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1. 发明申请

US20080247880A1 Systems and Methods for Reducing Pump Downtime by Determining Rotation Speed Using a Variable Speed Drive 有权
标题翻译：通过使用变速驱动确定转速来减少停泵时间的系统和方法
公开(公告)号：US20080247880A1
公开(公告)日：2008-10-09
申请号：US12061241
申请日：2008-04-02
申请人： John M. Leuthen , Sheldon Plitt , Jerald R. Rider , Tom G. Yohanan
发明人： John M. Leuthen , Sheldon Plitt , Jerald R. Rider , Tom G. Yohanan
IPC分类号： F04B49/06 , H02P5/00
CPC分类号： E21B43/128 , F04D15/0066
摘要： Systems and methods for using variable speed drives to restart downhole submersible pump motors. In one embodiment, a downhole pump is controlled using a variable speed drive that includes a control system configured to detect interruptions in the operation of the pump system. After an interruption that requires the restart of the pump motor, the control system determines the reverse rotational speed of the pump motor and restarts the motor when this speed is sufficiently low. The control system may be configured to reduce the output voltage of the variable speed drive and sweep through a range of output frequencies to determine the frequency at which the current drawn by the motor is lowest. This is the frequency at which the drive's output matches the speed of the motor and the apparent impedance of the motor is highest. When the speed is low enough, the motor is restarted.
摘要翻译：使用变速驱动器重新启动井下潜水泵电机的系统和方法。在一个实施例中，使用变速驱动器控制井下泵，所述变速驱动器包括被配置为检测泵系统的操作中的中断的控制系统。在需要重新启动泵电机的中断之后，控制系统确定泵电机的反转速度，并在该速度足够低时重启电动机。控制系统可以被配置为减小变速驱动器的输出电压并且扫过一定范围的输出频率以确定由电动机汲取的电流最低的频率。这是驱动器的输出与电机速度匹配的频率，电机的视在阻抗最高。当速度足够低时，电机重启。

2. 发明授权

US08092190B2 Systems and methods for reducing pump downtime by determining rotation speed using a variable speed drive 有权
标题翻译：通过使用变速驱动器确定转速来减少停泵时间的系统和方法
公开(公告)号：US08092190B2
公开(公告)日：2012-01-10
申请号：US12061241
申请日：2008-04-02
申请人： John M. Leuthen , Sheldon Plitt , Jerald R. Rider , Tom G. Yohanan
发明人： John M. Leuthen , Sheldon Plitt , Jerald R. Rider , Tom G. Yohanan
IPC分类号： F04B49/06 , H02P1/16
CPC分类号： E21B43/128 , F04D15/0066
摘要： Systems and methods for using variable speed drives to restart downhole submersible pump motors. In one embodiment, a downhole pump is controlled using a variable speed drive that includes a control system configured to detect interruptions in the operation of the pump system. After an interruption that requires the restart of the pump motor, the control system determines the reverse rotational speed of the pump motor and restarts the motor when this speed is sufficiently low. The control system may be configured to reduce the output voltage of the variable speed drive and sweep through a range of output frequencies to determine the frequency at which the current drawn by the motor is lowest. This is the frequency at which the drive's output matches the speed of the motor and the apparent impedance of the motor is highest. When the speed is low enough, the motor is restarted.
摘要翻译：使用变速驱动器重新启动井下潜水泵电机的系统和方法。在一个实施例中，使用变速驱动器控制井下泵，所述变速驱动器包括被配置为检测泵系统的操作中的中断的控制系统。在需要重新启动泵电机的中断之后，控制系统确定泵电机的反转速度，并在该速度足够低时重启电动机。控制系统可以被配置为减小变速驱动器的输出电压并且扫过一定范围的输出频率以确定由电动机汲取的电流最低的频率。这是驱动器的输出与电机速度匹配的频率，电机的视在阻抗最高。当速度足够低时，电机重启。

3. 发明申请

US20110033314A1 Systems and Methods for Automatic Forward Phasing Determination in a Downhole Pump System 有权
标题翻译：井下泵系统中自动正相确定的系统和方法
公开(公告)号：US20110033314A1
公开(公告)日：2011-02-10
申请号：US12537154
申请日：2009-08-06
申请人： Sheldon Plitt , Jerald R. Rider , Dick L. Knox , William Carter, JR.
发明人： Sheldon Plitt , Jerald R. Rider , Dick L. Knox , William Carter, JR.
IPC分类号： F04B49/00
CPC分类号： F04B47/06 , F04B49/02
摘要： Systems and methods for controlling an electrical drive such as is used with electric submersible pumps used in downhole oil production, wherein the drive automatically determines the proper phasing to drive the pump motor in a forward direction. In one embodiment, a method includes generating a drive signal having an initial phasing and driving the pump to establish a column of fluid in the borehole. The drive signal is then discontinued, allowing the column of fluid to fall through the pump and cause the pump to backspin and generate a signal having phasing corresponding to the reverse rotational direction. The forward phasing is then determined to be the opposite of the phasing corresponding to the reverse rotational direction. The pump can be restarted in the forward direction, or an operator can be notified of the proper phasing to produce forward rotation of the pump.
摘要翻译：用于控制电驱动的系统和方法，例如用于井下油生产中的电潜泵，其中驱动装置自动确定适当的定相以沿正向驱动泵马达。在一个实施例中，一种方法包括产生具有初始定相的驱动信号并驱动泵以在钻孔中建立一列流体。然后停止驱动信号，允许流体列通过泵落下并使泵反向旋转并产生具有与反向旋转方向对应的定相的信号。然后将正向定相确定为与反向旋转方向对应的定相的相反。泵可以向前方向重新启动，或者可以向操作者通知正确的定相以产生泵的正向旋转。

4. 发明授权

US08287246B2 Systems and methods for automatic forward phasing determination in a downhole pump system 有权
标题翻译：井下泵系统中自动正相确定的系统和方法
公开(公告)号：US08287246B2
公开(公告)日：2012-10-16
申请号：US12537154
申请日：2009-08-06
申请人： Sheldon Plitt , Jerald R. Rider , Dick L. Knox , William Carter, Jr.
发明人： Sheldon Plitt , Jerald R. Rider , Dick L. Knox , William Carter, Jr.
IPC分类号： F04B49/06
CPC分类号： F04B47/06 , F04B49/02
摘要： Systems and methods for controlling an electrical drive such as is used with electric submersible pumps used in downhole oil production, wherein the drive automatically determines the proper phasing to drive the pump motor in a forward direction. In one embodiment, a method includes generating a drive signal having an initial phasing and driving the pump to establish a column of fluid in the borehole. The drive signal is then discontinued, allowing the column of fluid to fall through the pump and cause the pump to backspin and generate a signal having phasing corresponding to the reverse rotational direction. The forward phasing is then determined to be the opposite of the phasing corresponding to the reverse rotational direction. The pump can be restarted in the forward direction, or an operator can be notified of the proper phasing to produce forward rotation of the pump.
摘要翻译：用于控制电驱动的系统和方法，例如用于井下油生产中的电潜泵，其中驱动装置自动确定适当的定相以沿正向驱动泵马达。在一个实施例中，一种方法包括产生具有初始定相的驱动信号并驱动泵以在钻孔中建立一列流体。然后停止驱动信号，允许流体列通过泵落下并使泵反向旋转并产生具有与反向旋转方向对应的定相的信号。然后将正向定相确定为与反向旋转方向对应的定相的相反。泵可以向前方向重新启动，或者可以向操作者通知正确的定相以产生泵的正向旋转。

5. 发明授权

US08334666B2 Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly 有权
标题翻译：设备，计算机程序产品和计算机实现的电潜水泵组件中的后旋检测方法
公开(公告)号：US08334666B2
公开(公告)日：2012-12-18
申请号：US12869443
申请日：2010-08-26
申请人： Sheldon Plitt , John M. Leuthen
发明人： Sheldon Plitt , John M. Leuthen
IPC分类号： G01R31/02 , H02H3/04 , H02K11/00
CPC分类号： E21B47/0007 , H02P3/00
摘要： A system for detecting a backspin condition of a motor in an electrical submersible pump is described herein. The system comprises a variable speed drive for powering the motor via a power cable; and a controller, the controller having a memory, a computer processor, and a computer program product stored on the memory and executable by the processor. The computer program product comprises the instructions of: monitoring an input current or impedance on the power cable to determine changes in motor current impedance, comparing changes in the motor current impedance to a historical threshold value for backspin events to determine whether the motor is backspinning; impeding operable power to the motor when it is determined the motor is backspinning; supplying a low AC voltage to the motor after it is determined the motor is backspinning; and determining whether or not the motor has stopped backspinning by monitoring the low AC voltage.
摘要翻译：这里描述了用于检测电潜泵中的电动机的回旋状态的系统。该系统包括用于通过电力电缆为马达供电的变速驱动器; 以及控制器，所述控制器具有存储器，计算机处理器和存储在所述存储器上并可由所述处理器执行的计算机程序产品。计算机程序产品包括以下指令：监测电力电缆上的输入电流或阻抗，以确定电动机电流阻抗的变化，将电动机电流阻抗的变化与逆旋事件的历史阈值进行比较，以确定电动机是否反向旋转; 当确定电动机是后退时，阻碍对电动机的可操作的动力; 确定电动机后退后，向电动机提供低交流电压; 以及通过监视低交流电压来确定电动机是否已经停止反向旋转。

6. 发明申请

US20110050145A1 Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly 有权
标题翻译：设备，计算机程序产品和计算机实现的电潜泵组件中反跳探测方法
公开(公告)号：US20110050145A1
公开(公告)日：2011-03-03
申请号：US12869443
申请日：2010-08-26
申请人： Sheldon Plitt , John M. Leuthen
发明人： Sheldon Plitt , John M. Leuthen
IPC分类号： H02H7/097
CPC分类号： E21B47/0007 , H02P3/00
摘要： A system for detecting a backspin condition of a motor in an electrical submersible pump is described herein. The system comprises a variable speed drive for powering the motor via a power cable; and a controller, the controller having a memory, a computer processor, and a computer program product stored on the memory and executable by the processor. The computer program product comprises the instructions of: monitoring an input current or impedance on the power cable to determine changes in motor current impedance, comparing changes in the motor current impedance to a historical threshold value for backspin events to determine whether the motor is backspinning; impeding operable power to the motor when it is determined the motor is backspinning; supplying a low AC voltage to the motor after it is determined the motor is backspinning; and determining whether or not the motor has stopped backspinning by monitoring the low AC voltage.
摘要翻译：这里描述了用于检测电潜泵中的电动机的回旋状态的系统。该系统包括用于通过电力电缆为马达供电的变速驱动器; 以及控制器，所述控制器具有存储器，计算机处理器和存储在所述存储器上并可由所述处理器执行的计算机程序产品。计算机程序产品包括以下指令：监测电力电缆上的输入电流或阻抗，以确定电动机电流阻抗的变化，将电动机电流阻抗的变化与逆旋事件的历史阈值进行比较，以确定电动机是否反向旋转; 当确定电动机是后退时，阻碍对电动机的可操作的动力; 确定电动机后退后，向电动机提供低交流电压; 以及通过监视低交流电压来确定电动机是否已经停止反向旋转。

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