公开(公告)号：US08374834B2

公开(公告)日：2013-02-12

申请号：US12859962

申请日：2010-08-20

Applicant: William J. Bailey ,  Benoit Couet ,  James R. Hogan ,  Iain S. Weir

Inventor： William J. Bailey ,  Benoit Couet ,  James R. Hogan ,  Iain S. Weir

IPC: G06G7/48

CPC classification number: G05B23/0283 ,  F04D15/0088 ,  G06Q10/04 ,  G06Q50/02 ,  Y02T10/82

Abstract: A statistical methodology is disclosed to provide time-to-event estimates for oilfield equipment. A method according to the present invention extracts unbiased information from equipment performance data and considers parameters interactions without recourse to data thinning. The analysis explicitly accounts for items of equipment that are still operational at the time of analysis. A method according to the present invention may also be utilized to apply survival analysis to any oilfield equipment components where time-to-event information has been recorded. The method of the present invention allows comparative reckoning between different components present in the system comprising several or many individual components and allows analysis of these components either individually or simultaneously, i.e., in the presence of other components.

Abstract translation: 披露了一种统计方法来提供油田设备的事件估计。 根据本发明的方法从设备性能数据中提取无偏差的信息，并考虑参数交互而不需要数据稀疏。 分析明确地说明了在分析时仍然运行的设备项目。 根据本发明的方法还可用于将生存分析应用于已记录时间 - 事件信息的任何油田设备部件。 本发明的方法允许在包含多个或多个单独组分的系统中存在的不同组分之间进行比较推算，并允许分别或同时分析这些组分，即在其它组分存在下进行分析。

公开(公告)号：US20110270591A1

公开(公告)日：2011-11-03

申请号：US12914270

申请日：2010-10-28

Applicant: Benoit COUET ,  Kashif RASHID ,  David WILKINSON ,  Saumil AMBANI ,  Eren CETINKAYA ,  Hugues DJIKPESSE

Inventor： Benoit COUET ,  Kashif RASHID ,  David WILKINSON ,  Saumil AMBANI ,  Eren CETINKAYA ,  Hugues DJIKPESSE

IPC: G06F17/10

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。

公开(公告)号：US20090299636A1

公开(公告)日：2009-12-03

申请号：US12127436

申请日：2008-05-27

Applicant: Andrew John Carnegie ,  Benoit Couet ,  Michael Prange ,  William John Bailey ,  Ibrahim Pamir Bursin ,  Stephen Flew

Inventor： Andrew John Carnegie ,  Benoit Couet ,  Michael Prange ,  William John Bailey ,  Ibrahim Pamir Bursin ,  Stephen Flew

IPC: G01V9/00 ,  G06G7/48 ,  G06F19/00

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。

公开(公告)号：US20090271233A1

公开(公告)日：2009-10-29

申请号：US12182890

申请日：2008-07-30

Applicant: Michael Prange ,  William J. Bailey ,  Benoit Couet ,  Hugues Djikpesse ,  Michael A. Elliott

Inventor： Michael Prange ,  William J. Bailey ,  Benoit Couet ,  Hugues Djikpesse ,  Michael A. Elliott

IPC: G06Q10/00

CPC classification number: E21B47/00

Abstract: 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.

Abstract translation: 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 。

公开(公告)号：US07112783B2

公开(公告)日：2006-09-26

申请号：US10657391

申请日：2003-09-08

Applicant: Darwin Ellis ,  Benoit Couet ,  Michael Evans ,  Charles R. Case ,  Françoise Allioli

Inventor： Darwin Ellis ,  Benoit Couet ,  Michael Evans ,  Charles R. Case ,  Françoise Allioli

IPC: G01V5/10

CPC classification number: G01V5/108

Abstract: The invention concerns a neutron measurement method for determining porosity of an earth formation surrounding a borehole comprising: conveying a tool along said borehole, wherein said tool comprises a source of neutron radiation and at least one detector axially spaced from said source; generating measured detector response for said at least one detector that is indicative of neutron radiation from said source interacting with said earth formations; operating said measured detector response with a predetermined mathematical equation and thereby obtaining corrected detector response that is independent of the density of said earth formation; and determining porosity of the earth formation surrounding the borehole from said corrected detector response. The invention also relates to a system implementing said method.

Abstract translation: 本发明涉及一种用于确定钻孔周围的地层的孔隙度的中子测量方法，包括：沿着所述钻孔输送工具，其中所述工具包括中子辐射源和与所述源轴向间隔开的至少一个检测器; 产生所述至少一个检测器的测量的检测器响应，其指示与所述地层相互作用的来自所述源的中子辐射; 以预定的数学方程操作所述测量的检测器响应，从而获得独立于所述地层密度的校正的检测器响应; 以及从所述校正的检测器响应确定钻孔周围的地层的孔隙度。 本发明还涉及一种实现所述方法的系统。

公开(公告)号：US06880402B1

公开(公告)日：2005-04-19

申请号：US10088723

申请日：2000-10-26

Applicant: Benoit Couet ,  Timothy Gareth John Jones

Inventor： Benoit Couet ,  Timothy Gareth John Jones

IPC: B08B3/12 ,  B08B7/02 ,  B08B9/04 ,  E21B34/06 ,  E21B37/00 ,  E21B37/06 ,  E21B43/38 ,  E21B47/00 ,  E21B47/01 ,  E21B47/08 ,  G01N5/00 ,  G01N29/036 ,  G01N29/24 ,  G01H1/12 ,  G01H13/00

CPC classification number: B08B3/12 ,  B08B7/028 ,  B08B9/027 ,  B08B2209/005 ,  E21B34/066 ,  E21B37/00 ,  E21B37/06 ,  E21B43/38 ,  E21B47/00 ,  E21B47/01 ,  E21B47/082 ,  G01N5/00 ,  G01N29/036 ,  G01N29/2456 ,  G01N2291/0231 ,  G01N2291/02818 ,  G01N2291/02827 ,  G01N2291/02854 ,  G01N2291/02872 ,  G01N2291/0421 ,  G01N2291/0422

Abstract: Described is an apparatus for detecting and removing deposits from a surface exposed to wellbore fluids. The apparatus can monitor the rate of deposition and subsequently remove the deposited material. The combination of detection apparatus and removal apparatus provides an instrument with self-cleaning operation mode.

Abstract translation: 描述了一种用于从暴露于井眼流体的表面检测和去除沉积物的装置。 该装置可以监测沉积速率并随后去除沉积的材料。 检测装置和去除装置的组合为仪器提供自清洁操作模式。

公开(公告)号：US06775578B2

公开(公告)日：2004-08-10

申请号：US09930935

申请日：2001-08-16

Applicant: Benoit Couet ,  Robert Burridge ,  David Wilkinson

Inventor： Benoit Couet ,  Robert Burridge ,  David Wilkinson

IPC: G05B1300

CPC classification number: E21B43/00

Abstract: Methods for optimization of oil well production with deference to reservoir and financial uncertainty include the application of portfolio management theory to associate levels of risk with Net Present Values (NPV) of the amount of oil expected to be extracted from the reservoir. Using the methods of the invention, production parameters such as pumping rates can be chosen to maximize NPV without exceeding a given level of risk, or, for a given level of risk, the minimum guaranteed NPV can be predicted to a 90% probability. An iterative process of generating efficient frontiers for objective functions such as NPV is provided.

Abstract translation: 优化油井生产优先考虑油藏和财务不确定性的方法包括应用投资组合管理理论将风险级别与净现值（NPV）联系起来，预计从油藏中提取的石油量。 使用本发明的方法，可以选择诸如泵送速率的生产参数来最大化NPV而不超过给定的风险水平，或者对于给定的风险级别，可以将最小保证的NPV预测为90％的概率。 提供了一种为NPV等目标函数产生有效前沿的迭代过程。