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1. 发明授权

US07266983B2 Methods to detect formation pressure 失效
标题翻译：检测地层压力的方法
公开(公告)号：US07266983B2
公开(公告)日：2007-09-11
申请号：US11195310
申请日：2005-08-02
申请人： Sven Krueger , Eick Niemeyer , Matthias Meister , Jaedong Lee
发明人： Sven Krueger , Eick Niemeyer , Matthias Meister , Jaedong Lee
IPC分类号： E21B21/08
CPC分类号： E21B49/008 , E21B49/08 , E21B49/081 , E21B49/10
摘要： A method of determining a formation pressure during drawdown of a formation comprises sampling fluid from a formation using a downhole tool. A fluid sample pressure is determined at two different times during the drawdown. The fluid sample pressures are analyzed using a higher-order pressure derivative with respect to time technique to determine the formation pressure during the drawdown. Another method of determining a formation pressure during drawdown of a formation comprises sampling fluid from a formation using a downhole tool. A fluid sample pressure is determined at two different times during the drawdown. The fluid sample pressures are analyzed using at least two analysis techniques to each determine an estimate of the formation pressure during the drawdown.
摘要翻译：确定地层压降期间的地层压力的方法包括使用井下工具从地层采集流体。流体样品压力在下降期间在两个不同时间确定。使用相对于时间技术的高阶压力导数来分析流体样本压力，以确定在下降期间的地层压力。确定地层压降期间的地层压力的另一种方法包括使用井下工具从地层采集流体。流体样品压力在下降期间在两个不同时间确定。使用至少两种分析技术来分析流体样品压力，以分别确定在压降期间地层压力的估计。

2. 发明授权

US07011155B2 Formation testing apparatus and method for optimizing draw down 有权
标题翻译：地层试验装置及优化方法
公开(公告)号：US07011155B2
公开(公告)日：2006-03-14
申请号：US10423420
申请日：2003-04-25
申请人： Matthias Meister , Jaedong Lee , Sven Krueger , Eick Niemeyer
发明人： Matthias Meister , Jaedong Lee , Sven Krueger , Eick Niemeyer
IPC分类号： E21B49/00 , E21B47/10
CPC分类号： E21B49/008 , E21B49/08 , E21B49/087
摘要： A method and apparatus for of determining a formation parameter of interest. The method includes placing a tool into communication with the formation to test the formation, determining a first formation characteristic during a first test portion, initiating a second test portion, the second test portion having test parameters determined at least in part by the determinations made during the first test portion, determining a second formation characteristic during the second test portion, and determining the formation parameter from one of the first formation characteristic and the second formation characteristic. The apparatus includes a draw down unit and a control system for closed loop control of the draw down unit. A microprocessor in the control system processes signals from a sensor in the draw down unit to determine formation characteristics and to determine test parameters for subsequent test portions.
摘要翻译：一种用于确定感兴趣的地层参数的方法和装置。该方法包括将工具与地层连通以测试地层，确定第一测试部分期间的第一地层特征，启动第二测试部分，第二测试部分具有至少部分地通过在第一测试部分，确定第二测试部分期间的第二形成特征，以及根据第一形成特征和第二形成特征中的一个确定形成参数。该设备包括一个牵引单元和一个用于闭合控制牵引单元的控制系统。控制系统中的微处理器处理来自牵引单元中的传感器的信号以确定形成特征并确定后续测试部分的测试参数。

3. 发明申请

US20060016594A1 Methods to detect formation pressure 失效
标题翻译：检测地层压力的方法
公开(公告)号：US20060016594A1
公开(公告)日：2006-01-26
申请号：US11195310
申请日：2005-08-02
申请人： Sven Krueger , Eick Niemeyer , Matthias Meister , Jaedong Lee
发明人： Sven Krueger , Eick Niemeyer , Matthias Meister , Jaedong Lee
IPC分类号： E21B47/00
CPC分类号： E21B49/008 , E21B49/08 , E21B49/081 , E21B49/10
摘要： A method of determining a formation pressure during drawdown of a formation comprises sampling fluid from a formation using a downhole tool. A fluid sample pressure is determined at two different times during the drawdown. The fluid sample pressures are analyzed using a higher-order pressure derivative with respect to time technique to determine the formation pressure during the drawdown. Another method of determining a formation pressure during drawdown of a formation comprises sampling fluid from a formation using a downhole tool. A fluid sample pressure is determined at two different times during the drawdown. The fluid sample pressures are analyzed using at least two analysis techniques to each determine an estimate of the formation pressure during the drawdown.
摘要翻译：确定地层压降期间的地层压力的方法包括使用井下工具从地层采集流体。流体样品压力在下降期间在两个不同时间确定。使用相对于时间技术的高阶压力导数来分析流体样本压力，以确定在下降期间的地层压力。确定地层压降期间的地层压力的另一种方法包括使用井下工具从地层采集流体。流体样品压力在下降期间在两个不同时间确定。使用至少两种分析技术来分析流体样品压力，以分别确定在压降期间地层压力的估计。

4. 发明授权

US06923052B2 Methods to detect formation pressure 有权
标题翻译：检测地层压力的方法
公开(公告)号：US06923052B2
公开(公告)日：2005-08-02
申请号：US10242184
申请日：2002-09-12
申请人： Sven Krueger , Eick Niemeyer , Matthias Meister , Jaedong Lee
发明人： Sven Krueger , Eick Niemeyer , Matthias Meister , Jaedong Lee
IPC分类号： E21B49/00 , E21B49/10 , E21B21/08 , E21B47/06 , E21B47/10 , E21B49/08
CPC分类号： E21B49/10 , E21B49/008
摘要： Methods for estimating formation pressure from data taken during the drawdown cycle are presented. In one aspect, a method of determining a formation pressure during drawdown of a formation comprises sampling fluid from a formation using a downhole tool having a sample volume and a fluid sampling device. At least one time dependent parameter of interest related to the fluid is determined during the drawdown. The at least one time dependent parameter is analyzed using a plurality of calculation techniques to determine the formation pressure. The techniques include (i) a first pressure derivative technique; (ii) a second pressure derivative technique; (iii) a formation rate analysis technique; (iv) a dp/dt-ratio technique; and (v) a stepwise drawdown technique.
摘要翻译：提出了在降压循环期间从数据中估算地层压力的方法。在一个方面，确定地层压降期间的地层压力的方法包括使用具有样品体积的井下工具和流体取样装置从地层采集流体。在抽出期间确定与流体相关的至少一个与时间相关的参数。使用多个计算技术来分析至少一个时间依赖参数以确定地层压力。这些技术包括（i）第一压力衍生技术; （ii）第二压力衍生技术; （iii）形成速率分析技术; （iv）dp / dt比技术; 和（v）逐步缩小技术。

5. 发明授权

US06581455B1 Modified formation testing apparatus with borehole grippers and method of formation testing 失效
标题翻译：具有钻孔夹具的修形地层试验装置和地层试验方法
公开(公告)号：US06581455B1
公开(公告)日：2003-06-24
申请号：US09703645
申请日：2000-11-01
申请人： Per-Erik Berger , Volker Krueger , Matthias Meister , John M. Michaels , Jaedong Lee
发明人： Per-Erik Berger , Volker Krueger , Matthias Meister , John M. Michaels , Jaedong Lee
IPC分类号： E21B4708
CPC分类号： E21B21/103 , E21B33/1243 , E21B43/26 , E21B49/008 , E21B49/06 , E21B49/08 , E21B49/10
摘要： An apparatus and method for obtaining samples of pristine formation or; formation fluid, using a work string designed for performing other downhole work such as drilling, workover operations, or re-entry operations. An extendable element extends against the formation wall to obtain the pristine formation or fluid sample. The apparatus includes at least one extendable gripper element for anchoring the apparatus during testing and sampling operations.
摘要翻译：一种用于获得原始形成样品的设备和方法; 地层流体，使用设计用于执行其他井下作业的工作柱，例如钻井，修井操作或重新进入操作。可延伸元件抵靠地层壁延伸以获得原始地层或流体样品。该装置包括用于在测试和取样操作期间锚定该装置的至少一个可延伸夹持元件。

6. 发明授权

US07647824B2 System and method for estimating formation supercharge pressure 失效
标题翻译：用于估计地层增压压力的系统和方法
公开(公告)号：US07647824B2
公开(公告)日：2010-01-19
申请号：US11737223
申请日：2007-04-19
申请人： Jianghui Wu , Jaedong Lee , Matthias Meister
发明人： Jianghui Wu , Jaedong Lee , Matthias Meister
IPC分类号： E21B47/06 , G01V9/00
CPC分类号： E21B47/06 , E21B49/087
摘要： A method of estimating a formation pressure in a wellbore is provided that in one aspect includes measuring a hydrostatic pressure at a selected location in the wellbore, and estimating supercharge pressure as a function of time using a forward model that utilizes the hydrostatic pressure and at least one property of mud in the wellbore that is a function of time. In another aspect, the method may estimate an initial formation pressure at a selected location in a wellbore by obtaining a hydrostatic pressure and at least three formation pressure measurements at three separate times at the selected location, and estimating the initial formation pressure using the hydrostatic pressure, the three pressure measurements and an internal mudcake parameter.
摘要翻译：提供了一种估计井筒中的地层压力的方法，其在一个方面包括测量在井筒中的选定位置处的静水压力，并且使用利用静水压力的至少一个正向模型估计作为时间的函数的增压压力，并且至少井眼中泥土的一个属性是时间的函数。在另一方面，该方法可以通过在所选择的位置处在三个不同时间获得静水压力和至少三次地层压力测量值来估计井筒中选定位置处的初始地层压力，并且使用流体静力压力估计初始地层压力，三个压力测量和一个内部泥饼参数。

7. 发明申请

US20070256489A1 System and Method for Estimating Formation Supercharge Pressure 失效
标题翻译：用于估算地层增压压力的系统和方法
公开(公告)号：US20070256489A1
公开(公告)日：2007-11-08
申请号：US11737223
申请日：2007-04-19
申请人： Jianghui Wu , Jaedong Lee , Matthias Meister
发明人： Jianghui Wu , Jaedong Lee , Matthias Meister
IPC分类号： E21B21/08
CPC分类号： E21B47/06 , E21B49/087
摘要： A method of estimating a formation pressure in a wellbore is provided that in one aspect includes measuring a hydrostatic pressure at a selected location in the wellbore, and estimating supercharge pressure as a function of time using a forward model that utilizes the hydrostatic pressure and at least one property of mud in the wellbore that is a function of time. In another aspect, the method may estimate an initial formation pressure at a selected location in a wellbore by obtaining a hydrostatic pressure and at least three formation pressure measurements at three separate times at the selected location, and estimating the initial formation pressure using the hydrostatic pressure, the three pressure measurements and an internal mudcake parameter.
摘要翻译：提供了一种估计井筒中的地层压力的方法，其在一个方面包括测量在井筒中的选定位置处的静水压力，并且使用利用静水压力的至少一个正向模型估计作为时间的函数的增压压力，并且至少井眼中泥土的一个属性是时间的函数。在另一方面，该方法可以通过在所选择的位置处在三个不同时间获得静水压力和至少三次地层压力测量值来估计井筒中选定位置处的初始地层压力，并且使用流体静力压力估计初始地层压力，三个压力测量和一个内部泥饼参数。

8. 发明授权

US06478096B1 Apparatus and method for formation testing while drilling with minimum system volume 有权
标题翻译：最小系统体积钻孔时的地层测试装置和方法
公开(公告)号：US06478096B1
公开(公告)日：2002-11-12
申请号：US09621398
申请日：2000-07-21
申请人： Stanley C. Jones , John M. Michaels , Jaedong Lee , Matthias Meister , Volker Krueger
发明人： Stanley C. Jones , John M. Michaels , Jaedong Lee , Matthias Meister , Volker Krueger
IPC分类号： E21B4910
CPC分类号： E21B44/00 , E21B49/008 , E21B49/10
摘要： A minimum volume apparatus and method is provided including a tool for obtaining at least one parameter of interest of a subterranean formation in-situ, the tool comprising a carrier member, a selectively extendable member mounted on the carrier for isolating a portion of annulus, a port exposable to formation fluid in the isolated annulus space, a piston integrally disposed within the extendable member for urging the fluid into the port, and a sensor operatively associated with the port for detecting at least one parameter of interest of the fluid.
摘要翻译：提供了一种最小体积的装置和方法，其包括用于在原地获得地下地层的至少一个目标参数的工具，所述工具包括载体构件，安装在载体上用于隔离环的一部分的选择性可延伸构件，可暴露于隔离环空间内的地层流体的端口，整体地设置在可延伸构件内用于将流体推入端口的活塞以及与端口可操作地相关联的传感器，用于检测流体感兴趣的至少一个参数。

9. 发明授权

US06640908B2 Apparatus and method for formation testing while drilling with minimum system volume 有权
公开(公告)号：US06640908B2
公开(公告)日：2003-11-04
申请号：US10213865
申请日：2002-08-07
申请人： Stanley C. Jones , John M. Michaels , Jaedong Lee , Matthias Meister , Volker Krueger
发明人： Stanley C. Jones , John M. Michaels , Jaedong Lee , Matthias Meister , Volker Krueger
IPC分类号： E21B4910
CPC分类号： E21B44/00 , E21B49/008 , E21B49/10
摘要： A minimum volume apparatus and method is provided including a tool for obtaining at least one parameter of interest of a subterranean formation in-situ, the tool comprising a carrier member, a selectively extendable member mounted on the carrier for isolating a portion of annulus, a port exposable to formation fluid in the isolated annulus space, a piston integrally disposed within the extendable member for urging the fluid into the port, and a sensor operatively associated with the port for detecting at least one parameter of interest of the fluid.

10. 发明授权

US06609568B2 Closed-loop drawdown apparatus and method for in-situ analysis of formation fluids 有权
公开(公告)号：US06609568B2
公开(公告)日：2003-08-26
申请号：US09910209
申请日：2001-07-20
申请人： Volker Krueger , Matthias Meister , John M. Michaels , Jaedong Lee , Stanley C. Jones
发明人： Volker Krueger , Matthias Meister , John M. Michaels , Jaedong Lee , Stanley C. Jones
IPC分类号： E21B4910
CPC分类号： E21B49/10 , E21B47/06 , E21B49/008 , G01V11/002
摘要： An apparatus and method capable of incrementally decreasing the borehole pressure at a variable rate by controlling a test volume within the borehole. The system includes an incrementally controllable pump, closed loop feedback and a controller for drawing down the pressure of a test volume to a level just below formation pressure. This incremental drawdown system will significantly reduce the overall measurement time, thereby increasing drilling efficiency and safety.

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