampled data. A calculation, in the space-time domain, based on a matrix of equations, generates separated P-wave and S-wave data. The separated P-wave data and S-wave data are output for further imaging.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 5, 2017
    Assignee: CGG SERVICES SAS
    Inventor: Richard Bale
  • DEVICE AND METHOD FOR WEIGHTED SPARSE INVERSION FOR SEISMIC PROCESSING
    Publication number: 20170248716
    Abstract: Computing device, computer instructions and method for processing input seismic data d. The method includes receiving the input seismic data d recorded in a data domain, solving a linear inversion problem constrained by input seismic data d to obtain a model domain and its energy, wherein the linear inversion problem is dependent on sparseness weights that are simultaneously a function of both time and frequency, reverse transforming the model domain energy to the data domain, and generating an image of a surveyed subsurface based on the reverse transformed model domain energy.
    Type: Application
    Filed: November 13, 2015
    Publication date: August 31, 2017
    Applicant: CGG SERVICES SAS
    Inventor: Gordon POOLE
  • SIMULTANEOUS MULTI-VINTAGE TIME-LAPSE FULL WAVEFORM INVERSION
    Publication number: 20170248715
    Abstract: Simultaneous inversion of multi-vintage seismic data obtains seismic data for vintages and generates an initial earth model for each vintage. A cost function includes a data norm term having for at least one pair of vintages of seismic data a difference norm between a difference in obtained seismic data for the at least one pair of vintages and a difference in modeled seismic data for the at least one pair of vintages. The cost function also includes a model norm term for each pair of vintages selected from at least three vintages of seismic data. Each model norm term includes a difference norm between earth models for a given pair of vintages. A closure relationship is imposed on all earth models. The earth models are adjusted for the vintages to drive the cost function to a minimum and to produce updated earth models.
    Type: Application
    Filed: September 22, 2015
    Publication date: August 31, 2017
    Applicant: CGG SERVICES SAS
    Inventors: Tim SEHER, Henning HOEBER, Andrew RATCLIFFE
  • WAVE-FIELD RECONSTRUCTION USING A REFLECTION FROM A VARIABLE SEA SURFACE
    Publication number: 20170248721
    Abstract: Computing device, computer instructions and method for processing energy at a free-surface reflection relating to an air-water interface. The method includes receiving input seismic data recorded with seismic sensors; receiving wave-height data that describes an actual shape of a top surface of a body of water; processing up-going energy at a receiver and down-going energy following a reflection at the sea-surface, using the input seismic data and a linear operator modified to take into account the wave-height data; and generating an image of the subsurface based on the up-going energy or the down-going energy or a combination of the input seismic data and one of the up-going or down-going energy.
    Type: Application
    Filed: September 9, 2015
    Publication date: August 31, 2017
    Applicant: CGG SERVICES
    Inventors: Gordon POOLE, Simon KING
  • Virtual marine seismic spread acquisition
    Patent number: 9746570
    Abstract: Presented are methods and a system for efficiently acquiring seismic data based on a virtual seismic spread. A streamer vessel and a source vessel are used in combination and in a specific spatial arrangement collect seismic data. The source arrays can be fired simultaneously, creating blended seismic data that is separated with a deblending algorithm or sequentially to collect seismic data directly. The virtual seismic spread can be configured to reduce survey time or decrease capital costs and health safety and environment exposure based on the size of the streamer array towed by the streamer vessel.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 29, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Thomas Mensch, Damien Grenié, Risto Siliqi
  • Systems and methods for performing dual-scale interpolation
    Patent number: 9746567
    Abstract: Systems and methods are provided for processing seismic data and displaying an output associated with the seismic data. A method includes: separating the seismic data into a fine-scale dataset and a coarse-scale dataset, wherein each dataset includes a non-zero portion of the data; applying a first interpolation to the coarse-scale dataset which results in an interpolated coarse-scale dataset; applying a second interpolation to the fine-scale dataset which results in an interpolated fine-scale dataset, wherein the first and second interpolation are different interpolations; summing together the interpolated coarse-scale dataset and the interpolated fine-scale dataset which results in a summed interpolated dataset; and displaying at least one image based on the summed interpolated dataset.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: August 29, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Johannes Grimm, Lynn Burroughs
  • Stationary marine vibratory source for seismic surveys
    Patent number: 9746569
    Abstract: A seismic data acquisition system is configured to collect seismic data. The system includes a marine source array configured to be attached to a fixed structure floating at the water surface and including vibratory source elements; and a controller configured to control the vibratory source elements so that a beam formed by the source array is steerable.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 29, 2017
    Assignee: CGG SERVICES SAS
    Inventors: John Sallas, Dominique Thomas
  • Method and system for augmenting frequency range of conventional marine seismic source with low-frequency
    Patent number: 9739900
    Abstract: A resonant source element is configured to generate seismic waves in water. The resonant source element includes a housing having two openings covered by first and second pistons, wherein the first and second pistons are configured to freely translate relative to the housing to generate the seismic waves; and a high-pressure system configured to discharge inside the housing and to actuate the first and second pistons. The first and second pistons are configured to oscillate after the high-pressure system is fired to generate low-frequency seismic waves.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 22, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Robert Dowle, Hervé Richer De Forges, John Sallas
  • Method and system for broadband measurements using multiple electromagnetic receivers
    Patent number: 9733380
    Abstract: An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a frame; a first EM receiver attached to the frame and configured to measure the EM signals within a first frequency range; and a second EM receiver attached to the frame and configured to measure the EM signals within a second frequency range. Corresponding axes of the first and second EM receivers are substantially parallel to each other.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: August 15, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Philip Miles, Jason Berringer
  • Combined wide and narrow azimuth seismic data acquisition system and method
    Patent number: 9733376
    Abstract: There is a method for acquiring seismic data over a survey area. The method includes deploying streamer and source vessels to acquire seismic data along a survey line; performing one pass with the streamer and source vessels along the survey line for collecting wide azimuth (WAZ) data; and performing another pass with the streamer and source vessels along the survey line for collecting narrow azimuth (NAZ) data.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: August 15, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Mickael Landais, Chu-Ong Ting, Thomas Mensch, Damien Grenie
  • Repeatability indicator based on shot illumination for seismic acquisition
    Patent number: 9733374
    Abstract: Methods and systems for similarity indicator calculation associated with seismic data acquisition are described. A similarity indicator value can, for example, be based on a normalized partitioned intensity uniformity (PIU) metric. In another aspect, shot imprints are compared by mapping a base (reference) shot imprint onto a current sample of a shot imprint before calculating the similarity indicator value. The similarity indicator value is associated with the shot imprint location used in the calculation and allows re-shooting of only the areas where an insufficient quality of shot data is detected based on a preconfigured threshold value for the similarity indicator.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: August 15, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Julie Svay, Nicolas Bousquie, Thomas Mensch, Risto Siliqi
  • SYSTEMS AND METHODS FOR IMPROVED COUPLING OF GEOPHYSICAL SENSORS
    Publication number: 20170219726
    Abstract: A system and method for coupling geophysical sensors is provided. A method for deploying a geophysical sensor includes treating an installation location with a soil stabilizing material. The method also includes pressing a die (906) into the installation location and after a predetermined time period, removing the die from the installation location. The method further includes installing a geophysical sensor in the installation location.
    Type: Application
    Filed: July 20, 2015
    Publication date: August 3, 2017
    Applicant: CGG SERVICES SAS
    Inventors: Jason JUROK, Thomas BIANCHI
  • System and method for predicting the front arrival time in reservoir seismic monitoring
    Patent number: 9695684
    Abstract: A system and method for predicting the front arrival time in seismic monitoring is disclosed The method includes measuring or computing a physical property reference signature at a calibration point, the physical property reference signature based on a change in a physical property over time due to a well injection; computing a seismic attribute reference signature at the calibration point based on the physical property reference signature; identifying a reference marker, the reference marker corresponding to a change in the seismic attribute reference signature at the calibration point over time; detecting a measured marker, the measured marker corresponding to a change in a seismic attribute of a recorded dataset over time; calibrating the measured marker; and calculating a marker arrival time for a location other than the calibration point.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: July 4, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Laurene Michou, Jean-Charles Ferran
  • Method and device for processing seismic data
    Patent number: 9696443
    Abstract: Apparatus, computer instructions and method for processing seismic data related to a subsurface of a body of water. The method includes inputting data indicative of recordings made by detectors disposed on a depth-changing profile in response to an acoustic wave reflected from the subsurface; applying a matched mirror migration procedure to the data, wherein the matched mirror migration procedure uses an up-traveling U wave and a down-traveling D wave, at least one of the up-traveling U wave or the down-traveling D wave being constructed based on (i) actual positions of the detectors disposed on the depth-changing profile and corresponding recordings, and (ii) fictitious mirror positions of the actual detectors on the depth-changing profile and corresponding recordings with a changed sign; and generating in a processor an image of the subsurface based on the matched mirror migration procedure.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: July 4, 2017
    Assignee: CGG SERVICES SAS
    Inventor: Robert Soubaras
  • Process for separating data recorded during a continuous data acquisition seismic survey
    Patent number: 9690003
    Abstract: Method for separating signals recorded by a seismic receiver and generated with at least two vibratory seismic sources driven with no listening time. The method includes receiving seismic data that includes data d recorded by the seismic receiver and data related to the first and second vibratory seismic sources; computing a source separation matrix based on the data related to the first and second vibratory seismic sources; calculating first and second earth impulse responses HA and HB corresponding to the two vibratory seismic sources, respectively, based on the data d recorded by the seismic receiver, the data related to the two vibratory seismic sources and the source separation matrix; and separating the signals recorded by the seismic receiver based on the first and second earth impulse responses HA and HB such that signals the two vibratory seismic sources are disentangled.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 27, 2017
    Assignee: CGG SERVICES SAS
    Inventor: John Sallas
  • Wavefield modelling and 4D-binning for seismic surveys from different acquisition datums
    Patent number: 9684085
    Abstract: A method for maximizing a repeatability between a base seismic survey and a monitor seismic survey of a same surveyed subsurface during a 4-dimensional (4D) project. The method includes receiving first seismic data associated with the base seismic survey; receiving second seismic data associated with the monitor seismic survey, wherein the monitor seismic survey is performed later in time than the base seismic survey; estimating subsurface reflection-points and incidence angles; determining 4D-binning based on the estimated subsurface reflection-points and incidence angles; and maximizing the repeatability between the first seismic data and the second seismic data by using the 4D-binning.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: June 20, 2017
    Assignee: CGG SERVICES SAS
    Inventors: Sergio Grion, Ross Haacke
  • Deflector for marine seismic survey system
    Patent number: 9676454
    Abstract: A deflector is configured to be attached to a cable towed by a vessel. The deflector includes a foil configured to provide a lift force; first and second bulbs attached to opposite ends of the foil; and a joint attached to the foil and configured to receive the cable. The first and second bulbs are offset by a predetermined distance from a plane that extends through the foil, and at least one of the first and second bulbs has a longitudinal axis that makes an angle (?) with a cord of the foil, the cord extending in the plane.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 13, 2017
    Assignee: CGG SERVICES SAS
    Inventor: Frédéric Simonnot