公开(公告)号：US11525933B2

公开(公告)日：2022-12-13

申请号：US16569755

申请日：2019-09-13

Applicant: SERCEL

Inventor： Johann Dabouineau ,  Bertrand Tijou ,  Christian Gregoire ,  Cyrille Bernard ,  Pagnarit Seng

IPC: G01S1/22 ,  G01V1/22 ,  G01V1/16 ,  G01V1/18

Abstract: A seismic node for collecting seismic data, the seismic node including a base configured to define a chamber having an open face; a main electronic board having a processor, the main electronic board being placed inside the chamber; a battery pack configured to supply electrical power to the main electronic board and placed inside the chamber; and a digital cover that attaches to the open side of the base to seal the chamber, and a sensor device located inside the chamber and attached to a wall of the base to form a digital field unit, or an analog cover that attaches to the open side of the base to seal the chamber, and an analog sensor electrically attached to the analog cover to form an analog field unit.

公开(公告)号：US20220252747A1

公开(公告)日：2022-08-11

申请号：US17551770

申请日：2021-12-15

Applicant: SERCEL, INC.

Inventor： Stephen CHELMINSKI

IPC: G01V1/137 ,  G01V1/143

Abstract: A seismic source for generating seismic waves under water includes an operating head having an operating chamber, a cushion chamber, and discharge ports, a firing chamber attached to the operating head, the firing chamber configured to hold compressed air to be discharged through the discharge ports, and a shuttle assembly having a shaft located within the operating head and configured to prevent the compressed air in the firing chamber to enter the discharge ports when in a close state, and to allow the compressed air in the firing chamber to be discharged through the discharge ports when in an open state. The shaft of the shuttle assembly which extends in both the operating chamber and the cushion chamber, has a channel having a varying depth.

公开(公告)号：US11385367B2

公开(公告)日：2022-07-12

申请号：US16410418

申请日：2019-05-13

Applicant: SERCEL, INC.

Inventor： Mike Maples ,  John S. Hepp

IPC: G01V1/18 ,  G01V1/38

Abstract: A section of a streamer for acoustic marine data collection, the section having a carrier for accommodating seismic sensors, wherein the carrier includes, a single body, a first particle motion sensor located on the single body, and a second particle motion sensor being located on the single body, with a 90° angular offset, about a longitudinal axis of the carrier, relative to the first particle motion sensor; and a tilt sensor coupled to the carrier and having a known direction relative to the first and second particle motion sensors so that the tilt sensor determines an angle of tilt of the carrier about a vertical. The first and second particle motion sensors measure a motion related parameter and not a pressure.

公开(公告)号：US20220113438A1

公开(公告)日：2022-04-14

申请号：US17067173

申请日：2020-10-09

Applicant: SERCEL

Inventor： Viktor SMIRNOV ,  Julien RIBETTE

IPC: G01V1/20 ,  G01V1/38

Abstract: A method for calculating a velocity vp(f, Topt) of a spatially aliased wave that propagates along a cable includes tensioning the cable, wherein plural sensors are distributed along the cable; measuring with the plural sensors a parameter that is associated with vibrations that propagate along the cable; calculating a phase velocity vp(f) of the spatially aliased wave that propagates along the cable, as a function of a time frequency fin a spatial-temporal frequency domain FK; calculating a model-based velocity vp(f, T) of the spatially aliased wave as a function of the time frequency f and a tension T in the cable; and calculating the velocity vp(f, Topt) of the spatially aliased wave using a model-guided regression, which is based on the phase velocity vp(f) and the model-based velocity vp(f, T). The velocity vp(f, Topt) is a function of the temporal frequency f.

公开(公告)号：US20220011115A1

公开(公告)日：2022-01-13

申请号：US17294597

申请日：2019-11-19

Applicant: SERCEL

Inventor： Thomas MENSCH ,  Timothée MOULINIER

IPC: G01C21/20 ,  G01V1/38 ,  B63B79/15

Abstract: A method is provided for planning a trajectory to be performed by a marine vessel between a first point and a second point, the trajectory having a first path and a second path. The method includes a first step (202) of computing a theoretical trajectory in a ground reference frame from the first point to the second point assuming an absence of water current, the theoretical trajectory comprising a first theoretical path and a second theoretical path. A second step (204) includes computing a second path in the ground reference frame, and a third step includes (206) computing a corrected first path in a water reference. A fourth step includes (208) computing the trajectory in the ground reference frame from the first point to the second point based on the corrected first path and the second path.

公开(公告)号：US20210263477A1

公开(公告)日：2021-08-26

申请号：US17255373

申请日：2019-06-19

Applicant: SERCEL

Inventor： Christophe L'HER

IPC: G04G3/02

Abstract: The method for estimating the drift over time of a physical operating parameter of a clock for dating seismic data samples associated with a seismic data collection node involves measuring (10) at least one quantity associated with the clock, at predetermined instants or during predetermined time periods, and applying (12), to this quantity, a predetermined non-linear law of variation of this quantity that depends on the values collected during the measurement step (10), so as to obtain an estimation of the drift over time of the physical operating parameter.

公开(公告)号：US20210239867A1

公开(公告)日：2021-08-05

申请号：US17238393

申请日：2021-04-23

Applicant: SERCEL

Inventor： Cyrille BERNARD ,  Mathieu SANCHE

IPC: G01V1/16 ,  G01V1/22 ,  G06F1/16 ,  G06F13/10 ,  G06F13/38 ,  H01R13/518 ,  H01R33/06 ,  H01R33/90 ,  H02J7/00

Abstract: A docking station for receiving different types of seismic nodes, the docking station including a frame; a control module attached to the frame plural docking modules attached to the frame, wherein each docking module includes plural docking bays; a monitor attached to the frame and configured to display information about the plural docking modules; and a network connection device attached to the frame and configured to provide data transfer capabilities for each docking bay of the plural docking bays. The plural docking bays are configured to accept interchangeable ports that are compatible with the different types of seismic nodes.

公开(公告)号：US20200072998A1

公开(公告)日：2020-03-05

申请号：US16120714

申请日：2018-09-04

Applicant: SERCEL

Inventor： Thomas MENSCH ,  Jean-Pierre DEGEZ ,  Thierry FAVIER ,  Thomas ELBOTH

IPC: G01V1/36 ,  G01V1/38

Abstract: System and method for shooting plural seismic sources Si in a marine acquisition system with a deblending-designed dithering sequence DSnew. The method includes generating the deblending-designed dithering sequence DSnew to include random dithering times Di, a range of the dithering times Di being larger than a preset, non-zero, minimum value pmv, selecting a shooting sequence SS for the plural seismic sources Si; and shooting the plural seismic sources Si with the deblending-designed dithering sequence DSnew, based on the shooting sequence SS. All odd or all even members of the shooting sequence SS are shot with zero dithering times.

公开(公告)号：US20200012004A1

公开(公告)日：2020-01-09

申请号：US16028703

申请日：2018-07-06

Applicant: SERCEL

Inventor： Thomas ELBOTH ,  Vetle VINJE ,  Honglei SHEN

IPC: G01V1/38

Abstract: A seismic data acquisition system includes a streamer spread including plural streamers that extend along an inline direction X; a set of front sources that are positioned ahead of the streamer spread along the inline direction X; and a set of top sources that are positioned on top of the streamer spread, along a horizontal direction that is perpendicular to the inline direction X. A characteristic of the set of front sources is different from a characteristic of the set of top sources, and bins corresponding to collected seismic data from each source set are interleaved.

公开(公告)号：US10247839B2

公开(公告)日：2019-04-02

申请号：US14844147

申请日：2015-09-03

Applicant: SERCEL

Inventor： Daniel Boucard

IPC: G01V1/22 ,  G01V1/24 ,  G01V1/00

Abstract: Described herein is a land seismic data acquisition system comprising a central processing unit; a cabled network connected to the central processing unit comprising a plurality of acquisition lines each comprising: electronic units assembled in series along a telemetry cable and each associated with at least one seismic sensor, the units processing signals transmitted by the sensor(s); intermediate modules assembled in series along the telemetry cable and each associated with at least one of the electronic units, each intermediate module providing power supply and synchronization of the electronic unit(s) wherewith it is associated; wherein each electronic unit is associated with at least two intermediate modules including at least one upstream and at least one downstream from the electronic unit along the telemetry cable, and comprises synchronization means independent from the cabled network, bidirectional and autonomous power supply means, bidirectional storage means of the signals processed by the electronic units.