公开(公告)号：US09891332B2

公开(公告)日：2018-02-13

申请号：US14282480

申请日：2014-05-20

Applicant: Sercel

Inventor： Gilles Ollivrin

IPC: G01V1/30 ,  G01V1/00 ,  G01V1/02

CPC classification number: G01V1/307 ,  G01V1/005 ,  G01V1/02 ,  G01V2200/14 ,  G01V2210/1214

Abstract: A method for determining a quality control quantity corresponding to energy provided by a seismic source and related devices are provided. The method includes determining an envelope of a pilot signal associated with the seismic source; measuring a source signal of the energy provided by the seismic source; normalizing the pilot signal and the source signal using the determined envelope; and determining, in a processor, the quality control quantity using the normalized pilot signal and the normalized source signal. A control mechanism configured to implement the method includes a storage device holding data of a pilot signal associated with the seismic source; and a processor connected to the storage device and configured to carry out the method steps. A computer-readable medium having instructions to carry out steps of the method is also provided.

公开(公告)号：US20170357016A1

公开(公告)日：2017-12-14

申请号：US15177429

申请日：2016-06-09

Applicant: SERCEL

Inventor： Frédéric SAUTRON ,  Jacques SAMARIA ,  Fabien BARNIER

IPC: 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：US09810802B2

公开(公告)日：2017-11-07

申请号：US14681803

申请日：2015-04-08

Applicant: Sercel

Inventor： Didier Renaud

IPC: G01V1/00 ,  G01V1/38

CPC classification number: G01V1/3808

Abstract: A method for managing a target location of at least a first vessel in a seismic survey involving at least one vessel, the first vessel performing a series of shoots according to a predefined set of shot points, called preplot. The method includes, during at least a part of the survey, computing an updated position of the center of the target location for the first vessel, using the trend, as a function of time, of a curve representing a time prediction shift for a shot point, for the first vessel, and depending on at least one parameter related to the capabilities of a vessel involved in the seismic survey.

公开(公告)号：US09810799B2

公开(公告)日：2017-11-07

申请号：US14332025

申请日：2014-07-15

Applicant: SERCEL

Inventor： Eric Broquet ,  Nicolas Goloubenko ,  Jean-Charles Bremaud ,  Jean-Luc Dronet

IPC: G01V1/20 ,  G01V1/00 ,  G01V1/22 ,  G01V1/16

CPC classification number: G01V1/20 ,  G01V1/003 ,  G01V1/168 ,  G01V1/223

Abstract: It is proposed a method for automatically assigning wireless seismic acquisition units to topographic positions, each wireless seismic acquisition unit includes a satellite navigation system receiver. The method has the following steps, carried out by an assigning device: obtaining topographic locations at which the wireless seismic acquisition units are expected to be laid; obtaining measured positions of the wireless seismic acquisition units, corresponding to or derived from position information provided by the satellite navigation system receivers when the wireless seismic acquisition units are installed on the ground, each near one of the topographic locations; and computing associations, each between one of the wireless seismic acquisition units and one of the topographic positions, as a function of a comparison between the measured positions and the topographic locations.

公开(公告)号：US20170315246A1

公开(公告)日：2017-11-02

申请号：US15645167

申请日：2017-07-10

Applicant: SERCEL, INC.

Inventor： Mike MAPLES ,  John S. HEPP

IPC: G01V1/18 ,  G01V1/38

CPC classification number: G01V1/184 ,  G01V1/186 ,  G01V1/189 ,  G01V1/38

Abstract: A section of a streamer for acoustic marine data collection, the section comprising 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, wherein the first and second particle motion sensors measure a motion related parameter and not a pressure.

公开(公告)号：US09784058B2

公开(公告)日：2017-10-10

申请号：US14515055

申请日：2014-10-15

Applicant: Sercel

Inventor： Jean-Eric Negre ,  Ronan Affre De Saint Rome ,  Thierry De Kimpe

IPC: E21B23/01 ,  G01V1/52 ,  G01V11/00 ,  E21B23/14

CPC classification number: E21B23/01 ,  E21B23/14 ,  G01V1/52 ,  G01V11/005

Abstract: Method and down-hole tool for use inside a well, the down-hole tool including a housing; an anchoring arm rotatably attached to the housing and configured to move between an open position and a closed position; a spring block configured to have a central part that moves along a longitudinal axis (X) of the housing which results in the movement of the anchoring arm between the open or closed positions; and an actuating mechanism connected to the central part and configured to move the central part along the longitudinal axis. The spring block is detachably attached to the housing.

公开(公告)号：US09759837B2

公开(公告)日：2017-09-12

申请号：US15028821

申请日：2014-11-11

Applicant: Sercel-GRC Corporation

Inventor： Guillaume Grente ,  Anthony Thornberry ,  David Funkhouser ,  Bryon Western

IPC: G01V3/00 ,  G01V11/00 ,  E21B47/12 ,  E21B43/12 ,  H02H7/08 ,  H02H9/04

CPC classification number: G01V11/002 ,  E21B43/128 ,  E21B47/122 ,  H02H7/08 ,  H02H9/04

Abstract: This invention relates to a data communication system/method for use in a downhole application wherein electrical energy is supplied over a multiple-conductor power cable to a motor assembly of a downhole tool such as an electric submersible pump. A power leg coupling interfaces a surface controller of a downhole instrument to the conductors of the tool's power cable. Uplink communication of telemetry data occurs via current modulation generated by the downhole instrument and interpreted by a surface controller. Downlink communication of downhole instrument data occurs over a different communication scheme supported by the downhole and surface controllers. Downlink communication scheme provides a supply of power to the downhole instrument. Protection of downhole electronics and continuity of communication is ensured in the event of a ground fault on the power cable. Both downlink and uplink communication frequencies are adaptive based on frequencies and voltages present on the power cable.

公开(公告)号：US09651575B2

公开(公告)日：2017-05-16

申请号：US14063290

申请日：2013-10-25

Applicant: Sercel, Inc.

Inventor： John Hepp

IPC: G01P21/00 ,  G01V13/00 ,  G01H3/00

CPC classification number: G01P21/00 ,  G01H3/005 ,  G01V13/00 ,  G01V2210/14

Abstract: There is a testing device for testing a sensor. The testing device includes a rotating mechanism; a first rotating plate connected to the rotating mechanism so that the first rotating plate rotates around an orbital axis (Z1); a second plate rotatably attached to the first rotating plate at a rotating point, the second plate having a rotational axis (Z2) offset from the orbital axis (Z1) by a predetermined distance R; and a gripping mechanism attached to the second plate and configured to receive and fix the sensor relative to the second plate. The second plate follows a circular trajectory with constant attitude around the orbital axis (Z1).

公开(公告)号：US09625592B2

公开(公告)日：2017-04-18

申请号：US14296009

申请日：2014-06-04

Applicant: SERCEL

Inventor： Christophe L'Her ,  Simon Vallez ,  Veronique L'Her Marrec

IPC: G01V1/00

CPC classification number: G01V1/001 ,  G01V2210/1293 ,  G01V2210/1423

Abstract: A method for localizing a marine animal in an underwater environment implemented by a passive acoustic monitoring (PAM) system. The passive acoustic monitoring system includes network of acoustic sensors adapted to carry out measurements of acoustic signals. The method includes: obtaining, from the network of acoustic sensors, measured data of an acoustic signal emitted by a marine animal; defining a space of dimensional representation of the underwater environment discretized in a plurality of predefined cells, for each cell of a predefined set, obtaining an error defined as a value of a cost function for the cell, the cost function giving a deviation between: at least some of the measured data; and corresponding theoretical data obtained by assuming the marine animal is located in the cell, the errors obtained for the predefined set of cells enabling to obtain at least one piece of information about localization of the marine animal.

公开(公告)号：US09599736B2

公开(公告)日：2017-03-21

申请号：US14508608

申请日：2014-10-07

Applicant: SERCEL

Inventor： Thierry Roger ,  Christophe L'Her ,  Jean-Jacques Vignaux ,  Christophe Coutineau ,  Dominique Barbot ,  Stephane Rousseau

IPC: G01V1/38

CPC classification number: G01V1/3826

Abstract: An operation managing system is provided for managing the operation of a navigation control device. The navigation control device is adapted for controlling the depth and/or the lateral position of a towed acoustic linear antenna and including a body to which is attached a set of wings. The operation managing system operates the navigation control device according to a degraded operating mode, by acting on at least one non-released and motorized wing when detecting that at least one wing of the set of wings has been released or must be released.