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1. 发明申请

WO2014076076A2 DEVICE AND METHOD FOR CONTINUOUS DATA ACQUISITION 审中-公开
标题翻译：用于连续数据采集的装置和方法
公开(公告)号：WO2014076076A2
公开(公告)日：2014-05-22
申请号：PCT/EP2013/073614
申请日：2013-11-12
申请人： CGG SERVICES SA
发明人： SALLAS, John , DOWLE, Robert , RUET, Laurent , TEYSSANDIER, Benoit
IPC分类号： G01V1/00
CPC分类号： G01V1/3808 , G01V1/005 , G01V1/38
摘要： Method for generating an excitation signal for a first vibratory seismic source so that the first vibratory seismic source is driven with no listening time. The method includes a step of determining a first target spectrum for the first vibratory seismic source; a step of setting a first group of constraints for the first vibratory seismic source; and a step of generating a first excitation signal for the first vibratory seismic source based on the first group of constraints and the first target spectrum. The first seismic traces recorded with plural receivers can be identified when the first vibratory seismic source is driven with no listening time, based on the first excitation signal.
摘要翻译：用于产生用于第一振动地震源的激励信号的方法，使得第一振动地震源在没有收听时间的情况下被驱动。该方法包括确定第一振动地震源的第一目标频谱的步骤; 设置第一振动地震源的第一组约束的步骤; 以及基于第一组约束和第一目标谱为第一振动地震源产生第一激励信号的步骤。基于第一激励信号，当第一振动地震源在没有收听时间的情况下被驱动时，能够识别用多个接收器记录的第一地震道。

2. 发明申请

WO2014023788A3 ADAPTIVE SWEEP METHOD AND DEVICE FOR SEISMIC EXPLORATION 审中-公开
公开(公告)号：WO2014023788A3
公开(公告)日：2014-02-13
申请号：PCT/EP2013/066591
申请日：2013-08-07
申请人： CGG SERVICES SA
发明人： TEYSSANDIER, Benoit , DOWLE, Robert , RUET, Laurent , SALLAS, John
IPC分类号： G01V1/00 , G01V1/38
摘要： Controller and method for adapting a frequency sweep for a vibro-acoustic source element that is configured to generate acoustic waves during a seismic survey. The method includes driving a seismic source element to generate a current frequency sweep; recording seismic data with plural seismic sensors in response to the current frequency sweep; selecting, during the seismic survey, a data subset of the seismic data, wherein the data subset has a size less than 10% of the seismic data; calculating with a processing device an attribute based on the data subset; and calculating a new frequency sweep based on the attribute.

3. 发明申请

WO2013056903A3 METHOD AND DEVICE FOR DETERMINING A DRIVING SIGNAL FOR VIBROSEIS MARINE SOURCES 审中-公开
公开(公告)号：WO2013056903A3
公开(公告)日：2013-04-25
申请号：PCT/EP2012/067909
申请日：2012-09-13
申请人： CGG SERVICES SA , RUET, Laurent , TEYSSANDIER, Benoit
发明人： RUET, Laurent , TEYSSANDIER, Benoit
IPC分类号： G01V1/00
摘要： Controller and method for determining a driving signal of a vibro-acoustic source element that is configured to generate acoustic waves in water. The method includes estimating at least one physical constraint of the vibro-acoustic source element; modeling a ghost function determined by a surface of the water; setting a target energy spectrum density to be emitted by the vibro-acoustic source element during the driving signal; and determining the driving signal in a controller based on at least one physical constraint, the ghost function, and the target energy spectrum density.

4. 发明申请

WO2013056910A3 ACQUISITION SCHEME FOR VIBROSEIS MARINE SOURCES 审中-公开
公开(公告)号：WO2013056910A3
公开(公告)日：2013-04-25
申请号：PCT/EP2012/067999
申请日：2012-09-13
申请人： CGG SERVICES SA , RUET, Laurent
发明人： RUET, Laurent
IPC分类号： G01V1/38
摘要： Control mechanisms, computer software and methods for driving vibrational source arrays underwater. An incoherent acquisition scheme drives individual source elements simultaneously and incoherently while a coherent acquisition scheme drives high-frequency individual source elements simultaneously and incoherently and low-frequency individual source elements simultaneously and coherently. Thus, denser coverage and an increased energy input is achieved for the source arrays.

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