公开(公告)号：US10386518B2

公开(公告)日：2019-08-20

申请号：US14682361

申请日：2015-04-09

Applicant: CGG SERVICES SA

Inventor： Chao Peng ,  Bin Liu ,  Adel Khalil ,  Gordon Poole

IPC: G01V1/36

Abstract: A device, medium and method for deblending seismic data associated with a subsurface of the earth. The method includes a step of receiving seismic data S recorded with one or more seismic receivers, wherein the seismic data S includes shot recordings generated by first and second source arrays that are simultaneously actuated; a step of detecting incoherent energy of the seismic data S using a median filter; a step of replacing incoherent parts of the seismic data with a projection filter to obtain deblended data for one of the two or more source arrays; and a step of generating in a computing device an image of the subsurface based on the deblended data.

公开(公告)号：US10338251B2

公开(公告)日：2019-07-02

申请号：US15125257

申请日：2015-03-24

Applicant: CGG SERVICES SA

Inventor： Chang-Chun Lee ,  Yunfeng Li ,  Suryadeep Ray ,  Gordon Poole

IPC: G01V1/36 ,  G01V1/38

Abstract: Methods and apparatuses for directional designature in shot domain are provided. Azimuth and take-off angles are calculated for each record in the seismic data. Directional designature is then applied to the seismic data using a source signature dependent on the azimuth and take-off angles.

公开(公告)号：US10274622B2

公开(公告)日：2019-04-30

申请号：US14243851

申请日：2014-04-02

Applicant: CGG SERVICES SA

Inventor： Thomas Mensch ,  Helene Tonchia ,  Gordon Poole

IPC: G01V1/24 ,  G01V1/00 ,  G01V1/36 ,  G01V1/38

Abstract: System, medium and method for de-blending seismic data. The method for acquiring blended seismic data associated with a subsurface of the earth includes receiving coordinates of a sail line associated with first and second shot point locations; towing first and second source arrays in water along the sail line; shooting the first and second source arrays with a constant delay parameter so that a seismic trace recorded by a seismic sensor has at least a first uncontaminated portion that includes seismic energy generated substantially only by one of the first and second source arrays and a second portion that includes seismic energy generated by both the first and second source arrays; and recording blended seismic data generated by the first and second source arrays with the seismic sensor.

公开(公告)号：US10107928B2

公开(公告)日：2018-10-23

申请号：US15216179

申请日：2016-07-21

Applicant: CGG SERVICES SA

Inventor： Yoong Ern Lee ,  Chris Davison ,  Gordon Poole

IPC: G01V1/36 ,  G01V1/28 ,  G01V1/38

Abstract: A method for removing ocean bottom and/or geology related contamination. The method includes receiving first measurements corresponding to first seismic sensors mounted on a first source array; receiving second measurements corresponding to second seismic sensors mounted away from the first source array; processing the second measurements to determine a contamination model related to the ocean bottom and geology; removing the contamination model from the first measurements to obtain cleaned data; and calculating a source signature of the first source array based on the cleaned data.

公开(公告)号：US09804284B2

公开(公告)日：2017-10-31

申请号：US14915932

申请日：2014-09-12

Applicant: CGG SERVICES SA

Inventor： Gordon Poole ,  Robert Dowle

IPC: G01V1/38

CPC classification number: G01V1/3861 ,  G01V1/3808 ,  G01V1/3817 ,  G01V2210/127 ,  G01V2210/1293 ,  G01V2210/56

Abstract: A marine seismic source includes source elements configured to emit waves having different frequencies while the source elements are towed at different predetermined depths, respectively. The predetermined depths are calculated such that water-surface reflections of the waves generated by a source element among the source elements interfere constructively with the waves generated by the source element and propagating toward an explored structure under the seafloor. The waves combine to yield a spike-like signature of the source.

公开(公告)号：US09442208B2

公开(公告)日：2016-09-13

申请号：US14050161

申请日：2013-10-09

Applicant: CGG Services SA

Inventor： Gordon Poole

IPC: G01V1/38 ,  G01V1/28 ,  G01V1/36

CPC classification number: G01V1/36 ,  G01V1/38 ,  G01V2210/44 ,  G01V2210/46 ,  G01V2210/51 ,  G01V2210/56

Abstract: Computing device, computer instructions and method for de-ghosting seismic data related to a subsurface. The method may include receiving input seismic data recorded by seismic receivers that located at different depths (zr), generating migration data (du) and mirror migration data (dd) from the input seismic data, deriving a ghost free model (m) based on simultaneously using the migration data (du) and mirror migration data (dd), generating primary (p) and ghost (g) datasets based on the ghost free model (m), simultaneously adaptively subtracting the primary (p) and ghost (g) datasets from the migration data (du) to provide adapted primary (p′1 and p′2) and adapted residual (r′1 and r′2) datasets, and generating a final image (f) of the subsurface based on the adapted primary (p′1 and p′2) and the adapted residual (r′1 and r′2) datasets. In certain embodiments, the input seismic data d includes both hydrophone data and particle motion data.

Abstract translation: 计算设备，计算机指令和方法，用于对与地下相关的地震数据进行重设。 该方法可以包括接收由位于不同深度（zr）处的地震接收器记录的输入地震数据，从输入的地震数据生成迁移数据（du）和镜像迁移数据（dd），基于 同时使用迁移数据（du）和镜像迁移数据（dd），基于无幽灵模型（m）生成主（p）和重影（g）数据集，同时自适应地减去主（p）和重影（g） 来自迁移数据的数据集（du），以提供适应的主要（p'1和p'2）和适应的残差（r'1和r'2）数据集，以及基于所适配的残差（r'1和r'2）数据集生成地下的最终图像（f） 初级（p'1和p'2）和适应残差（r'1和r'2）数据集。 在某些实施例中，输入地震数据d包括水听器数据和粒子运动数据。

公开(公告)号：US09395457B2

公开(公告)日：2016-07-19

申请号：US13927566

申请日：2013-06-26

Applicant: CGG SERVICES SA

Inventor： Gordon Poole

IPC: G01V1/38 ,  G01V1/36

CPC classification number: G01V1/38 ,  G01V1/36 ,  G01V1/3861 ,  G01V2210/24 ,  G01V2210/46 ,  G01V2210/47 ,  G01V2210/55 ,  G01V2210/56

Abstract: Computing device, computer instructions and method for directional designature of seismic data d with a given source directivity. The method includes obtaining directional operators r; calculating a model u with a modified source directivity based on (1) seismic data d, and (2) an operator that is a combination of the directional operators r and a reverse transform operator L; using the model u to obtain seismic data dfree with modified source directivity; and generating a final image of the subsurface using seismic data dfree.

Abstract translation: 具有给定源方向性的地震数据定向设计的计算设备，计算机指令和方法。 该方法包括获得定向算子r; 基于（1）地震数据d计算具有修改的源方向性的模型u，以及（2）作为方向运算符r和反向变换算子L的组合的运算符; 使用模型u获得具有修改的源方向性的地震数据; 并使用地震数据dfree生成地下的最终图像。

公开(公告)号：US09207345B2

公开(公告)日：2015-12-08

申请号：US14736675

申请日：2015-06-11

Applicant: CGG SERVICES SA

Inventor： Adel Khalil ,  Gordon Poole ,  Margherita Maraschini

IPC: G01V1/36 ,  G01V1/34

CPC classification number: G01V1/364 ,  G01V1/34 ,  G01V1/36 ,  G01V2210/20 ,  G01V2210/32

Abstract: Methods and devices for seismic data processing deblend seismic data gathered using simultaneous source acquisition by applying two different deblending techniques. The second deblending technique is applied to residual data obtained after applying the first deblending technique. At least one of these first and second deblending techniques uses a signal-to-noise map.

Abstract translation: 地震数据处理的方法和装置通过应用两种不同的去掉技术，利用同时源采集来收集地震数据。 第二次去除技术被应用于在应用第一次去除技术之后获得的剩余数据。 这些第一和第二去除技术中的至少一个使用信噪比映射。