Methods and apparatus for reducing stick-slip
    1.
    发明授权
    Methods and apparatus for reducing stick-slip 有权
    降低粘滑的方法和装置

    公开(公告)号:US08689906B2

    公开(公告)日:2014-04-08

    申请号:US13132559

    申请日:2009-11-30

    CPC classification number: E21B44/00 G05B15/02 G05D19/02

    Abstract: A method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, a method includes driving the drill string by a drilling mechanism at the upper end of the drill string. A fundamental frequency of stick-slip oscillations suffered by the drill string is estimated. Variations in a drive torque of the drilling mechanism are determined. Known torsional compliance of the drill string is combined with the variations in the drive torque. An output signal representing the instantaneous rotational speed is provided.

    Abstract translation: 一种用于估计钻柱下端的井底组件的瞬时转速的方法和装置。 在一个实施例中,一种方法包括通过在钻柱的上端处的钻孔机构来驱动钻柱。 估计钻柱遭受的粘滑振荡的基本频率。 确定钻孔机构的驱动扭矩的变化。 钻柱的已知扭转顺应性与驱动扭矩的变化相结合。 提供表示瞬时转速的输出信号。

    Method for detection of a malfunction related to a fluid affected component in a piston machine
    2.
    发明授权
    Method for detection of a malfunction related to a fluid affected component in a piston machine 有权
    用于检测与活塞机械中的流体影响部件有关的故障的方法

    公开(公告)号:US08601874B2

    公开(公告)日:2013-12-10

    申请号:US12598401

    申请日:2008-04-21

    Inventor: Age Kyllingstad

    Abstract: A method for detection of a leak in a fluid affected component of a piston machine includes obtaining a vibration signal from a vibration sensor disposed proximate to at least one valve block of the piston machine. The vibration signal includes vibration generated by valves in the valve block. The method further includes presenting the obtained vibration signal for analysis by at least one of a human or a computer, analyzing the obtained vibration signal with respect to revealing a malfunction related to a fluid affected component of the piston machine, and selecting the obtained vibration signal emitted from the valve block during the closed periods of the valves for presentation.

    Abstract translation: 用于检测活塞机的流体影响部件中的泄漏的方法包括从邻近活塞机械的至少一个阀块设置的振动传感器获得振动信号。 振动信号包括由阀块中的阀产生的振动。 该方法还包括:通过人或计算机中的至少一个呈现所获得的振动信号,分析获得的振动信号以揭示与活塞机的流体影响部件相关的故障,并且选择所获得的振动信号 在阀的关闭期间从阀块排出以供呈现。

    Method and device for detecting leaks in reciprocating machinery
    3.
    发明申请
    Method and device for detecting leaks in reciprocating machinery 失效
    检查往复机械泄漏的方法和装置

    公开(公告)号:US20050125171A1

    公开(公告)日:2005-06-09

    申请号:US10510586

    申请日:2003-04-10

    Inventor: Age Kyllingstad

    CPC classification number: F04B49/106 G01M3/025

    Abstract: A method of and device for detecting a leak in reciprocating machinery (1), comprising at least two pistons (2, 2′), by the volume flow at least out of the reciprocating machinery (1) being monitored and analysed, e.g. by means of Fourier analysis, in order to make it possible to detect a flow component, where the flow component has a frequency that differs from the fundamental frequency of the reciprocating machinery, the fundamental frequency of the reciprocating machinery being constituted by the rotational frequency of the reciprocating machinery multiplied by the number of pistons (2, 2′) in the reciprocating machinery.

    Abstract translation: 用于检测往复运动机械(1)中的泄漏的方法和装置,其包括至少两个活塞(2,2'),所述至少两个活塞(2,2')至少通过往复运动机械(1)的体积流量被监测和分析。 通过傅立叶分析,为了能够检测流量分量具有与往复机械的基频不同的频率的流量分量,往复机械的基频由旋转频率 往复机械乘以往复机械中的活塞(2,2')的数量。

    Method for detection of a fluid leak related to a piston machine
    4.
    发明授权
    Method for detection of a fluid leak related to a piston machine 有权
    用于检测与活塞机相关的流体泄漏的方法

    公开(公告)号:US08416093B2

    公开(公告)日:2013-04-09

    申请号:US12598382

    申请日:2008-04-18

    Inventor: Age Kyllingstad

    CPC classification number: G01M3/025 G01M15/12

    Abstract: A machine includes at least one piston and a pump shaft. A method for detecting a leak in the machine includes receiving a vibration signal from a vibration sensor disposed on at least one of an upstream pipe and a downstream pipe of the machine, receiving a rotational speed signal and an angular shaft position signal from a speed and position sensor disposed on the machine, calculating a rotational speed and an angular shaft position of the pump shaft, calculating at least one complex harmonic Fourier amplitude of the received vibration signal, low pass filtering the at least one complex harmonic Fourier amplitude, calculating a deviation amplitude as a magnitude of a complex difference between the filtered amplitude and a base amplitude, and monitoring the deviation amplitude to detect a leakage.

    Abstract translation: 机器包括至少一个活塞和泵轴。 一种用于检测机器中的泄漏的方法,包括从设置在机器的上游管道和下游管道中的至少一个的振动传感器接收振动信号,从速度接收转速信号和角轴位置信号,以及 位置传感器,设置在机器上,计算泵轴的转速和角轴位置,计算接收到的振动信号的至少一个复谐波傅里叶振幅,对至少一个复谐波傅里叶振幅进行低通滤波,计算偏差 幅度作为滤波幅度和基本振幅之间的复差的大小,并监视偏差振幅以检测泄漏。

    Method for Detection of a Fluid Leak Related to a Piston Machine
    5.
    发明申请
    Method for Detection of a Fluid Leak Related to a Piston Machine 有权
    检测与活塞机相关的液体泄漏的方法

    公开(公告)号:US20110046902A1

    公开(公告)日:2011-02-24

    申请号:US12674381

    申请日:2008-07-25

    Inventor: Age Kyllingstad

    Abstract: A method for detection of a fluid leak related to at least one piston machine (1), where the method includes: —attaching a pressure sensor (18, 24) to at least a pressure side of the at least one piston machine (1); —measuring the pressure on the pressure side of the at least one piston machine (1); —attaching a transmitter (28) to the at least one piston machine (1), said transmitter (28) rendering a signal for calculating the rotational speed of the at least one piston machine (1); —calculating the speed of the at least one piston machine (1); —calculating the sum of nominal flow rates from all piston machines (1); —calculating a flow rate compensation factor; —calculating a normalized pressure (42) to be equal to the discharge pressure multiplied by the said compensation factor for the flow rate; and —monitoring the normalized pressure (42) to detect a leakage.

    Abstract translation: 一种用于检测与至少一个活塞机(1)相关的流体泄漏的方法,其中所述方法包括:将压力传感器(18,24)附接到所述至少一个活塞机器(1)的至少一个压力侧, ; - 测量所述至少一个活塞机(1)的压力侧的压力; 将发射器(28)附接到所述至少一个活塞机器(1),所述发射器(28)呈现用于计算所述至少一个活塞机器(1)的转速的信号; 计算所述至少一个活塞机器(1)的速度; 计算所有活塞机(1)的额定流量的总和; 计算流量补偿系数; 将归一化压力(42)计算为等于排出压力乘以所述用于流量的所述补偿因子; 并监测归一化压力(42)以检测泄漏。

    Method for detection of a fluid leak related to a piston machine
    6.
    发明授权
    Method for detection of a fluid leak related to a piston machine 有权
    用于检测与活塞机相关的流体泄漏的方法

    公开(公告)号:US08412472B2

    公开(公告)日:2013-04-02

    申请号:US12674381

    申请日:2008-07-25

    Inventor: Age Kyllingstad

    Abstract: A method for detection of a fluid leak related to at least one piston machine (1), where the method includes: —attaching a pressure sensor (18, 24) to at least a pressure side of the at least one piston machine (1); —measuring the pressure on the pressure side of the at least one piston machine (1); —attaching a transmitter (28) to the at least one piston machine (1), said transmitter (28) rendering a signal for calculating the rotational speed of the at least one piston machine (1); —calculating the speed of the at least one piston machine (1); —calculating the sum of nominal flow rates from all piston machines (1); —calculating a flow rate compensation factor; —calculating a normalized pressure (42) to be equal to the discharge pressure multiplied by the said compensation factor for the flow rate; and —monitoring the normalized pressure (42) to detect a leakage.

    Abstract translation: 一种用于检测与至少一个活塞机(1)相关的流体泄漏的方法,其中所述方法包括:将压力传感器(18,24)附接到所述至少一个活塞机器(1)的至少一个压力侧, ; - 测量所述至少一个活塞机(1)的压力侧的压力; 将发射器(28)附接到所述至少一个活塞机器(1),所述发射器(28)呈现用于计算所述至少一个活塞机器(1)的转速的信号; 计算所述至少一个活塞机器(1)的速度; 计算所有活塞机(1)的额定流量的总和; 计算流量补偿系数; 将归一化压力(42)计算为等于排出压力乘以所述用于流量的所述补偿因子; 并监测归一化压力(42)以检测泄漏。

    Method for Determination of a Leakage on a Piston Machine
    7.
    发明申请
    Method for Determination of a Leakage on a Piston Machine 审中-公开
    确定活塞机器泄漏的方法

    公开(公告)号:US20090241642A1

    公开(公告)日:2009-10-01

    申请号:US11912103

    申请日:2006-04-10

    Inventor: Age Kyllingstad

    Abstract: A method of determining a leakage in a piston machine comprising at least two pistons is provided. The rotational velocity of the piston machine, and therefore the volume flow through the piston machine, is varied periodically as part of a time-limited active test while measuring the differential pressure and the angular position. An angular position-based Fourier analysis of the measured values from differential pressure and rotational velocity measurements performed during the test are used to experimentally determine the amplitude ratio and phase angle difference between volume flow variations and pressure variations. The amplitude ratio and phase angle difference are used, together with an angular position-based Fourier analysis of the measurements of differential pressure and rotational speed made after the active test, to determine the amplitude and phase of the leakage flow.

    Abstract translation: 提供一种确定包括至少两个活塞的活塞机中的泄漏的方法。 活塞机的旋转速度以及因此通过活塞机的体积流量在测量差压和角度位置时作为时间有限的主动测试的一部分周期性地变化。 使用在测试期间进行的差压和旋转速度测量的测量值的基于角位置的傅立叶分析来实验地确定体积流量变化和压力变化之间的振幅比和相位角差。 使用幅度比和相位角差,以及在主动测试之后进行的差压和转速的测量的基于角位置的傅立叶分析来确定泄漏流的幅度和相位。

    Method of Filtering Pump Noise
    8.
    发明申请
    Method of Filtering Pump Noise 有权
    过滤泵噪声的方法

    公开(公告)号:US20080259728A1

    公开(公告)日:2008-10-23

    申请号:US11628563

    申请日:2005-06-20

    Inventor: Age Kyllingstad

    CPC classification number: E21B47/18

    Abstract: A method of filtering out pressure noise generated by one or more piston pumps, where each pump is connected to a common downstream piping system, and where the discharge pressure is measured by a pressure sensitive gauge, wherein the instantaneous angular position(s) of the pump(s)' crankshaft or actuating cam is/are measured simultaneously with the discharge pressure and used as fundamental variables in an adaptive mathematical noise model.

    Abstract translation: 一种过滤由一个或多个活塞泵产生的压力噪声的方法,其中每个泵连接到公共的下游管道系统,并且其中排出压力由压力敏感计量器测量,其中,所述一个或多个活塞泵的瞬时角位置 泵或曲轴或致动凸轮与排气压力同时测量,并用作自适应数学噪声模型中的基本变量。

    Method and apparatus for reducing stick-slip
    9.
    发明授权
    Method and apparatus for reducing stick-slip 有权
    降低粘滑的方法和装置

    公开(公告)号:US09581008B2

    公开(公告)日:2017-02-28

    申请号:US13132421

    申请日:2008-12-02

    Inventor: Age Kyllingstad

    Abstract: A method and apparatus for damping stick-slip oscillations in a drill string. In one embodiment a method includes damping the stick-slip oscillations using a drilling mechanism at the top of said drill string. The speed of rotation of the drilling mechanism is controlled using a PI controller. The control is characterized by tuning the PI controller so that the drilling mechanism absorbs most torsional energy from the drill string at a frequency that is at or near a frequency of the stick-slip oscillations.

    Abstract translation: 一种用于阻止钻柱中的滑移振动的方法和装置。 在一个实施例中,一种方法包括使用在所述钻柱顶部的钻孔机构来阻尼粘滑振动。 使用PI控制器控制钻孔机构的旋转速度。 该控制的特征在于调节PI控制器,使得钻孔机构以处于或接近粘滑振荡频率的频率吸收来自钻柱的大部分扭转能量。

    Method and device for preventing a mud relief valve from incorrect opening
    10.
    发明授权
    Method and device for preventing a mud relief valve from incorrect opening 有权
    防止泄漏阀不正确打开的方法和装置

    公开(公告)号:US09163736B2

    公开(公告)日:2015-10-20

    申请号:US14005621

    申请日:2012-03-27

    Inventor: Age Kyllingstad

    CPC classification number: F16K13/04 E21B21/106 Y10T137/0379 Y10T137/1692

    Abstract: A device for preventing a primary relief valve in a mud system from opening at a pressure lower than a nominal opening pressure includes a flow restrictor between a mud pump of the mud system and the primary relief valve. In addition, the device includes a cavity between the flow restrictor and the primary relief valve.

    Abstract translation: 用于防止泥浆系统中的初级释放阀在低于标称开启压力的压力下打开的装置包括在泥浆系统的泥浆泵和第一安全阀之间的限流器。 此外,该装置包括在限流器和主安全阀之间的空腔。

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