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公开(公告)号：US20100097888A1
公开(公告)日：2010-04-22
申请号：US12531271
申请日：2008-03-19
申请人： Ramesh Neelamani , Christine Krohn
发明人： Ramesh Neelamani , Christine Krohn
IPC分类号： G01V1/36
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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2.发明授权公开(公告)号：US08248886B2
公开(公告)日：2012-08-21
申请号：US12531271
申请日：2008-03-19
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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3.发明授权Simultaneous source encoding and source separation as a practical solution for full wavefield inversion 有权同源源编码和源分离作为全波场反演的实际解决方案公开(公告)号：US08775143B2
公开(公告)日：2014-07-08
申请号：US13229252
申请日：2011-09-09
申请人： Partha S. Routh , Sunwoong Lee , Ramesh Neelamani , Jerome R. Krebs , Spyridon Lazaratos , Carey Marcinkovich
发明人： Partha S. Routh , Sunwoong Lee , Ramesh Neelamani , Jerome R. Krebs , Spyridon Lazaratos , Carey Marcinkovich
IPC分类号： G06G7/48
CPC分类号： G01V1/28 , G01V2210/67
摘要： Method for simultaneous full-wavefield inversion of gathers of source (or receiver) encoded geophysical data to determine a physical properties model (118) for a subsurface region, especially suitable for surveys where fixed receiver geometry conditions were not satisfied in the data acquisition. Simultaneous source separation (104) is performed to lessen any effect of the measured geophysical data's not satisfying the fixed-receiver assumption. A data processing step (106) coming after the simultaneous source separation acts to conform model-simulated data (105) to the measured geophysical data (108) for source and receiver combinations that are missing in the measured geophysical data.
摘要翻译： 用于同源全波场反演源（或接收机）编码的地球物理数据的方法，以确定地下区域的物理性质模型（118），特别适合于在数据采集中不满足固定接收机几何条件的调查。 执行同源分离（104）以减少测量的地球物理数据不满足固定接收机假设的任何影响。 在同时源分离之后进行的数据处理步骤（106）用于将模拟模拟数据（105）符合测量的地球物理数据（108），用于测量的地球物理数据中缺少的源和接收机组合。
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4.发明授权Method to adapt a template dataset to a target dataset by using curvelet representations 有权通过使用曲线图表示将模板数据集适配到目标数据集的方法公开(公告)号：US08280695B2
公开(公告)日：2012-10-02
申请号：US12675083
申请日：2008-08-28
CPC分类号： G01V1/36 , G01V2210/32 , G01V2210/56
摘要： Method for adapting a template to a target data set. The template may be used to remove noise from, or interpret noise in, the target data set. The target data set is transformed (550) using a selected complex-valued, directional, multi-resolution transform (‘CDMT’) satisfying the Hubert transform property at least approximately. An initial template is selected, and it is transformed (551) using the same CDMT. Then the transformed template is adapted (560) to the transformed target data by adjusting the template's expansion coefficients within allowed ranges of adjustment so as to better match the expansion coefficients of the target data set. Multiple templates may be simultaneously adapted to better fit the noise or other component of the data that it may be desired to represent by template.
摘要翻译： 将模板适配到目标数据集的方法。 该模板可用于从目标数据集中去除噪声或解释噪声。 使用至少近似地满足Hubert变换属性的选定的复值定向多分辨率变换（CDMT）来变换（550）目标数据集。 选择初始模板，并使用相同的CDMT对其进行转换（551）。 然后，通过在允许的调整范围内调整模板的扩展系数，将变换的模板适配（560）到变换的目标数据，以便更好地匹配目标数据集的扩展系数。 多个模板可以同时适合于更好地拟合可能希望通过模板表示的数据的噪声或其他组件。
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公开(公告)号：US20100186950A1
公开(公告)日：2010-07-29
申请号：US12602413
申请日：2008-06-02
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，如碳氢化合物指示器的方法。 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：US07428338B2
公开(公告)日：2008-09-23
申请号：US10044420
申请日：2002-01-10
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.
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公开(公告)号：US20060190181A1
公开(公告)日：2006-08-24
申请号：US11340011
申请日：2006-01-24
申请人： Max Deffenbaugh , Ramesh Neelamani
发明人： Max Deffenbaugh , Ramesh Neelamani
IPC分类号： G01V1/28
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.
摘要翻译： 公开了一种用于组合地震数据集的方法。 该方法适用于合并不同年份的数据集，合并使用不同采集技术收集的数据集，以及合并使用不同类型传感器获取的数据集，例如在海底地震数据中合并水听器和地震检波器测量。 在一个实施例中，要从一组测量数据迹线确定期望的数据轨迹，并且应用以下步骤：（a）构造模型过滤器，其表示所需数据轨迹和每个可用测量轨迹之间的确定性关系， 取决于所需的数据跟踪; （b）确定与每个测量数据迹线相关联的噪声特性; （c）通过对每个测量轨迹应用适当的滤波器并对滤波器输出求和来形成所需数据轨迹的足够的统计量; （d）足够的统计量由单输入单输出估计器进一步处理，从足够的统计量构建所需数据跟踪的估计。
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公开(公告)号：US20130003500A1
公开(公告)日：2013-01-03
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.
摘要翻译： 本发明包括一种降低地震数据迁移噪声的方法，特别有利于通过同时编码的源反向时间迁移（SS-RTM）进行成像。 一个示例实施例包括获得多个初始地下图像的步骤; 将每个初始地下图像分解成分量; 识别包括（i）在所述多个初始地下图像中具有至少一个基本上相似的特征的分量之一的组件集合;以及（ii）在所述多个初始地下图像之间具有基本不相似特征的分量; 以及使用所识别的组件集合来生成增强的地下图像。 对于SS-RTM，每个初始地下图像都是通过使用唯一随机的编码函数集同时迁移多个源来生成的。 本发明的另一个实施例使用SS-RTM进行速度模型建立。
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公开(公告)号：US20120275267A1
公开(公告)日：2012-11-01
申请号：US13430380
申请日：2012-03-26
IPC分类号： G01V1/28
CPC分类号： G01V1/28 , G01V2210/51
摘要： Provided is a method for processing seismic data. One exemplary 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. Each of the initial subsurface images is generated using a unique random set of encoding functions.
摘要翻译： 提供了一种处理地震数据的方法。 一个示例性实施例包括获得多个初始地下图像的步骤; 将每个初始地下图像分解成分量; 识别包括（i）在所述多个初始地下图像中具有至少一个基本上相似的特征的分量之一的组件集合;以及（ii）在所述多个初始地下图像之间具有基本不相似特征的分量; 以及使用所识别的组件集合来生成增强的地下图像。 使用唯一随机的编码函数集来生成每个初始地下图像。
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公开(公告)号：US20120269034A1
公开(公告)日：2012-10-25
申请号：US13533616
申请日：2012-06-26
IPC分类号： G01V1/28
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将每个振动器分离成不同记录而产生的噪声，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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