公开(公告)号：US10562598B1

公开(公告)日：2020-02-18

申请号：US16205796

申请日：2018-11-30

Applicant: SERCEL

Inventor： Thierry Roger ,  Philippe Nauraye ,  Jean-Jacques Vignaux ,  Francois Barbin

IPC: B63B22/12 ,  B63B22/04 ,  B63B22/20 ,  G01V1/38

Abstract: A retriever system for retrieving a marine equipment. The retriever system comprises a hollow body having a first opening, a cap adapted to close the first opening of the hollow body and adapted to be removed. A buoyancy assembly housed in the hollow body and adapted to exit the hollow body when the cap is removed. A linkage system maintains the buoyancy assembly linked to the hollow body of the retriever system. The buoyancy assembly comprises first inflatable element and a second inflatable element, and an inflating system configured to, when activated, inflate the first inflatable element, so as to enable exiting of at least the second inflatable element of the buoyancy assembly out of the hollow body. Said inflating system is configured to start or to continue inflating the second inflatable element when said second inflatable element is out of the hollow body.

公开(公告)号：US10473805B2

公开(公告)日：2019-11-12

申请号：US15177429

申请日：2016-06-09

Applicant: SERCEL

Inventor： Frédéric Sautron ,  Jacques Samaria ,  Fabien Barnier

IPC: G01V1/06 ,  G01V1/137

Abstract: Method, source and shuttle configured to generate acoustic waves under water. The seismic source includes a housing; a movable shuttle located inside the housing and configured to move between a closed position and an open position along a longitudinal axis X of the housing; a compensator block located inside the housing and configured to move along the longitudinal axis X; a first static seal system configured to seal a first interface between the housing and the movable shuttle in the closed position; and a second static seal system configured to seal a second interface between the movable shuttle and the compensator block in the closed position.

公开(公告)号：US20190265372A1

公开(公告)日：2019-08-29

申请号：US16410418

申请日：2019-05-13

Applicant: SERCEL, INC.

Inventor： Mike MAPLES ,  John S. HEPP

IPC: G01V1/18

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：US20190250292A1

公开(公告)日：2019-08-15

申请号：US16320353

申请日：2017-07-25

Applicant: SERCEL

Inventor： Pascal VIBERT-CHARBONNEL ,  Khac Phuc Hung THAI

IPC: G01V1/28 ,  G01V1/00 ,  G06F17/18

CPC classification number: G01V1/288 ,  G01V1/003 ,  G01V1/008 ,  G01V1/24 ,  G06F17/18

Abstract: The invention provides a method of detecting a seismic event, which comprises acquiring (110) a digital signal x characteristic of a signal measured by at least one seismic sensor, and calculating (130) a time-frequency distribution for at least one section of a given duration of said signal, in a given frequency band. For each frequency of said frequency band, the calculated time-frequency distribution is normalized. The method also comprises calculating (150) the moving average of the normalized time-frequency distribution ZD, in said frequency band and in a time window, given reference L, centered on the time n; and detecting (160) a seismic event when the average exceeds a predefined threshold value. The invention also provides a corresponding detection system.

公开(公告)号：US20180364378A1

公开(公告)日：2018-12-20

申请号：US15626513

申请日：2017-06-19

Applicant: SERCEL

Inventor： Frédéric NICOLAS ,  Loïc DE RESSÉGUIER

IPC: G01V1/20 ,  G01V1/38

CPC classification number: G01V1/202 ,  G01V1/3843

Abstract: Method and flush module for connecting streamer sections to an external device. The flush module includes a housing; a first end connector attached to the housing and configured to connect to a first element of the streamer spread; a second end connector attached to the housing and configured to connect to a second element of the streamer spread; and an external connector attached to the housing and configured to connect to a third element of the streamer spread. The external connector is configured to pivot between (a) a close position during which the external connector is entirely located within the housing, and (b) an open position during which a distal end of the external connector is located outside the housing.

公开(公告)号：US10101482B2

公开(公告)日：2018-10-16

申请号：US15065023

申请日：2016-03-09

Applicant: SERCEL

Inventor： Thierry Roger ,  Gaetan Mellier ,  Christophe L'Her

IPC: G01V1/38

Abstract: A method and apparatus are provided for steering a first acoustic linear antenna belonging to a plurality of acoustic linear antennas towed by a vessel. A plurality of navigation control devices are arranged along the plurality of linear antennas in order to act at least laterally on the position of the linear antennas. At least one of the navigation control devices arranged along the first acoustic linear antenna performs steps of: obtaining a local measurement of a feather angle or of a parameter linked to the feather angle, the local measurement being associated with the at least one of the navigation control devices arranged along the first acoustic linear antenna; computing a lateral force, as a function of the obtained local measurement; and applying the computed lateral force.

公开(公告)号：US10007014B2

公开(公告)日：2018-06-26

申请号：US14578369

申请日：2014-12-20

Applicant: SERCEL

Inventor： Thierry Adragna

IPC: H04L29/08 ,  G01V1/22

CPC classification number: G01V1/22 ,  H04L67/02

Abstract: It is proposed a method for downloading data to a central unit in a seismic data acquisition system including a network, connected to the central unit and having a plurality of modules. Each module is adapted to generate and/or receive data and to store them. The method includes the following steps, for a given module: when the given module is connected, via a wired or wireless link, to the central unit, it sends to the central unit a historic, chronological or not, representative of data stored in the given module; the central unit cross-checks the historic with missing data of at least one pending experience, and upon match the central unit obtains at least some of the missing data from the given module.

公开(公告)号：US09909640B2

公开(公告)日：2018-03-06

申请号：US14509137

申请日：2014-10-08

Applicant: Sercel, Inc.

Inventor： Matthew Cerniway ,  Michael Maples ,  Gaetan Mellier

IPC: G01V1/20 ,  B63B21/56 ,  F16F15/02

CPC classification number: F16F15/022 ,  B63B21/56 ,  G01V1/201 ,  G01V2001/205

Abstract: Method and apparatus for mitigating vibrations in a device towed in water. The apparatus includes one or more tuned elastic sections having a complex spring rate and adapted to attenuate vibrations in a specified frequency range; and a head end coupler adapted to couple the apparatus for vibration mitigation to a component of an electro-mechanical cable or a tow assembly. One of the one or more tuned elastic sections is coupled to the head end coupler with a high impedance material interface.

公开(公告)号：US09726247B2

公开(公告)日：2017-08-08

申请号：US14521608

申请日：2014-10-23

Applicant: Sercel, Inc.

Inventor： Matthew Cerniway ,  Phillip West ,  Michael Maples

IPC: H01B7/24 ,  F16F3/087 ,  F16F15/08 ,  F16F15/02 ,  F16F1/36 ,  G01V1/20 ,  G01V1/38

CPC classification number: F16F3/0873 ,  F16F1/36 ,  F16F15/022 ,  F16F15/08 ,  F16F2226/04 ,  F16F2230/0023 ,  G01V1/201 ,  G01V1/38 ,  G01V2001/205

Abstract: Method and apparatus for suppressing cable dynamics in a device towed in water. The apparatus includes at least one section for suppression of motion, wherein the at least one section includes an axial motion suppression section; and the axial motion suppression section comprising equipment for the attenuation of axial vibrations in an electro-mechanical cable. The equipment is configured to produce a digressive stiffness curve.

公开(公告)号：US20170222877A1

公开(公告)日：2017-08-03

申请号：US15515389

申请日：2015-09-29

Applicant: SERCEL

Inventor： Pierre SAGOT ,  Julien BARON

IPC: H04L12/24 ,  H04L29/12 ,  H04L12/751

CPC classification number: H04L41/0816 ,  H04L45/02 ,  H04L61/2015 ,  H04L61/6068 ,  H04W40/24

Abstract: A method is developed for dynamically configuring a network with numerous subnets, each subnet comprising at least one router node and said network comprising at least one subnet server. For enhancing the efficiency, the determination of a subnet master for configuring a subnet is carried out with two parallel processes: election of a subnet master among the router nodes of said subnet allocation to each router node of said subnet of a subnet identifier. Configuration of the subnet, achieved by the subnet master with its allocated subnet identifier, is refreshed regularly, in particular when detecting a change in the configuration of the network.