公开(公告)号：US20060169447A1

公开(公告)日：2006-08-03

申请号：US11386210

申请日：2006-03-22

Applicant: Mark Barnes ,  John Bergmann ,  Ken Booth ,  Alan Paine ,  Mike Guillotte ,  Gregg Hurst

Inventor： Mark Barnes ,  John Bergmann ,  Ken Booth ,  Alan Paine ,  Mike Guillotte ,  Gregg Hurst

IPC: E21B43/12

CPC classification number: F04B47/026 ,  F04B47/02 ,  F04B49/06 ,  F04B2201/121

Abstract: The present invention generally provides apparatus and methods of operating a pumping system. The pump control apparatus includes a first sensor for measuring strain on a structure of the well pumping system and a second sensor for measuring a position of the structure. The apparatus also has a controller configured to control the well unit by receiving output signals from the first and second sensors and generating control signals according to a motor control sequence. This controller may be mounted to the structure of the pumping system to measure the strain experienced by the structure. The control signals may be transmitted to a motor control panel using a cable-less communications system. Preferably, the first sensor, the second sensor, and the controller are integrated into a single unit. In another embodiment, the pump control apparatus may be self-powered.

公开(公告)号：US20060067834A1

公开(公告)日：2006-03-30

申请号：US11228109

申请日：2005-09-16

Applicant: Lemoyne Boyer ,  Doneil Dorado

Inventor： Lemoyne Boyer ,  Doneil Dorado

IPC: F04B49/06

CPC classification number: F04B49/065 ,  F04B47/02 ,  F04B2201/121 ,  F04B2203/0204 ,  F04B2203/0207 ,  F04B2203/0209

Abstract: Rod Float Mitigation (RFM) methods for rod-pumped oil wells having a variable frequency drive which controls the speed of the motor for the pump. Each method monitors rod loads or a similar condition and takes action only when rod load drops below a predefined minimum load. A first method reduces the speed of the motor to a preset level. A second method fixes the torque level on the pump downstroke by adjusting motor speed based on a calculated gearbox torque compared to a programmed fixed limit. Another method includes a program in the variable frequency drive which includes a preferred RFM Torque Curve for the pump to follow on its downstroke. When rod float occurs, the program monitors gearbox torque and adjusts the speed to follow the predetermined RFM Torque Curve thereby mitigating rod float with minimum decrease in production.

公开(公告)号：US12000262B2

公开(公告)日：2024-06-04

申请号：US17321424

申请日：2021-05-15

Applicant: Williams NR Automation LLC

Inventor： Jason Williams

IPC: E21B47/009 ,  E21B43/12 ,  F04B47/02 ,  F04B49/02 ,  F04B49/06

CPC classification number: E21B47/009 ,  E21B43/127 ,  F04B47/022 ,  F04B49/02 ,  F04B49/065 ,  F04B47/02 ,  F04B2201/0801 ,  F04B2201/12 ,  F04B2201/121 ,  F04B2203/02

Abstract: A rod-pump control device is disclosed. The rod-pump control device uses AMP (current) measurements for electric units, fuel or air usage for gas units, and can use pressure for either unit. The AMP/fuel/air sensors work as the primary trigger to indicate a pump-off condition on an oil and gas well. These sensors can be used as stand-alone triggers or in conjunction with other sensors to more accurately monitor pump efficiency. When the pump-controller starts to indicate an inefficient pump condition, it will turn the pump off by removing power from the electric motor. For gas powered units, the controller will remove power to disengage an electric clutch or send a signal to an engine controller to stop. An adjustable algorithm will use percentage change of off time, dependent on actual run time compared to a user definable target time to keep the pump operating at peak efficiency.

公开(公告)号：US20180347327A1

公开(公告)日：2018-12-06

申请号：US16059891

申请日：2018-08-09

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: E21B43/12 ,  F04B49/22 ,  F04B47/04 ,  F04B1/29 ,  F04B1/12 ,  F04B47/00 ,  E21B47/00 ,  F04B1/32 ,  F04B9/107 ,  F04B41/02 ,  F04B49/06 ,  F04B47/08

CPC classification number: E21B43/129 ,  E21B43/126 ,  E21B47/0007 ,  F04B1/12 ,  F04B1/295 ,  F04B1/324 ,  F04B9/107 ,  F04B41/02 ,  F04B47/00 ,  F04B47/04 ,  F04B47/08 ,  F04B49/065 ,  F04B49/22 ,  F04B49/225 ,  F04B2201/121 ,  F04B2203/091

Abstract: A lift apparatus and method for driving a downhole reciprocating pump is disclosed and includes a hydraulic cylinder having a piston and a hydraulic fluid port, the piston being coupled to a rod for driving the reciprocating pump, the piston being moveable between first and second ends of the cylinder in response to a flow of hydraulic fluid through the hydraulic fluid port. A variable displacement hydraulic pump is responsive to a displacement control signal to draw hydraulic fluid from a reservoir and to produce a controlled flow of hydraulic fluid at the outlet. The apparatus also includes a valve connected between the hydraulic fluid port and the reservoir, the valve being responsive to a valve control signal for controlling discharge of hydraulic fluid from the hydraulic fluid port of the cylinder back to the reservoir to facilitate movement of the piston through a downstroke away from the second end toward the first end of the cylinder. The apparatus further includes a first sensor located proximate the first end of the cylinder and operable to produce a first signal indicating a proximity of the piston to the first sensor, a second sensor located proximate the second end of the cylinder and operable to produce a second signal indicating a proximity of the piston to the second sensor, and a controller operably configured to generate the displacement control signal and the valve control signal in response to receiving the first signal and the second signal.

公开(公告)号：US09983076B2

公开(公告)日：2018-05-29

申请号：US14828706

申请日：2015-08-18

Applicant: BODE ENERGY EQUIPMENT CO., LTD.

Inventor： Min Zhao

IPC: G01L5/00 ,  H02J7/35 ,  E21B43/12 ,  E21B47/00 ,  F04B17/00 ,  F04B47/02 ,  F04B49/06

CPC classification number: G01L5/00 ,  E21B43/127 ,  E21B47/0008 ,  F04B17/006 ,  F04B47/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/121 ,  F04B2201/1211 ,  H02J7/35 ,  Y02E10/566 ,  Y02P80/158

Abstract: An adapter for a load cell in a rod pump system includes an outer shell including a mounting portion configured to attach to the load cell on a polished rod, a power supply configured to provide power to the adapter and the load cell, the power supply including a solar panel on the outer shell, a cable configured to connect to the load cell, the adapter configured to provide power to the load cell via the cable, and the adapter configured to receive a load signal from the load cell via the cable, a signal processor configured to receive and process the load signal and to output load signal data representative of a load experienced by the load cell, and a wireless transmitter to transmit the load signal data.

公开(公告)号：US09897083B2

公开(公告)日：2018-02-20

申请号：US13663155

申请日：2012-10-29

Applicant: Victoria M. Pons

Inventor： Victoria M. Pons

IPC: G06F7/60 ,  G06G7/48 ,  F04B49/06 ,  F04B49/20 ,  F04B47/02 ,  F04B51/00 ,  E21B43/12 ,  E21B47/00 ,  G05B13/04

CPC classification number: F04B49/065 ,  E21B43/127 ,  E21B47/0008 ,  E21B2043/125 ,  F04B47/022 ,  F04B49/20 ,  F04B51/00 ,  F04B2201/121 ,  F04B2201/1211 ,  G05B13/042

Abstract: Diagnosing a pump apparatus having a downhole pump disposed in a deviated wellbore characterizes axial and transverse displacement of a rod string with two coupled non-linear differential equations of fourth order, which include axial and transverse equations of motion. To solve the equations, derivatives are replaced with finite difference analogs. Initial axial displacement of the rod string is calculated by assuming there is no transverse displacement and solving the axial equation. Initial axial force is calculated using the initial axial displacement and assuming there is no transverse displacement. Initial transverse displacement is calculated using the initial axial force and the initial axial displacement. Axial force and friction force are calculated using the initial displacements, and the axial displacement at the downhole pump is calculated by solving the axial equation with the axial force and the friction force. Load at the downhole pump is calculated so a downhole card can be generated.

公开(公告)号：US20170268500A1

公开(公告)日：2017-09-21

申请号：US15424452

申请日：2017-02-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Omar Al Assad ,  Rogier Sebastiaan Blom, JR. ,  Gary Hughes ,  Justin Edwin Barton ,  Peter Westerkamp

IPC: F04B49/20 ,  E21B47/00 ,  E21B43/12 ,  F04B47/02 ,  F04B51/00

CPC classification number: F04B49/20 ,  E21B43/126 ,  E21B47/0007 ,  E21B47/0008 ,  F04B47/022 ,  F04B47/026 ,  F04B49/065 ,  F04B51/00 ,  F04B53/14 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0203 ,  F04B2201/1201 ,  F04B2201/121 ,  F04B2201/1211

Abstract: A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.

公开(公告)号：US20130115107A1

公开(公告)日：2013-05-09

申请号：US13663174

申请日：2012-10-29

Applicant: Victoria M. Pons

Inventor： Victoria M. Pons

IPC: G01V9/00 ,  G06F17/00

CPC classification number: F04B49/065 ,  E21B43/127 ,  E21B47/0008 ,  E21B2043/125 ,  F04B47/022 ,  F04B49/20 ,  F04B51/00 ,  F04B2201/121 ,  F04B2201/1211 ,  G05B13/042

Abstract: A pump apparatus has a downhole pump disposed in a wellbore and has a motor at the surface, and a rod string operatively moved by the motor reciprocates the downhole pump in the wellbore. Downhole data indicative of load and position of the downhole pump is generated using surface measurements and a wave equation model having an upstroke damping factor and a downstroke damping factor. Actual fluid load lines are determined from the downhole data for upstrokes and downstrokes of the downhole pump, and calculated fluid load lines for from the strokes are determined from the distribution of the load values in the downhole data. The actual fluid load lines are compared to the calculated fluid load lines to determine if the downhole card is over or under-damped. Then, at least one of the upstroke or downstroke damping factors of the wave equation model is adjusted so that new downhole data can be generated with appropriate damping.

Abstract translation: 泵装置具有设置在井眼中的井下泵，并且在表面具有马达，并且由马达可操作地移动的杆串使钻井中的井下泵往复运动。 使用表面测量和具有上行阻尼因数和下行程阻尼系数的波动方程模型生成表示井下泵的载荷和位置的井下数据。 实际流体载荷线由井下泵上下冲击的井下数据确定，根据井下数据中载荷值的分布确定来自冲程的流体载荷线。 将实际的流体负载线与计算的流体负载线进行比较，以确定井下卡是否超过或不足。 然后，调整波动方程模型的至少一个上行程或下行程阻尼因子，以便可以用适当的阻尼产生新的井下数据。

公开(公告)号：US20100014989A1

公开(公告)日：2010-01-21

申请号：US12446852

申请日：2007-10-04

Applicant: Tatsumi Tsuruta ,  Yoichi Yamamoto ,  Koji Kawamoto ,  Tetsuo Kawano

Inventor： Tatsumi Tsuruta ,  Yoichi Yamamoto ,  Koji Kawamoto ,  Tetsuo Kawano

IPC: F04B49/06

CPC classification number: F04B47/02 ,  F04B49/065 ,  F04B2201/121 ,  F04B2203/0204 ,  F04B2203/0207 ,  F04B2203/0209

Abstract: It is an object of the invention to provide a pump jack pump-off control method and a pump jack control apparatus in which, even when the speed of a pump jack is reduced due to generation of a pump-off condition, the pump jack is not caused to stop due to the motor overload abnormality or the coagulated crude oil and, even when the pump-off condition is generated, the reduction of the production capacity of the pump jack can be prevented as much as possible. On detecting the pump-off condition, while the pump jack is in operation with the speed thereof being reduced, or while the pump jack is in operation at the lowest speed, according to the overload warning signal of an ac electric motor, the pump jack is switched over to its intermittent operation. Also, the pump jack can be operated in such a manner that the stroke speed of the pump jack in the up stroke operation can be switched from a sinusoidal wave form over to a rectangular wave form, or, in the operation of the pump jack by an inverter, the pump jack can be operated such that it can carry out its up stroke operation with a limit imposed on torque.

Abstract translation: 本发明的一个目的是提供一种泵千斤顶排水控制方法和一种泵千斤顶控制装置，其中即使当由于产生排水状态而使泵千斤顶的速度降低时，泵千斤顶 不会由于电机过载异常或凝固原油而停止，即使在产生脱离状态的情况下，也能够尽可能地防止泵千斤顶的生产能力的降低。 一旦检测到脱水状态，当泵式千斤顶的运转速度降低时，或者当泵式千斤顶以最低速度运转时，根据交流电动机的过载报警信号，泵的千斤顶 切换到间歇操作。 此外，泵千斤顶可以以这样的方式操作，使得在上行程操作中的泵千斤顶的行程速度可以从正弦波形切换到矩形波形，或者在泵千斤顶的操作中 一个变频器，可以操作泵千斤顶，使其能够以施加扭矩的极限进行上行程操作。

公开(公告)号：US20080240930A1

公开(公告)日：2008-10-02

申请号：US12090250

申请日：2005-10-13

Applicant: Krzysztof Palka ,  Jaroslaw A. Czyz

Inventor： Krzysztof Palka ,  Jaroslaw A. Czyz

IPC: E21B47/00

CPC classification number: G06F17/5018 ,  E21B43/127 ,  F04B47/02 ,  F04B47/022 ,  F04B49/065 ,  F04B2201/0202 ,  F04B2201/0206 ,  F04B2201/121 ,  F04B2203/0209 ,  F04B2205/04 ,  G05B13/041

Abstract: A method and system for pumping unit with an elastic rod system is applied to maximize fluid production. The maximum stroke of the pump and the shortest cycle time are calculated based on all static and dynamic properties of downhole and surface components without a limitation to angular speed of the prime mover. Limitations of structural and fatigue strength are incorporated into the optimization calculation to ensure safe operation while maximizing pumped volume and minimizing energy consumption. Calculated optimal prime mover speed is applied to the sucker rod pump by means of beam pumping, long stroke or hydraulic pumping unit by controlling velocity, acceleration and torque of the electric prime mover or by controlling pressure and flow rate in hydraulically actuated sucker rod pumping system.

Abstract translation: 应用一种用弹性杆系统进行泵送单元的方法和系统，以最大化流体生产。 泵的最大行程和最短的循环时间是基于井下和表面部件的所有静态和动态特性而不受原动机角速度限制的。 结构和疲劳强度的限制被纳入优化计算，以确保安全运行，同时最大限度地提高抽水量并最大限度地降低能耗。 通过控制电动泵的速度，加速度和扭矩或通过控制液压驱动抽油杆泵送系统中的压力和流量，通过波束泵送，长行程或液压泵送单元，计算出最佳原动机速度应用于抽油杆泵 。