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公开(公告)号：US09671509B2
公开(公告)日：2017-06-06
申请号：US14082503
申请日：2013-11-18
申请人： CGG SERVICES SA
发明人： John Sallas , Olivier Winter
CPC分类号： G01V1/005
摘要： Controller and method for generating a frequency sweep for a seismic survey that uses a seismic source. The method includes receiving specification data about the seismic source; receiving environmental data about an infrastructure affected by the seismic survey; receiving guideline data about the infrastructure; setting a target energy spectrum density to be emitted by the seismic source during the seismic survey; and calculating, in a processor, the frequency sweep based on the specification data, environmental data, guideline data and the target energy spectrum density.
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公开(公告)号：US09804283B2
公开(公告)日：2017-10-31
申请号：US14897002
申请日：2014-06-26
申请人： CGG SERVICES SA
CPC分类号： G01V1/375 , G01V1/005 , G01V2210/50
摘要： Methods and systems for separating seismic data acquired using a plurality of substantially simultaneously fired sources are described. The sources use sweep sequences having low cross correlation levels to generate seismic waves, and their source signatures are determined. Using the source signatures, the wave fields associated with each of the sources are extracted from the seismic data by, for example, performing a time domain deconvolution.
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公开(公告)号：US09557429B2
公开(公告)日：2017-01-31
申请号：US15051942
申请日：2016-02-24
申请人： CGG SERVICES SA
发明人： Kaelig Castor , Olivier Winter , Thomas Bianchi
CPC分类号： G01V1/04
摘要： A system and method for reducing noise in a seismic vibratory source is disclosed. The method includes generating an initial pilot signal for the seismic vibratory source, receiving a source signature based on the initial pilot signal, estimating a noise component of the source signature based on the source signature and the initial pilot signal, generating an anti-noise correction for the initial pilot signal based on the noise component of the source signature, and computing a modified pilot signal based on the initial pilot signal and the anti-noise correction.
摘要翻译： 公开了一种降低地震振动源噪声的系统和方法。 该方法包括产生用于地震振动源的初始导频信号，基于初始导频信号接收源签名，基于源签名和初始导频信号估计源签名的噪声分量，产生抗噪声校正 基于源签名的噪声分量对初始导频信号进行基于初始导频信号和抗噪声校正的修正导频信号的计算。
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公开(公告)号：US10012746B2
公开(公告)日：2018-07-03
申请号：US14187921
申请日：2014-02-24
申请人： CGG SERVICES SA
发明人： Olivier Winter
CPC分类号： G01V1/364 , G01V1/005 , G01V1/368 , G01V1/37 , G01V2210/1214 , G01V2210/32 , G01V2210/34
摘要： A method for attenuating noise in seismic data signals is described wherein seismic signals are transmitted using a pseudo-random frequency sweep signal. Noise is then attenuated from the resulting, acquired seismic data on pre-phase subtraction basis, e.g., before correlating or de-convolving the acquired seismic data. In this way, repetitions associated with, for example, diversity stacking techniques can be avoided.
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公开(公告)号：US09791578B2
公开(公告)日：2017-10-17
申请号：US14786132
申请日：2014-04-30
申请人： CGG Services, SA
发明人： Thomas Bianchi , Julien Meunier , Olivier Winter
CPC分类号： G01V1/005 , G01V1/09 , G01V2210/127
摘要： Methods for seismic exploration of a subsurface formation increase productivity by simultaneously actuating closely located vibratory sources. Individual vibrations generated by different sources actuated simultaneously are encoded to enable separation of seismic data corresponding to each of the individual vibrations.
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公开(公告)号：US20150138917A1
公开(公告)日：2015-05-21
申请号：US14081596
申请日：2013-11-15
申请人： CGG Services SA
发明人： Jason Jurok , Tom Preusser , Olivier Winter , Peter Maxwell
IPC分类号： G01V1/104
摘要： A method for controlling impulsive sources during a geophysical survey includes receiving a set of predetermined shooting times for an impulsive source, receiving a detonation authorization for the impulsive source, and delaying a triggering of the impulsive source until a next available shooting time of the plurality of predetermined shooting times. A corresponding apparatus and system are also disclosed herein.
摘要翻译： 一种用于在地球物理测量期间控制脉冲源的方法包括：接收脉冲源的一组预定拍摄时间，接收针对脉冲源的爆震授权，以及延迟脉冲源的触发，直到多个 预定拍摄时间。 本文还公开了相应的装置和系统。
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