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1.发明申请公开(公告)号：US20180284307A1
公开(公告)日：2018-10-04
申请号：US15471690
申请日：2017-03-28
发明人： Simon Cordery
CPC分类号： G01V1/368 , G01V1/30 , G01V1/301 , G01V1/362 , G01V2210/22 , G01V2210/324 , G01V2210/53 , G01V2210/584 , G01V2210/6222
摘要： A method for processing broadband single-sensor single-source land seismic data includes receiving seismic traces, the seismic traces generated using at least one source and at least one receiver; converting the seismic traces from particle motion measured by the at least one receiver to particle motion represented by the at least one source by applying a deterministic differential filtering operation; applying a deterministic inverse-Q filtering operation on the converted seismic traces; processing the inverse-Q filtered seismic traces using a set of surface-consistent filter and attribute corrections; and generating a seismic image based on the processed seismic traces.
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公开(公告)号：US20170299741A1
公开(公告)日：2017-10-19
申请号：US15485267
申请日：2017-04-12
申请人： CGG SERVICES SAS
发明人： Corentin CHIFFOT
CPC分类号： G01V1/282 , G01V1/003 , G01V1/36 , G01V2210/53 , G01V2210/614 , G01V2210/679
摘要： Surface wave coda in seismic data recorded with a data acquisition system over an underground formation is estimated using time-reversal experiments. First time-reversal experiments use a first time-reversal mirror including a target source and one or more other sources to obtain estimates of surface waves traveling from other receivers to a target receiver. Second time-reversal experiments obtain a coda estimate for a surface wave traveling from the target source to the target receiver using a second time-reversal mirror including the target receiver and the other receivers.
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公开(公告)号：US20170068008A1
公开(公告)日：2017-03-09
申请号：US14845627
申请日：2015-09-04
IPC分类号： G01V1/36
CPC分类号： G01V1/362 , G01V1/288 , G01V2210/53
摘要： Seismic data from seismic exploration surveys are mapped into a hypercube of bins or voxels in a four-dimensional space (X, Y, Offset, and Azimuth) according to Common Mid-Point (or CMP) between source and receivers. The mapped data from individual voxels or bins is then analyzed by multimodal statistics. Robust estimates of first break picks are obtained from the analysis. The first break picks are then used to as seed inputs for autopicking iteration, which proceeds to convergence. Estimates of confidence levels in the data are provided for re-picking to reduce computer processing time in successive autopicking iterations. Analysis is provided of different seismic attributes such as azimuthal velocity variations indicative of anisotropy, positioning errors of sources/receivers, geometry errors, and three dimensional distribution of inversion residuals. Analysis is also performed of standard deviation of the travel time data useful for estimating data errors in the inversion covariance matrix.
摘要翻译： 根据源和接收器之间的公共中点（或CMP），来自地震勘探调查的地震数据被映射到四维空间（X，Y，偏移和方位角）中的仓库或体素的超立方体。 然后通过多模态统计分析来自各个体素或分区的映射数据。 从分析中获得第一批选择的稳健估计。 然后，第一个中断选择被用作自动迭代的种子输入，进行收敛。 提供数据中置信水平的估算用于重新选择以减少连续自动重复迭代中的计算机处理时间。 提供不同地震属性的分析，例如指示各向异性的方位速度变化，源/接收机的定位误差，几何误差和反演残差的三维分布。 还对用于估计反演协方差矩阵中的数据误差的行进时间数据的标准偏差进行分析。
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公开(公告)号：US09348049B2
公开(公告)日：2016-05-24
申请号：US13611650
申请日：2012-09-12
申请人： David Le Meur , Guillaume Poulain
发明人： David Le Meur , Guillaume Poulain
CPC分类号： G01V1/362 , G01V2210/53
摘要： Methods and systems for estimating the residual static terms for multi-component land datasets are described. A one-pass estimation simultaneously using P-P pre-stack data and P-S pre-stack data for generating common source residual statics for the P-P data and the P-S data and separate receiver residual statics for the P-P data and the P-S data. A series of iterations are performed using either a linear or a non-linear simulation to converge on acceptable residual statics.
摘要翻译： 描述了用于估计多组分土地数据集的残留静态项的方法和系统。 同时使用P-P叠前数据和P-S预堆叠数据同时生成用于P-P数据和P-S数据的公共源残留静态的单遍估计和用于P-P数据和P-S数据的单独接收器残留静态。 使用线性或非线性模拟进行一系列迭代，以收敛于可接受的残差静态。
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公开(公告)号：US09086505B2
公开(公告)日：2015-07-21
申请号：US13405871
申请日：2012-02-27
CPC分类号： G01V1/36 , G01V1/00 , G01V1/28 , G01V1/305 , G01V1/308 , G01V1/34 , G01V1/366 , G01V1/375 , G01V1/38 , G01V2210/32 , G01V2210/53 , G01V2210/612 , G01V2210/6122
摘要： Method, computer device and software for calculating a corrected temporal variation (dt1)depth or a corrected relative temporal variation (dt1/t1)depth of a first body wave based on a second body wave. The method includes receiving raw seismic data recorded with a receiver; calculating arrival-time variations for the first and second body waves; calculating first and second relative temporal variations for the first and second body waves; and correcting the first relative temporal variation based on the second relative temporal variation to obtain the corrected relative temporal variation or correcting the first temporal variation based on the second temporal variation to obtain the corrected temporal variation. The second wave is either a body wave or a surface wave.
摘要翻译： 用于计算基于第二体波的第一体波的校正时间变化（dt1）深度或校正的相对时间变化（dt1 / t1）深度的方法，计算机设备和软件。 该方法包括接收用接收机记录的原始地震数据; 计算第一和第二体波的到达时间变化; 计算第一和第二体波的第一和第二相对时间变化; 以及基于所述第二相对时间变化来校正所述第一相对时间变化，以获得所述校正的相对时间变化，或者基于所述第二时间变化来校正所述第一时间变化，以获得所述校正的时间变化。 第二波是身体波或表面波。
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公开(公告)号：US20130182537A1
公开(公告)日：2013-07-18
申请号：US13739585
申请日：2013-01-11
发明人： Pierre HUGONNET
IPC分类号： G01V1/36
CPC分类号： G01V1/36 , G01V2210/20 , G01V2210/53
摘要： Computing device and method for calculating time-shifts associated with travel-times of seismic waves emitted by a source and recorded by plural seismic detectors after reflection from a subsurface structure. The method includes receiving seismic data (d) that includes plural traces related to a subsurface, wherein the seismic data (d) is in a time-space domain; transforming with a processor the seismic data (d) from the time-space domain to a radon domain; picking linear events from the seismic data in the radon domain; calculating the time-shifts associated with the picked linear events; correcting the seismic data (d) based on the time-shifts to obtain new seismic data (d′); and computing an image of the subsurface based on the new seismic data (d′). The time-shifts are calculated per trace and per event.
摘要翻译： 用于计算与来自地震发射的地震波的行进时间相关联的时移的计算装置和方法，并且从地下结构反射后由多个地震检测器记录。 该方法包括接收包括与地下相关的多个迹线的地震数据（d），其中地震数据（d）处于时空域; 用处理器将地震数据（d）从时空域转变为氡域; 从氡域的地震数据中挑选线性事件; 计算与所选线性事件相关联的时移; 基于时移校正地震数据（d）以获得新的地震数据（d'）; 以及基于新的地震数据（d'）计算地下图像。 每个跟踪和每个事件计算时移。
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公开(公告)号：US07715987B2
公开(公告)日：2010-05-11
申请号：US12176356
申请日：2008-07-19
CPC分类号： G01V1/286 , G01V1/362 , G01V2210/53
摘要： A method of processing seismic data that includes including first and second modes of seismic energy where the second mode has been generated by partial mode conversion of the first mode at a boundary face of a layer of the seabed includes the step of cross-correlating a trace acquired at a receiver and including events corresponding to the first mode with a trace acquired at the same receiver and including events corresponding to the second mode. An event in the cross-correlated data that corresponds to partial mode conversion is identified, and the amplitude of this event is normalized, for example relative to the amplitude of the peak in the cross-correlogram at zero time delay. Information about the effects of the static shift produced by the layer and/or about vector infidelity can be arrived from normalized cross-correlograms for receivers in a receiver array.
摘要翻译： 一种处理地震数据的方法，包括包括地震能量的第一和第二模式，其中通过在海底层的边界面处的第一模式的部分模式转换已经产生第二模式，包括将迹线互相关的步骤 在接收机处获取并且包括与在第一模式相对应的事件，其中在同一接收机处获取的跟踪包括与第二模式对应的事件。 识别对应于部分模式转换的交叉相关数据中的事件，并且该事件的幅度例如相对于零时间延迟的交叉相关中的峰值的幅度被归一化。 关于由层产生的静态移位和/或关于向量不忠的影响的信息可以从接收机阵列中的接收机的标准化交叉相关图得出。
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8.发明授权Method of and apparatus for processing seismic data in the presence of anisotropy 有权在存在各向异性的情况下处理地震数据的方法和装置公开(公告)号：US07408836B2
公开(公告)日：2008-08-05
申请号：US10498173
申请日：2002-12-19
IPC分类号： G01V1/28
CPC分类号： G01V1/286 , G01V1/303 , G01V1/362 , G01V1/3808 , G01V2210/53
摘要： A method of and apparatus for processing seismic data. A method of processing seismic data comprising the steps acquiring seismic data in at least two shots that have different source-receiver azimuths from one another, and selecting events arising from interface seismic waves in each shot. The interface wave events are processed to provide information about azimuthal dependence of the velocity of seismic energy in the near-surface of the earth's interior. The invention may be used to process events arising from Scholte waves in marine seismic data, or to processing events arising from Love waves or Rayleigh waves in land seismic data. The method may be applied to seismic data acquired specifically to provide information about the near-surface or to seismic data acquired to provide information about the underlying geological structure.
摘要翻译： 一种用于处理地震数据的方法和装置。 一种处理地震数据的方法，包括以下步骤：在至少两个拍摄中采集彼此具有不同的源 - 接收机方位角的地震数据，以及选择每个镜头中由接口地震波产生的事件。 处理界面波事件以提供关于地球内部近地表的地震能量的方位角依赖性的信息。 本发明可用于处理海洋地震数据中Scholte波产生的事件，或用于处理由陆地地震资料中的爱波或瑞利波引起的事件。 该方法可以应用于专门获得的地震数据，以提供关于近地表或获取的地震数据的信息，以提供关于下面的地质结构的信息。
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公开(公告)号：US20060092764A1
公开(公告)日：2006-05-04
申请号：US10502451
申请日：2003-01-20
申请人： Johan Robertsson , Andrew Curtis , Dirk-Jan Manen
发明人： Johan Robertsson , Andrew Curtis , Dirk-Jan Manen
IPC分类号： G01V1/00
CPC分类号： G01V1/286 , G01V1/362 , G01V2210/53
摘要： A method of processing seismic data that includes including first and second modes of seismic energy where the second mode has been generated by partial mode conversion of the first mode at a boundary face of a layer of the seabed includes the step of cross-correlating a trace acquired at a receiver and including events corresponding to the first mode with a trace acquired at the same receiver and including events corresponding to the second mode. An event in the cross-correlated data that corresponds to partial mode conversion is identified, and the amplitude of this event is normalised, for example relative to the amplitude of the peak in the cross-correlogram at zero time delay. Information about the effects of the static shift produced by the layer and/or about vector infidelity can be arrived from normalised cross-correlograms for receivers in a receiver array.
摘要翻译： 一种处理地震数据的方法，包括包括地震能量的第一和第二模式，其中通过在海底层的边界面处的第一模式的部分模式转换已经产生第二模式，包括将迹线互相关的步骤 在接收机处获取并且包括与在第一模式相对应的事件，其中在同一接收机处获取的跟踪包括与第二模式对应的事件。 识别对应于部分模式转换的交叉相关数据中的事件，并且该事件的幅度例如相对于零时间延迟的交叉相关中的峰值的幅度被归一化。 关于由层产生的静态移位和/或关于向量不忠的影响的信息可以从接收机阵列中的接收机的标准化交叉相关图得出。
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10.发明授权Method for determining primary static corrections to be applied to seismic traces 失效用于确定要应用于地震轨迹的主要静态校正的方法公开(公告)号：US06917881B2
公开(公告)日：2005-07-12
申请号：US10417090
申请日：2003-04-17
CPC分类号： G01V1/362 , G01V2210/53
摘要： A method is disclosed for determining, without carrying out a well-velocity survey or making a priori assumption on the velocity of the first medium, the primary static corrections to be applied to sets of seismic traces after seismic prospecting operations in an underground zone. A velocity model allows calculation of the corrections is essentially obtained by performing, for each position of the common midpoint, a continuous and progressive inversion of the first arrival times (time-distance curves), from short offsets to longer offsets, so as to allow going from a sequence of pairs connecting the offsets to the arrival times picked to a sequence of vertical data connecting the depth to the velocity or propagation of the waves.
摘要翻译： 公开了一种用于确定在不对第一介质的速度进行良好速度测量或先验假设的情况下确定在地下区域的地震勘探操作之后应用于地震轨迹集合的主要静态校正。 速度模型允许对校正的计算基本上通过对于公共中点的每个位置执行第一到达时间（时间距离曲线）的连续和逐行反转，从短偏移到较长的偏移，从而允许 从连接偏移到到达时间的对的序列到从连接深度到波的速度或传播的垂直数据序列。
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