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1. 发明授权

EP2691594B1 METHOD AND DEVICE FOR PREVENTING A MUD RELIEF VALVE FROM INCORRECT OPENING 有权转让
标题翻译：方法和设备预防污泥产量阀不正确开幕
公开(公告)号：EP2691594B1
公开(公告)日：2015-09-09
申请号：EP12721964.0
申请日：2012-03-27
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： E21B21/10
CPC分类号： F16K13/04 , E21B21/106 , Y10T137/0379 , Y10T137/1692

2. 发明公开

EP2258042A1 METHOD FOR REDUCING COGGING TORQUE EFFECTS OF AN ELECTRICAL PERMANENT MAGNET MACHINE 审中-公开
标题翻译：法降低电永磁电机RAST失去作用，
公开(公告)号：EP2258042A1
公开(公告)日：2010-12-08
申请号：EP09723983.4
申请日：2009-03-16
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： H02P6/06 , H02P6/10
CPC分类号： H02P6/10 , H02P6/06
摘要： A method for reducing cogging torque effects of an electrical permanent magnet machine (1) where the machine (1) is connected to a drive (8), and where the drive (8) includes a feature of adding a torque component independent of a torque generated by a speed regulator, the machine having a rotor and a stator, where the method includes: - measuring the angular position of the rotor relative to the stator and the angular speed of the rotor by use of a sensor (6); - running at least two tests with at least two different cogging compensation signals from the drive (8) where one of the tests are designated an "a" test and another test is designated a "b" test; - analyse the received signal from the sensor (1) or sensors to find the corresponding amplitude and phase responses of the vibration signal for said tests; - calculate a first value by multiplying the complex cogging amplitude of the applied compensation signal for the a test with the complex amplitude of the vibration signal representing vibrations resulting from the cogging torque of the b test; - calculate a second value by multiplying the complex cogging amplitude of the applied compensation signal for the b test with the complex amplitude of the vibration signal representing vibrations resulting from the cogging torque of the a test; - calculate the desired complex cogging compensation amplitude by dividing the difference between said first value and said second value by the difference between the complex amplitudes of the vibration signals representing vibrations resulting from the b test and the a test; -apply a cogging compensation torque to the machine (1) based on the desired complex cogging compensation amplitude.

3. 发明公开

EP3152393A1 METHOD AND DEVICE FOR ESTIMATING DOWNHOLE STRING VARIABLES 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZURSCHÄTZUNGVON BOHRLOCHSTRANGVARIABLEN
公开(公告)号：EP3152393A1
公开(公告)日：2017-04-12
申请号：EP14894153.7
申请日：2014-06-05
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： E21B44/00
CPC分类号： E21B44/00 , E21B3/02 , E21B47/00
摘要： A method for estimating downhole speed and force variables at an arbitrary location of a moving drill string based on surface measurements of the same variables. The method includes a) using properties of said drill string to calculate transfer functions describing frequency-dependent amplitude and phase relations between cross combinations of said speed and force variables at the surface and downhole; b) selecting a base time period; c) measuring surface speed and force variables, conditioning the measured data by applying anti-aliasing and/or decimation filters, and storing the conditioned data, and d) calculating the downhole variables in the frequency domain by applying an integral transform, such as Fourier transform, of the surface variables, multiplying the results with said transfer functions, applying the inverse integral transform to sums of coherent terms and picking points in said base time periods to get time-delayed estimates of the dynamic speed and force variables.
摘要翻译：一种基于相同变量的表面测量来估计移动钻柱任意位置的井下速度和力变量的方法。该方法包括：a）使用所述钻柱的性质来计算描述所述速度的交叉组合和地表和井下的力变量之间的频率相关幅度和相位关系的传递函数; b）选择基准时间段; c）测量表面速度和力变量，通过应用抗混叠和/或抽取滤波器来调节测量数据，并存储经调节的数据，以及d）通过应用积分变换（如傅里叶变换）来计算频域中的井下变量变换表面变量，将结果与所述传递函数相乘，将逆积分变换应用于所述基本时间段中的相干项和采样点的和，以获得动态速度和力变量的延时估计。

4. 发明公开

EP2691594A2 METHOD AND DEVICE FOR PREVENTING A MUD RELIEF VALVE FROM INCORRECT OPENING 有权转让
标题翻译：方法和设备预防污泥产量阀不正确开幕
公开(公告)号：EP2691594A2
公开(公告)日：2014-02-05
申请号：EP12721964.0
申请日：2012-03-27
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： E21B21/10
CPC分类号： F16K13/04 , E21B21/106 , Y10T137/0379 , Y10T137/1692
摘要： Method and device for preventing a primary relief valve (12) in a mud system (1) from opening at a pressure lower than a nominal opening pressure, and where the mud system (1) includes a mud pump (2), wherein the method includes: - installing an flow restrictor (16) between the mud pump (2) and the primary relief valve (12); and -providing a cavity (20) between the flow restrictor (16) and the primary relief valve (12).

5. 发明授权

EP2643673B1 METHOD FOR DETECTION AND LOCALIZATION OF A FLUID LEAK RELATED TO A PISTON MACHINE 有权
公开(公告)号：EP2643673B1
公开(公告)日：2020-11-04
申请号：EP11843500.7
申请日：2011-11-18
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge , NESSJØEN, Pål, Jakob
IPC分类号： G01M3/24 , F04B51/00 , G01H1/00 , G01M3/02 , G01M13/02 , G01M15/12

6. 发明公开

EP3099883A2 IMPROVED CONTROL OF WELL BORE TRAJECTORIES 有权转让
标题翻译： WELL改善控制下运行
公开(公告)号：EP3099883A2
公开(公告)日：2016-12-07
申请号：EP15704107.0
申请日：2015-01-27
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： E21B7/04 , E21B7/10
CPC分类号： E21B44/04 , E21B7/04 , E21B7/06 , E21B7/10 , E21B47/12 , G06F17/5086
摘要： There are also described systems for executing the methods as well as computer program products comprising instructions for causing a processor to perform the methods as described herein.

7. 发明公开

EP2807332A1 METHOD FOR REDUCING DRILLSTRING OSCILLATIONS 有权
标题翻译：一种用于减少钻杆的振动
公开(公告)号：EP2807332A1
公开(公告)日：2014-12-03
申请号：EP13740504.9
申请日：2013-01-17
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： E21B44/00 , E21B41/00
CPC分类号： E21B44/00 , E21B41/0092
摘要： A drillstring with a bit is characterized by controllable variables of vertical and rotational speeds and response variables of axial tension force and torque, referenced to the top of the drillstring. A method of reducing or avoiding at least an axial or a torsional oscillation mode in the drillstring includes: choosing at least one oscillation mode to be controlled; selecting and monitoring a relevant controllable variable and a relevant response variable; determining the oscillation period; estimating from the response variable a dynamic component of bit speed; determining a speed pulse capable of producing a generated oscillation with amplitude substantially equal to the amplitude of the dynamic component of bit speed; and Using open-loop control to add the speed pulse to an operator set speed command when the dynamic component of bit speed has an amplitude exceeding a threshold level and an anti-phase matching a phase of the generated oscillation.

8. 发明公开

EP2643673A1 METHOD FOR DETECTION AND LOCALIZATION OF A FLUID LEAK RELATED TO A PISTON MACHINE 有权
标题翻译：法中的活塞引擎，侦测和流体泄漏隔离
公开(公告)号：EP2643673A1
公开(公告)日：2013-10-02
申请号：EP11843500.7
申请日：2011-11-18
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge , NESSJØEN, Pål, Jakob
IPC分类号： G01M3/24 , F04B51/00 , G01H1/00
CPC分类号： F04B49/00 , F04B51/00 , G01H1/00 , G01H1/12 , G01M3/025 , G01M3/24 , G01M7/02 , G01M13/028 , G01M15/12 , G06F17/40 , G06F19/00
摘要： A method for detecting and localizing a valve leak in a piston machine having a shaft includes: attaching one or more vibration sensor to a valve block of the piston machine; measuring the vibrations from at least one of the vibration sensors; attaching a sensor to the piston machine where the sensor is designed to produce, directly or indirectly, an angular shaft position signal for the shaft; determining, directly or indirectly, an angular shaft position signal for the shaft; transforming vibration signals from the one or more vibration sensors into one envelope signal representing an instant vibration level; using the angular position signal for constructing window functions that pick the envelope signal in selected angular shaft sectors; using the window functions to find sector based averages of the vibration level; and comparing said averages with a critical ambient vibration level to detect and localize leaks in one or two valves.

9. 发明授权

EP3152393B1 METHOD AND DEVICE FOR ESTIMATING DOWNHOLE STRING VARIABLES 有权转让
公开(公告)号：EP3152393B1
公开(公告)日：2019-07-24
申请号：EP14894153.7
申请日：2014-06-05
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： E21B44/00

10. 发明授权

EP2142900B1 METHOD FOR DETECTION OF A FLUID LEAK RELATED TO A PISTON MACHINE 有权
标题翻译：检测与活塞式机器相关的流体泄漏的方法
公开(公告)号：EP2142900B1
公开(公告)日：2017-12-13
申请号：EP08741729.1
申请日：2008-04-18
申请人： National Oilwell Varco Norway AS
发明人： KYLLINGSTAD, Åge
IPC分类号： G01M15/12 , G01M3/02
CPC分类号： G01M3/025 , G01M15/12

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