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    • 3. 发明申请
    • VALUING FUTURE INFORMATION UNDER UNCERTAINTY
    • 未知的未来信息
    • US20090271233A1
    • 2009-10-29
    • US12182890
    • 2008-07-30
    • Michael PrangeWilliam J. BaileyBenoit CouetHugues DjikpesseMichael A. Elliott
    • Michael PrangeWilliam J. BaileyBenoit CouetHugues DjikpesseMichael A. Elliott
    • G06Q10/00
    • E21B47/00
    • The invention relates to a method of performing an oilfield operation of an oilfield having at least one well having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein. The method steps include analyzing the oilfield operation to generate a decision tree comprising a first decision and a second decision, wherein a first outcome of the first decision dictates acquiring information relevant to the second decision, formulating a figure of merit of the oilfield operation according to the decision tree based on the information and uncertainties associated with the oilfield, determining a value of the figure of merit by modeling the oilfield operation using statistical sampling, and performing the oilfield operation upon making the first decision based on the value of the figure of merit.
    • 本发明涉及一种执行油田的油田作业的方法,该油田具有至少一个具有穿透地下地层的井眼的井,用于从地下油藏中提取流体。 所述方法步骤包括分析油田操作以产生包括第一决策和第二决策的决策树,其中,所述第一决策的第一结果决定获取与所述第二决策有关的信息,根据所述第二决定制定油田操作的品质因数 基于与油田相关的信息和不确定性的决策树,通过使用统计抽样建模油田作业确定品质因数的价值,并根据品质因数的价值进行第一个决定时进行油田作业 。
    • 8. 发明授权
    • Automated field development planning of well and drainage locations
    • 井场排水场自动化现场开发规划
    • US08005658B2
    • 2011-08-23
    • US11756244
    • 2007-05-31
    • Peter Gerhard TilkeWilliam J. BaileyBenoit CouetMichael PrangeMartin Crick
    • Peter Gerhard TilkeWilliam J. BaileyBenoit CouetMichael PrangeMartin Crick
    • G06F17/50G06G7/48G01V3/38G01V1/40
    • E21B43/30E21B41/00
    • 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.
    • 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。
    • 9. 发明授权
    • Uncertainty constrained subsurface modeling
    • 不确定性约束地下建模
    • US06549854B1
    • 2003-04-15
    • US09502920
    • 2000-02-11
    • Alberto MalinvernoMichael Prange
    • Alberto MalinvernoMichael Prange
    • G01V130
    • G01V1/282G01V11/00G01V2210/66G01V2210/667
    • A method, apparatus, and article of manufacture are provided that use measurement data to create a model of a subsurface area. The method includes creating an initial parameterized model having an initial estimate of model parameter uncertainties; considering measurement data from the subsurface area; updating the model and its associated uncertainty estimate; and repeating the considering and updating steps with additional measurement data. A computer-based apparatus and article of manufacture for implementing the method are also disclosed. The method, apparatus, and article of manufacture are particularly useful in assisting oil companies in making hydrocarbon reservoir data acquisition, drilling and field development decisions.
    • 提供了一种使用测量数据来创建地下区域的模型的方法,装置和制品。 该方法包括创建具有模型参数不确定性的初始估计的初始参数化模型; 考虑地下区域的测量数据; 更新模型及其相关的不确定性估计; 并用附加的测量数据重复考虑和更新步骤。 还公开了一种用于实现该方法的基于计算机的设备和制品。 该方法,设备和制造工具在协助石油公司进行油气藏数据采集,钻井和现场开发决策方面特别有用。
    • 10. 发明申请
    • PILLAR GRID CONVERSION
    • 支柱转换
    • US20110310101A1
    • 2011-12-22
    • US12820379
    • 2010-06-22
    • David Michael PrangeThibaut KleinHugues A. Djikpesse
    • David Michael PrangeThibaut KleinHugues A. Djikpesse
    • G06T17/30
    • G06T17/05G01V99/00G06T17/20
    • One or more computer-readable media include computer-executable instructions to instruct a computing system to access data that define a pillar grid where pillar nodes of the pillar grid define logical cells of a reservoir model, partition the pillar grid into subvolumes, build surfaces to define boundaries for each of the subvolumes where each of the surfaces includes polygons defined by surface nodes, generate a mesh of property nodes for each of the subvolumes where at least some of the property nodes include properties derived from properties of the reservoir model, and store data that define the subvolumes, the surfaces and the meshes. Other examples include a method of processing information for subsequent visual presentation with respect to a reservoir model and techniques for merging models. Various other apparatuses, systems, methods, etc., are also disclosed.
    • 一个或多个计算机可读介质包括计算机可执行指令,用于指示计算系统访问定义支柱网格的数据,其中支柱网格的柱节点定义储层模型的逻辑单元,将支柱网格划分为子体积,构建表面 定义每个子体积的边界,其中每个表面包括由表面节点定义的多边形,为每个子体积生成属性节点的网格,其中至少一些属性节点包括从储层模型的属性导出的属性,并存储 定义子体积,表面和网格的数据。 其他示例包括处理关于储存器模型的后续视觉呈现的信息的方法和用于合并模型的技术。 还公开了各种其它装置,系统,方法等。