Patents Assigned to CGG SERVICES
  • ACTIVATION ELECTRONICS AND METHOD FOR SEISMIC EQUIPMENT RECOVERY DEVICE
    Publication number: 20140241122
    Abstract: An activation module to be used in a seismic equipment recovery device. The activation module includes a processor; a pressure transducer configured to measure a pressure of the ambient and provide the measured pressure to the processor; a memory connected to the processor and configured to store information related to a pressure or depth threshold; and a communication unit connected to the memory and configured to exchange information with an external device. The processor is configured to send a deployment instruction to an inflation mechanism to inflate a flotation bag based on the measured pressure and the stored information.
    Type: Application
    Filed: November 19, 2013
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: Damien PONCEAU, Pierre LE ROUX
  • MARINE ACOUSTIC PROJECTOR PISTON FOR VIBRATOR SOURCE ELEMENT AND METHOD
    Publication number: 20140238771
    Abstract: There is a method for determining a shape and structure of a piston for a vibratory seismic source element. The method includes generating a cost function J that is function of plural variables; applying plural constraints to the cost function J; calculating a piston shape and piston design that fulfills the plural constraints; and modifying the calculated piston shape and piston design based on practical implementations of the vibratory source element.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: Benoit TEYSSANDIER, Robert DOWLE, Dominique THOMAS
  • METHODS AND APPARATUSES FOR RESTORING LOW ROUGHNESS OF OUTER SURFACE OF A DEVICE USED UNDERWATER FOR SEISMIC SURVEYS
    Publication number: 20140242261
    Abstract: Various methods preserve or restore the low roughness throughout an outer shell of a device (e.g., a streamer) used underwater for seismic surveys, by applying various substances that fill micro-cracks, are easy to polish or are self-healing. Apparatuses used to implement these methods may be used shortly before the devices are deployed in water, for example, having the device passing through such an apparatus as it is moved to be deployed in water.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: Raphaël MACQUIN, Hélène TONCHIA, Karine DESRUES
  • MARINE SEISMIC APPARATUS WITH MARINE GROWTH RETARDANT AND METHODS THEREFOR
    Publication number: 20140241120
    Abstract: Embodiments describe methods, devices and systems for marine seismic surveying which prevent or inhibit marine growth thereon. Towed seismic array elements which can become fouled given their presence in the water for extended time periods are coated with a hydrophobic coating, e.g., a superhydrophobic nanocoating applied manually via an aerosol can or brush. Application of the hydrophobic coating can be performed on board the towing vessel, or even potentially in the water.
    Type: Application
    Filed: October 24, 2013
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: Nigel BLACKHALL, Raphael MACQUIN
  • METHOD AND SYSTEM FOR PNEUMATIC CONTROL FOR VIBRATOR SOURCE ELEMENT
    Publication number: 20140238773
    Abstract: Method, source array and source element that generate seismic waves. The source element includes an enclosure having an opening covered by a piston; a local supply accumulator fluidly communicating with an interior of the enclosure, a pressure of the fluid inside the local supply accumulator being larger than a pressure of the fluid inside the enclosure; a local supply valve located between the local supply accumulator and the enclosure and configured to control a flow of the fluid from the local supply accumulator to the interior of the enclosure; and a controller configured to control the local supply valve such that the pressure inside the enclosure does not fall below a first preset value based upon an ambient pressure of the enclosure while seismic waves are generated.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: John SALLAS, Thierry AMEIL, Robert DOWLE, Dominique THOMAS
  • SYSTEMS AND METHODS FOR IMPROVING THE EFFICIENCY OF HYDROGENERATORS
    Publication number: 20140241121
    Abstract: Systems and methods are provided for generating power by a hydrogenerator which can be attached to a portion of a towed marine streamer. A hydrogenerator includes: a stator configured to impart a spin to water which flows through the stator, wherein the stator is inline with and fluidly coupled to a propeller; the propeller configured to receive water which has passed through the stator, wherein the propeller is connected to a generator; the propeller configured to spin; and the generator configured to output power for use by components attached to the towed marine streamer.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventor: Patrick JONKE
  • SYSTEM AND METHOD FOR LOCATING AND POSITIONING SEISMIC SOURCE
    Publication number: 20140241123
    Abstract: A source array generates seismic waves in water during a marine seismic survey. The source array includes a first sub-array including plural source elements; plural acoustic transceivers distributed along the first sub-array; a positioning system; a primary position control device configured to control a position of the first sub-array; and a secondary position control system configured to adjust a depth of the first sub-array.
    Type: Application
    Filed: January 24, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: John SALLAS, Benoit TEYSSANDIER, Robert DOWLE
  • COMBINED WIDE AND NARROW AZIMUTH SEISMIC DATA ACQUISITION SYSTEM AND METHOD
    Publication number: 20140241118
    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: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: Mickael LANDAIS, Chu-Ong TING, Thomas MENSCH, Damien GRENIE
  • VIBRATOR SOURCE ARRAY LOAD-BALANCING METHOD AND SYSTEM
    Publication number: 20140241116
    Abstract: Method and controller for finding a best distribution of source elements that form a vibratory source array. The method includes inputting plural constraints for the source elements; generating plural distributions of the source elements that fulfill the plural constraints; calculating for each distribution a first attribute characterizing the source array; and selecting the best distribution from the plural distributions based on a value of the first attribute.
    Type: Application
    Filed: January 28, 2014
    Publication date: August 28, 2014
    Applicant: CGG SERVICES SA
    Inventors: John SALLAS, Benoit TEYSSANDIER
  • SYSTEM FOR REAL-TIME DEFLECTOR MONITORING AND RELATED METHODS
    Publication number: 20140202263
    Abstract: A real time deflector monitoring system related to a deflector used in a seismic survey system is provided. The system includes a bridle block configured to connect the deflector to a first rope. The system further includes sensors embedded in the bridle block and configured to measure strength and direction of a tension in at least one of (A) the first rope and/or (B) one of rig ropes connecting the deflector to the bridle block. The system also includes a motion detector configured to acquire information related to deflector's motion.
    Type: Application
    Filed: December 2, 2013
    Publication date: July 24, 2014
    Applicant: CGG SERVICES SA
    Inventors: Hervé RICHER DE FORGES, Frederic SIMONNOT
  • APPARATUS AND METHOD FOR DETERMINATION OF FAR-FIELD SIGNATURE FOR MARINE SEISMIC VIBRATOR SOURCE
    Publication number: 20140204701
    Abstract: Computing device, system and method for calculating a far-field signature of a vibratory seismic source. The method includes determining an absolute acceleration of a piston of the vibratory seismic source while the vibratory seismic source generates a seismic wave; calculating, based on the absolute acceleration of the piston, a far-field waveform of the vibratory seismic source at a given point (O) away from the vibratory seismic source; and cross-correlating the far-field waveform with a driving pilot signal of the vibratory seismic source to determine the far-field signature of the vibratory seismic source.
    Type: Application
    Filed: November 1, 2013
    Publication date: July 24, 2014
    Applicant: CGG SERVICES SA
    Inventor: Benoit TEYSSANDIER
  • FAST FASTENING ANTIFOULING TAPE OR SUBSTRATE USEABLE IN MARINE SEISMIC SURVEYS
    Publication number: 20140204706
    Abstract: A streamer usable underwater for a marine seismic survey has a portion adjacent to a protuberance covered by an adhesive antifouling tape or substrate. The tape, which may be made of copper or copper alloy is configured to be fast fastened, may be applied when the streamer is deployed and may be covered by a protective jacket during recovery.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 24, 2014
    Applicant: CGG SERVICES SA
    Inventors: Raphaël MACQUIN, Hélène TONCHIA
  • METHOD AND DEVICE FOR CONTROLLING SOURCE ARRAY GEOMETRY
    Publication number: 20140204707
    Abstract: Methods related to controlling a source array while performing a seismic survey to achieve an intended source signature. A current three dimensional arrangement of the individual seismic sources is compared with a target 3D arrangement. In view of the comparison, position of at least one of the individual seismic sources is adjusted so that the adjusted 3D arrangement of the individual seismic sources to substantially match the target 3D arrangement.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: CGG SERVICES SA
    Inventor: Helene TONCHIA
  • FOLDABLE WING BIRD FOR MARINE SEISMIC SURVEY SYSTEMS
    Publication number: 20140204705
    Abstract: A bird for a streamer or source of marine seismic survey system has a body configured to be attached to the streamer or source, and a wing connected to the body and having an active surface used to control depth and/or lateral position of the body. The wing is configured to be changed between an operational state in which the active surface is extended away from the body, and a folded state in which the active surface is folded close to the body.
    Type: Application
    Filed: November 26, 2013
    Publication date: July 24, 2014
    Applicant: CGG SERVICES SA
    Inventor: Hélène TONCHIA
  • TOWED STREAMER ACQUISITION WITH VARIABLE SPATIAL RESOLUTION
    Publication number: 20140198611
    Abstract: Methods and systems for performing a single pass multi-density seismic acquisition are described. A single pass multi-density seismic acquisition includes a plurality of different length streamers towed by one or more streamer vessels. The different length streamers are configured to provide different streamer (receiver) density zones from a highest density to lowest density from the least offset to the greatest offset of the streamers. The different density zones provide for optimized data associated with multiples rejection, imaging and model building/full waveform inversion.
    Type: Application
    Filed: December 2, 2013
    Publication date: July 17, 2014
    Applicant: CGG SERVICES SA
    Inventor: Risto SILIQI
  • MULTI-LEVEL SEISMIC SOURCE AND METHOD
    Publication number: 20140198608
    Abstract: A depth-varying marine acoustic source array is configured for generating an acoustic wave in a body of water. The depth-varying marine acoustic source array includes a float; plural source points connected to the float through corresponding cables; and a housing extending from a first source point to a last source point, the housing including plural segments. The at least one segment is configured to withstand bending.
    Type: Application
    Filed: December 11, 2013
    Publication date: July 17, 2014
    Applicant: CGG SERVICES SA
    Inventor: Junya KONNO
  • HIGH-FIDELITY ADAPTIVE CURVELET DOMAIN PRIMARY-MULTIPLE SEPARATION PROCESSING OF SEISMIC DATA
    Publication number: 20140200819
    Abstract: Methods and systems for separating multiple events from primary events in noisy seismic data are described. Multiples are predicted and then the predictions are improved by least-square matching filtering in the space and time domain. An adaptive curvelet domain separation (ACDS) is then performed and the ACDS equation is solved with an iterative soft-thresholding technique. Further processing can be added to compensate for prediction inaccuracy or variable/excessive seismic data noise by dividing the seismic data into predetermined bands and processing each band independently.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: CGG SERVICES SA
    Inventor: Xiang WU
  • TAILBUOY STABILIZATION DEVICE AND METHOD
    Publication number: 20140196653
    Abstract: Devices and methods for stabilizing a tailbuoy attached to a streamer towed during a marine survey are provided. The tailbuoy includes a floating body configured to be connected to the streamer, and a keel attached to the floating body. The keel is configured to stabilize a motion of the tailbuoy along a towing direction while in a working state, and to be switched between the working state in which the keel is partially submerged and a retracted state in which the keel is removed from water.
    Type: Application
    Filed: November 4, 2013
    Publication date: July 17, 2014
    Applicant: CGG SERVICES SA
    Inventor: Marc LESCHEVIN
  • SEISMIC DATA PROCESSING INCLUDING DATA-CONSTRAINED SURFACE-CONSISTENT CORRECTION
    Publication number: 20140200817
    Abstract: Methods and systems for constraining surface consistent amplitude corrections are described. An amplitude map generated from pre-stack or post-stack seismic data can constrain, through the bin term, the surface consistent inversion. The methods and systems provide a solution to correct for wavelength and regional anomalies associated with heterogeneous near surface or buried velocity variations above the target horizon. The methods and systems can be used for 2D, 3D, 4D surveys or for a merge of different surveys.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 17, 2014
    Applicant: CGG SERVICES SA
    Inventors: Katia GARCERAN, David LE MEUR, André LÉVÊQUE
  • SYSTEMS AND METHODS FOR SEISMIC DATA PROCESSING USING KINEMATIC ANALYSIS OF SOURCE-RECEIVE MIGRATION ADCIGS
    Publication number: 20140200813
    Abstract: Systems and methods are provided for determining a starting position and direction of a ray for use in generating a velocity model based at least in part on a kinematic analysis of Angle Domain Common Image Gathers (ADCIGs) obtained by a Wave Equation Migration (WEM) process. A method includes: determining a migrated spatial dip from a stack; determining a slope of a residual move-out (RMO); remapping a migrated value into a first value; repositioning the starting position of the ray based at least in part on the migrated spatial dip from the stack, the slope of the RMO and the first value; and computing the starting direction of the ray.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: CGG SERVICES SA
    Inventors: Jean-Philippe MONTEL, Gilles LAMBARE