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公开(公告)号：US09625593B2
公开(公告)日：2017-04-18
申请号：US13614932
申请日：2012-09-13
申请人： Ramesh Neelamani , Partha S. Routh , Jerome R. Krebs , Anatoly Baumstein , Thomas A. Dickens , Warren S. Ross , Gopalkrishna Palacharla
发明人： Ramesh Neelamani , Partha S. Routh , Jerome R. Krebs , Anatoly Baumstein , Thomas A. Dickens , Warren S. Ross , Gopalkrishna Palacharla
IPC分类号： G01V1/28
CPC分类号： G01V1/28 , G01V2210/32 , G01V2210/40 , G01V2210/51
摘要： The invention includes a method for reducing noise in migration of seismic data, particularly advantageous for imaging by simultaneous encoded source reverse-time migration (SS-RTM). One example embodiment includes the steps of obtaining a plurality of initial subsurface images; decomposing each of the initial subsurface images into components; identifying a set of components comprising one of (i) components having at least one substantially similar characteristic across the plurality of initial subsurface images, and (ii) components having substantially dissimilar characteristics across the plurality of initial subsurface images; and generating an enhanced subsurface image using the identified set of components. For SS-RTM, each of the initial subsurface images is generated by migrating several sources simultaneously using a unique random set of encoding functions. Another embodiment of the invention uses SS-RTM for velocity model building.
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22.发明授权公开(公告)号：US08509028B2
公开(公告)日：2013-08-13
申请号：US13533616
申请日：2012-06-26
IPC分类号： G01V1/00
CPC分类号： G01V1/37 , G01V1/005 , G01V2210/127 , G01V2210/32
摘要： The invention discloses a way to recover separated seismograms with reduced interference noise by processing vibroseis data recorded (or computer simulated) with multiple vibrators shaking simultaneously or nearly simultaneously (200). A preliminary estimate of the separated seismograms is used to obtain improved seismograms (201). The preliminary estimate is convolved with the vibrator signature and then used to update the seismogram. Primary criteria for performing the update include fitting the field data and satisfying typical criteria of noise-free seismograms (202). Alternative ways to update are disclosed, including signal extraction, modeled noise extraction, constrained optimization based separation, and penalized least-squares based separation. The method is particularly suited for removing noise caused by separating the combined record into separate records for each vibrator, and is advantageous where the number of sweeps is fewer than the number of vibrators (200).
摘要翻译： 本发明公开了一种通过利用多个振动器同时或几乎同时振动（200）处理记录（或计算机模拟）的震动数据来恢复具有降低的干扰噪声的分离的地震图的方法。 使用分离地震图的初步估计来获得改进的地震图（201）。 初步估计与振动器签名一起卷积，然后用于更新地震图。 执行更新的主要标准包括拟合现场数据并满足无噪声地震图的典型标准（202）。 公开了替代的更新方式，包括信号提取，建模噪声提取，基于约束优化的分离以及基于最小二乘法的惩罚分离。 该方法特别适用于消除由组合记录分离为每个振动器的独立记录而引起的噪声，并且在扫描次数少于振动器数目（200）的情况下是有利的。
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公开(公告)号：US08428925B2
公开(公告)日：2013-04-23
申请号：US13345314
申请日：2012-01-06
申请人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charlie Jing , David Hinkley , Thomas A. Dickens , Christine E. Krohn , Peter Traynin
发明人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charlie Jing , David Hinkley , Thomas A. Dickens , Christine E. Krohn , Peter Traynin
IPC分类号： G06G7/48
CPC分类号： G06F17/5009 , G01V1/28 , G01V2210/67
摘要： Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using for each gather a different encoding signature selected from a set (2) of non-equivalent encoding signatures. Then, the encoded gathers are summed (4) by summing all traces corresponding to the same receiver from each gather, resulting in a simultaneous encoded gather. (Alternatively, the geophysical data are acquired from simultaneously encoded sources.) The simulation steps needed for inversion are then calculated using a particular assumed velocity (or other physical property) model (5) and simultaneously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model (6) that may be further updated (7) by additional iterations.
摘要翻译： 用于在反演过程的仿真步骤中通过使用同时编码的源来减少执行地球物理反演所需的时间的方法。 通过编码（3）一组源集合（1）来准备地球物理勘测数据，使用每组收集从非等效编码签名集合（2）中选出的不同编码签名。 然后，通过将来自每个聚集的相同接收器的所有跟踪相加，将编码的聚集相加（4），导致同时编码的聚集。 （或者，从同时编码的源获取地球物理数据。）然后使用特定的假定速度（或其他物理属性）模型（5）计算反演所需的模拟步骤，并使用与之相同的编码方案同时激活编码的源 测量数据。 结果是可以通过附加迭代进一步更新（7）的更新的物理属性模型（6）。
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公开(公告)号：US08352190B2
公开(公告)日：2013-01-08
申请号：US12684607
申请日：2010-01-08
IPC分类号： G01V3/12
摘要： An exemplary embodiment of the present invention provides a method for interpolating seismic data. The method includes collecting seismic data of two or more types over a field (401), determining an approximation to one of the types of the seismic data (402), and performing a wave-field transformation on the approximation to form a transformed approximation (405), wherein the transformed approximation corresponds to another of the collected types of seismic data. The method may also include setting the transformed approximation to match the measured seismic data of the corresponding types at matching locations (408), performing a wave-field transformation on the transformed approximation to form an output approximation (412), and using the output approximation to obtain a data representation of a geological layer (416).
摘要翻译： 本发明的示例性实施例提供了一种用于内插地震数据的方法。 该方法包括：通过场（401）收集两种或多种类型的地震数据，确定近似于地震数据类型之一（402），以及对近似进行波场变换以形成变换近似（ 405），其中变换的近似对应于所收集的地震数据的另一种。 该方法还可以包括设置变换后的近似以匹配匹配位置处的相应类型的测量的地震数据（408），对经变换的近似执行波场变换以形成输出近似（412），并且使用输出近似 以获得地质层的数据表示（416）。
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公开(公告)号：US20120109612A1
公开(公告)日：2012-05-03
申请号：US13345314
申请日：2012-01-06
申请人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charlie Jing , David Hinkley , Thomas A. Dickens , Christine E. Krohn , Peter Traynin
发明人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charlie Jing , David Hinkley , Thomas A. Dickens , Christine E. Krohn , Peter Traynin
IPC分类号： G06G7/48
CPC分类号： G06F17/5009 , G01V1/28 , G01V2210/67
摘要： Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using for each gather a different encoding signature selected from a set (2) of non-equivalent encoding signatures. Then, the encoded gathers are summed (4) by summing all traces corresponding to the same receiver from each gather, resulting in a simultaneous encoded gather. (Alternatively, the geophysical data are acquired from simultaneously encoded sources.) The simulation steps needed for inversion are then calculated using a particular assumed velocity (or other physical property) model (5) and simultaneously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model (6) that may be further updated (7) by additional iterations.
摘要翻译： 用于在反演过程的仿真步骤中通过使用同时编码的源来减少执行地球物理反演所需的时间的方法。 通过编码（3）一组源集合（1）来准备地球物理勘测数据，使用每组收集从非等效编码签名集合（2）中选出的不同编码签名。 然后，通过将来自每个聚集的相同接收器的所有跟踪相加，将编码的聚集相加（4），导致同时编码的聚集。 （或者，从同时编码的源获得地球物理数据。）然后使用特定的假定速度（或其他物理属性）模型（5）计算反演所需的模拟步骤，并使用与之相同的编码方案同时激活编码的源 测量数据。 结果是可以通过附加迭代进一步更新（7）的更新的物理属性模型（6）。
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公开(公告)号：US20110134721A1
公开(公告)日：2011-06-09
申请号：US13028844
申请日：2011-02-16
申请人： Max Deffenbaugh , Ramesh Neelamani
发明人： Max Deffenbaugh , Ramesh Neelamani
CPC分类号： G01V1/28 , G01V2210/20
摘要： A method is disclosed for combining seismic data sets. This method has application in merging data sets of different vintages, merging data sets collected using different acquisition technologies, and merging data sets acquired using different types of sensors, for example merging hydrophone and geophone measurements in ocean bottom seismic data. In one embodiment, a desired data trace is to be determined from a set of measured data traces, and the following steps are applied: (a) model filters are constructed which express the deterministic relationship between the desired data trace and each available measured trace that depends on the desired data trace; (b) the noise properties associated with each measured data trace are determined; (c) a sufficient statistic for the desired data trace is formed by application of an appropriate filter to each measured trace and summing the filter outputs; (d) the sufficient statistic is further processed by a single-input single-output estimator to construct an estimate of the desired data trace from the sufficient statistic.
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公开(公告)号：US20100018718A1
公开(公告)日：2010-01-28
申请号：US12441685
申请日：2007-09-11
申请人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charlie Jing , David Hinkley , Thomas A. Dickens , Christine E. Krohn , Peter Traynin
发明人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charlie Jing , David Hinkley , Thomas A. Dickens , Christine E. Krohn , Peter Traynin
CPC分类号： G06F17/5009 , G01V1/28 , G01V2210/67
摘要： Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using for each gather a different encoding signature selected from a set (2) of non-equivalent encoding signatures. Then, the encoded gathers are summed (4) by summing all traces corresponding to the same receiver from each gather, resulting in a simultaneous encoded gather (Alternatively, the geophysical data are acquired from simultaneously encoded sources.) The simulation steps needed for inversion are then calculated using a particular assumed velocity (or other physical property) model (5) and simultaneously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model (6) that may be further updated (7) by additional iterations.
摘要翻译： 用于在反演过程的仿真步骤中通过使用同时编码的源来减少执行地球物理反演所需的时间的方法。 通过编码（3）一组源集合（1）来准备地球物理勘测数据，使用每组收集从非等效编码签名集合（2）中选出的不同编码签名。 然后，通过对来自每个聚集的相同接收器的所有跟踪进行求和，将编码的聚集相加（4），导致同时编码的聚集（或者，从同时编码的源获取地球物理数据）。反演所需的模拟步骤是 然后使用特定的假定速度（或其他物理属性）模型（5）计算，并使用与测量数据相同的编码方案同时激活编码的源。 结果是可以通过附加迭代进一步更新（7）的更新的物理属性模型（6）。
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28.发明授权公开(公告)号：US07536056B2
公开(公告)日：2009-05-19
申请号：US11787836
申请日：2007-04-17
CPC分类号： G06T3/40 , G06T7/11 , G06T2207/10016 , G06T2207/20021 , G06T2207/20064 , G06T2207/20132 , H04N19/10 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/44 , H04N19/48 , H04N19/63
摘要： A method and apparatus is described for segmenting an image, for adaptively scaling an image, and for automatically scaling and cropping an image based on codestream headers data. In one embodiment, a file that can provide a header that contains multi-scale entropy distribution information on blocks of an image is received. For each block, the block is assigned to a scale from a set of scales that maximizes a cost function. The cost function is a product of a total likelihood and a prior. The total likelihood is a product of likelihoods of the blocks. The image is segmented by grouping together blocks that have been assigned equivalent scales. In one embodiment, the file represents an image in JPEG 2000 format.
摘要翻译： 描述了用于分割图像，自适应地缩放图像以及基于码流头部数据自动缩放和裁剪图像的方法和装置。 在一个实施例中，可以接收可以提供包含图像块上的多尺度熵分布信息的报头的文件。 对于每个块，块被分配给从一组成本函数最大化的一组比例尺。 成本函数是一个总可能性和先前的乘积。 总可能性是块的可能性的乘积。 通过将分配给等效尺度的块分组在一起来对图像进行分段。 在一个实施例中，文件表示JPEG 2000格式的图像。
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公开(公告)号：US08538702B2
公开(公告)日：2013-09-17
申请号：US12602413
申请日：2008-06-02
IPC分类号： G01V1/28
CPC分类号： G01V1/30 , G01V2210/48 , G01V2210/63
摘要： Method for identifying geologic features, such as hydrocarbon indicators, from geophysical data, such as seismic data, by taking a curvelet transform of the data. After the curvelet representation of the data is computed (350), selected geophysical data attributes and their interdependencies are extracted (355), from which geological features may be identified (360), either from attribute data volumes that are created or directly from the curvelet representation.
摘要翻译： 通过对数据进行曲线变换，从地球物理数据（如地震数据）中识别地质特征，如碳氢化合物指标的方法。 在计算数据的曲线图表示（350）之后，提取所选择的地球物理数据属性及其相互依赖关系（355），从中可以识别地质特征（360），从创建的属性数据卷或直接从曲线图 表示。
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公开(公告)号：US20130191090A1
公开(公告)日：2013-07-25
申请号：US13791252
申请日：2013-03-08
申请人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charles Jing , David L. Hinkley , Thomas A. Dickens
发明人： Jerome R. Krebs , John E. Anderson , Ramesh Neelamani , Charles Jing , David L. Hinkley , Thomas A. Dickens
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , G01V1/28 , G01V2210/67
摘要： Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using for each gather a different encoding signature selected from a set (2) of non-equivalent encoding signatures. Then, the encoded gathers are summed (4) by summing all traces corresponding to the same receiver from each gather, resulting in a simultaneous encoded gather. (Alternatively, the geophysical data are acquired from simultaneously encoded sources.) The simulation steps needed for inversion are then calculated using a particular assumed velocity (or other physical property) model (5) and simultaneously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model (6) that may be further updated (7) by additional iterations.
摘要翻译： 用于在反演过程的仿真步骤中通过使用同时编码的源来减少执行地球物理反演所需的时间的方法。 通过编码（3）一组源集合（1）来准备地球物理勘测数据，使用每组收集从非等效编码签名集合（2）中选出的不同编码签名。 然后，通过将来自每个聚集的相同接收器的所有跟踪相加，将编码的聚集相加（4），导致同时编码的聚集。 （或者，从同时编码的源获取地球物理数据。）然后使用特定的假定速度（或其他物理属性）模型（5）计算反演所需的模拟步骤，并使用与之相同的编码方案同时激活编码的源 测量数据。 结果是可以通过附加迭代进一步更新（7）的更新的物理属性模型（6）。
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