公开(公告)号：WO2014158389A3

公开(公告)日：2014-12-31

申请号：PCT/US2014015835

申请日：2014-02-11

Applicant: CHEVRON USA INC

Inventor： TEGTMEIER-LAST SANDRA ,  HENNENFENT GILLES ,  COLE JEFFREY EATON

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V2210/23 ,  G01V2210/24 ,  G01V2210/324 ,  G01V2210/3246 ,  G01V2210/40 ,  G01V2210/42

Abstract: 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.

Abstract translation: 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：WO2014158753A2

公开(公告)日：2014-10-02

申请号：PCT/US2014019863

申请日：2014-03-03

Applicant: CHEVRON USA INC

Inventor： TEGTMEIER-LAST SANDRA ,  HENNENFENT GILLES

IPC: G01V1/30

CPC classification number: G01V1/32 ,  G01V1/308 ,  G01V2210/48 ,  G01V2210/612 ,  G01V2210/6122

Abstract: A system and method for determining a 4D difference from 4D seismic data including receiving a baseline seismic dataset and a monitor seismic dataset; identifying a 4D signal present in the monitor seismic dataset to create a 4D monitor dataset and a signal in the baseline seismic dataset which matches the monitor seismic dataset to create a baseline matching signal dataset; differencing the baseline matching signal dataset and the baseline seismic dataset to create a 4D baseline dataset; and differencing the 4D baseline dataset and the 4D monitor dataset to create a 4D difference dataset. In an embodiment, a multi-scale, multi-directional transform is used to identify the 4D signal present in the monitor seismic dataset and the signal in the baseline seismic dataset which matches the monitor seismic dataset.

Abstract translation: 一种用于从4D地震数据确定4D差异的系统和方法，包括接收基线地震数据集和监测地震数据集; 识别存在于监测地震数据集中的4D信号，以创建与监测地震数据集匹配的基线地震数据集中的4D监测数据集和信号，以创建基线匹配信号数据集; 区分基线匹配信号数据集和基线地震数据集，以创建4D基线数据集; 并区分4D基准数据集和4D监测数据集，以创建4D差异数据集。 在一个实施例中，使用多尺度多方向变换来识别存在于监测地震数据集中的4D信号和与监测地震数据集匹配的基线地震数据集中的信号。

公开(公告)号：WO2014158387A2

公开(公告)日：2014-10-02

申请号：PCT/US2014015795

申请日：2014-02-11

Applicant: CHEVRON USA INC

Inventor： TEGTMEIER-LAST SANDRA ,  KUSTOWSKI BOGDAN LUKASZ ,  CLARK DOUGLAS WILLIAM ,  HENNENFENT GILLES ,  MARTIN HARRY

CPC classification number: G01V1/364 ,  G01V2210/23 ,  G01V2210/24 ,  G01V2210/3246 ,  G01V2210/40 ,  G01V2210/42

Abstract: 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.

Abstract translation: 一种用于衰减表示感兴趣的地下区域的地震数据中的噪声的系统和方法，包括接收表示地震信号或地震噪声的地震数据集和表示地震信号和噪声的地震数据集，将它们转换成域，它们具有稀疏或 比较所述系数集合以识别表示所述信号和噪声数据集的所述系数集合中的期望系数，选择所述期望系数以产生改进的系数集合，以及逆变换所述改进的系数集合以产生经修改的地震数据集 。 修改的地震数据集可以是噪声衰减的地震数据或可以是从原始数据中减去以产生噪声衰减的数据的噪声模型。

公开(公告)号：WO2014051854A3

公开(公告)日：2014-06-19

申请号：PCT/US2013052712

申请日：2013-07-30

Applicant: CHEVRON USA INC

Inventor： HENNENFENT GILLES ,  BOLES KARL ,  DANSEREAU YVES

IPC: G01V1/36

CPC classification number: G01V1/362 ,  G01V1/325 ,  G01V2210/322 ,  G01V2210/324

Abstract: A system and method for processing a prestack seismic dataset with at least one smoothly varying (redundant) axis including transposing the prestack seismic dataset, slicing the prestack seismic dataset into depth or time slices with at least one redundant axis, processing the slices, and transposing the slices to create a processed seismic dataset. The redundant axis may be representative of offset, angle, azimuth, or time between time-lapse surveys. The processing may include filtering the slices to attenuate coherent or incoherent noise.

Abstract translation: 一种用于处理具有至少一个平滑变化（冗余）轴的叠前地震数据集的系统和方法，包括转置叠前地震数据集，将叠前地震数据集切成具有至少一个冗余轴的深度或时间片，处理切片和转置 切片以创建经处理的地震数据集。 冗余轴可以代表延时测量之间的偏移，角度，方位角或时间。 该处理可以包括对切片进行滤波以衰减相干或非相干噪声。

公开(公告)号：WO2014011280A3

公开(公告)日：2014-03-06

申请号：PCT/US2013036200

申请日：2013-04-11

Applicant: CHEVRON USA INC

Inventor： KUSTOWSKI BODGAN ,  HENNENFENT GILLES ,  COLE JEFFREY

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V1/28 ,  G01V2210/32

Abstract: A system and method for attenuating noise in seismic data representative of a subsurface region of interest including receiving the seismic data; transforming the seismic data into a domain wherein the seismic data have a sparse or compressible representation to create transformed seismic data; dividing the domain into windows wherein the windows represent known spatio-temporal locations in the seismic data; determining statistics of the transformed seismic data in each window; determining a filter for each window based on the statistics of the transformed data; applying the filter for each window to the transformed seismic data in each window to create filtered seismic data; and performing an inverse transform of the filtered seismic data to create noise-attenuated seismic data.

Abstract translation: 一种系统和方法，用于衰减代表感兴趣地下地区的地震数据中的噪声，包括接收地震数据; 将地震数据转换成其中地震数据具有稀疏或可压缩表示以产生变换的地震数据的域; 将域划分为窗口，其中窗口表示地震数据中已知的时空位置; 确定每个窗口中变换的地震数据的统计; 基于经变换的数据的统计确定每个窗口的滤波器; 将每个窗口的滤波器应用于每个窗口中的变换的地震数据，以产生滤波的地震数据; 并执行经滤波的地震数据的逆变换以产生噪声衰减的地震数据。

公开(公告)号：WO2011133289A3

公开(公告)日：2011-12-22

申请号：PCT/US2011030041

申请日：2011-03-25

Applicant: CHEVRON USA INC ,  HENNENFENT GILLES

Inventor： HENNENFENT GILLES

IPC: G06F19/00 ,  G01V9/00 ,  G06T17/05

CPC classification number: G01V1/32 ,  G01V1/362 ,  G01V11/00 ,  G01V2210/322 ,  G01V2210/40

Abstract: Geophysical data representing at least first and second overlapping geophysical spaces may be aggregated. A first set of geophysical data representing the first geophysical space and a second set of geophysical data representing the second geophysical space may be obtained. The second set of geophysical data may be separate and discrete from the first set of geophysical data. The first set of geophysical data may be transformed from a first parametric domain to a third parametric domain, while the second set of geophysical data may be transformed from a second parametric domain to the third parametric domain. The first set of geophysical data may be fused with the second set of geophysical data in the third parametric domain to create a fused set of geophysical data. The fused set of geophysical data may be transformed from the third parametric domain to a fourth parametric domain.

Abstract translation: 可以聚合表示至少第一和第二重叠地球物理空间的地球物理数据。 可以获得表示第一地球物理空间的第一组地球物理数据和表示第二地球物理空间的第二组地球物理数据。 第二组地球物理数据可以与第一组地球物理数据分离和离散。 第一组地球物理数据可以从第一参数域变换到第三参数域，而第二组地球物理数据可以从第二参数域变换到第三参数域。 第一组地球物理数据可以与第三参数域中的第二组地球物理数据融合，以创建一组融合的地球物理数据。 融合的地球物理数据集可以从第三参数域变换到第四参数域。