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.

公开(公告)号：US10036829B2

公开(公告)日：2018-07-31

申请号：US14423659

申请日：2013-08-23

申请人： Kaveh Ghayour ,  Linfeng Bi ,  Xiaohui Wu

发明人： Kaveh Ghayour ,  Linfeng Bi ,  Xiaohui Wu

IPC分类号： G01V99/00 ,  G06F17/10 ,  G01V1/28

CPC分类号： G01V99/005 ,  G01V1/282 ,  G01V2210/66 ,  G06F17/10

摘要： Method for transforming a discontinuous, faulted subsurface reservoir into a continuous, fault-free space where a complete geological model based on selected geological concepts can be built and updated efficiently. Faults are removed in reverse chronological order (62) to generate a pseudo-physical continuous layered model, which is populated with information according to the selected geological concept (68). The fault removal is posed as an optimal control problem where unknown rigid body transformations and relative displacements on fault surfaces are found such that deformation of the bounding horizons and within the volume near the fault surface are minimized (63). A boundary-element-method discretization in an infinite domain is used, with boundary data imposed only on fault surfaces. The data populated model may then be mapped back to the original faulted domain such that a one-to-one mapping between continuous and faulted spaces may be found to a desired tolerance (72).

公开(公告)号：US09187984B2

公开(公告)日：2015-11-17

申请号：US13805650

申请日：2011-05-19

申请人： Adam Usadi ,  Dachang Li ,  Rossen Parashkevov ,  Sergey A. Terekhov ,  Xiaohui Wu ,  Yahan Yang

发明人： Adam Usadi ,  Dachang Li ,  Rossen Parashkevov ,  Sergey A. Terekhov ,  Xiaohui Wu ,  Yahan Yang

IPC分类号： G06F7/60 ,  G06G7/48 ,  E21B41/00 ,  G06F17/50 ,  E21B43/00 ,  G06N3/04 ,  G01V99/00

CPC分类号： E21B41/0092 ,  E21B41/00 ,  E21B43/00 ,  G01V99/005 ,  G06F17/5009 ,  G06F17/5018 ,  G06F2217/16 ,  G06N3/0427

摘要： There is provided a method for modeling a hydrocarbon reservoir that includes generating a reservoir model that has a plurality of coarse grid cells. A plurality of fine grid models is generated, wherein each fine grid model corresponds to one of the plurality of coarse grid cells that surround a flux interface. The method also includes simulating the plurality of fine grid models using a training simulation to obtain a set of training parameters, including a potential at each coarse grid cell surrounding the flux interface and a flux across the flux interface. A machine learning algorithm is used to generate a constitutive relationship that provides a solution to fluid flow through the flux interface. The method also includes simulating the hydrocarbon reservoir using the constitutive relationship and generating a data representation of a physical hydrocarbon reservoir in a non-transitory, computer-readable medium based on the results of the simulation.

摘要翻译： 提供了一种用于对烃储层进行建模的方法，其包括产生具有多个粗网格单元的储层模型。 产生多个精细网格模型，其中每个细网格模型对应于围绕磁通界面的多个粗网格单元之一。 该方法还包括使用训练模拟来模拟多个精细网格模型，以获得一组训练参数，包括在通量界面周围的每个粗网格单元处的电位和穿过磁通界面的通量。 机器学习算法用于产生本构关系，为通过流体界面的流体流提供解决方案。 该方法还包括使用本构关系模拟烃储层，并且基于模拟结果在非暂时的计算机可读介质中生成物理烃储层的数据表示。

公开(公告)号：US08566372B2

公开(公告)日：2013-10-22

申请号：US13258431

申请日：2010-07-21

申请人： Haijian He ,  Xiaohui Wu ,  Wei Fan

发明人： Haijian He ,  Xiaohui Wu ,  Wei Fan

IPC分类号： G06F17/30

CPC分类号： G06F9/445 ,  G06F8/54

摘要： The disclosure provides a method for dynamically loading a relocatable file, comprising: analyzing the relocatable file; searching for a relocation section according to the information obtained through the analysis; obtaining a relocation target address after the relocation section is found and calculating an address to be relocated and a skipping distance; determining whether the skipping distance exceeds a range of a short skipping, and if the skipping distance does not exceed the range of the short skipping, then writing the relocation target address into the address to be relocated to perform relocation loading; if the skipping distance exceeds the range of the short skipping, then adding a veneer code segment and making the skipping whose distance exceeds the range of the short skipping indirectly skip to the relocation target address to perform relocation loading. Accordingly, the disclosure provides a device for dynamically loading a relocatable file, comprising: an analyzing module, a calculating module, a searching module, a determining module, and a relocation dynamic loading module. With the solution, dynamically loading a relocatable file can be realized when the calling distance of a function exceeds the range of the short skipping.

摘要翻译： 本公开提供了一种用于动态加载可重定位文件的方法，包括：分析可重定位文件; 根据通过分析获得的信息搜索搬迁部分; 在重新定位部分被找到并获得重定位目标地址，并计算要重定位的地址和跳过距离; 确定跳跃距离是否超过短跳过的范围，如果跳过距离不超过跳过的距离，则将重定位目标地址写入要重新定位的地址以执行重定位加载; 如果跳过距离超过短跳过的范围，则添加单板代码段，并且跳过距离超过跳过范围的跳过间接跳转到重定位目标地址以执行重定位加载。 因此，本公开提供了一种用于动态加载可重定位文件的装置，包括：分析模块，计算模块，搜索模块，确定模块和重定位动态加载模块。 使用该解决方案，当功能的呼叫距离超过短跳频的范围时，可以实现动态加载可重定位文件。

公开(公告)号：US20130231907A1

公开(公告)日：2013-09-05

申请号：US13825758

申请日：2011-08-12

申请人： Yahan Yang ,  Linfeng Bi ,  Weidong Guo ,  Rossen Parashkevov ,  Xiaohui Wu

发明人： Yahan Yang ,  Linfeng Bi ,  Weidong Guo ,  Rossen Parashkevov ,  Xiaohui Wu

IPC分类号： G06F17/50

CPC分类号： G06F17/5018 ,  G01V99/005 ,  G06F2217/16

摘要： A variable discretization method for general multiphase flow simulation in a producing hydrocarbon reservoir. For subsurface regions for which a regular or Voronoi computational mesh is suitable, a finite difference/finite volume method (“FDM”) is used to discretize numerical solution of the differential equations governing fluid flow (101). For subsurface regions with more complex geometries, a finite element method (“FEM”) is used. The invention combines FDM and FEM in a single computational framework (102). Mathematical coupling at interfaces between different discretization regions is accomplished by decomposing individual phase velocity into an averaged component and a correction term. The averaged velocity component may be determined from pressure and averaged capillary pressure and other properties based on the discretization method employed, while the velocity correction term may be computed using a multipoint flux approximation type method, which may be reduced to two-point flux approximation for simple grid and permeability fields.

摘要翻译： 一种用于生产油气藏的一般多相流模拟的可变离散化方法。 对于常规或Voronoi计算网格适合的地下区域，使用有限差分/有限体积法（“FDM”）来离散控制流体流动的微分方程（101）的数值解。 对于具有更复杂几何的地下区域，使用有限元法（“FEM”）。 本发明将FDM和FEM组合在一个单一的计算框架中（102）。 通过将各个相速度分解成平均分量和校正项来实现不同离散区域之间的界面处的数学耦合。 平均速度分量可以基于所采用的离散化方法从压力和平均毛细管压力和其他性质确定，而速度校正项可以使用多点通量近似方法来计算，该方法可以减少到两点通量近似 简单网格和渗透性领域。

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。

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.

公开(公告)号：US10087721B2

公开(公告)日：2018-10-02

申请号：US13805647

申请日：2011-05-19

申请人： Adam Usadi ,  Dachang Li ,  Rossen Parashkevov ,  Sergey A. Terekhov ,  Xiaohui Wu ,  Yahan Yang

发明人： Adam Usadi ,  Dachang Li ,  Rossen Parashkevov ,  Sergey A. Terekhov ,  Xiaohui Wu ,  Yahan Yang

IPC分类号： G06G7/48 ,  E21B43/00 ,  G01V1/28 ,  G06F17/50 ,  G06N99/00 ,  G01V99/00 ,  G06N3/04

摘要： There is provided a method for modeling a hydrocarbon reservoir that includes generating a reservoir model that has a plurality of sub regions. A solution surrogate is obtained for a sub region by searching a database of existing solution surrogates to obtain an approximate solution surrogate based on a comparison of physical, geometrical, or numerical parameters of the sub region with physical, geometrical, or numerical parameters associated with the existing surrogate solutions in the database. If an approximate solution surrogate does not exist in the database, the sub region is simulated using a training simulation to obtain a set of training parameters comprising state variables and boundary conditions of the sub region. A machine learning algorithm is used to obtain a new solution surrogate based on the set of training parameters. The hydrocarbon reservoir can be simulated using the solution surrogate obtained for the at least one sub region.

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。

公开(公告)号：US08825461B2

公开(公告)日：2014-09-02

申请号：US13131799

申请日：2009-11-16

申请人： Tao Sun ,  Dachang Li ,  John Van Wagoner ,  Xiaohui Wu

发明人： Tao Sun ,  Dachang Li ,  John Van Wagoner ,  Xiaohui Wu

IPC分类号： G06G7/50 ,  G01V99/00

CPC分类号： G01V99/00

摘要： A method of generating a model of a turbidity current in a fluid is disclosed. A first flow layer in the turbidity current is defined. The method successively defines at least one more flow layer in the turbidity current. Each successive flow layer includes the previously defined flow layer. A set of depth-averaged flow variables for each flow layer is defined. A model is developed that describes the turbidity current. The model uses fluid flow equations and the set of depth-averaged flow variables for each flow layer to predict fluid flow in each flow layer. The model is then output.

摘要翻译： 公开了一种在流体中产生浊度电流模型的方法。 定义浊度电流中的第一流层。 该方法连续地限定浊度电流中的至少一个更多的流动层。 每个连续的流动层包括先前定义的流动层。 定义每个流层的一组深度平均流量变量。 开发了一种描述浊度电流的模型。 该模型使用流体流动方程和每个流动层的深度平均流量变量的集合来预测每个流动层中的流体流动。 然后输出模型。