公开(公告)号：US20180252836A1

公开(公告)日：2018-09-06

申请号：US15966252

申请日：2018-04-30

Applicant: CGG SERVICES SAS

Inventor： Philip MILES ,  Jason BERRINGER

IPC: G01V3/165 ,  G01V3/26 ,  G01V3/08

CPC classification number: G01V3/165 ,  G01V3/083 ,  G01V3/088 ,  G01V3/12 ,  G01V3/265 ,  G01V3/30

Abstract: An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a survey EM transmitter for generating survey EM signals within a first frequency range; a tracking EM transmitter for generating tracking signals within a second frequency range; and a receiver section including a receiver that measures both the survey EM signals and the tracking signals.

公开(公告)号：US20170315255A1

公开(公告)日：2017-11-02

申请号：US15647735

申请日：2017-07-12

Applicant: CGG SERVICES SAS

Inventor： Philip MILES ,  Jason BERRINGER

IPC: G01V3/165

CPC classification number: G01V3/165

Abstract: An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a frame; a first EM receiver attached to the frame and configured to measure the EM signals within a first frequency range; and a second EM receiver attached to the frame and configured to measure the EM signals within a second frequency range. Corresponding axes of the first and second EM receivers are substantially parallel to each other.

公开(公告)号：US20190285766A1

公开(公告)日：2019-09-19

申请号：US16419322

申请日：2019-05-22

Applicant: CGG SERVICES SAS

Inventor： Philip MILES ,  Jason BERRINGER

IPC: G01V3/165 ,  G01V3/26 ,  G01V3/08 ,  G01V3/12

Abstract: An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a survey EM transmitter for generating survey EM signals within a first frequency range; a calibration EM transmitter for generating a calibration signal; a receiver section, including a receiver housing and a receiver, that measures both the survey EM signals and the calibration signal; and a calibration device connected to the calibration EM transmitter and to the receiver, the calibration device configured to control a frequency and waveform of the calibration signal. The calibration device is further configured to calculate a response function of the receiver, based on the calibration signal.

公开(公告)号：US20190187319A1

公开(公告)日：2019-06-20

申请号：US16273256

申请日：2019-02-12

Applicant: CGG SERVICES SAS

Inventor： Adam SMIAROWSKI ,  Jason BERRINGER ,  Philip MILES

IPC: G01V3/16 ,  G01V3/17

CPC classification number: G01V3/16 ,  G01V3/17

Abstract: An electromagnetic geophysical exploration system includes a first transmitter-receiver pair that includes a first transmitter configured to transmit a first waveform in a first spectrum and a first receiver configured to sense signals in the first spectrum; and a second transmitter-receiver pair that includes a second transmitter configured to transmit a second waveform in a second spectrum, the second spectrum having a frequency higher than a frequency of the first spectrum, and a second receiver configured to sense signals in the second spectrum; and a control portion. The control portion controls the first transmitter to transmit the first waveform with a first given strength or shape in the first spectrum, and controls the second transmitter to transmit the second waveform with a second given strength or shape in the second spectrum, after a specified time delay.

公开(公告)号：US20180217288A1

公开(公告)日：2018-08-02

申请号：US15933879

申请日：2018-03-23

Applicant: CGG SERVICES SAS

Inventor： Philip MILES ,  Jason BERRINGER

IPC: G01V3/28

CPC classification number: G01V3/28

Abstract: A method and system for active cancellation of transient signals and dynamic loop configuration for geophysical exploration is disclosed. The method includes controlling a transmitter to transmit a waveform in a frequency spectrum during an on-time. The transmitter includes a plurality of turns of wire. The method also includes controlling a plurality of switches to direct an electrical signal through the plurality of turns of wire. The plurality of switches electrically coupled to the plurality of turns of wire. The method further includes controlling a switch of the plurality of switches to direct a first portion of a transient current in an opposite direction from a direction of a second portion of the transient current during an off-time.