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公开(公告)号：US10310117B2
公开(公告)日：2019-06-04
申请号：US15407279
申请日：2017-01-17
Applicant: Jia Yan , John E. Anderson , Rongrong Lu , Carey M. Marcinkovich
Inventor： Jia Yan , John E. Anderson , Rongrong Lu , Carey M. Marcinkovich
Abstract: A method for generating seismic attribute gathers, the method including: computing, with a computer, seismic images with a field dataset; generating, with a computer, synthetic data corresponding to the seismic images; computing, with a computer, an attribute volume by applying an expectation method to the synthetic data; mapping, with a computer, the attribute volume to the seismic images; and generating, with a computer, seismic attribute gathers by stacking the seismic images mapped to the attribute volume.
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公开(公告)号：US20200003920A1
公开(公告)日：2020-01-02
申请号：US16420774
申请日：2019-05-23
Applicant: Yaxun Tang , Rongrong Lu , Yaofeng He
Inventor： Yaxun Tang , Rongrong Lu , Yaofeng He
Abstract: Methods for updating a physical properties model of a subsurface region that combine advantages of FWI and tomography into a joint inversion scheme are provided. One method comprises obtaining measured seismic data; generating simulated seismic data using an initial model; computing at least one of an FWI gradient and a tomography gradient; minimizing a joint objective function E, wherein the objective function E is based on a combination of the FWI gradient and the tomography gradient or preconditioning of the FWI gradient or the tomography gradient; generating a final model based on the minimized joint objective function E; and using the final model to generate a subsurface image. The joint objective function E may be a function of one or both a FWI objective function CFWI and a tomography objective function CTomo. The joint objective function E may be defined as a weighted sum of CFWI and CTomo.
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公开(公告)号：US08126651B2
公开(公告)日：2012-02-28
申请号：US11922815
申请日：2006-06-06
Applicant: Rebecca L. Saltzer , Christopher J. Finn , Rongrong Lu
Inventor： Rebecca L. Saltzer , Christopher J. Finn , Rongrong Lu
CPC classification number: G01V1/306
Abstract: Method for obtaining rock parameters such as porosity and vshale directly from inversion of seismic data corresponding to a single trace location. This method is distinguished from existing methods that obtain elastic properties from inversion of seismic data, then relate the elastic parameters to rock lithology parameters such as porosity or vshale because it is accomplished in one step, can incorporate anisotropy and does not require multiple trace locations for stability. The data are separated into partial stacks, and a wavelet is specified for each stack. A set of linearized equations are constructed relating seismic reflectivity to changes in elastic parameters, and another set of linearized equations is constructed relating the changes in elastic parameters to the lithologic parameters. The linearized reflectivity equations are combined with the linearized rock physics equations, convolved with the specified wavelets, and equated to the seismic data. The resulting matrix equations are then inverted and a solution is obtained for all offsets simultaneously.
Abstract translation: 直接从对应于单一轨迹位置的地震数据反演获得岩石参数如孔隙度和垂直叶片的方法。 该方法与从地震数据反演获得弹性性质的现有方法不同，然后将弹性参数与岩石岩性参数（如孔隙度或vshale）相关联，因为它在一个步骤中完成，可以包含各向异性，并且不需要多个迹线位置 稳定性。 数据被分成部分堆栈，并为每个堆栈指定一个小波。 构造了一组线性方程，将地震反射率与弹性参数的变化相关联，另外建立了一组线性化方程，将弹性参数的变化与岩性参数相关联。 线性化反射率方程与线性化岩石物理方程组合，与指定的小波卷积，并等同于地震数据。 然后将所得到的矩阵方程反相，同时获得所有偏移的解。
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Patent Agency Ranking
公开(公告)号：US11041971B2
公开(公告)日：2021-06-22
申请号：US16420774
申请日：2019-05-23
Applicant: Yaxun Tang , Rongrong Lu , Yaofeng He
Inventor： Yaxun Tang , Rongrong Lu , Yaofeng He
Abstract: Methods for updating a physical properties model of a subsurface region that combine advantages of FWI and tomography into a joint inversion scheme are provided. One method comprises obtaining measured seismic data; generating simulated seismic data using an initial model; computing at least one of an FWI gradient and a tomography gradient; minimizing a joint objective function E, wherein the objective function E is based on a combination of the FWI gradient and the tomography gradient or preconditioning of the FWI gradient or the tomography gradient; generating a final model based on the minimized joint objective function E; and using the final model to generate a subsurface image. The joint objective function E may be a function of one or both a FWI objective function CFWI and a tomography objective function CTomo. The joint objective function E may be defined as a weighted sum of CFWI and CTomo.
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公开(公告)号：US10739481B2
公开(公告)日：2020-08-11
申请号：US15450854
申请日：2017-03-06
Applicant: Jaewoo Park , Carey M. Marcinkovich , Rongrong Lu
Inventor： Jaewoo Park , Carey M. Marcinkovich , Rongrong Lu
Abstract: A method, including: generating updated velocity models, each corresponding to one of a plurality of initial velocity models of intersecting 2D seismic survey lines, wherein updates to the plurality of initial velocity models are computed by imposing a seismic-tie regularization constraint on an inversion process that inverts for the updates to the plurality of initial velocity models, and the seismic-tie regularization constraint causes the updated velocity models to have consistent values for depth of seismic reflectivity at intersecting spatial locations.
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公开(公告)号：US20170285194A1
公开(公告)日：2017-10-05
申请号：US15450854
申请日：2017-03-06
Applicant: Jaewoo Park , Carey M. Marcinkovich , Rongrong Lu
Inventor： Jaewoo Park , Carey M. Marcinkovich , Rongrong Lu
CPC classification number: G01V1/303 , G01V1/282 , G01V2210/512 , G01V2210/614 , G01V2210/6222 , G01V2210/679
Abstract: A method, including: generating updated velocity models, each corresponding to one of a plurality of initial velocity models of intersecting 2D seismic survey lines, wherein updates to the plurality of initial velocity models are computed by imposing a seismic-tie regularization constraint on an inversion process that inverts for the updates to the plurality of initial velocity models, and the seismic-tie regularization constraint causes the updated velocity models to have consistent values for depth of seismic reflectivity at intersecting spatial locations.
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7.发明申请公开(公告)号：US20170219729A1
公开(公告)日：2017-08-03
申请号：US15407279
申请日：2017-01-17
Applicant: Jia Yan , John E. Anderson , Rongrong Lu , Carey M. Marcinkovich
Inventor： Jia Yan , John E. Anderson , Rongrong Lu , Carey M. Marcinkovich
CPC classification number: G01V1/307 , E21B49/00 , G01V1/282 , G01V1/303 , G01V1/362 , G01V2210/512 , G01V2210/614 , G01V2210/632 , G01V2210/679
Abstract: A method for generating seismic attribute gathers, the method including: computing, with a computer, seismic images with a field dataset; generating, with a computer, synthetic data corresponding to the seismic images; computing, with a computer, an attribute volume by applying an expectation method to the synthetic data; mapping, with a computer, the attribute volume to the seismic images; and generating, with a computer, seismic attribute gathers by stacking the seismic images mapped to the attribute volume.
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公开(公告)号：US20090271118A1
公开(公告)日：2009-10-29
申请号：US11922815
申请日：2006-06-06
Applicant: Rebecca L. Saltzer , Christopher J. Finn , Rongrong Lu
Inventor： Rebecca L. Saltzer , Christopher J. Finn , Rongrong Lu
IPC: G01V1/28
CPC classification number: G01V1/306
Abstract: Method for obtaining rock parameters such as porosity and vshale directly from inversion of seismic data corresponding to a single trace location. This method is distinguished from existing methods that obtain elastic properties from inversion of seismic data, then relate the elastic parameters to rock lithology parameters such as porosity or vshale because it is accomplished in one step, can incorporate anisotropy and does not require multiple trace locations for stability. The data are separated into partial stacks, and a wavelet is specified for each stack. A set of linearized equations are constructed relating seismic reflectivity to changes in elastic parameters, and another set of linearized equations is constructed relating the changes in elastic parameters to the lithologic parameters. The linearized reflectivity equations are combined with the linearized rock physics equations, convolved with the specified wavelets, and equated to the seismic data. The resulting matrix equations are then inverted and a solution is obtained for all offsets simultaneously.
Abstract translation: 直接从对应于单一轨迹位置的地震数据反演获得岩石参数如孔隙度和垂直叶片的方法。 该方法与从地震数据反演获得弹性性质的现有方法不同，然后将弹性参数与岩石岩性参数（如孔隙度或vshale）相关联，因为它在一个步骤中完成，可以包含各向异性，并且不需要多个迹线位置 稳定性。 数据被分成部分堆栈，并为每个堆栈指定一个小波。 构造了一组线性方程，将地震反射率与弹性参数的变化相关联，另外建立了一组线性化方程，将弹性参数的变化与岩性参数相关联。 线性化反射率方程与线性化岩石物理方程组合，与指定的小波卷积，并等同于地震数据。 然后将所得到的矩阵方程反相，同时获得所有偏移的解。
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