公开(公告)号：US20170357017A1

公开(公告)日：2017-12-14

申请号：US15536275

申请日：2015-11-24

Applicant: CGG SERVICES SAS

Inventor： Jonathan GRIMSDALE ,  Thomas BIANCHI ,  Jason JUROK ,  Peter MAXWELL

IPC: G01V1/16

CPC classification number: G01V1/166 ,  G01V1/168

Abstract: A system and method for improved coupling of geophysical sensors is disclosed. The method includes determining conditions at an installation location, and selecting a sensor assembly. The sensor assembly includes a threaded device having a shaft with a foot and a head. The threaded device has a cavity that is open at the foot and extends inside the shaft from the foot to the head. The sensor assembly further includes a baseplate configured to couple to the threaded device. The method also includes preparing the installation location for installation of the selected sensor assembly and installing the selected sensor assembly at the installation location.

公开(公告)号：US20170343688A1

公开(公告)日：2017-11-30

申请号：US15322187

申请日：2015-07-01

Applicant: CGG SERVICES SAS

Inventor： John SALLAS ,  Robert DOWLE

IPC: G01V1/137

CPC classification number: G01V1/137 ,  G01V1/145 ,  G01V1/38 ,  Y02A90/36

Abstract: A method and source element for generating seismic waves in water. The source element includes a housing having an opening; an acoustic piston closing the opening; an actuating mechanism located inside the housing and configured to actuate the acoustic piston; and a decoupling mechanism interposed between the acoustic piston and the actuating mechanism. The decoupling mechanism allows the acoustic piston to move substantially independent of the actuating mechanism for a first frequency range.

公开(公告)号：US20170307773A1

公开(公告)日：2017-10-26

申请号：US15521331

申请日：2015-10-26

Applicant: CGG SERVICES SAS

Inventor： Henning HOEBER ,  Adel KHALIL

IPC: G01V1/30

CPC classification number: G01V1/308 ,  G01V2210/61 ,  G01V2210/612

Abstract: Multi-vintage energy mapping selects a first seismic survey data and a second seismic survey dataset from a plurality of seismic survey datasets. The first seismic survey dataset includes a set of first energies associated with a first seismic survey geometry, and the second seismic survey dataset includes a set of second energies associated with a second seismic survey geometry. The first set of energies are mapped from the first seismic survey geometry to the second seismic survey geometry, and the second set of energies are mapped from the second seismic survey geometry to the first seismic survey geometry. An updated first seismic dataset and an updated second seismic dataset are generated such that only energies from the first and second seismic datasets associated with changes in a subsurface are preserved in the updated first and second seismic datasets.

公开(公告)号：US20170299744A1

公开(公告)日：2017-10-19

申请号：US15485282

申请日：2017-04-12

Applicant: CGG SERVICES SAS

Inventor： Corentin CHIFFOT

IPC: G01V1/36 ,  G01V1/30

CPC classification number: G01V1/362 ,  G01V1/30 ,  G01V1/36 ,  G01V2210/53 ,  G01V2210/614 ,  G01V2210/6161

Abstract: A method for estimating surface waves generates incident, back-scattered, virtual back-scattered and super-virtual back-scattered traces. The stacked super-virtual back-scattered traces are an estimate of the surface waves.

公开(公告)号：US09784872B2

公开(公告)日：2017-10-10

申请号：US15378523

申请日：2016-12-14

Applicant: CGG SERVICES SAS

Inventor： Helene Tonchia

IPC: G01V1/38

CPC classification number: G01V1/3808 ,  G01V1/308 ,  G01V1/3817 ,  G01V1/3826 ,  G01V1/3861 ,  G01V2210/1293 ,  G01V2210/612

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.

公开(公告)号：US20170276774A1

公开(公告)日：2017-09-28

申请号：US15516557

申请日：2015-10-06

Applicant: CGG SERVICES SAS

Inventor： Yuan NI ,  Honglei SHEN ,  Thomas ELBOTH

IPC: G01S7/52 ,  G10K11/00 ,  G01S15/89 ,  G01S7/487 ,  G01S15/87

CPC classification number: G01S7/52003 ,  G01S7/4876 ,  G01S15/10 ,  G01S15/878 ,  G01S15/8902 ,  G01V1/201 ,  G01V1/208 ,  G01V1/3808 ,  G10K11/008 ,  H04R1/44

Abstract: Systems and methods for boosting low content of received signals involve a vessel (102) towing port side (205) and starboard side (210) impulsive source arrays. The port side and starboard side impulsive source arrays are selectively actuated for a plurality of sequential shots having different signatures.

公开(公告)号：US20170254914A1

公开(公告)日：2017-09-07

申请号：US15440438

申请日：2017-02-23

Applicant: CGG SERVICES SAS

Inventor： Risto SILIQI ,  Gordon POOLE

IPC: G01V1/38

CPC classification number: G01V1/3817

Abstract: Seismic survey system and method for adjusting positions of plural autonomous receiver nodes (ARNs) of a seismic survey system. The method includes calculating first travel-times of direct arrivals of seismic waves, based on (i) offsets between shooting positions of seismic sources and recording positions of the plural ARNs, and (ii) a speed of the seismic waves in water; estimating second travel-times of the direct arrivals, based on seismic data recorded by the plural ARNs; estimating, in a computing device, positioning errors of one or more of the plural ARNs by applying an inversion algorithm to a misfit between the first and second travel-times; and adjusting the recording positions of the one or more ARNs with the positioning errors.

公开(公告)号：US20170242144A1

公开(公告)日：2017-08-24

申请号：US15508300

申请日：2015-09-11

Applicant: CGG SERVICES SAS

Inventor： Thierry BRIZARD

IPC: G01V1/38 ,  B63G8/00 ,  G05D1/10

CPC classification number: G01V1/3817 ,  B63G8/001 ,  G01V1/3808 ,  G05D1/10

Abstract: An autonomous underwater vehicle (AUV) for guiding other AUVs during a marine seismic survey. The guiding AUV includes a housing; a propulsion system located inside the housing; and an acoustic positioning system attached to an outside the housing. The acoustic positioning system emits at least three chirps from three different locations.

公开(公告)号：US20170235003A1

公开(公告)日：2017-08-17

申请号：US15413990

申请日：2017-01-24

Applicant: CGG SERVICES SAS

Inventor： Thomas ELBOTH ,  Charlotte SANCHIS ,  Julie SVAY ,  Timothee MOULINIER ,  Risto SILIQI

IPC: G01V1/38

CPC classification number: G01V1/3808 ,  G01V1/003 ,  G01V1/3826 ,  G01V2200/14 ,  H03M7/3062 ,  H03M7/3071

Abstract: A survey plan is designed and potentially adjusted so that seismic data acquired during the survey include inline and cross-line seismic data irregularities suitable for compressive sensing reconstruction. At least one of the inline and cross-line irregularities is dynamic and may be due to source, vessel(s) and/or streamer steering.

公开(公告)号：US20170219732A1

公开(公告)日：2017-08-03

申请号：US15409938

申请日：2017-01-19

Applicant: CGG SERVICES SAS

Inventor： Gordon POOLE

IPC: G01V1/36 ,  G01V1/38

CPC classification number: G01V1/36 ,  G01V1/282 ,  G01V1/301 ,  G01V1/364 ,  G01V1/38 ,  G01V2210/532 ,  G01V2210/56 ,  G01V2210/614

Abstract: Computing device, computer instructions and method for correcting an image, of a surveyed surface, due to a free-surface reflection. The method includes calculating a free surface reflection operator for a seismic source displaced in water based on a position of the source, and an air-water interface datum; receiving recorded seismic data d recorded with seismic sensors (r), wherein the recorded seismic data is associated with a pressure and/or a particle motion produced by a seismic wave in earth; correcting the recorded seismic data d based on the free surface reflection operator to obtain transformed seismic data; and generating an image of the surveyed subsurface, based on the transformed seismic data, wherein the image is indicative of various layers of the earth. The free surface reflection operator varies while a source signal is being emitted by the source.