公开(公告)号：US20160131776A1

公开(公告)日：2016-05-12

申请号：US14894560

申请日：2014-06-25

Applicant: CGG SERVICES SA

Inventor： Kaelig CASTOR ,  Thomas BIANCHI ,  John SALLAS

IPC: G01V1/00

CPC classification number: G01V1/005 ,  G01V2210/1214 ,  G01V2210/127

Abstract: Computing device, computer software and methods for generating sweep signals corresponding to plural sources that generate seismic waves. The method includes selecting (502) a nominal sweep signal (S0); applying (512) a perturbation (P) to the nominal sweep signal (S0); and calculating (518) the sweep signals (Sn) by varying the perturbation (P), each sweep signal corresponding to a seismic source.

Abstract translation: 用于产生对应于产生地震波的多个源的扫描信号的计算设备，计算机软件和方法。 该方法包括选择（502）标称扫描信号（S0）; 将（512）扰动（P）应用于标称扫描信号（S0）; 以及通过改变扰动（P）来计算（518）扫描信号（Sn），每个扫描信号对应于地震源。

公开(公告)号：US20160077226A1

公开(公告)日：2016-03-17

申请号：US14786132

申请日：2014-04-30

Applicant: CGG SERVICES SA

Inventor： Thomas BIANCHI ,  Julien MEUNIER ,  Olivier WINTER

IPC: G01V1/00 ,  G01V1/09

CPC classification number: G01V1/005 ,  G01V1/09 ,  G01V2210/127

Abstract: 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.

Abstract translation: 地下地层地震勘探方法通过同时启动紧密定位的振动源来提高生产率。 对由同时启动的不同源产生的各个振动进行编码，以便分离与各个振动对应的地震数据。

公开(公告)号：US20160154131A1

公开(公告)日：2016-06-02

申请号：US14897002

申请日：2014-06-26

Applicant: CGG SERVICES SA

Inventor： Matthieu GUILLOUET ,  Olivier WINTER ,  Thomas BIANCHI

IPC: G01V1/37 ,  G01V1/00

CPC classification number: G01V1/375 ,  G01V1/005 ,  G01V2210/50

Abstract: 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.

Abstract translation: 描述用于分离使用多个基本上同时燃烧的源获取的地震数据的方法和系统。 源使用具有低互相关水平的扫描序列来产生地震波，并且确定其源特征。 使用源签名，通过例如执行时域反卷积从地震数据中提取与每个源相关联的波场。

公开(公告)号：US20160170049A1

公开(公告)日：2016-06-16

申请号：US15051942

申请日：2016-02-24

Applicant: CGG SERVICES SA

Inventor： Kaelig CASTOR ,  Olivier WINTER ,  Thomas BIANCHI

IPC: G01V1/04

CPC classification number: G01V1/04

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160070013A1

公开(公告)日：2016-03-10

申请号：US14889063

申请日：2014-06-02

Applicant: CGG SERVICES SA

Inventor： Julien MEUNIER ,  Thomas BIANCHI ,  Fabien ESPEUTE

IPC: G01V1/30 ,  G01V1/32

CPC classification number: G01V1/303 ,  G01V1/28 ,  G01V1/30 ,  G01V1/32 ,  G01V2210/123 ,  G01V2210/40 ,  G01V2210/6222 ,  G01V2210/65

Abstract: 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.

Abstract translation: 描述了从环境噪声的低频内容导出S波速度信息的方法和系统。 环境噪声可以在与三维地震勘测的接收器相关联的专用记录或生产记录上收集。 方法和系统使用基于环境噪声数据的质量因素选择的多个分析模型之一。 方法和系统以多个单个频率分析数据，然后将速度与频率数据转换为速度与深度数据。