公开(公告)号：US09933547B2

公开(公告)日：2018-04-03

申请号：US14438018

申请日：2014-09-22

Applicant: CGG Services SA

Inventor： Raphaël Macquin ,  André Séveno ,  Jean-Baptiste Hubert ,  Frank Mclemore ,  Jérôme Deschamp

IPC: B08B1/04 ,  G01V13/00 ,  B08B1/00 ,  B08B9/023

CPC classification number: G01V13/00 ,  B08B1/008 ,  B08B1/04 ,  B08B9/023

Abstract: A method and cable cleaning device that includes a housing and at least one cleaning element attached to the housing. The cleaning element is configured to clean marine fouling from a cable. The cleaning element is at least partially rolled around the cable and its tautness is adjustable.

公开(公告)号：US09921328B2

公开(公告)日：2018-03-20

申请号：US14889194

申请日：2014-06-13

Applicant: CGG SERVICES SA

Inventor： Benoit Teyssandier ,  Dominique Thomas ,  Robert Dowle ,  John Sallas

IPC: G01V1/38 ,  G01V1/00

CPC classification number: G01V1/3861 ,  G01V1/006 ,  G01V1/3808

Abstract: Method, source array and seismic vibro-acoustic source element for seismic data acquisition. The method includes storing in a controller a library of beam form factor sets associated with a source array and corresponding regions to be surveyed; towing the source array along survey lines over the regions to be surveyed; selecting a beam form factor set from the library to be applied to the source array for each region; and actuating the source array based on the selected set of beam form factors and a position of the source array relative to the regions. Each set of beam form factors maps to a corresponding region of an area to be surveyed.

公开(公告)号：US09891329B2

公开(公告)日：2018-02-13

申请号：US15356844

申请日：2016-11-21

Applicant: CGG SERVICES SAS

Inventor： John Sallas ,  Thierry Ameil ,  Robert Dowle ,  Dominique Thomas

IPC: G01V1/00 ,  G01V1/04 ,  G01V1/155 ,  G01V1/145 ,  G01V1/18 ,  G01V1/135 ,  G01V1/143 ,  G01V1/38

CPC classification number: G01V1/04 ,  G01V1/135 ,  G01V1/143 ,  G01V1/145 ,  G01V1/155 ,  G01V1/188 ,  G01V1/38 ,  G01V2210/1293

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.

公开(公告)号：US09874652B2

公开(公告)日：2018-01-23

申请号：US15116299

申请日：2015-11-24

Applicant: CGG SERVICES SA

Inventor： Reza Saberi

IPC: G01V1/50 ,  G01V1/48

CPC classification number: G01V1/50 ,  G01V1/48 ,  G01V2210/614 ,  G01V2210/626

Abstract: Modeling an elastic stiffness tensor in a transverse isotropic subsurface medium acquires well log data for at least one well passing through the transverse isotropic subsurface medium. The transverse isotropic subsurface medium is divided into an effective anisotropic layer and an isotropic layer. The effective anisotropic layer elastic parameters are modeled, and the isotropic layer elastic parameters are modeled using the effective anisotropic layer elastic parameters and the acquired well log data. The modeled effective anisotropic layer elastic parameters and the modeled isotropic layer elastic parameters are used to upscale the effective anisotropic layer and the isotropic layer into the transverse isotropic subsurface medium comprising a single layer and to determine the five members of the elastic stiffness tensor for the transverse isotropic subsurface medium.

公开(公告)号：US09857489B2

公开(公告)日：2018-01-02

申请号：US14760731

申请日：2014-01-15

Applicant: CGG SERVICES SA

Inventor： Gilles Lambare ,  Thibaut Allemand

IPC: G01V1/28 ,  G01V1/30

CPC classification number: G01V1/303 ,  G01V1/282 ,  G01V2210/51 ,  G01V2210/6222 ,  G01V2210/671 ,  G01V2210/675

Abstract: Disclosed herein is a system and method for building a velocity model for a geographical area of interest (GAI). The system and method comprise determining a ray based tomography velocity image of said GAI using acquired data, determining a high resolution velocity guide (HRVG) image of said GAI, scaling said determined HRVG of said GAI, adding the scaled HRVG to the ray based tomography velocity image to determine an updated ray based tomography velocity image, and determining whether said updated ray based tomography velocity image has experienced convergence by determining whether a cost function of said ray based tomography velocity image does not improve compared to a previously determined cost function value of said ray based tomography velocity image.

公开(公告)号：US20170371071A1

公开(公告)日：2017-12-28

申请号：US15630016

申请日：2017-06-22

Applicant: CGG SERVICES SAS

Inventor： Timothee MOULINIER ,  Raphael MACQUIN ,  Herve RICHER DE FORGES ,  Alexandre PETRIGNY

IPC: G01V13/00 ,  B63G8/00 ,  B63B21/66 ,  G01V1/38 ,  G01V1/20

CPC classification number: G01V13/00 ,  B63B21/66 ,  B63G8/001 ,  B63G2008/007 ,  G01V1/201 ,  G01V1/38 ,  G01V1/3843

Abstract: Method and seismic data acquisition system includes a streamer spread including (i) a streamer having receivers for recording seismic data and (ii) a connecting cable connecting the streamer to a towing vessel; a collar device configured to move along the connecting cable, between the towing vessel and the streamer; and a remotely operated vehicle (ROV) attached to the collar device with an umbilical and configured to carry an interchangeable payload.

公开(公告)号：US20170371053A1

公开(公告)日：2017-12-28

申请号：US15630019

申请日：2017-06-22

Applicant: CGG SERVICES SAS

Inventor： Gordon POOLE ,  Benoit TEYSSANDIER

IPC: G01V1/36 ,  G01V1/38 ,  G01V1/32

CPC classification number: G01V1/36 ,  G01V1/005 ,  G01V1/32 ,  G01V1/375 ,  G01V1/38 ,  G01V2210/26

Abstract: There is a method for correcting seismic wave propagation paths through the earth. The method includes determining a first fixed shooting sequence for a first bandlimited seismic source; determining a second shooting sequence for a second bandlimited seismic source, wherein the second shooting sequence includes second shooting positions that correspond to second energy emissions, and the second energy emissions differ from the first energy emissions in at least one of an emission time, phase and amplitude; receiving raw seismic data recorded with seismic receivers and generated as a result of the first and second energy emissions, wherein the raw seismic data is indicative of seismic wave paths from the first and second bandlimited seismic sources to the seismic receivers; separating the raw seismic data into a first bandlimited set corresponding to the first bandlimited seismic source and a second bandlimited set corresponding to the second bandlimited seismic source; and correcting the seismic wave paths, from the first and second bandlimited seismic sources to the seismic receivers, based on at least one of the first and second bandlimited sets.

公开(公告)号：US09835745B2

公开(公告)日：2017-12-05

申请号：US14762210

申请日：2014-01-22

Applicant: CGG SERVICES SA

Inventor： Karine Desrues

IPC: G01V1/38 ,  G01V1/20 ,  G01V1/18 ,  G01V1/137

CPC classification number: G01V1/201 ,  G01V1/137 ,  G01V1/186 ,  G01V1/3808 ,  G01V1/3817 ,  G01V1/3843 ,  G01V1/3861 ,  G01V2210/1212 ,  G01V2210/127 ,  G01V2210/1293 ,  G01V2210/1423

Abstract: Presented are methods and systems for collecting marine seismic data. The collected seismic data can be low frequency (e.g., less than 10 Hz) or it can be a full seismic bandwidth (1-200 Hz) depending on if the low frequency tuned sources and tuned receivers are combined with conventional sources and receivers. The low frequency sources can be towed or they can be autonomous and positioned in the survey area by tether, drifting or self-propelled. The tuned low frequency receivers are towed at a depth greater than conventional receivers and the sources can be fired independently or simultaneously.

公开(公告)号：US09784870B2

公开(公告)日：2017-10-10

申请号：US14519405

申请日：2014-10-21

Applicant: CGG SERVICES SA

Inventor： Gordon Poole ,  Simon King

IPC: G01V1/38 ,  G01V1/36

CPC classification number: G01V1/364 ,  G01V1/38 ,  G01V2210/56

Abstract: Methods and systems for processing data acquired using a variable-depth streamer, obtain up-going and down-going wavefields at a predetermined datum, and use them to identify multiples included in the up-going wavefield. An image of a geological formation under the seabed is then generated using the data from which the multiples have been removed, and/or the multiples.

公开(公告)号：US09784864B2

公开(公告)日：2017-10-10

申请号：US14026588

申请日：2013-09-13

Applicant: CGG SERVICES SA

Inventor： Damien Grenie ,  Thomas Mensch ,  Risto Siliqi

IPC: G01V1/30 ,  G01V1/38

CPC classification number: G01V1/30 ,  G01V1/3808 ,  G01V1/3817 ,  G01V2210/165

Abstract: Systems and methods for acquiring blended and unblended seismic data during a single seismic survey. The blended and unblended seismic data is generated with a plurality of sources that are fired in a dedicated sequence. The sequence involves firing all the sources at a first time, advancing the sources along a given path, firing only a first source at a second time, later than the first time, advancing the sources, firing again all the sources at a third time, later than the second time, advancing the sources, firing only a second source at a fourth time, later than the third time, and so on until a desired subsurface is fully surveyed.