公开(公告)号：US20140043937A1

公开(公告)日：2014-02-13

申请号：US13962250

申请日：2013-08-08

申请人： CGG Services SA

发明人： Benoit TEYSSANDIER ,  Robert DOWLE ,  Laurent RUET ,  John SALLAS

IPC分类号： G01V1/00 ,  G01V1/38

CPC分类号： G01V1/005 ,  G01V1/3808

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.

摘要翻译： 用于适应用于在地震勘测期间产生声波的振动声源元件的频率扫描的控制器和方法。 该方法包括驱动地震源元件以产生电流频率扫描; 响应于当前的频率扫描记录具有多个地震传感器的地震数据; 在地震勘测期间选择地震数据的数据子集，其中数据子集的尺寸小于地震数据的10％; 用处理装置计算基于数据子集的属性; 并基于该属性计算新的频率扫描。

公开(公告)号：US20140133272A1

公开(公告)日：2014-05-15

申请号：US14103161

申请日：2013-12-11

申请人： CGG SERVICES SA

发明人： John SALLAS ,  Robert DOWLE ,  Laurent RUET ,  Benoit TEYSSANDIER

IPC分类号： G01V1/38

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震动震源的第一目标谱的步骤; 为第一振动地震源设定第一组约束的步骤; 以及基于所述第一组约束和所述第一目标光谱，为所述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，当第一振动地震源以无监听时间驱动时，可以识别记录有多个接收器的第一地震迹线。

公开(公告)号：US20140016435A1

公开(公告)日：2014-01-16

申请号：US14028933

申请日：2013-09-17

申请人： CGG SERVICES SA

发明人： Laurent RUET

IPC分类号： G01V1/38

CPC分类号： G01V1/005 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3861 ,  Y02A90/36

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.

摘要翻译： 控制机制，计算机软件和在水下驱动振动源阵列的方法。 非相干采集方案同时且不连贯地驱动各个源元件，而相干采集方案同时驱动高频单个源元件，并且同时和相干地驱动高频单个源元件。 因此，为源阵列实现了更为密集的覆盖和增加的能量输入。