PROBABALISTIC MODELING AND ANALYSIS OF HYDROCARBON-CONTAINING RESERVOIRS
    1.
    发明申请
    PROBABALISTIC MODELING AND ANALYSIS OF HYDROCARBON-CONTAINING RESERVOIRS 审中-公开
    含油气储层的概念建模与分析

    公开(公告)号:US20160281497A1

    公开(公告)日:2016-09-29

    申请号:US14670040

    申请日:2015-03-26

    CPC classification number: E21B49/00 E21B47/00

    Abstract: Methods and systems are provided for modeling an aspect of a hydrocarbon-containing reservoir by constructing a first factor graph having variables and factors that describe the aspect of the hydrocarbon-containing reservoir. The first factor graph is converted to a tree-structured graph that does not have any cycle or loops. The tree-structured graph is converted to a second factor graph that does not contain any cycles or loops, wherein the second factor graph has variables and factors that describe the aspect of the hydrocarbon-containing reservoir. A query on the second factor graph is carried out involving message passing operations that perform probabilistic inference on the second factor graph with regard to the aspect of the hydrocarbon-containing reservoir that is modeled by the second factor graph.

    Abstract translation: 提供了用于通过构造具有描述含烃储层的方面的变量和因素的第一因子图来模拟含烃储层的方面的方法和系统。 第一个因子图被转换为没有任何循环或循环的树结构图。 树结构图转换为不包含任何循环或循环的第二因子图,其中第二因子图具有描述含烃储层的方面的变量和因子。 对第二因子图进行查询,涉及消息传递操作,该操作对由第二因子图建模的含烃储层的方面对第二因子图执行概率推断。

    System and method for performing oilfield simulation operations
    2.
    发明授权
    System and method for performing oilfield simulation operations 有权
    油田模拟作业的系统和方法

    公开(公告)号:US08352227B2

    公开(公告)日:2013-01-08

    申请号:US11929921

    申请日:2007-10-30

    CPC classification number: E21B47/00 E21B49/00

    Abstract: A method for performing operations of an oilfield is described. The method involves selectively coupling oilfield simulators according to a predefined configuration, each oilfield simulator modeling at least a portion of the oilfield, a first oilfield simulator receives an oilfield control parameter as an input, identifying an uncertainty parameter associated with probable values each corresponding to a weighted probability, a second oilfield simulator receives the uncertainty parameter as an input, modeling the operations of the oilfield to generate an estimated performance by selectively communicating between the oilfield simulators, the operations of the oilfield are modeled with a predetermined value of the oilfield control parameter and at least one of the probable values of the uncertainty parameter; and identifying an optimal value of the oilfield control parameter based on the estimated performance.

    Abstract translation: 描述了一种用于执行油田操作的方法。 该方法包括根据预定义的配置选择性地耦合油田模拟器,每个油田模拟器建模油田的至少一部分,第一油田模拟器接收油田控制参数作为输入,识别与可能值相关联的不确定性参数, 加权概率,第二油田模拟器接收不确定度参数作为输入,通过油田模拟器之间的选择性通信来建模油田的运行以产生估计的性能,油田的操作用油田控制参数的预定值 以及不确定性参数的可能值中的至少一个; 以及基于所估计的性能来确定所述油田控制参数的最优值。

    Method for optimal gridding in reservoir simulation
    3.
    发明授权
    Method for optimal gridding in reservoir simulation 有权
    油藏模拟中优化网格化的方法

    公开(公告)号:US07716029B2

    公开(公告)日:2010-05-11

    申请号:US11656840

    申请日:2007-01-23

    CPC classification number: G01V11/00

    Abstract: A method is disclosed for performing optimal gridding in reservoir simulation, the method comprising: establishing an optimal coarse grid proxy that can replace all or parts of a fine grid with a coarse grid while preserving an accuracy of a predefined simulation model output, the step of establishing an optimal coarse grid proxy including finding, by using an optimizer, a best fit of a coarse grid output to the output of a training set.

    Abstract translation: 公开了一种用于在储层模拟中执行最佳网格化的方法,所述方法包括:建立最优粗网格代理,其可以用粗栅格替代精细网格的全部或部分,同时保持预定模拟模型输出的精度,步骤 建立最优粗网格代理,包括通过使用优化器找到粗网格输出到训练集的输出的最佳拟合。

    Tool for measuring inclination and rotation
    4.
    发明授权
    Tool for measuring inclination and rotation 失效
    用于测量倾斜和旋转的工具

    公开(公告)号:US4779353A

    公开(公告)日:1988-10-25

    申请号:US30949

    申请日:1987-03-26

    CPC classification number: G01C9/06 G01C9/20

    Abstract: A tool is provided for measuring the angles of inclination and rotation of the tool itself, especially for use in a borehole. The tool preferably comprises an electrically nonconductive cylindrical chamber containing a conductive fluid and a nonconductive fluid which together fill the chamber; at least two wires oriented parallel to the longitudinal axis of the chamber and located about the circumference of the chamber at other than 180 degrees apart from each other, such that the surface interface between the conductive and nonconductive fluids may be defined by a point along each of the two wires along with a third point on the surface; and electrical means attached to the wires for sensing an electrical characteristic of the wires corresponding to the points along the wires defined by the fluid interface; and means for using the sensed electrical characteristics of the wires, a knowledge of the chamber radius, and a knowledge of the third point, and determining therefrom an index of inclination of said chamber. Preferably, the means for using the sensed electrical characteristics to determine an index of inclination also uses the sensed electrical characteristics of the wire and a knowledge of the third point to provide an index of rotation of the chamber. The electrical characteristics are typically resistance values which can be determined by injecting current into the wires and determining a resulting voltage.

    Abstract translation: 提供了用于测量工具本身的倾斜角度和旋转角度的工具,特别是用于钻孔中。 该工具优选地包括一个不导电的圆柱形腔室,其包含一起填充腔室的导电流体和非导电流体; 至少两根平行于所述腔的纵向轴线定向的线,并且围绕所述腔的圆周定位,彼此不同于180度,使得所述导电和非导电流体之间的表面界面可以由沿着每个 的两根导线以及表面上的第三个点; 以及附接到所述电线的电气装置,用于感测对应于由所述流体界面限定的所述电线的点对应的电线的电特性; 以及用于使用感测到的电线的电特性,室半径的知识以及第三点的知识的装置,以及由此确定所述腔的倾斜指数。 优选地,用于使用感测到的电特性来确定倾斜度的装置也使用感测到的电线的电特性以及第三点的知识来提供腔的旋转指数。 电特性通常是可以通过将电流注入导线并确定所得电压来确定的电阻值。

    Proxy methods for expensive function optimization with expensive nonlinear constraints
    6.
    发明授权
    Proxy methods for expensive function optimization with expensive nonlinear constraints 有权
    具有昂贵的非线性约束的昂贵功能优化的代理方法

    公开(公告)号:US08670960B2

    公开(公告)日:2014-03-11

    申请号:US12914270

    申请日:2010-10-28

    CPC classification number: G06F17/11

    Abstract: A method for optimizing expensive functions with expensive nonlinear constraints. The method includes selecting sample data for evaluating an expensive function of a simulation, generating a function proxy model for the expensive function and a constraint proxy model for an expensive nonlinear constraint of the expensive function using an approximation scheme, calculating a first solution point for the simulation using the proxy models, and evaluating the expensive function at the first solution point using the sample data. When the expensive function and the proxy models do not converge at the first solution point, the method further includes adding the first solution point to the sample data for updating the proxy models. The method further includes repeating the calculation and evaluation of solution points until the expensive function and the proxy models converge and, following convergence, identifying an optimal solution of the function proxy model and the constraint proxy model.

    Abstract translation: 一种用昂贵的非线性约束优化昂贵功能的方法。 该方法包括选择用于评估模拟的昂贵功能的样本数据,为昂贵的函数生成功能代理模型和使用近似方案的昂贵功能的昂贵非线性约束的约束代理模型,计算第一解点 使用代理模型进行仿真,并使用样本数据评估第一个解决点处的昂贵功能。 当昂贵的功能和代理模型不会在第一个解决方案点收敛时,该方法还包括将第一个解决点添加到样本数据中以更新代理模型。 该方法还包括重复求解点的计算和评估,直到昂贵的函数和代理模型收敛,并且在收敛之后,识别功能代理模型和约束代理模型的最优解。

    Method for selecting well measurements
    7.
    发明授权
    Method for selecting well measurements 失效
    选择井测量的方法

    公开(公告)号:US08527203B2

    公开(公告)日:2013-09-03

    申请号:US12127436

    申请日:2008-05-27

    CPC classification number: E21B47/00

    Abstract: A method of determining a selection of well measurements and/or their respective control parameters is described based on a global target having predetermined sensitivities to a multitude of uncertainties associated with input variables to a model including the step of ranking measurements and control parameters in accordance with their capability to reduce the uncertainties of input variables identified as most sensitive input variables through simulations using the model or a reduced variant of the model.

    Abstract translation: 基于具有对与模型的输入变量相关联的许多不确定性的预定灵敏度的全局目标来描述确定井测量和/或其相应控制参数的选择的方法,该模型包括根据下列步骤对测量和控制参数进行排序 他们通过使用模型或模型的简化变体进行模拟,减少了被识别为最敏感的输入变量的输入变量的不确定性的能力。

    Automated field development planning of well and drainage locations
    8.
    发明授权
    Automated field development planning of well and drainage locations 有权
    井场排水场自动化现场开发规划

    公开(公告)号:US08005658B2

    公开(公告)日:2011-08-23

    申请号:US11756244

    申请日:2007-05-31

    CPC classification number: E21B43/30 E21B41/00

    Abstract: A hybrid evolutionary algorithm (“HEA”) technique is described for automatically calculating well and drainage locations in a field. The technique includes planning a set of wells on a static reservoir model using an automated well planner tool that designs realistic wells that satisfy drilling and construction constraints. A subset of these locations is then selected based on dynamic flow simulation using a cost function that maximizes recovery or economic benefit. In particular, a large population of candidate targets, drain holes and trajectories is initially created using fast calculation analysis tools of cost and value, and as the workflow proceeds, the population size is reduced in each successive operation, thereby facilitating use of increasingly sophisticated calculation analysis tools for economic valuation of the reservoir while reducing overall time required to obtain the result. In the final operation, only a small number of full reservoir simulations are required for the most promising FDPs.

    Abstract translation: 描述了一种混合进化算法(“HEA”)技术,用于自动计算场和排水位置。 该技术包括使用自动化井计划工具在静态储层模型上规划一组井,以设计满足钻井和施工约束的现实井。 然后基于使用最大化恢复或经济效益的成本函数的动态流模拟来选择这些位置的子集。 特别是,使用成本和价值的快速计算分析工具最初创建了大量候选目标,排水孔和轨迹,随着工作流程的进行,每个连续操作中的人口规模减小,从而便于使用越来越复杂的计算 水库经济评估的分析工具,同时减少获得结果所需的总体时间。 在最后的操作中,最有希望的FDP需要少量的全油藏模拟。

    System, method, and apparatus for fracture design optimization
    9.
    发明授权
    System, method, and apparatus for fracture design optimization 有权
    断裂设计优化的系统,方法和装置

    公开(公告)号:US07908230B2

    公开(公告)日:2011-03-15

    申请号:US12026589

    申请日:2008-02-06

    CPC classification number: E21B43/26

    Abstract: A method for optimizing fracture treatments includes interpreting a nominal pump schedule corresponding to a nominal value for each fracture control parameter. The method further includes interpreting environmental variables, and interpreting probability distributions for each of the environmental variables that is uncertain. The method further includes defining an objective function such as a net present value of each fracture treatment over a 365 day period following the fracture treatment. The method includes determining an optimal value for each fracture control parameter according to the objective function by determining the fracture control parameter values that yield the best mean net present value given the variability in the environmental variables as described by their probability distributions.

    Abstract translation: 用于优化断裂处理的方法包括解释对应于每个断裂控制参数的标称值的标称泵排程。 该方法还包括解释环境变量,以及解释不确定的每个环境变量的概率分布。 该方法还包括在断裂处理后的365天周期中定义目标函数,例如每个断裂处理的净现值。 该方法包括根据目标函数确定每个裂缝控制参数的最佳值,通过确定给出环境变量的可变性(由其概率分布描述)产生最佳平均净现值的断裂控制参数值。

    AUTOMATED FIELD DEVELOPMENT PLANNING
    10.
    发明申请
    AUTOMATED FIELD DEVELOPMENT PLANNING 有权
    自动化现场开发规划

    公开(公告)号:US20100185427A1

    公开(公告)日:2010-07-22

    申请号:US12356137

    申请日:2009-01-20

    CPC classification number: E21B43/00

    Abstract: A system for automatically optimizing a Field Development Plan (FDP) for an oil or gas field uses a fast analytic reservoir simulator to dynamically model oil or gas production from the entire reservoir over time in an accurate and rapid manner. An objective function defining a Figure of Merit (FoM) for candidate FDPs is maximized, using an optimization algorithm, to determine an optimized FDP in light of physical, engineering, operational, legal and engineering constraints. The objective function for the Figure of Merit, e.g., net present value (NPV) or total production for a given period of time, relies on a production forecast from the fast analytic reservoir simulator for the entire FDP. The position, orientation and dimensions of analytical model elements for the subsurface oil or gas field, as well as the physical properties associated with these elements, correlate to connected flow volume data from a Shared Earth Model (SEM). Uncertainty in the SEM is considered via stochastic sampling. In the presence of uncertainty, the optimum Field Development Plan (FoM) is selected by maximizing an objective function defining a risk-based Figure of Merit for the entire FDP.

    Abstract translation: 用于自动优化油田或油田现场开发计划(FDP)的系统使用快速分析油藏模拟器,以准确和快速的方式随时间动态地模拟整个油藏的油气产量。 根据物理,工程,操作,法律和工程方面的约束,使用优化算法来定义候选FDP的优点图(FoM)的客观函数被最大化以确定优化的FDP。 品质图的目标函数,例如净现值(NPV)或给定时间段内的总产量依赖于快速分析储层模拟器对于整个FDP的生产预测。 地下油或气田分析模型元素的位置,方向和尺寸以及与这些元素相关的物理性质与共享地球模型(SEM)的连接流量数据相关。 SEM中的不确定度是通过随机抽样来考虑的。 在存在不确定性的情况下,通过最大化定义基于风险的整个FDP优点图表的目标函数来选择最佳现场开发计划(FoM)。

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