公开(公告)号：EP2703848A3

公开(公告)日：2018-03-28

申请号：EP13182367.6

申请日：2013-08-30

申请人： CGG Services SA

发明人： Winnett, Richard

IPC分类号： G01V1/36 ,  G01V1/38

CPC分类号： G01V1/28 ,  G01V1/364 ,  G01V1/38 ,  G01V1/3808 ,  G01V2210/123 ,  G01V2210/1293 ,  G01V2210/52 ,  G01V2210/53 ,  G01V2210/56 ,  G01V2210/614

摘要： A method for de-ghosting marine seismic trace data is described. A reference seismic trace and a candidate seismic trace are selected from acquired seismic data. The acquired seismic data is gathered using a configuration wherein either a first streamer and a second streamer are disposed at different depths relative to one another and are laterally offset relative to one another, or using a configuration wherein a first source and a second source are disposed at different depths relative to one another and are laterally offset from one another. The reference seismic trace and the candidate seismic trace are processed, e.g., to perform normal moveout correction and/or vertical datum shifting, and the processed reference seismic trace is de-ghosted using the processed, candidate seismic trace.

摘要翻译： 描述了一种用于去重影海洋地震道踪迹数据的方法。 从采集的地震数据中选择参考地震道和候选地震道。 采集的地震数据采用这样的构造来收集，其中第一拖缆和第二拖缆相对于彼此以不同的深度布置并且相对于彼此横向偏移，或者使用其中布置第一源和第二源的配置 在相对于彼此的不同深度处并且彼此横向偏移。 对参考地震道和候选地震道进行处理，例如以执行正常时差校正和/或垂直基准移位，并且使用处理过的候选地震道对处理后的参考地震道进行去鬼影。

公开(公告)号：EP2755057A3

公开(公告)日：2017-12-20

申请号：EP14150941.4

申请日：2014-01-13

申请人： CGG Services SA

发明人： Wu, Xiang

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V1/36 ,  G01V2210/56

摘要： Methods and systems for separating multiple events from primary events in noisy seismic data are described. Multiples are predicted and then the predictions are improved by least-square matching filtering in the space and time domain. An adaptive curvelet domain separation (ACDS) is then performed and the ACDS equation is solved with an iterative soft-thresholding technique. Further processing can be added to compensate for prediction inaccuracy or variable/excessive seismic data noise by dividing the seismic data into predetermined bands and processing each band independently.

摘要翻译： 描述了用于从噪声地震数据中的主要事件分离多个事件的方法和系统。 预测多个，然后通过空间和时间域中的最小二乘匹配滤波来改进预测。 然后执行自适应曲波域分离（ACDS），并使用迭代软阈值技术来求解ACDS方程。 通过将地震数据分成预定的频带并独立处理每个频带，可以进一步处理以补偿预测不准确或可变/过度的地震数据噪声。

公开(公告)号：EP2613179A3

公开(公告)日：2017-12-13

申请号：EP13150131.4

申请日：2013-01-03

申请人： CGG Services SA

发明人： Mandroux, Fabrice ,  Lenart, Alexandre

IPC分类号： G01V1/38

CPC分类号： G01V1/3808

摘要： Methods and systems for improving azimuth distribution in a seismic acquisition system are described. A survey acquisition system includes a plurality of streamers towed by a plurality of streamer vessels, including a first streamer vessel (202) and a second streamer vessel (204) and a plurality of sources towed by a plurality of source vessels (206, 208, 210). The plurality of streamer vessels and plurality of source vessels are configured relative to one another such that the plurality of source vessels (206, 208, 210) are positioned at one or more predetermined inline distances behind a portion of the first streamer vessel and are also positioned at one or more predetermined inline distances in front of a portion of the second streamer vessel. The plurality of streamer vessels and plurality of source vessels are also spaced apart from one another in a cross-line direction.

摘要翻译： 描述了用于改善地震采集系统中的方位分布的方法和系统。 测量采集系统包括由多个拖缆船拖曳的多个拖缆，所述拖缆船包括第一拖缆船（202）和第二拖缆船（204）以及由多个源船（206,208,205）拖曳的多个源， 210）。 所述多个拖缆船和多个源船被相对于彼此配置，使得所述多个源船（206,208,210）被定位在所述第一拖缆船的一部分后面的一个或多个预定线上距离处，并且也是 定位在第二拖缆船的一部分前方的一个或多个预定的行内距离处。 多个拖缆船舶和多个源船舶也在交叉线方向上彼此间隔开。

公开(公告)号：EP2743733A3

公开(公告)日：2017-11-22

申请号：EP13197018.8

申请日：2013-12-12

申请人： CGG Services SA

发明人： Sallas, John James ,  Winter, Olivier

IPC分类号： G01V1/00

CPC分类号： G01V1/005

摘要： Controller and method for generating a frequency sweep for a seismic survey that uses a seismic source. The method includes receiving (1000) specification data about the seismic source (1110); receiving (1002) environmental data (300) about an infrastructure affected by the seismic survey; receiving (1004) guideline data about the infrastructure; setting (1006) a target energy spectrum density to be emitted by the seismic source (1110) during the seismic survey; and calculating (1008), in a processor (1202), the frequency sweep based on the specification data, environmental data, guideline data and the target energy spectrum density.

摘要翻译： 用于为使用地震源的地震勘测产生频率扫描的控制器和方法。 该方法包括接收（1000）关于地震源（1110）的规范数据; 接收（1002）关于受所述地震勘测影响的基础设施的环境数据（300）; 接收（1004）关于所述基础设施的指南数据; 设置（1006）在地震勘测期间由地震源（1110）发射的目标能量谱密度; 以及在处理器（1202）中基于规格数据，环境数据，指南数据和目标能谱密度来计算（1008）频率扫描。

公开(公告)号：EP2645132A3

公开(公告)日：2017-11-08

申请号：EP13161854.8

申请日：2013-03-29

申请人： CGG Services SA

发明人： Cotton, Julien ,  Bianchi, Thomas

IPC分类号： G01V1/30 ,  G01V1/28

CPC分类号： G01V1/308 ,  G01V1/28 ,  G01V2210/1299 ,  G01V2210/1429 ,  G01V2210/53 ,  G01V2210/612 ,  G01V2210/6122 ,  G01V2210/67

摘要： A method for processing seismic data acquired using the same seismic survey setup over long periods of time includes acquiring sets of seismic data using the same seismic survey setup over multiple days, the sets being gathered as repeated seismic data. The method further includes estimating a time-variable wavelet corresponding to unwanted waves, and determining a propagation of the time-variable wavelet, which propagation is assumed to be constant in time, by solving an inverse problem using the repeated seismic data and the estimated time-variable wavelet. The method also includes extracting signal data by subtracting a convolution of the estimated time-variable wavelet and the propagation from the repeated seismic data.

摘要翻译： 处理使用长时间相同的地震勘测设置获取的地震数据的方法包括使用相同的地震勘测设置在多天内获取多组地震数据，这些集合被收集为重复的地震数据。 该方法还包括通过使用重复的地震数据和估计的时间求解逆问题来估计对应于不想要的波的随时间变化的小波，并且确定时间可变的小波的传播，该传播被假定为在时间上恒定 - 可变小波。 该方法还包括通过从重复的地震数据中减去估计的时变小波和传播的卷积来提取信号数据。

公开(公告)号：EP2994775B1

公开(公告)日：2017-09-06

申请号：EP14726898.1

申请日：2014-05-07

申请人： CGG Services SA

发明人： IBN SEDDIK, Mohamed Saad ,  JAULIN, Luc

IPC分类号： G01S15/66 ,  G01V1/38

CPC分类号： G01S3/808 ,  G01S3/8086 ,  G01V1/3835

公开(公告)号：EP2713183A3

公开(公告)日：2017-08-30

申请号：EP13186112.2

申请日：2013-09-26

申请人： CGG Services SA

发明人： Grésillon, Francois Xavier

IPC分类号： G01V1/02

CPC分类号： G01V1/159 ,  G01V1/40

摘要： Seismic wave sources and related methods are provided. A seismic wave source includes a housing (110), plural pillars and an excitation system. The housing is split in two halves (112,114) along a plane including a longitudinal axis of the housing. The plural pillars are made of piezoelectric elements and are positioned inside the housing to have one end in contact with a semi-cylindrical middle portion of one half of the housing and another end in contact with a semi-cylindrical middle portion of the other half of the housing. The excitation system connected by wires to the plural pillars and is configured to provide electrical signals to the piezoelectric elements. Upon receiving the electrical signals from the excitation system, the pillars generate forces on the housing thereby generating seismic waves.

摘要翻译： 提供地震波源和相关方法。 地震波源包括壳体（110），多个支柱和激励系统。 壳体沿着包括壳体的纵向轴线的平面分成两半（112,114）。 多个柱由压电元件制成，并且定位在壳体内部，以使其一端与壳体一半的半圆柱形中间部分接触，另一端与另一半壳体的半圆柱形中间部分接触 住房。 激励系统通过导线连接到多个支柱并且被配置为向压电元件提供电信号。 在接收到来自激励系统的电信号后，支柱在壳体上产生力，从而产生地震波。

公开(公告)号：EP2620789A3

公开(公告)日：2017-08-09

申请号：EP13152547.9

申请日：2013-01-24

申请人： CGG Services SA

发明人： Siliqi, Risto ,  Mensch, Thomas ,  Grenie, Damien

IPC分类号： G01V1/38

CPC分类号： G01V1/3808

摘要： Method for determining a seismic survey configuration of a multi-vessel acquisition system. The method includes a step of receiving (800) a number that corresponds to vessels to be used in the multi-vessel acquisition system (300); a step of receiving (802) a cross-line distance (350) between first and last straight line paths (322, 324) corresponding to first and last vessels (302, 304), respectively, of the multi-vessel acquisition system (300); a step of receiving (804) an inline distance (345) between the first and last vessels (302, 304); a step of selecting (806) shapes of undulating paths for the vessels of the multi-vessel acquisition system (300); a step of receiving (808) a desired azimuth and/or offset distribution of receivers towed by one or more streamer vessels of the multi-vessel acquisition system (300) relative to source vessels of the multi-vessel acquisition system (300); and a step of calculating (810) amplitudes (A i ), periods (T i ) and phases of the undulating paths.

摘要翻译： 用于确定多船采集系统的地震勘测配置的方法。 该方法包括接收（800）与在多船采集系统（300）中使用的船只相对应的号码的步骤; 接收（802）分别对应于多船采集系统（300）的第一船和最后船（302,304）的第一和最后直线路径（322,324）之间的交叉线距离（350） ）; 接收（804）第一和最后一个容器（302,304）之间的内联距离（345）的步骤; 选择（806）多容器采集系统（300）的容器的起伏路径的形状的步骤; 接收（808）由所述多船采集系统（300）的一个或多个拖缆船相对于所述多船采集系统（300）的源船拖曳的接收器的期望的方位和/或偏移分布的步骤; 以及计算（810）波动路径的幅度（Ai），周期（Ti）和相位的步骤。

公开(公告)号：EP3170028A1

公开(公告)日：2017-05-24

申请号：EP15781396.5

申请日：2015-07-16

申请人： CGG Services SA

发明人： WINNETT, Richard ,  MONTGOMERY, Bob ,  POOLE, Gordon ,  ROHNKE, Jonas ,  SVAY, Julie ,  SALLAS, John

IPC分类号： G01V1/00 ,  G01V1/20 ,  G01V1/38

CPC分类号： G01V1/3808 ,  G01V1/005 ,  G01V1/20

摘要： During seismic data acquisition the seismic sources and/or seismic receivers are deployed according to an irregular arrangement departing in a predetermined manner from repetitive spatial patterns formed by or within groups of adjacent among the seismic sources or adjacent among the receivers. Additionally or alternatively, source activation moments of the sources within a series of source firing time intervals are determined using Golomb ruler sequences or a non-linear inversion.

摘要翻译： 在地震数据采集过程中，地震源和/或地震接收机是按照以预定的方式从不同地震源之间或相邻的接收器之间形成的重复空间图形或在其内的邻近的震源之间组成的不规则布置来展开的。 附加地或替代地，使用哥伦布尺子序列或非线性反演确定一系列源点火时间间隔内的源的源激活力矩。

公开(公告)号：EP2775322A3

公开(公告)日：2017-05-10

申请号：EP14157489.7

申请日：2014-03-03

申请人： CGG Services SA

发明人： Gratacos, Bruno

IPC分类号： G01V1/36 ,  G01V1/38

CPC分类号： G01V1/307 ,  G01V1/34 ,  G01V1/36 ,  G01V1/38

摘要： Computing device, system and method for calculating an estimate far-field signature ( ) of a seismic source. The method includes receiving (200) seismic data collected with seismic sensors (128) having a variable-depth distribution so that ghost diversity is present; stacking (202) the seismic data at the sea floor; calculating (212) in a processor (802) the estimate far-field signature ( ) based on a ghost period (t i ) and a relative amplitude (γ i ) of two traces from the seismic data; and generating a final image of sub-surface based on the estimate far-field signature ( ).

摘要翻译： 计算设备，系统和方法，用于计算一个地震源的估计远场特征（）。 该方法包括接收与地震传感器（128），其具有可变深度分布所以没有鬼多样性存在收集（200）的地震数据; 堆叠（202）在海底的地震数据; 计算（212）相对于基于鬼期间（t i）处理器（802）的估计远场特征（）和从地震数据两条迹线的振幅（³ⅰ）; 以及基于所述估计远场特征的子表面的最终图像（）。