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公开(公告)号：US4928771A
公开(公告)日：1990-05-29
申请号：US385208
申请日：1989-07-25
申请人： Joseph E. Vandevier
发明人： Joseph E. Vandevier
CPC分类号： H02K17/30 , E21B17/206 , E21B23/02 , E21B43/128 , F04D13/08 , H02K11/40 , H02K5/132 , H02K5/225
摘要： A centrifugal pump is lowered into a well and retrieved from the well by means of its power cable. The power cable has a single conductor. The pump has a downhole electrical motor which is three-phase. Single-phase AC power will be supplied from the surface down the conductor, with the return being the casing. A phase converter converts the single-phase AC power to three-phase AC power downhole for driving the pump motor.
摘要翻译： 将离心泵放入井中并通过其电力电缆从井中取出。 电源线有一根导线。 泵具有三相的井下电动机。 单相交流电源将从导体的表面向导体提供，返回为外壳。 相位转换器将单相交流电转换为井下三相交流电源，以驱动泵电动机。
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公开(公告)号：US4901070A
公开(公告)日：1990-02-13
申请号：US385223
申请日：1989-07-25
申请人： Joseph E. Vandevier
发明人： Joseph E. Vandevier
IPC分类号： E21B43/12 , E21B47/06 , F04D15/00 , G01L9/04 , G01L19/08 , G01R31/34 , H02K11/00 , H02K17/30
CPC分类号： H02K17/30 , E21B43/128 , E21B47/06 , E21B47/065 , F04D15/0088 , G01L19/086 , G01L9/04 , G01R31/343 , H02K11/25
摘要： An electric submersible pump system has a pressure monitoring device for monitoring the pressure down the hole. The pressure monitoring device has a pressure transducer whose resistance varies with the pressure. The pressure transducer is connected to ground and is supplied with a DC current that is superimposed on the AC power cable. A temperature switch is connected between the pressure transducer and the motor winding. The temperature switch is normally open, and closes when it reaches a selected temperature. The temperature is selected to be above the ambient temperature in the well and below the temperature that occurs when the motor is operating and fully warmed up. The temperature switch isolates the windings from ground when the motor is shut off and cooled down. This enables the motor winding and power cable to be checked for insulation resistance.
摘要翻译： 电潜泵系统具有用于监测井下压力的压力监测装置。 压力监测装置具有压力传感器，其压力随压力而变化。 压力传感器连接到地面，并提供叠加在交流电源线上的直流电流。 温度开关连接在压力传感器和电机绕组之间。 温度开关常开，当达到选定温度时关闭。 温度选择为高于井中的环境温度，并低于电机运行和完全预热时发生的温度。 当电机关闭并冷却时，温度开关将绕组与接地隔离。 这样可以检查电机绕组和电源线的绝缘电阻。
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3.发明授权Energizing circuit for providing low voltage starting for submersible pump motor 失效为潜水泵电机提供低电压起动的励磁电路
公开(公告)号：US4330740A
公开(公告)日：1982-05-18
申请号：US79852
申请日：1979-09-28
CPC分类号： H02P1/28
摘要： Low voltage starting of a three-phase submersible pump motor in a shallow well is achieved by employing a high-impedance transformer for supplying the three-phase power to the motor. Upon starting, the normally heavy current drawn by the motor results in a voltage drop through the high-impedance transformer sufficient to substantially lower the voltage across the motor and hence the starting current. In the absence of limiting the starting current, abnormally high starting torques will be produced on the motor shaft resulting in mechanical fatigue and eventually shaft breakage.
摘要翻译： 通过采用高阻抗变压器将三相电力供应给电动机，可以实现浅井中三相潜水泵电动机的低压起动。 起动时，由电动机引起的通常的大电流导致通过高阻抗变压器的电压降足以大大降低电动机两端的电压，从而使启动电流下降。 在不限制起动电流的情况下，马达轴上产生异常高的起动转矩，导致机械疲劳并最终导致轴断裂。
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公开(公告)号：US07401655B2
公开(公告)日：2008-07-22
申请号：US11180925
申请日：2005-07-07
IPC分类号： E21B43/00
CPC分类号： E21B43/121 , E21B43/128 , E21B47/0007
摘要： A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The operator computes a frictional pressure drop due to friction of the gas flowing through the production tubing to the surface. A packer is set above perforations in the well. A screw pump is selected that has a capacity equal to the sum of the frictional pressure drop plus a desired wellhead pressure. The screw pump has a flow rate capacity determined from the P-Q curve. The operator may vary the frequency of a downhole motor to achieve the desired wellhead pressure.
摘要翻译： 从低压井生产气体的方法包括进行底孔压力试验以绘制P-Q曲线。 操作员计算由于流过生产管道的气体与表面的摩擦而产生的摩擦压降。 封隔器设置在井的穿孔之上。 选择螺杆泵，其具有等于摩擦压降加上所需井口压力之和的能力。 螺杆泵具有从P-Q曲线确定的流量容量。 操作人员可以改变井下电机的频率以达到所需的井口压力。
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5.发明授权公开(公告)号：US06691782B2
公开(公告)日：2004-02-17
申请号：US10058659
申请日：2002-01-28
申请人： Joseph E. Vandevier
发明人： Joseph E. Vandevier
IPC分类号： E21B4338
CPC分类号： E21B43/121 , E21B43/38
摘要： A method and system for downhole treatment and pumping of well fluids enhances the pumping of viscous fluids to the surface. The first step is to separate the oil and water from the well fluid and then channel the oil to a chamber that encloses the motor. The heat from the motor will increase the heat of the crude oil flowing past the motor, thereby lowering the viscosity of the crude oil. The water flows separately past the motor in another passageway, and remixes with the oil. After the oil and water recombine, the treated well fluid has a lower viscosity, and the fluid is then pumped to the surface more efficiently than without treating the oil.
摘要翻译： 用于钻井液井下处理和泵送的方法和系统增强了将粘性流体泵送到地面。 第一步是将油和水与井液分离，然后将油引导到封闭马达的腔室。 来自马达的热量将增加流经马达的原油的热量，从而降低原油的粘度。 水在另一个通道中分开通过电机，并与油混合。 在油和水复合后，处理后的井液具有较低的粘度，然后将流体比不处理油更有效地泵送到地面。
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公开(公告)号：US4749034A
公开(公告)日：1988-06-07
申请号：US67521
申请日：1987-06-26
IPC分类号： E21B43/12
CPC分类号： E21B43/128
摘要： A well pump assembly has a tube extending into the well for delivering water to a point below the pump to reduce the viscosity of the oil being pumped. The downhole motor that drives the pump is surrounded by a jacket. The tube that delivers the water extends to a point below the jacket to a cross-over member mounted to the lower end of the jacket, which directs the water upward and inward. The cross-over member also has passages that directs the production fluid upward and outward.
摘要翻译： 井泵组件具有延伸到井中的管，用于将水输送到泵下方的点以降低被泵送的油的粘度。 驱动泵的井下电机被夹套包围。 输送水的管延伸到护套下方的一点，安装到护套的下端的交叉构件，其将水向上和向内引导。 交叉构件还具有向上和向外引导生产流体的通道。
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公开(公告)号：US4000446A
公开(公告)日：1976-12-28
申请号：US583717
申请日：1975-06-04
CPC分类号： H02H7/085 , H02H3/0935
摘要： Overload protection of a three-phase submersible pump motor, such as the type used downhole in an oil well, is obtained with a solid state digital logic control system that monitors each of the three phase currents and shuts the pump motor down if any of those phase currents indicates an overload condition. A time delay is introduced before shutdown to avoid undesired nuisance shutdowns otherwise caused by transient or momentary conditions. The shutdown time delay is variable and is inversely proportional to the amount of overload in order that greater overloads result in faster shutdowns.
摘要翻译： 使用固态数字逻辑控制系统获得三相潜水泵电机的过载保护，例如在油井中使用的井下型号，其中监控三相电流中的每一个，并将泵电机向下关闭，如果有的话 相电流表示过载状态。 在关机之前引入时间延迟，以避免由短暂或瞬时条件引起的不必要的烦扰关闭。 关机时间延迟是可变的，并且与过载量成反比，以便更大的过载导致更快的关机。
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公开(公告)号：US4678404A
公开(公告)日：1987-07-07
申请号：US822358
申请日：1986-01-24
CPC分类号： F04D15/0066 , Y10S415/901
摘要： A low volume submersible pump assembly has features to stabilize the operation. The pump assembly includes a centrifugal pump driven by a submerged electrical motor. The centrifugal pump has an impeller configuration that is designed for high specific head, but potentially unstable operation. At the design speed, the pump potentially could deliver an indeterminate flow rate for a given head. Also, at the design speed, the design flow rate will yield a design head that is very close to the maximum head at zero flow. The pump has the characteristic of requiring a significant increase in torque to produce higher flow rates. To stabilize the potentially unstable pump, a variable speed drive varies the speed of the motor to maintain constant torque. Maintaining a constant torque allows a considerable variance in head with only a small variance in flow rate resulting.
摘要翻译： 低体积潜水泵组件具有稳定操作的特征。 泵组件包括由浸没式电动机驱动的离心泵。 离心泵具有叶轮结构，其设计用于高特定头部，但是操作可能不稳定。 在设计速度下，泵可能为给定的头部提供不确定的流量。 另外，在设计速度下，设计流量将产生非常接近零流量最大头部的设计头。 该泵具有要求显着提高扭矩以产生较高流速的特性。 为了稳定潜在不稳定的泵，变速驱动器改变电机的速度以保持恒定的转矩。 保持恒定的扭矩允许在头部有相当大的变化，只有微小的流量差异导致。
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9.发明授权Impressed current cathodic protection system for submersible downhole pumping assembly 失效潜水电流阴极保护系统，用于潜水井下泵组件
公开(公告)号：US4211625A
公开(公告)日：1980-07-08
申请号：US941629
申请日：1978-09-11
摘要： Cathodic protection of a deep well submersible pumping assembly against the corrosive effect of electrolysis is achieved by providing a DC voltage source at the downhole pumping assembly, the negative terminal of the source being electrically connected to the metal surfaces which are in contact with the well fluid while the source's positive terminal is electrically connected to a sacrificial anode submerged in the well fluid. Current flows from the anode to the metal surfaces to reverse the process of electron flow caused by the electrolytic corrosion, thereby inhibiting the corrosion process on the metal surfaces. In effect, the corrosion is transferred to the sacrificial anode.
摘要翻译： 通过在井下泵送组件处提供直流电压源来实现深井潜水泵装置的阴极保护，以抵抗电解的腐蚀作用，源的负极电连接到与井流体接触的金属表面 而源的正极端子电连接到浸没在井流体中的牺牲阳极。 电流从阳极流向金属表面，以逆转由电解腐蚀引起的电子流动过程，从而抑制金属表面的腐蚀过程。 实际上，腐蚀被转移到牺牲阳极。
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公开(公告)号：US07644770B2
公开(公告)日：2010-01-12
申请号：US12176666
申请日：2008-07-21
IPC分类号： E21B43/00
CPC分类号： E21B43/121 , E21B43/128 , E21B47/0007
摘要： A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The operator computes a frictional pressure drop due to friction of the gas flowing through the production tubing to the surface. A packer is set above perforations in the well. A screw pump is selected that has a capacity equal to the sum of the frictional pressure drop plus a desired wellhead pressure. The screw pump has a flow rate capacity determined from the P-Q curve. The operator may vary the frequency of a downhole motor to achieve the desired wellhead pressure.
摘要翻译： 从低压井生产气体的方法包括进行底孔压力试验以绘制P-Q曲线。 操作员计算由于流过生产管道的气体与表面的摩擦而产生的摩擦压降。 封隔器设置在井的穿孔之上。 选择螺杆泵，其具有等于摩擦压降加上所需井口压力之和的能力。 螺杆泵具有从P-Q曲线确定的流量容量。 操作人员可以改变井下电机的频率以达到所需的井口压力。
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