公开(公告)号：US08480376B2

公开(公告)日：2013-07-09

申请号：US12869409

申请日：2010-08-26

Applicant: Dick L Knox ,  Jerald R Rider ,  Robert D Allen ,  William Carter ,  Robert H McCoy

Inventor： Dick L Knox ,  Jerald R Rider ,  Robert D Allen ,  William Carter ,  Robert H McCoy

IPC: F04B49/00

CPC classification number: E21B47/0007 ,  H02P3/00

Abstract: A system for determining whether a motor in an electrical submersible pump is backspinning is described herein. The system comprises a sensor mounted in a well bore proximate to a ground surface, the sensor outputting a backspin signal; a communication link connected to the sensor, the communications link communicating the backspin signal; and a controller receiving the backspin signal from the communications link and processing the backspin signal to determine whether the motor is backspinning. Computer readable instructions associated with the system perform the steps of: monitoring the signal to determine whether the signal is above a threshold, the threshold for determining whether the signal is a noise signal or a backspin signal, and outputting the backspin signal; impeding operable AC power to the motor, responsive to the backspin signal; monitoring the backspin signal to determine whether the backspin signal is below the threshold; and returning AC power to the motor responsive to the determination that the backspin signal is below the threshold.

Abstract translation: 这里描述了一种用于确定电动潜水泵中的电动机是否是回旋的系统。 该系统包括安装在靠近地面的井眼中的传感器，该传感器输出反旋转信号; 连接到所述传感器的通信链路，所述通信链路通信所述反向旋转信号; 以及控制器，从所述通信链路接收所述反向旋转信号，并处理所述反向旋转信号，以确定所述电动机是否回转。 与系统相关联的计算机可读指令执行以下步骤：监视信号以确定信号是否高于阈值，用于确定信号是噪声信号还是反旋信号的阈值，以及输出反旋信号; 响应于所述反转信号阻碍对所述电动机的可操作的交流电力; 监测反向旋转信号以确定反旋信号是否低于阈值; 并且响应于所述反旋转信号低于所述阈值的确定，将AC电力返回到所述电动机。

公开(公告)号：US08314583B2

公开(公告)日：2012-11-20

申请号：US12400405

申请日：2009-03-09

Applicant: Tom G. Yohanan ,  Dick L. Knox ,  John M. Leuthen ,  Jim E. Layton ,  Howard G. Thompson

Inventor： Tom G. Yohanan ,  Dick L. Knox ,  John M. Leuthen ,  Jim E. Layton ,  Howard G. Thompson

IPC: H02P7/00

CPC classification number: E21B43/128 ,  H02P23/08 ,  H02P27/047

Abstract: An electrical submersible pumping (ESP) system can include a pump located in a wellbore, a motor attached to the pump, a power source located at the surface, a cable electrically coupling the power source and the motor, and a current sensor. The ESP system can also include a controller communicating with the current sensor to calculate a voltage drop associated with the cable responsive to an impedance of the cable. The controller can also control a power source output voltage responsive to the calculated voltage drop. For example, the controller can adjust the power source output voltage to minimize a cable current while maintaining a minimum motor voltage. The controller can also control a motor shaft speed by changing a power source output voltage frequency to compensate for changing slip and adjust the power source output voltage to minimize the cable current while maintaining a minimum motor voltage.

Abstract translation: 电潜泵（ESP）系统可以包括位于井眼中的泵，连接到泵的马达，位于表面的动力源，电耦合电源和马达的电缆以及电流传感器。 ESP系统还可以包括与当前传感器通信的控制器，以响应于电缆的阻抗来计算与电缆相关联的电压降。 控制器还可以响应于所计算的电压降来控制电源输出电压。 例如，控制器可以调节电源输出电压以最小化电缆电流，同时保持最小的电机电压。 控制器还可以通过改变电源输出电压频率来控制电机轴转速，以补偿变更滑差，并调整电源输出电压，以尽量减少电缆电流，同时保持最小的电机电压。

公开(公告)号：US08287246B2

公开(公告)日：2012-10-16

申请号：US12537154

申请日：2009-08-06

Applicant: Sheldon Plitt ,  Jerald R. Rider ,  Dick L. Knox ,  William Carter, Jr.

Inventor： Sheldon Plitt ,  Jerald R. Rider ,  Dick L. Knox ,  William Carter, Jr.

IPC: F04B49/06

CPC classification number: F04B47/06 ,  F04B49/02

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090250210A1

公开(公告)日：2009-10-08

申请号：US12486121

申请日：2009-06-17

Applicant: Robert D. Allen ,  John Michael Leuthen ,  Dick L. Knox ,  Jerald R. Rider ,  Tom G. Yohanan ,  Brown L. Wilson ,  Bryan D. Schulze

Inventor： Robert D. Allen ,  John Michael Leuthen ,  Dick L. Knox ,  Jerald R. Rider ,  Tom G. Yohanan ,  Brown L. Wilson ,  Bryan D. Schulze

IPC: E21B43/12 ,  E21B47/00 ,  E21B43/00 ,  G06F19/00

CPC classification number: E21B43/128 ,  F04D9/001 ,  F04D13/10 ,  F04D15/0066 ,  F04D15/0088 ,  F04D15/0209

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07188669B2

公开(公告)日：2007-03-13

申请号：US10965019

申请日：2004-10-14

Applicant: Aaron Duane Bullock ,  Dick L. Knox

Inventor： Aaron Duane Bullock ,  Dick L. Knox

IPC: E21B43/00

CPC classification number: E21B43/128

Abstract: A motor cooler for an electrical submersible pump (ESP). The ESP is typically deployed within casing and defines an annular space between the ESP and the casing. The ESP includes a pump having an intake, a motor cooler pump having an output port, a seal section below the motor cooler pump, and a motor located below a well inlet. Fluid is directed downwardly from the motor cooler pump output port to cool the motor. In one example, a shroud directs fluid received from the motor cooler pump output port downwardly past the motor and back up an outside of the shroud. In another example, longitudinal ribs direct flow in an annular space between the ESP and the casing. Fluid from the motor cooler pump output port is directed downwardly between adjacent ribs over a surface of the motor and then back up between another pair of ribs.

Abstract translation: 用于电潜泵（ESP）的电机冷却器。 ESP通常部署在壳体内并且在ESP和壳体之间限定环形空间。 ESP包括具有进气口的泵，具有输出端口的电动机冷却器泵，电动机冷却器泵下方的密封部分和位于井口下方的电动机。 流体从电机冷却器泵输出端口向下引导，以冷却电机。 在一个示例中，护罩将从电动机冷却器泵输出端口接收的流体向下引导通过电动机并且将其备用到护罩的外部。 在另一个示例中，纵向肋条在ESP和壳体之间的环形空间中直接流动。 来自电动机冷却器泵输出端口的流体在电动机的表面上相邻的肋之间向下指向，然后在另一对肋之间备用。

公开(公告)号：US08400093B2

公开(公告)日：2013-03-19

申请号：US12869368

申请日：2010-08-26

Applicant: Dick L. Knox ,  Robert H. McCoy ,  Jerald R. Rider

Inventor： Dick L. Knox ,  Robert H. McCoy ,  Jerald R. Rider

IPC: H02H7/097

CPC classification number: E21B47/0007 ,  H02P3/00

Abstract: A system for detecting a backspin condition of a motor in an electrical submersible pump is disclosed herein. The system comprises a sensor mounted proximate to the motor, the sensor outputting a signal, a power cable connected between a motor and a controller, the power cable supplying a three phase AC voltage to the motor, one phase of the three phase signal having a control signal thereon; electronics connected to the sensor, the electronics receiving the signal and propagating the signal to the controller; and a computer defining the controller, the controller having a non-transitory memory, a computer processor, and a computer program product stored on the memory and executable by the processor, the computer program product performing a process of controlling the variable speed drive of the motor and a process of monitoring the signal from the sensor to determine if the motor is backspinning.

Abstract translation: 本文公开了一种用于检测电潜泵中的电动机的回旋状态的系统。 该系统包括靠近电动机安装的传感器，输出信号的传感器，连接在电动机和控制器之间的电力电缆，向电动机提供三相交流电压的电力电缆，三相信号的一相具有 控制信号; 电子设备连接到传感器，电子设备接收信号并将信号传播到控制器; 以及定义所述控制器的计算机，所述控制器具有非暂时性存储器，计算机处理器和存储在所述存储器上并由所述处理器执行的计算机程序产品，所述计算机程序产品执行控制所述控制器的变速驱动器 电机和监测来自传感器的信号的过程，以确定电机是否旋转。

公开(公告)号：US08328529B2

公开(公告)日：2012-12-11

申请号：US12362557

申请日：2009-01-30

Applicant: Joseph Scott Thompson ,  Kevin R. Bierig ,  Robert H. McCoy ,  Gordon Lee Besser ,  Dick L. Knox ,  Joo Tim Ong ,  Suresha R. O'Bryan ,  Dustin B. Campbell

Inventor： Joseph Scott Thompson ,  Kevin R. Bierig ,  Robert H. McCoy ,  Gordon Lee Besser ,  Dick L. Knox ,  Joo Tim Ong ,  Suresha R. O'Bryan ,  Dustin B. Campbell

IPC: F04B49/00

CPC classification number: E21B43/128

Abstract: An electrical submersible pump assembly has a pump discharge head with an integrally formed pump discharge pressure port. The discharge head is mounted directly to the pump and couples the pump to production tubing. A static pressure port extends directly through the side wall of the discharge head. The pressure port includes a tubing connector for hydraulic tubing to run down to the gauge. Inside the discharge head, a flow limiter is located in the pressure port to stop the loss of fluid if there is a break in the tubing connector or hydraulic line. Alternatively, the discharge head may incorporate a venturi or other pressure drop structure to allow the fluid flow to be measured via a pressure drop across an orifice. The venturi may be configured as an insert to permit it to be replaced after it has become worn by abrasive flow.

Abstract translation: 电潜泵组件具有泵排出头，其具有整体形成的泵排出压力端口。 排放头直接安装在泵上，并将泵连接到生产管道上。 静压口直接延伸通过排放头的侧壁。 压力端口包括用于液压管道的管道连接器，以向下运行到量规。 在排放头内部，流量限制器位于压力端口，以便在管道连接器或液压管路中断开时停止流体损失。 或者，排放头可以包括文丘里管或其它压降结构，以允许经由孔口的压降来测量流体流动。 文丘里管可以被配置为插入件，以允许其在磨损流动之后被更换。

公开(公告)号：US08138622B2

公开(公告)日：2012-03-20

申请号：US11779768

申请日：2007-07-18

Applicant: James E. Layton ,  Dick L. Knox ,  Gordon L. Besser

Inventor： James E. Layton ,  Dick L. Knox ,  Gordon L. Besser

IPC: H02J3/02 ,  H02J3/34

CPC classification number: G01V11/002 ,  Y10T307/398

Abstract: Borehole instruments are powered by AC instrument power transmitted on all three phases of a power cable concurrently carrying three phase motor power, the instrument power transmitted at a multiple of the motor power frequency and having a corresponding fraction of the motor power voltage, and received via a capacitive coupling sufficient to withstand high-voltage cable insulation testing. The phase-to-neutral motor power provides approximately the same power level to the borehole instruments if a phase shorts to ground.

Abstract translation: 钻孔仪器由交流仪器功率供电，电力电缆的所有三相传输，同时承载三相电机功率，仪器功率以电机功率频率的倍数传输，并具有相应的电机功率电压分数，并通过 电容耦合足以承受高压电缆绝缘测试。 如果相位短路到地，则相到中性电机功率向钻孔仪器提供大致相同的功率水平。

公开(公告)号：US07607896B2

公开(公告)日：2009-10-27

申请号：US11463836

申请日：2006-08-10

Applicant: John M. Leuthen ,  Dick L. Knox ,  Tom G. Yohanan ,  Jerald R. Rider

Inventor： John M. Leuthen ,  Dick L. Knox ,  Tom G. Yohanan ,  Jerald R. Rider

IPC: F04B49/06

CPC classification number: H02H7/1222

Abstract: Systems and methods for providing ride-through for interruptions in the power supplied to drives that are used to control equipment such as downhole submersible pumps. In one embodiment, a variable speed drive includes converter and inverter sections, a capacitor bank and a control system. The drive shuts down the converter section upon detecting a disruption in the AC input power and continues to generate output power by drawing on the energy stored in the capacitor bank. When the AC input power returns (or begins to return) to normal, the drive resumes operation of the converter section in a controlled manner (e.g., by presetting the firing angle of the SCR's in the converter to match the voltage across the capacitor bank.) The drive thereby limits the current that recharges the capacitor bank and prevents sudden inrushes of current that could damage the drive.

Abstract translation: 用于提供传递中断功能的系统和方法，用于提供给用于控制诸如井下潜水泵的设备的驱动器。 在一个实施例中，变速驱动器包括转换器和逆变器部分，电容器组和控制系统。 检测到AC输入功率中断后，驱动器关闭转换器部分，并通过利用存储在电容器组中的能量继续产生输出功率。 当交流输入电源返回（或开始返回）正常时，驱动器以受控的方式恢复转换器部分的操作（例如，通过预设转换器中SCR的触发角度来匹配电容器组两端的电压。 ）驱动器因此限制了对电容器组进行充电的电流，并防止可能损坏驱动器的电流突然损坏。

公开(公告)号：US20090196774A1

公开(公告)日：2009-08-06

申请号：US12362557

申请日：2009-01-30

Applicant: Joseph Scott Thompson ,  Kevin R. Bierig ,  Robert H. McCoy ,  Gordon Lee Besser ,  Dick L. Knox ,  Joo Tim Ong ,  Suresha R. O'Bryan ,  Dustin B. Campbell

Inventor： Joseph Scott Thompson ,  Kevin R. Bierig ,  Robert H. McCoy ,  Gordon Lee Besser ,  Dick L. Knox ,  Joo Tim Ong ,  Suresha R. O'Bryan ,  Dustin B. Campbell

IPC: F04B53/16 ,  E21B47/00 ,  F04B47/06

CPC classification number: E21B43/128

Abstract: An electrical submersible pump assembly has a pump discharge head with an integrally formed pump discharge pressure port. The discharge head is mounted directly to the pump and couples the pump to production tubing. A static pressure port extends directly through the side wall of the discharge head. The pressure port includes a tubing connector for hydraulic tubing to run down to the guage. Inside the discharge head, a flow limiter is located in the pressure port to stop the loss of fluid if there is a break in the tubing connector or hydraulic line. Alternatively, the discharge head may incorporate a venturi or other pressure drop structure to allow the fluid flow to be measured via a pressure drop across an orifice. The venturi may be configured as an insert to permit it to be replaced after it has become worn by abrasive flow.

Abstract translation: 电潜泵组件具有泵排出头，其具有整体形成的泵排出压力端口。 排放头直接安装在泵上，并将泵连接到生产管道上。 静压口直接延伸通过排放头的侧壁。 压力端口包括用于液压管道的管道连接器以向下运行。 在排放头内部，流量限制器位于压力端口，以便在管道连接器或液压管路中断开时停止流体损失。 或者，排放头可以包括文丘里管或其它压降结构，以允许经由孔口的压降来测量流体流量。 文丘里管可以被配置为插入件，以允许其在磨损流动之后被更换。