公开(公告)号：US07764573B2

公开(公告)日：2010-07-27

申请号：US11733078

申请日：2007-04-09

申请人： Kattelmalvadi Ramaswamy Sandhya Devi

发明人： Kattelmalvadi Ramaswamy Sandhya Devi

IPC分类号： G01V1/00

CPC分类号： G01V1/30 ,  G01V1/32 ,  G01V2210/42

摘要： A method of processing seismic data, wherein a digital seismic trace is provided comprising at least one seismic loop. A selected discrete wavelet transform of the digital seismic trace is obtained as a function of scale sj and shifted sample time tk. From the discrete wavelet transform, a singularity spectrum is obtained for the at least one seismic loop, and a selected function is fitted to the singularity spectrum. Based on the fitted function, a reconstructed seismic trace may be calculated. The method may be embodied in the form of software code instructions in a computer program product.

摘要翻译： 一种处理地震数据的方法，其中提供包括至少一个地震回路的数字地震迹线。 获得数字地震轨迹的选择的离散小波变换作为尺度sj和移位采样时间tk的函数。 从离散小波变换得到至少一个地震回路的奇异谱，并将选定的函数拟合到奇异谱。 基于拟合函数，可以计算重建的地震轨迹。 该方法可以以计算机程序产品中的软件代码指令的形式来体现。

公开(公告)号：US20140278118A1

公开(公告)日：2014-09-18

申请号：US13803944

申请日：2013-03-14

申请人： Sandra Tegtmeier-Last ,  Bogdan Lukasz Kustowski ,  Douglas William Clark ,  Gilles Hennenfent ,  Harry Martin

发明人： Sandra Tegtmeier-Last ,  Bogdan Lukasz Kustowski ,  Douglas William Clark ,  Gilles Hennenfent ,  Harry Martin

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V2210/23 ,  G01V2210/24 ,  G01V2210/3246 ,  G01V2210/40 ,  G01V2210/42

摘要： A system and method for attenuating noise in seismic data representative of a subsurface region of interest including receiving a seismic dataset representative of seismic signal or seismic noise and a seismic dataset representative of seismic signal and noise, transforming them into a domain were they have sparse or compressible representation, comparing the sets of coefficients to identify desirable coefficients in the set of coefficients representing the signal and noise dataset, selecting the desirable coefficients to produce an improved set of coefficients, and inverse transforming the improved set of coefficients to produce a modified seismic dataset. The modified seismic dataset may be noise-attenuated seismic data or may be a noise model that is subtracted from the original data to produce noise-attenuated data.

摘要翻译： 用于衰减地震数据中表示地下感兴趣区域的噪声的系统和方法，包括接收代表地震信号或地震噪声的地震数据集，以及代表地震信号和噪声的地震数据集，将其变换为域，它们具有稀疏或 可压缩表示，比较系数集合以识别表示信号和噪声数据集的系数集合中的期望系数，选择期望的系数以产生改进的系数集合，以及逆变换改进的系数集合以产生经修改的地震数据集 。 改进的地震数据集可以是噪声衰减的地震数据，或者可以是从原始数据中减去的噪声模型，以产生噪声衰减的数据。

公开(公告)号：US20170115415A1

公开(公告)日：2017-04-27

申请号：US15307742

申请日：2015-04-28

申请人： WESTERNGECO LLC

发明人： Ali Ozbek ,  Massimiliano Vassallo ,  David Fraser Halliday ,  Jon-Fredrik Hopperstad ,  Robert Montgomery Laws

IPC分类号： G01V1/32 ,  G01V1/28

CPC分类号： G01V1/325 ,  G01V1/282 ,  G01V2210/42

摘要： A technique for reconstructing a seismic wavefield includes receiving data over one or more channels of a plurality of channels from a plurality of stations. The data is recorded by a plurality of seismic receivers and represent measurements of properties of the seismic wavefield. Each station includes a region in space including one or more seismic receivers. Each channel either measures a property of the seismic wavefield or a property of the seismic wavefield after the seismic wavefield has undergone a known transformation. At least one channel is derived as a function of one or more other channels. The technique includes using a processor based machine to process the data to model the seismic wavefield as a sum of basis functions; apply to the basis functions at least one forward transformation that describes the measurements received over the channel(s); and determine optimum basis functions based at least in part on the measurements.

公开(公告)号：US20150293241A1

公开(公告)日：2015-10-15

申请号：US14490912

申请日：2014-09-19

申请人： PGS Geophysical AS

发明人： Stian Hegna ,  Gregg E. Parkes

IPC分类号： G01V1/00 ,  G01V1/38

CPC分类号： G01V1/003 ,  G01V1/28 ,  G01V1/325 ,  G01V1/36 ,  G01V1/3808 ,  G01V2210/00 ,  G01V2210/129 ,  G01V2210/42 ,  G01V2210/56 ,  G01V2210/59

摘要： A method for seismic data acquisition can include near-continuously recording seismic data received from a number of seismic receivers and triggering a plurality of source elements, based upon time and not based upon position, at a predefined sequence of times relative to a start of a near-continuous recording.

摘要翻译： 用于地震数据采集的方法可以包括从多个地震接收器接收的近连续记录的地震数据，并且基于时间而不是基于位置触发多个源元件，并且以预定的顺序相对于 近连续录音。

公开(公告)号：US06903999B2

公开(公告)日：2005-06-07

申请号：US10181234

申请日：2001-01-19

申请人： Andrew Curtis ,  Johan Olof Anders Robertsson ,  Remco Muijs

发明人： Andrew Curtis ,  Johan Olof Anders Robertsson ,  Remco Muijs

IPC分类号： G01V1/20 ,  G01V1/28 ,  G01V1/30 ,  G01V1/32 ,  G01V1/36

CPC分类号： G01V1/286 ,  G01V1/20 ,  G01V1/30 ,  G01V1/32 ,  G01V1/364 ,  G01V2210/42

摘要： A method for estimating near-surface material properties in the vicinity of a locally dense group of seismic receivers is disclosed. The method includes receiving seismic data that has been measured by a locally dense group of seismic receivers. Local derivatives of the wavefield are estimated such that the derivatives are centered at a single location preferably using the Lax-Wendroff correction. Physical relationships between the estimated derivatives including the free surface condition and wave equations are used to estimate near-surface material properties in the vicinity of the receiver group. Another embodiment of the invention is disclosed wherein the physical relationships used to estimate material properties are derived from the physics of plane waves arriving at the receiver group, and the group of receivers does not include any buried receivers.

摘要翻译： 公开了一种用于估计局部密集的地震接收机组附近的近表面材料特性的方法。 该方法包括接收由局部密集的地震接收器组测量的地震数据。 估计波场的局部导数，使得导数优选地使用Lax-Wendroff校正在单个位置为中心。 使用估计的导数（包括自由表面条件和波动方程）之间的物理关系来估计接收器组附近的近地表面材料特性。 公开了本发明的另一个实施例，其中用于估计材料属性的物理关系是从到达接收器组的平面波的物理学得出的，并且接收器组不包括任何掩埋的接收器。

公开(公告)号：US20030117894A1

公开(公告)日：2003-06-26

申请号：US10181234

申请日：2002-10-16

发明人： Andrew Curtis ,  Johan Olof Anders Robertsson ,  Remco Muijs

IPC分类号： G01V001/00

CPC分类号： G01V1/286 ,  G01V1/20 ,  G01V1/30 ,  G01V1/32 ,  G01V1/364 ,  G01V2210/42

摘要： A method for estimating near-surface material properties in the vicinity of a locally dense group of seismic receivers is disclosed. The method includes receiving seismic data that has been measured by a locally dense group of seismic receivers. Local derivatives of the wavefield are estimated such that the derivatives are centered at a single location preferably using the Lax-Wendroff correction. Physical relationships between the estimated derivatives including the free surface condition and wave equations are used to estimate near-surface material properties in the vicinity of the receiver group. Another embodiment of the invention is disclosed wherein the physical relationships used to estimate material properties are derived from the physics of plane waves arriving at the receiver group, and the group of receivers does not include any buried receivers

摘要翻译： 公开了一种用于估计局部密集的地震接收机组附近的近表面材料特性的方法。 该方法包括接收由局部密集的地震接收器组测量的地震数据。 估计波场的局部导数，使得导数优选地使用Lax-Wendroff校正在单个位置为中心。 使用估计的导数（包括自由表面条件和波动方程）之间的物理关系来估计接收器组附近的近地表面材料性质。 公开了本发明的另一个实施例，其中用于估计材料属性的物理关系是从到达接收器组的平面波的物理学得出的，并且接收器组不包括任何掩埋接收器

公开(公告)号：US09903966B2

公开(公告)日：2018-02-27

申请号：US14490912

申请日：2014-09-19

申请人： PGS Geophysical AS

发明人： Stian Hegna ,  Gregg E Parkes

IPC分类号： G01V1/38 ,  G01V1/00 ,  G01V1/28 ,  G01V1/32 ,  G01V1/36

CPC分类号： G01V1/003 ,  G01V1/28 ,  G01V1/325 ,  G01V1/36 ,  G01V1/3808 ,  G01V2210/00 ,  G01V2210/129 ,  G01V2210/42 ,  G01V2210/56 ,  G01V2210/59

摘要： A method for seismic data acquisition can include near-continuously recording seismic data received from a number of seismic receivers and triggering a plurality of source elements, based upon time and not based upon position, at a predefined sequence of times relative to a start of a near-continuous recording.

公开(公告)号：US20150293242A1

公开(公告)日：2015-10-15

申请号：US14490974

申请日：2014-09-19

申请人： PGS Geophysical AS

发明人： Stian Hegna ,  Gregg E. Parkes

IPC分类号： G01V1/00 ,  G01V1/32 ,  G01V1/28 ,  G01V1/36

CPC分类号： G01V1/003 ,  G01V1/28 ,  G01V1/325 ,  G01V1/36 ,  G01V1/3808 ,  G01V2210/00 ,  G01V2210/129 ,  G01V2210/42 ,  G01V2210/56 ,  G01V2210/59

摘要： A method for seismic data processing can include obtaining seismic data acquired based upon trigger times and not based upon positions of triggered source elements. The seismic data can include near-continuously recorded seismic data in split records. The split records can be spliced together into a single near-continuous record to produce a trace with seismic data from a single acquired line. The seismic data can be processed by performing a spatial shift for each of a number of time samples to correct for motion of a number of seismic receivers.

摘要翻译： 用于地震数据处理的方法可以包括获得基于触发时间获取的地震数据，而不是基于触发源元件的位置。 地震数据可以包括分裂记录中的近连续记录的地震数据。 分割记录可以拼接成一个单一的近乎连续的记录，以产生来自单个采集线的地震数据的轨迹。 可以通过对多个时间样本中的每一个执行空间位移来校正地震数据的运动，来处理地震数据。

公开(公告)号：US20140269186A1

公开(公告)日：2014-09-18

申请号：US13803981

申请日：2013-03-14

申请人： Sandra Tegtmeier-Last ,  Gilles Hennenfent ,  Jeffrey Eaton Cole

发明人： Sandra Tegtmeier-Last ,  Gilles Hennenfent ,  Jeffrey Eaton Cole

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V2210/23 ,  G01V2210/24 ,  G01V2210/324 ,  G01V2210/3246 ,  G01V2210/40 ,  G01V2210/42

摘要： A system and method for isolating signal in seismic data representative of a subsurface region of interest including receiving a seismic dataset representative of seismic signal and seismic noise and a seismic data guide; transforming the seismic dataset and the seismic data guide into a domain wherein the seismic data have a sparse or compressible representation to create a first set and a second set of representative coefficients; comparing the first set of representative coefficients to the second set of representative coefficients to identify and select desirable members of the first set of representative coefficients that are within a defined threshold of the second set of representative coefficients to create an improved first set of representative coefficients; and performing an inverse transform of the improved first set of representative coefficients to generate a modified seismic dataset.

摘要翻译： 用于隔离表示地下相关地震的地震数据中的信号的系统和方法，包括接收代表地震信号和地震噪声的地震数据集和地震数据指南; 将地震数据集和地震数据指南转换成其中地震数据具有稀疏或可压缩表示以创建第一集合和第二组代表性系数的域; 将第一组代表性系数与第二组代表性系数进行比较，以识别并选择在第二组代表性系数的定义阈值内的第一组代表系数的期望成员，以创建改进的第一组代表性系数; 以及执行改进的第一组代表性系数的逆变换以产生经修改的地震数据集。

公开(公告)号：US20070242564A1

公开(公告)日：2007-10-18

申请号：US11733078

申请日：2007-04-09

申请人： Kattelmalvadi Devi

发明人： Kattelmalvadi Devi

IPC分类号： G01V1/00

CPC分类号： G01V1/30 ,  G01V1/32 ,  G01V2210/42

摘要： A method of processing seismic data, wherein a digital seismic trace is provided comprising at least one seismic loop. A selected discrete wavelet transform of the digital seismic trace is obtained as a function of scale sj and shifted sample time tk. From the discrete wavelet transform, a singularity spectrum is obtained for the at least one seismic loop, and a selected function is fitted to the singularity spectrum. Based on the fitted function, a reconstructed seismic trace may be calculated. The method may be embodied in the form of software code instructions in a computer program product.

摘要翻译： 一种处理地震数据的方法，其中提供包括至少一个地震回路的数字地震迹线。 获得数字地震迹线的选择的离散小波变换作为标度s＆lt; j＆gt;和移位采样时间t k k的函数。 从离散小波变换得到至少一个地震回路的奇异谱，并将选定的函数拟合到奇异谱。 基于拟合函数，可以计算重建的地震轨迹。 该方法可以以计算机程序产品中的软件代码指令的形式来体现。