公开(公告)号：US10012745B2

公开(公告)日：2018-07-03

申请号：US13748121

申请日：2013-01-23

申请人： Jerome R. Krebs ,  Young Ho Cha ,  Sunwoong Lee ,  Pavel Dimitrov ,  Anoop A. Mullur ,  Nathan J. Downey ,  Partha S. Routh

发明人： Jerome R. Krebs ,  Young Ho Cha ,  Sunwoong Lee ,  Pavel Dimitrov ,  Anoop A. Mullur ,  Nathan J. Downey ,  Partha S. Routh

IPC分类号： G01V9/00 ,  G06F17/00 ,  G01V1/00 ,  G01V1/28

CPC分类号： G01V1/003 ,  G01V1/005 ,  G01V1/28 ,  G01V9/00 ,  G01V2210/66 ,  G06F17/00

摘要： Method for performing simultaneous encoded-source inversion of geophysical data to estimate parameters of a physical property model (41), especially adapted for surveys without fixed-receiver acquisition geometry, such as marine seismic surveys with moving source and receivers. The encoding functions (32) used on the sources to generate one or more simultaneous encoded-source gathers of data (35), as well as to simulate the same (34), are orthogonal or pseudo-orthogonal with respect to cross-correlation. In addition, receivers are also encoded, with the receiver encoding being designed to make a given receiver less sensitive to sources to which it was not listening during the survey (38). The encoding functions may be temporal bandpass filters differing one from another by central frequency, phase, or both. Efficiency of the method may be further improved by grouping several sources into a super-source, grouping the corresponding gathers into a super-gather, and then applying the above encoding strategy.

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.

公开(公告)号：US08694299B2

公开(公告)日：2014-04-08

申请号：US13045215

申请日：2011-03-10

申请人： Jerome R. Krebs ,  Sunwoong Lee ,  Young Ho Cha

发明人： Jerome R. Krebs ,  Sunwoong Lee ,  Young Ho Cha

IPC分类号： G06F7/60 ,  G06F17/10 ,  G01V1/00 ,  G06T11/00

CPC分类号： G06F17/5009 ,  G01V1/00 ,  G01V11/00 ,  G01V99/005 ,  G06T11/006

摘要： Method for reducing artifacts in a subsurface physical properties model (120) inferred by iterative inversion (140) of geophysical data (130), wherein the artifacts are associated with some approximation (110) made during the iterative inversion. In the method, some aspect of the approximation is changed (160) as the inversion is iterated such that the artifacts do not increase by coherent addition.

摘要翻译： 一种用于减少通过地球物理数据（130）的迭代反演（140）推断的地下物理属性模型（120）中的伪影的方法，其中所述伪影与在迭代反演期间进行的一些近似（110）相关联。 在该方法中，随着反演被重复，近似的某些方面被改变（160），使得伪像不会通过相干相加而增加。

公开(公告)号：US20130238246A1

公开(公告)日：2013-09-12

申请号：US13748121

申请日：2013-01-23

申请人： Jerome R. Krebs ,  Young Ho Cha ,  Sunwoong Lee ,  Pavel Dimitrov ,  Anoop A. Mullur ,  Nathan J. Downey ,  Partha S. Routh

发明人： Jerome R. Krebs ,  Young Ho Cha ,  Sunwoong Lee ,  Pavel Dimitrov ,  Anoop A. Mullur ,  Nathan J. Downey ,  Partha S. Routh

IPC分类号： G01V1/00 ,  G06F17/00 ,  G01V9/00

CPC分类号： G01V1/003 ,  G01V1/005 ,  G01V1/28 ,  G01V9/00 ,  G01V2210/66 ,  G06F17/00

摘要： Method for performing simultaneous encoded-source inversion of geophysical data to estimate parameters of a physical property model (41), especially adapted for surveys without fixed-receiver acquisition geometry, such as marine seismic surveys with moving source and receivers. The encoding functions (32) used on the sources to generate one or more simultaneous encoded-source gathers of data (35), as well as to simulate the same (34), are orthogonal or pseudo-orthogonal with respect to cross-correlation. In addition, receivers are also encoded, with the receiver encoding being designed to make a given receiver less sensitive to sources to which it was not listening during the survey (38). The encoding functions may be temporal bandpass filters differing one from another by central frequency, phase, or both. Efficiency of the method may be further improved by grouping several sources into a super-source, grouping the corresponding gathers into a super-gather, and then applying the above encoding strategy.

摘要翻译： 用于执行地球物理数据的同时编码源反演以估计物理性质模型（41）的参数的方法，特别适用于没有固定接收机采集几何的勘测，例如具有移动源和接收机的海洋地震勘测。 用于产生一个或多个同时编码的数据源集合（35）的源的编码功能（32）以及模拟相同的编码功能（34）在互相关方面是正交的或伪正交的。 另外，接收机也被编码，其中接收机编码被设计成使得给定的接收机在调查期间对其不倾听的源较不敏感（38）。 编码功能可以是通过中心频率，相位或两者彼此不同的时间带通滤波器。 可以通过将多个源分组成超级源，将相应的聚类分组成超级聚集，然后应用上述编码策略，可以进一步提高该方法的效率。

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）。

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）。

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

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

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）。

公开(公告)号：US6002642A

公开(公告)日：1999-12-14

申请号：US987562

申请日：1997-12-09

申请人： Jerome R. Krebs

发明人： Jerome R. Krebs

IPC分类号： G01V1/28 ,  G01V1/30 ,  G01V1/42 ,  G01V1/36

CPC分类号： G01V1/286 ,  G01V1/301 ,  G01V1/42 ,  G01V2210/161

摘要： A method of migrating seismic data using offset checkshot survey measurements. The offset checkshot survey measurements involve raypaths similar to the migration raypaths for the seismic data, and are used to determine direct arrival traveltimes to receivers in a borehole. Embodiments of the invention provide for direct use of the traveltimes in migration, or indirect use of the traveltimes in migration via construction of a migration velocity model. The velocity model embodiments further provide for either traveltime error correction via use of interpolated error functions or construction of migration error tables. The invention can be employed for time, depth or Kirchhoff migration, in either two or three dimension, and in either prestack or poststack applications. The invention may be used to migrate any type of seismic data, including compressional-wave, shear-wave, and converted-wave seismic data.

摘要翻译： 使用偏移检查测量测量方法迁移地震数据的方法。 偏移检查测量测量涉及与地震数据的迁移射线路径类似的射线路径，用于确定钻孔中接收器的直接到达旅行时间。 本发明的实施例提供了在移动中直接使用旅行时间，或者通过建立移动速度模型来间接使用旅行时间在移动中。 速度模型实施例还通过使用内插误差函数或迁移误差表的构造进一步提供旅行时错误校正。 本发明可以用于时间，深度或Kirchhoff迁移，两个或三个维度，以及在叠前或后堆叠应用中。 本发明可用于迁移任何类型的地震数据，包括压缩波，剪切波和转换波地震数据。

公开(公告)号：US5696735A

公开(公告)日：1997-12-09

申请号：US812819

申请日：1997-03-06

申请人： Jerome R. Krebs

发明人： Jerome R. Krebs

IPC分类号： G01V1/28 ,  G01V1/30 ,  G01V1/42 ,  G01V1/36

CPC分类号： G01V1/42 ,  G01V1/284 ,  G01V1/301 ,  G01V2210/161

摘要： A method of migrating seismic data using offset checkshot survey measurements. The offset checkshot survey measurements involve raypaths similar to the migration raypaths for the seismic data, and are used to determine direct arrival traveltimes to receivers in a borehole. Embodiments of the invention provide for direct use of the traveltimes in migration, or indirect use of the traveltimes in migration via construction of a migration velocity model. The velocity model embodiments further provide for either traveltime error correction via use of interpolated error functions or construction of migration error tables. The invention can be employed for time, depth or Kirchhoff migration, in either two or three dimension, and in either prestack or poststack applications.

摘要翻译： 使用偏移检查测量测量方法迁移地震数据的方法。 偏移检查测量测量涉及与地震数据的迁移射线路径类似的射线路径，用于确定钻孔中接收器的直接到达旅行时间。 本发明的实施例提供了在移动中直接使用旅行时间，或者通过建立移动速度模型来间接使用旅行时间在移动中。 速度模型实施例还通过使用内插误差函数或迁移误差表的构造进一步提供旅行时错误校正。 本发明可以用于时间，深度或Kirchhoff迁移，两个或三个维度，以及在叠前或后堆叠应用中。