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1. 发明授权

US08141646B2 Device and method for gas lock detection in an electrical submersible pump assembly 有权
标题翻译：电潜泵组件中气锁检测的装置和方法
公开(公告)号：US08141646B2
公开(公告)日：2012-03-27
申请号：US12486121
申请日：2009-06-17
申请人： Robert D. Allen , John Michael Leuthen , Dick L. Knox , Jerald R. Rider , Tom G. Yohanan , Brown L. Wilson , Bryan D. Schulze
发明人： Robert D. Allen , John Michael Leuthen , Dick L. Knox , Jerald R. Rider , Tom G. Yohanan , Brown L. Wilson , Bryan D. Schulze
IPC分类号： E21B43/00
CPC分类号： E21B43/128 , F04D9/001 , F04D13/10 , F04D15/0066 , F04D15/0088 , F04D15/0209
摘要： A device and method can detect, and also break, an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. To detect an occurrence of gas lock, an instantaneous value is monitored using a sensor. Then a controller compares the instantaneous value to a threshold value over a predetermined duration to thereby detect the occurrence of gas lock in the electrical submersible pump assembly. Sensors can include, for example, a differential pressure gauge, a pressure gage located in a pump stage located toward the inlet, a fluid temperature sensor located toward the discharge, a free gas detector located near the pump discharge, an electrical resistivity gage, a flow meter located within surface production tubing, and a vibration sensor attached to a tubing string to measure a vibration signature.
摘要翻译：一种装置和方法可以基于表面或井下数据来检测并破坏井下电潜泵组件中气锁的发生，而不需要操作员干预。为了检测气体锁定的发生，使用传感器来监视瞬时值。然后，控制器在预定持续时间内将瞬时值与阈值进行比较，从而检测电潜泵组件中的气锁的发生。传感器可以包括例如差压表，位于朝向入口的泵级中的压力表，位于排出口的流体温度传感器，位于泵排放附近的自由气体检测器，电阻率计，位于表面生产管道内的流量计，以及连接到油管柱以测量振动特征的振动传感器。

2. 发明申请

US20090250210A1 Device and Method For Gas Lock Detection In An Electrical Submersible Pump Assembly 有权
标题翻译：电潜泵组件中气锁检测的装置和方法
公开(公告)号：US20090250210A1
公开(公告)日：2009-10-08
申请号：US12486121
申请日：2009-06-17
申请人： Robert D. Allen , John Michael Leuthen , Dick L. Knox , Jerald R. Rider , Tom G. Yohanan , Brown L. Wilson , Bryan D. Schulze
发明人： Robert D. Allen , John Michael Leuthen , Dick L. Knox , Jerald R. Rider , Tom G. Yohanan , Brown L. Wilson , Bryan D. Schulze
IPC分类号： E21B43/12 , E21B47/00 , E21B43/00 , G06F19/00
CPC分类号： E21B43/128 , F04D9/001 , F04D13/10 , F04D15/0066 , F04D15/0088 , F04D15/0209
摘要： A device and method can detect, and also break, an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. To detect an occurrence of gas lock, an instantaneous value is monitored using a sensor. Then a controller compares the instantaneous value to a threshold value over a predetermined duration to thereby detect the occurrence of gas lock in the electrical submersible pump assembly. Sensors can include, for example, a differential pressure gauge, a pressure gage located in a pump stage located toward the inlet, a fluid temperature sensor located toward the discharge, a free gas detector located near the pump discharge, an electrical resistivity gage, a flow meter located within surface production tubing, and a vibration sensor attached to a tubing string to measure a vibration signature.
摘要翻译：一种装置和方法可以基于表面或井下数据来检测并破坏井下电潜泵组件中气锁的发生，而不需要操作员干预。为了检测气体锁定的发生，使用传感器来监视瞬时值。然后，控制器在预定持续时间内将瞬时值与阈值进行比较，从而检测电潜泵组件中的气锁的发生。传感器可以包括例如差压表，位于朝向入口的泵级中的压力表，位于排出口的流体温度传感器，位于泵排放附近的自由气体检测器，电阻率计，位于表面生产管道内的流量计，以及连接到油管柱以测量振动特征的振动传感器。

3. 发明授权

US07798215B2 Device, method and program product to automatically detect and break gas locks in an ESP 有权
标题翻译：自动检测和打破ESP中气闸的装置，方法和程序产品
公开(公告)号：US07798215B2
公开(公告)日：2010-09-21
申请号：US12144092
申请日：2008-06-23
申请人： John Michael Leuthen , Brown L. Wilson , Jerald R. Rider , Bryan D. Schulze
发明人： John Michael Leuthen , Brown L. Wilson , Jerald R. Rider , Bryan D. Schulze
IPC分类号： E21B43/00 , G05D7/00
CPC分类号： E21B43/128 , F04D9/001 , F04D15/0066 , F04D15/0088
摘要： A device, method, and program product detect and break an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. The system provides the ability to flush the pump and return the system back to production without requiring system shutdown. In addition, the system provides an algorithm for controlling a pump operating speed of the electrical submersible pump assembly to maximize production from the well bore.
摘要翻译：装置，方法和程序产品基于表面或井下数据检测并破坏井下电潜泵组件中气锁的发生，而不需要操作员干预。该系统提供冲洗泵并将系统返回到生产而不需要系统关闭的能力。此外，该系统提供了一种用于控制电潜泵组件的泵运行速度以最大化井眼产量的算法。

4. 发明申请

US20090000789A1 Device, Method And Program Product To Automatically Detect And Break Gas Locks In An ESP 有权
标题翻译：在ESP中自动检测和断开气锁的装置，方法和程序产品
公开(公告)号：US20090000789A1
公开(公告)日：2009-01-01
申请号：US12144092
申请日：2008-06-23
申请人： John Michael Leuthen , Brown L. Wilson , Jerald R. Rider , Bryan D. Schulze
发明人： John Michael Leuthen , Brown L. Wilson , Jerald R. Rider , Bryan D. Schulze
IPC分类号： E21B43/00 , G05D7/00
CPC分类号： E21B43/128 , F04D9/001 , F04D15/0066 , F04D15/0088
摘要： A device, method, and program product detect and break an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. The system provides the ability to flush the pump and return the system back to production without requiring system shutdown. In addition, the system provides an algorithm for controlling a pump operating speed of the electrical submersible pump assembly to maximize production from the well bore.
摘要翻译：装置，方法和程序产品基于表面或井下数据检测并破坏井下电潜泵组件中气锁的发生，而不需要操作员干预。该系统提供冲洗泵并将系统返回到生产而不需要系统关闭的能力。此外，该系统提供了一种用于控制电潜泵组件的泵运行速度以最大化井眼产量的算法。

5. 发明授权

US6043995A Method and apparatus for pulse width modulation of a power supply for increased transient stability in subsurface wellbore pumps 失效
标题翻译：用于电源的脉宽调制的方法和装置，用于增加地下井筒泵的瞬态稳定性
公开(公告)号：US6043995A
公开(公告)日：2000-03-28
申请号：US149916
申请日：1998-09-09
申请人： John Michael Leuthen
发明人： John Michael Leuthen
IPC分类号： E21B43/12 , H02M5/458 , H02M5/45
CPC分类号： E21B43/128 , H02M5/4585
摘要： A variable speed controller is provided which utilizes a combination of pulse width modulation and fixed pulse control, such as a conventional six-step control, in order to generate multiphase sinusoidal power signals for use by downhole wellbore equipment, such as electrical submersible pumps. A controller is utilized to monitor at least one DC voltage level of the rectifier and/or inverter circuit of a variable speed controller. The DC level is compared to an optimum DC level. A triggering threshold is established. Once the triggering threshold is surpassed, the controller is utilized to switch between a conventional six-step mode of control and a pulse width modulation mode of control in order to better respond to a positive transient voltage condition. The pulse width modulation mode of operation provides for real time counteracting of the positive transient condition. Once the controller determines that the transient condition has subsided, control is returned to the conventional six-step control mode of operation.
摘要翻译：提供了一种变速控制器，其利用诸如常规六步控制的脉冲宽度调制和固定脉冲控制的组合，以产生多相正弦功率信号，以供井下井眼设备（例如电潜泵）使用。控制器用于监视变速控制器的整流器和/或逆变器电路的至少一个直流电压电平。将DC电平与最佳DC电平进行比较。建立触发阈值。一旦超过了触发阈值，则控制器被用于在传统的六步控制模式和脉冲宽度调制模式之间进行切换，以便更好地响应正瞬态电压条件。脉冲宽度调制方式提供了正瞬态的实时反应。一旦控制器确定瞬态条件已经消退，则控制返回到常规的六步控制操作模式。

6. 发明授权

US07040391B2 Low harmonic diode clamped converter/inverter 有权
标题翻译：低谐波二极管钳位转换器/逆变器
公开(公告)号：US07040391B2
公开(公告)日：2006-05-09
申请号：US10610438
申请日：2003-06-30
申请人： John Michael Leuthen , Fang Zheng Peng
发明人： John Michael Leuthen , Fang Zheng Peng
IPC分类号： E21B43/00
CPC分类号： H02M7/483 , H02M5/4585 , H02M7/487 , H02P27/14
摘要： First and second networks of switching devices, each of which are an insulated gate bipolar transistor with an intrinsic reverse-biased clamping diode, are controlled to selectively connect a sinusoidal input voltage and an output to different nodes within a series of capacitors during different portions of input and output voltage cycles to produce a stepped sinusoidal output voltage. The topology requires a low part count, produces relatively low harmonics without filtering when powering artificial lift equipment within a borehole, and scales up to medium voltages without a step-up transformer. During variable speed operation of the lift equipment, optimized switching angles for controlling the switching devices during the voltage cycles may be selected based on modulation producing the desired speed and phase measurements.
摘要翻译：开关器件的第一和第二网络，其中每一个都是具有本征反向偏置钳位二极管的绝缘栅双极晶体管，被控制为在不同部分的不同部分期间将正弦输入电压和输出选择性地连接到一系列电容器内的不同节点输入和输出电压周期，以产生阶梯式正弦输出电压。拓扑结构需要较低的零件数量，在为钻孔内的人造电梯设备供电时不产生过滤，产生相对较低的谐波，而在没有升压变压器的情况下可扩展到中等电压。在电梯设备的变速操作期间，可以基于产生所需速度和相位测量的调制来选择用于在电压循环期间控制开关装置的优化开关角度。

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