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    • 12. 发明授权
    • Valuing future information under uncertainty
    • 评估未来信息的不确定性
    • US08073800B2
    • 2011-12-06
    • US12182890
    • 2008-07-30
    • Michael PrangeWilliam J. BaileyBenoit CouetHugues DjikpesseMichael A. Elliott
    • Michael PrangeWilliam J. BaileyBenoit CouetHugues DjikpesseMichael A. Elliott
    • G06F17/00G06N5/02
    • 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 。
    • 15. 发明申请
    • AUTOMATED FIELD DEVELOPMENT PLANNING OF WELL AND DRAINAGE LOCATIONS
    • 自动化田间开发规划井和排水位置
    • US20080300793A1
    • 2008-12-04
    • US11756244
    • 2007-05-31
    • Peter Gerhard TilkeWilliam J. BaileyBenoit CouetMichael PrangeMartin Crick
    • Peter Gerhard TilkeWilliam J. BaileyBenoit CouetMichael PrangeMartin Crick
    • G01V9/00G06F19/00
    • 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,从而便于使用日益复杂的计算 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。
    • 16. 发明授权
    • Fire damper with auxiliary springs
    • 消防阀与辅助弹簧
    • US5217407A
    • 1993-06-08
    • US714002
    • 1991-06-11
    • William J. Bailey
    • William J. Bailey
    • A62C2/16F24F13/10
    • A62C2/16F24F13/10F24F2011/0098
    • A fire damper comprising a plurality of interconnected blades is provided with a pair of primary negator type springs which are attached to the leading blade and a pair of auxiliary negator type springs which are attached to an intermediate blade. The blades are normally maintained in a folded condition with the springs exerting a biasing force urging movement of the blades to an extended closed position. Upon release of the blades in response to detection of fire or smoke conditions, the springs cooperate to move the blade assembly to the completely closed position. The auxiliary springs increase the rate of closing of the assembly and facilitate unfolding of a portion of the blade assembly to enhance the closing of the assembly even under high air flow conditions.
    • 包括多个互连叶片的防火阻尼器设置有一对主要的隔离型弹簧,其连接到前叶片和一对附接到中间叶片上的辅助除叶型弹簧。 叶片通常保持在折叠状态,弹簧施加一个推动叶片运动到延伸关闭位置的偏压力。 在响应于检测到火或烟雾条件而释放叶片时,弹簧协作以将叶片组件移动到完全关闭位置。 辅助弹簧增加了组件的关闭速度并且便于刀片组件的一部分的展开,以增强组件的关闭,即使在高空气流动条件下。