公开(公告)号：US08106615B2

公开(公告)日：2012-01-31

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: H02H7/08 ,  H02P23/00 ,  H02P7/00 ,  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：US20090311107A1

公开(公告)日：2009-12-17

申请号：US12138517

申请日：2008-06-13

Applicant: Cesar Antonio Chavez Zapata

Inventor： Cesar Antonio Chavez Zapata

IPC: F04B49/00

CPC classification number: F04B47/02 ,  F04B2201/0201 ,  F04B2201/121

Abstract: Apparatus, methods, and system for wireless remote monitoring and controlling a sucker rod pump for producing hydrocarbons, providing self-adjusting methods for operation over a wide-range of operating conditions according to algorithms that automatically compensate for offset and amplitude drift in sensor data, automatically identify pump off conditions, and automatically optimize hold down time.

Abstract translation: 用于无线远程监测和控制用于生产碳氢化合物的抽油杆泵的装置，方法和系统，根据自动补偿传感器数据中的偏移和幅度漂移的算法，提供用于在宽范围操作条件下操作的自调节方法， 自动识别脱水条件，并自动优化压缩时间。

公开(公告)号：US20090232662A1

公开(公告)日：2009-09-17

申请号：US12400852

申请日：2009-03-10

Applicant: Thomas M. Mills

Inventor： Thomas M. Mills

IPC: F04B49/20 ,  F04B17/00 ,  G05D7/00 ,  G05B13/02

CPC classification number: E21B47/0008 ,  F04B47/00 ,  F04B47/02 ,  F04B49/06 ,  F04B51/00 ,  F04B2201/121

Abstract: The present invention provides highly accurate methods for directly calculating pump fillage which avoid the need and expense of a pump dynamometer card and subsequent calculations.

Abstract translation: 本发明提供了用于直接计算泵填充量的高精度方法，其避免了泵测力计卡的需要和费用以及随后的计算。

公开(公告)号：US07500390B2

公开(公告)日：2009-03-10

申请号：US11172214

申请日：2005-06-29

Applicant: Thomas M. Mills

Inventor： Thomas M. Mills

IPC: F04B51/00

CPC classification number: E21B47/0008 ,  F04B47/00 ,  F04B47/02 ,  F04B49/06 ,  F04B51/00 ,  F04B2201/121

Abstract: The present invention provides highly accurate methods for directly calculating pump fillage which avoid the need and expense of a pump dynamometer card and subsequent calculations.

Abstract translation: 本发明提供了用于直接计算泵填充量的高精度方法，其避免了泵测力计卡的需要和费用以及随后的计算。

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.