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1. 发明申请

WO2009140530A3 MULTI-SCALE METHOD FOR MULTI-PHASE FLOW IN POROUS MEDIA 审中-公开
标题翻译：多孔介质中多相流的多尺度方法
公开(公告)号：WO2009140530A3
公开(公告)日：2010-06-24
申请号：PCT/US2009044002
申请日：2009-05-14
申请人： CHEVRON USA INC , SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , LOGINED BV , PRAD RESERACH AND DEV LTD , LEE SEONG H , ZHOU HUI , TCHELEPI HAMDI A
发明人： LEE SEONG H , ZHOU HUI , TCHELEPI HAMDI A
IPC分类号： G06F17/50
CPC分类号： E21B43/00 , E21B47/10 , G06F17/5018 , G06F2217/16
摘要： A multi-scale method to efficiently determine the fine-scale saturation arising from multi-phase flow in a subsurface reservoir is disclosed. The method includes providing a simulation model that includes a fine-scale grid defining a plurality of fine-scale cells, and a coarse-scale grid defining a plurality of coarse-scale cells that are aggregates of the fine-scale cells. The coarse-scale cells are partitioned into saturation regions responsive to velocity and/or saturation changes from the saturation front. A fine-scale saturation is determined for each region and the saturation regions are assembled to obtain a fine-scale saturation distribution. A visual display can be output responsive to the fine-scale saturation distribution.
摘要翻译：公开了一种多尺度方法，用于有效地确定由地下储层中的多相流产生的细小饱和饱和度。该方法包括提供包括限定多个精细尺度单元格的精细尺度网格的模拟模型，以及限定作为精细尺度单元的聚集的多个粗尺度单元的粗尺度网格。粗尺度单元被分成饱和区域，其响应于来自饱和度前沿的速度和/或饱和度变化。确定每个区域的精细饱和度，并组装饱和区域以获得精细尺度饱和度分布。可以根据精细尺度的饱和度分布输出视觉显示。

2. 发明申请

WO2010027976A2 INDIRECT-ERROR-BASED, DYNAMIC UPSCALING OF MULTI-PHASE FLOW IN POROUS MEDIA 审中-公开
标题翻译：基于间接误差的多孔介质中多相流的动态高压化
公开(公告)号：WO2010027976A2
公开(公告)日：2010-03-11
申请号：PCT/US2009055612
申请日：2009-09-01
申请人： CHEVRON USA INC , SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , LOGINED BV , PRAD RESERACH AND DEV LTD , LEE SEONG H , ZHOU HUI , TCHELEPI HAMDI A
发明人： LEE SEONG H , ZHOU HUI , TCHELEPI HAMDI A
IPC分类号： G06F19/00 , G06F11/00
CPC分类号： G06F17/5009 , G01V99/005 , G01V2210/663 , G06F2217/16
摘要： Computer-implemented systems and methods are provided for an upscaling approach based on dynamic simulation of a given model. A system and method can be configured such that the accuracy of the upscaled model is continuously monitored via indirect error measures. If the indirect error measures are bigger than a specified tolerance, the upscaled model is dynamically updated with approximate fine-scale information that is reconstructed by a multi-scale finite volume method. Upscaling of multi-phase flow can include flow information in the underlying fine-scale. Adaptive prolongation and restriction operators are applied for flow and transport equations in constructing an approximate fine-scale solution.
摘要翻译：计算机实现的系统和方法被提供用于基于给定模型的动态模拟的放大方法。系统和方法可以被配置为使得通过间接误差测量来持续地监测放大模型的准确性。如果间接误差测量值大于指定公差，则会使用通过多尺度有限体积方法重建的近似精细尺度信息动态更新放大模型。多相流量的增加可以包括基础细尺度的流量信息。自适应延长和限制算子应用于构建近似精细解的流动和传输方程。

3. 发明申请

WO2007149766A3 RESERVOIR SIMULATION USING A MULTI-SCALE FINITE VOLUME INCLUDING BLACK OIL MODELING 审中-公开
标题翻译：使用多尺度有限体积进行储层模拟，包括黑油模拟
公开(公告)号：WO2007149766A3
公开(公告)日：2009-04-02
申请号：PCT/US2007071227
申请日：2007-06-14
申请人： CHEVRON USA INC , SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , LOGINED BV , PRAD RES & DEV LTD , ETH ZUERICH , LEE SEONG , WOLFSTEINER CHRISTIAN , TCHELEPI HAMDI A , JENNY PATRICK , LUNATI IVAN FABRIZIO
发明人： LEE SEONG , WOLFSTEINER CHRISTIAN , TCHELEPI HAMDI A , JENNY PATRICK , LUNATI IVAN FABRIZIO
IPC分类号： G06G7/48
CPC分类号： E21B49/00 , G01V1/301 , G06F17/5018 , G06F2217/16
摘要： A multi- scale finite- volume (MSFV) method simulates nonlinear immiscible three- phase compressible flow in the presence of gravity and capillary forces. Consistent with the MSFV framework, flow and transport are treated separately and differently using a fully implicit sequential algorithm. The pressure field is solved using an operator splitting algorithm. The general solution of the pressur is decomposed into an elliptic part, a buoyancy/ capillary force dominant part, an an inhomogeneous part with source/sink and accumulation. A MSFV method is used to compute the basis functions of the elliptic component, capturing long range interactions in the pressure field. Direct construction of the velocity field and solution of the transport problem on the primal coarse grid provides flexibility in accommodating physical mechanisms. A MSFV method (300) computes an approximate pressure field, including a solution of a course-scale pressure equation (320); constructs fine-scale fluxes (330); and computes a phase -transport equation (340)
摘要翻译：多尺度有限体积（MSFV）方法在重力和毛细力存在的情况下模拟非相互不混溶的三相可压缩流动。与MSFV框架一致，使用完全隐式的顺序算法分别和不同地处理流和传输。使用算子分割算法求解压力场。压力的一般解决方案分解为椭圆形部分，浮力/毛细管力主导部分，源/汇和积聚的不均匀部分。 MSFV方法用于计算椭圆分量的基函数，捕获压力场中的长距离相互作用。速度场的直接构造和运输问题在原始粗网格上的解决方案提供了适应物理机制的灵活性。 MSFV方法（300）计算近似压力场，包括课程尺度压力方程（320）的解; 构建细小的通量（330）; 并计算相位传输方程（340）

4. 发明申请

WO2006058171A2 MULTI-SCALE FINITE-VOLUME METHOD FOR USE IN SUBSURFACE FLOW SIMULATION 审中-公开
标题翻译：用于表面流动模拟的多尺度有限体积方法
公开(公告)号：WO2006058171A2
公开(公告)日：2006-06-01
申请号：PCT/US2005042632
申请日：2005-11-21
申请人： CHEVRON USA INC , SCHLUMBERGER TECHNOLOGY CORP , SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER CA LTD , SCHLUMBERGER HOLDINGS , ETH ZUERICH , JENNY PATRICK , LEE SEONG , TCHELEPI HAMDI A
发明人： JENNY PATRICK , LEE SEONG , TCHELEPI HAMDI A
IPC分类号： G06G7/48 , G01V11/00 , G06F17/50 , G06G20060101
CPC分类号： E21B49/00 , E21B43/00 , G01V11/00 , G06F17/5018 , G06F2217/16
摘要： A multi-scale finite-volume (MSFV) method to solve elliptic problems with a plurality of spatial scales arising from single or multi-phase flows in porous media is provided. The method efficiently captures the effects of small scales on a coarse grid, is conservative, and treats tensor permeabilities correctly. The underlying idea is to construct transmissibilities that capture the local properties of a differential operator. This leads to a multi-point discretization scheme for a finite-volume solution algorithm. Transmissibilities for the MSFV method are preferably constructed only once as a preprocessing step and can be computed locally.
摘要翻译：提供了一种多尺度有限体积（MSFV）方法，用于解决多孔介质中单相或多相流产生的多个空间尺度的椭圆问题。该方法有效地捕获了小尺度对粗网格的影响，是保守的，并且正确地对待张量渗透率。基本思想是构建捕获差分算子的局部属性的透射率。这导致了用于有限体积解算法的多点离散化方案。 MSFV方法的转移优选仅作为预处理步骤构建一次，并且可以在本地计算。

5. 发明申请

WO2007027222A2 APPARATUS, METHOD AND SYSTEM FOR IMPROVED RESERVOIR SIMULATION USING A MULTIPLICATIVE OVERLAPPING SCHWARZ PRECONDITIONING FOR ADAPTIVE IMPLICIT LINEAR SYSTEMS 审中-公开
标题翻译：装置，方法和系统，用于改进的储层模拟，使用多重叠加SCHWARZ预处理自适应隐式线性系统
公开(公告)号：WO2007027222A2
公开(公告)日：2007-03-08
申请号：PCT/US2006016021
申请日：2006-04-26
申请人： SCHLUMBERGER TECHNOLOGY CORP , CHEVRON USA INC , WALLIS JOHN , TCHELEPI HAMDI A , CAO HUI
发明人： WALLIS JOHN , TCHELEPI HAMDI A , CAO HUI
CPC分类号： G06F17/5018 , G06F2217/16
摘要： A method, system and apparatus are disclosed for conducting a reservoir simulation, using a reservoir model of a gridded region of interest. The grid of the region of interest includes one or more types of cells, the type of cell being distinguished by the number of unknown variables representing properties of the cells. The cells share a common variable as an unknown variable. The method includes the steps of identifying different cell types for the grid; constructing an overall matrix for the reservoir model based on the different cell types; at least partially decoupling the common variable from the other unknown variables in the matrix by using a reduction process to yield a reduced matrix; mathematically breaking up the variables in the reduced matrix into k subsets by cell types; applying an overlapping multiplicative Schwartz procedure to the reduced matrix to obtain a preconditioner and using the preconditioner to solve for the unknown variables.
摘要翻译：公开了一种使用感兴趣的网格区域的储层模型进行油藏模拟的方法，系统和装置。感兴趣区域的网格包括一个或多个类型的单元格，通过表示单元格属性的未知变量的数量区分单元格的类型。单元格共享一个公共变量作为未知变量。该方法包括识别网格的不同小区类型的步骤; 基于不同的细胞类型构建储层模型的总体矩阵; 通过使用缩减过程来至少部分地将公共变量与矩阵中的其他未知变量解耦，以产生简化的矩阵; 通过细胞类型数学地将简化矩阵中的变量分解成k个子集; 将重叠乘法Schwartz过程应用于简化矩阵以获得预处理器，并使用预处理器来解决未知变量。

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