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1. 发明授权

US10803534B2 Handling domain discontinuity with the help of grid optimization techniques 有权
公开(公告)号：US10803534B2
公开(公告)日：2020-10-13
申请号：US14868562
申请日：2015-09-29
申请人： Larisa V. Branets , Xiaohui Wu , Linfeng Bi
发明人： Larisa V. Branets , Xiaohui Wu , Linfeng Bi
IPC分类号： G06Q50/02 , G06Q10/06 , G01V99/00 , G06T17/20 , G06F30/20
摘要： Method for mapping a 3D grid or mesh from a faulted subsurface domain to a continuous design domain, wherein the grid may be used to represent a discrete model of a subsurface material property (such as permeability) to use, for example, in a reservoir simulator. The mapping is geometry-based, not physics-based. The mapping is determined by an iterative optimization procedure designed to penalize deformation of tessellated mesh cells (703) in the design domain compared to their geometric quality in the faulted domain (701), but subject to stitching constraints (702) appearing as a penalty term or Lagrange multiplier term in the optimization objective function to influence the final mesh to co-locate pairs of points identified on opposite sides of a fault as having been located together before the fault occurred.

2. 发明申请

US20160125555A1 Handling Domain Discontinuity With The Help of Grid Optimization Techniques 审中-公开
标题翻译：使用网格优化技术的帮助处理域不连续性
公开(公告)号：US20160125555A1
公开(公告)日：2016-05-05
申请号：US14868562
申请日：2015-09-29
申请人： Larisa V. Branets , Xiaohui Wu , Linfeng Bi
发明人： Larisa V. Branets , Xiaohui Wu , Linfeng Bi
IPC分类号： G06Q50/02 , G06Q10/06
摘要： Method for mapping a 3D grid or mesh from a faulted subsurface domain to a continuous design domain, wherein the grid may be used to represent a discrete model of a subsurface material property (such as permeability) to use, for example, in a reservoir simulator. The mapping is geometry-based, not physics-based. The mapping is determined by an iterative optimization procedure designed to penalize deformation of tessellated mesh cells (703) in the design domain compared to their geometric quality in the faulted domain (701), but subject to stitching constraints (702) appearing as a penalty term or Lagrange multiplier term in the optimization objective function to influence the final mesh to co-locate pairs of points identified on opposite sides of a fault as having been located together before the fault occurred.
摘要翻译：用于将3D网格或网格从故障的地下区域映射到连续设计域的方法，其中网格可以用于表示使用例如在储层模拟器中的地下材料属性（例如渗透性）的离散模型。映射是基于几何的，而不是基于物理的。映射由迭代优化过程确定，该迭代优化过程设计用于惩罚设计域中的镶嵌网格单元（703）的变形，与其在有缺陷域（701）中的几何质量相比，但是受拼接限制（702）作为惩罚项或拉格朗日乘数项，以影响最终网格以将故障相对侧上识别的点对在故障发生之前位于一起。

3. 发明申请

US20160124117A1 Managing Discontinuities in Geologic Models 审中-公开
标题翻译：管理地质模型的不连续性
公开(公告)号：US20160124117A1
公开(公告)日：2016-05-05
申请号：US14928527
申请日：2015-10-30
申请人： Hao Huang , Xiaohui Wu , Larisa V. Branets , Dar-Lon Chang , Xiang Ma , Gauthier D. Becker , Thomas C. Halsey
发明人： Hao Huang , Xiaohui Wu , Larisa V. Branets , Dar-Lon Chang , Xiang Ma , Gauthier D. Becker , Thomas C. Halsey
IPC分类号： G01V99/00 , G06F17/10
CPC分类号： G01V99/005 , G01V2210/66 , G06F17/10 , G06F17/5009 , G06T17/05
摘要： A method and system are described for generating a geologic model having material properties for a faulted subsurface region. The method and system involve parameterizing corresponding fault surfaces and solving an energy optimization equation and/or conservation law equation for the corresponding fault surfaces based on parameterized nodes on the fault surfaces to generate a displacement map. The displacement map is used to map a geologic model from the physical space to the design space, where it is populated with material properties. The resulting populated geologic model may be used for hydrocarbon operations associated with the subsurface region.
摘要翻译：描述了一种用于生成具有缺陷地下区域的材料属性的地质模型的方法和系统。该方法和系统包括参数化相应的故障曲面，并根据故障曲面上的参数化节点求解相应故障曲面的能量优化方程和/或守恒定律方程，以生成位移图。位移图用于将地质模型从物理空间映射到设计空间，其中填充有材料属性。所得到的人口稠密地质模型可用于与地下区域相关联的烃类作业。

4. 发明授权

US10107938B2 Managing discontinuities in geologic models 有权
公开(公告)号：US10107938B2
公开(公告)日：2018-10-23
申请号：US14928527
申请日：2015-10-30
申请人： Hao Huang , Xiaohui Wu , Larisa V. Branets , Dar-Lon Chang , Xiang Ma , Gauthier D. Becker , Thomas C. Halsey
发明人： Hao Huang , Xiaohui Wu , Larisa V. Branets , Dar-Lon Chang , Xiang Ma , Gauthier D. Becker , Thomas C. Halsey
IPC分类号： G06G7/48 , G01V99/00 , G06F17/10 , G06T17/05 , G06F17/50
摘要： A method and system are described for generating a geologic model having material properties for a faulted subsurface region. The method and system involve parameterizing corresponding fault surfaces and solving an energy optimization equation and/or conservation law equation for the corresponding fault surfaces based on parameterized nodes on the fault surfaces to generate a displacement map. The displacement map is used to map a geologic model from the physical space to the design space, where it is populated with material properties. The resulting populated geologic model may be used for hydrocarbon operations associated with the subsurface region.

5. 发明申请

US20120215513A1 Method and Apparatus For Reservoir Modeling and Simulation 审中-公开
标题翻译：水库建模与仿真方法与装置
公开(公告)号：US20120215513A1
公开(公告)日：2012-08-23
申请号：US13498256
申请日：2010-07-28
申请人： Larisa V. Branets , Elena Kartasheva , Igor V. Krasnogorov , Valeriy Kubyak , Xiaohui Wu
发明人： Larisa V. Branets , Elena Kartasheva , Igor V. Krasnogorov , Valeriy Kubyak , Xiaohui Wu
IPC分类号： G06G7/48
CPC分类号： G01V99/00 , G01V99/005
摘要： A method and apparatus for generating a simulation grid for a reservoir model based on a geological model comprising horizons, constraints and multiple geological grid cells. A pre-image is generated corresponding to the geological grid cells, the pre-image comprising a surface and the modeling constraints being mapped onto the surface. A constrained two-dimensional grid is generated on the pre-image, the two-dimensional grid comprising multiple grid cells. Simulation layer boundaries are selected from the geological model and the constrained two-dimensional grid is projected onto the simulation layer boundaries. Prismatic cells are then generated to form the three-dimensional simulation grid. The method of generating a grid as herein described may be incorporated in existing reservoir simulators to improve their accuracy.
摘要翻译：一种用于基于包括地平线，约束和多个地质网格单元的地质模型生成用于储层模型的模拟网格的方法和装置。生成对应于地质网格单元的预图像，所述预图像包括表面，并且所述建模约束被映射到所述表面上。在预图像上生成约束二维网格，二维网格包含多个网格单元格。从地质模型中选择模拟层边界，将受限二维网格投影到模拟层边界。然后生成棱柱形细胞以形成三维模拟网格。生成如本文所描述的网格的方法可并入现有的储层模拟器中，以提高它们的准确度。

6. 发明授权

US10061060B2 Method and apparatus for generating a three-dimensional simulation grid for a reservoir model 有权
公开(公告)号：US10061060B2
公开(公告)日：2018-08-28
申请号：US13498256
申请日：2010-07-28
申请人： Larisa V. Branets , Elena Kartasheva , Igor V. Krasnogorov , Valeriy Kubyak , Xiaohui Wu
发明人： Larisa V. Branets , Elena Kartasheva , Igor V. Krasnogorov , Valeriy Kubyak , Xiaohui Wu
IPC分类号： G06G7/50 , G01V99/00
CPC分类号： G01V99/00 , G01V99/005
摘要： A method and apparatus for generating a simulation grid for a reservoir model based on a geological model comprising horizons, constraints and multiple geological grid cells. A pre-image is generated corresponding to the geological grid cells, the pre-image comprising a surface and the modeling constraints being mapped onto the surface. A constrained two-dimensional grid is generated on the pre-image, the two-dimensional grid comprising multiple grid cells. Simulation layer boundaries are selected from the geological model and the constrained two-dimensional grid is projected onto the simulation layer boundaries. Prismatic cells are then generated to form the three-dimensional simulation grid. The method of generating a grid as herein described may be incorporated in existing reservoir simulators.

7. 发明申请

US20160035130A1 Volumetric Grid Generation in a Domain with Heterogeneous Material Properties 审中-公开
标题翻译：具有异质材料性质的域中的体积网格生成
公开(公告)号：US20160035130A1
公开(公告)日：2016-02-04
申请号：US14807748
申请日：2015-07-23
申请人： Larisa V. Branets , Valeriy Kubyak , Elena Kartasheva , Valeriy Shmyrov , Olga Kroshkina , Dmitry Kandybor , Xiao-Hui Wu
发明人： Larisa V. Branets , Valeriy Kubyak , Elena Kartasheva , Valeriy Shmyrov , Olga Kroshkina , Dmitry Kandybor , Xiao-Hui Wu
IPC分类号： G06T17/05 , G06T17/10
CPC分类号： G06T17/05 , G01V99/005 , G06T17/20
摘要： Method for generating a 3D grid, and for defining a material property model on the grid, to use, for example, in a reservoir simulator. A mapping is defined (61,71) to a design space in which the material property is described as a piecewise smooth implicit or explicit function in three dimensions. Grid geometry is constructed only in the physical space of the model (62-65, 73-76), and no grid is required in the design space. The material property, for example permeability, is sampled in the design space (66,77) to populate the cells in the grid constructed in the physical domain. Prismatic grid cells may be truncated based on faults and horizons (65), or maybe conformed to fault surfaces using a 3D parameterization of the model (76). Only forward mapping, i.e. from the physical domain to the design space, is required.
摘要翻译：用于生成3D网格并用于在网格上定义材料属性模型以用于例如在储层模拟器中的方法。对于设计空间定义映射（61,71），其中材料属性在三维中被描述为分段平滑隐式或显式功能。网格几何仅在模型的物理空间（62-65,73-76）中构建，并且在设计空间中不需要网格。在设计空间（66,77）中对材料特性（例如磁导率）进行采样，以填充在物理域中构造的网格中的单元格。棱镜网格单元可以基于故障和层位（65）截断，或者可以使用模型的三维参数化（76）来符合故障曲面。只需要转发映射，即从物理域到设计空间。

8. 发明授权

US07932904B2 Generation of constrained voronoi grid in a plane 有权
标题翻译：在飞机上生成约束的voronoi网格
公开(公告)号：US07932904B2
公开(公告)日：2011-04-26
申请号：US12596786
申请日：2008-04-02
申请人： Larisa V. Branets , Xiao-Hui Wu , Santosh K. Verma , Stephen L. Lyons
发明人： Larisa V. Branets , Xiao-Hui Wu , Santosh K. Verma , Stephen L. Lyons
IPC分类号： G06T17/20 , G06G7/58
CPC分类号： G06T17/20 , G06F17/5018 , G06F2217/06
摘要： A method for generating constrained Voronoi grids in a plane with internal features and boundaries is disclosed. The disclosed method generally includes approximation of internal features and boundaries with polylines based on plane geometry. Protected polygons or points are generated around the polylines, and Delaunay triangulation of protected points or protected polygon vertices is constructed. Delaunay triangulation that honors protected polygons or points is generated in the rest of the gridding domain. The constrained Voronoi grid is then generated from the Delaunay triangulation, which resolves all of the approximated features and boundaries with the edges of Voronoi cells. Constrained Voronoi grids may be generated with adaptive cell sizes based on specified density criterion.
摘要翻译：公开了一种用于在具有内部特征和边界的平面中产生约束的Voronoi网格的方法。所公开的方法通常包括基于平面几何的多边形的内部特征和边界的近似。在折线周围产生受保护的多边形或点，构建了保护点或受保护多边形顶点的Delaunay三角剖分。保护多边形或点的Delaunay三角测量在网格域的其余部分产生。然后从Delaunay三角测量法生成约束的Voronoi网格，该方法解决了Voronoi单元边缘的所有近似特征和边界。受约束的Voronoi网格可以根据指定的密度标准生成适应单元格尺寸。

9. 发明申请

US20110169838A1 Generation of Constrained Voronoi Grid In A Plane 有权
标题翻译：在平面上生成约束Voronoi网格
公开(公告)号：US20110169838A1
公开(公告)日：2011-07-14
申请号：US13049561
申请日：2011-03-16
申请人： Larisa V. Branets , Xiao-Hui Wu , Santosh K. Verma , Stephen L. Lyons
发明人： Larisa V. Branets , Xiao-Hui Wu , Santosh K. Verma , Stephen L. Lyons
IPC分类号： G06T11/20
CPC分类号： G06T17/20 , G06F17/5018 , G06F2217/06
摘要： A computer-implemented method for generating a constrained Delaunay triangulation for a planar domain with boundaries and internal features. The boundaries and internal features of the domain are approximated with polylines. Unconstrained Delaunay triangulation is constructed for the domain. The unconstrained Delaunay triangulation is modified to conform triangle sides to the polylines. The modified triangulation is corrected to make it a constrained Delaunay triangulation. At least one of the steps of the method is implemented using a computer.
摘要翻译：一种用于生成具有边界和内部特征的平面域的约束Delaunay三角剖分的计算机实现的方法。域的边界和内部特征用折线近似。为该领域构建了无约束Delaunay三角测量。不受约束的Delaunay三角测量被修改为使三角形侧面与折线相符。修正后的三角测量被修正，使其成为约束Delaunay三角测量。使用计算机实现该方法的至少一个步骤。

10. 发明授权

US10319143B2 Volumetric grid generation in a domain with heterogeneous material properties 有权
公开(公告)号：US10319143B2
公开(公告)日：2019-06-11
申请号：US14807748
申请日：2015-07-23
申请人： Larisa V. Branets , Valeriy Kubyak , Elena Kartasheva , Valeriy Shmyrov , Olga Kroshkina , Dmitry Kandybor , Xiao-Hui Wu
发明人： Larisa V. Branets , Valeriy Kubyak , Elena Kartasheva , Valeriy Shmyrov , Olga Kroshkina , Dmitry Kandybor , Xiao-Hui Wu
IPC分类号： G06T17/05 , G01V99/00 , G06T17/20
摘要： Method for generating a 3D grid, and for defining a material property model on the grid, to use, for example, in a reservoir simulator. A mapping is defined (61,71) to a design space in which the material property is described as a piecewise smooth implicit or explicit function in three dimensions. Grid geometry is constructed only in the physical space of the model (62-65, 73-76), and no grid is required in the design space. The material property, for example permeability, is sampled in the design space (66,77) to populate the cells in the grid constructed in the physical domain. Prismatic grid cells may be truncated based on faults and horizons (65), or maybe conformed to fault surfaces using a 3D parameterization of the model (76). Only forward mapping, i.e. from the physical domain to the design space, is required.

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