公开(公告)号：US10466376B2

公开(公告)日：2019-11-05

申请号：US14889063

申请日：2014-06-02

申请人： CGG SERVICES SA

发明人： Julien Meunier ,  Thomas Bianchi ,  Fabien Espeute

IPC分类号： G01V1/30 ,  G01V1/28 ,  G01V1/32

摘要： Methods and systems for deriving S-wave velocity information from the low-frequency content of ambient noise are described. The ambient noise can be collected on a dedicated record or on a production record associated with the receivers of a three-dimensional seismic survey. The methods and systems use one of a plurality of analysis models selected based on quality factors of the ambient noise data. The methods and systems analyze the data at a plurality of single frequencies then transform the velocity versus frequency data into velocity versus depth data.

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

IPC分类号： G01V1/00 ,  G01V1/02 ,  G01V1/09

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.

公开(公告)号：US09519071B2

公开(公告)日：2016-12-13

申请号：US14197764

申请日：2014-03-05

申请人： CGG SERVICES SA

发明人： Cecile Berron ,  Julien Meunier

IPC分类号： G01V1/02 ,  H04B1/02 ,  G01V1/00 ,  G01V1/04 ,  G01V1/34 ,  G01V1/42 ,  G01V1/40 ,  G01V1/38

CPC分类号： G01V1/04 ,  G01V1/006 ,  G01V1/345 ,  G01V1/3861 ,  G01V1/40 ,  G01V1/42 ,  G01V2210/127 ,  G01V2210/1299 ,  G01V2210/56

摘要： Apparatus, computer instructions and method for controlling an energy output of a source array to be used in a seismic survey for illuminating a subsurface. The method includes generating a model (β) based on up-going (U) and down-going (D) components of seismic waves generated by source elements that form the source array; calculating the amplitudes and phases of each source element based on the model (β); and driving the source array based on the calculated amplitudes and phases for the source elements so that a ghost generated by the source array is reduced at emission.

摘要翻译： 用于控制用于地震勘测中用于照射地下的源阵列的能量输出的装置，计算机指令和方法。 该方法包括基于形成源阵列的源元素产生的地震波的上行（U）和下行（D）分量来生成模型（β）; 基于模型（β）计算每个源元素的幅度和相位; 并且基于所计算的源元件的幅度和相位驱动源阵列，使得源阵列产生的重影在发射时减小。