Seismic Data Processing
    1.
    发明申请
    Seismic Data Processing 有权
    地震数据处理

    公开(公告)号:US20130003500A1

    公开(公告)日:2013-01-03

    申请号:US13614932

    申请日:2012-09-13

    IPC分类号: G01V1/28

    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。

    Seismic Data Processing
    3.
    发明申请
    Seismic Data Processing 审中-公开
    地震数据处理

    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。

    Iterative Inversion of Data from Simultaneous Geophysical Sources
    4.
    发明申请
    Iterative Inversion of Data from Simultaneous Geophysical Sources 审中-公开
    同时地球物理资料数据迭代反演

    公开(公告)号:US20130191090A1

    公开(公告)日:2013-07-25

    申请号:US13791252

    申请日:2013-03-08

    IPC分类号: G06F17/50

    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)。

    Iterative inversion of data from simultaneous geophysical sources
    5.
    发明授权
    Iterative inversion of data from simultaneous geophysical sources 有权
    同时地球物理资料数据的迭代反演

    公开(公告)号:US08121823B2

    公开(公告)日:2012-02-21

    申请号:US12441685

    申请日:2007-09-11

    IPC分类号: G06G7/48

    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)。

    Iterative inversion of data from simultaneous geophysical sources
    6.
    发明授权
    Iterative inversion of data from simultaneous geophysical sources 有权
    同时地球物理资料数据的迭代反演

    公开(公告)号:US08428925B2

    公开(公告)日:2013-04-23

    申请号:US13345314

    申请日:2012-01-06

    IPC分类号: G06G7/48

    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)。

    Iterative Inversion of Data From Simultaneous Geophysical Sources
    7.
    发明申请
    Iterative Inversion of Data From Simultaneous Geophysical Sources 有权
    同时地球物理资料的迭代反演数据

    公开(公告)号:US20120109612A1

    公开(公告)日:2012-05-03

    申请号:US13345314

    申请日:2012-01-06

    IPC分类号: G06G7/48

    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)。

    ITERATIVE INVERSION OF DATA FROM SIMULTANEOUS GEOPHYSICAL SOURCES
    8.
    发明申请
    ITERATIVE INVERSION OF DATA FROM SIMULTANEOUS GEOPHYSICAL SOURCES 有权
    数据同源地球物理资料的迭代反演

    公开(公告)号:US20100018718A1

    公开(公告)日:2010-01-28

    申请号:US12441685

    申请日:2007-09-11

    IPC分类号: E21B43/00 G01V1/28 G06F19/00

    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)。