RU26087U1 - DYNAMOMETER DEVICE FOR DEPTH PUMP UNIT PUMP UNITS - Google Patents

Description

2002118033

„LllijHIIpniliii jllliliiMPK6 F 04 B49 / 04

Dynamometering device for borehole sucker-rod deep pump installations

The utility model relates to the diagnosis of downhole equipment and can be used to control single and repeated dynamograms of sucker rod deep-well installations (SHGU) when assessing their operating modes and identifying malfunctions.

A known device DG-3 - hydraulic dynamograph (A.K. Mukhametzyanov, I.N. Chernyshov, A.I. Lipert, S. B. Ishemguzhin / Oil production by sucker rod pumps // M .: Nedra, 1993. - 350 p. ), containing a force measuring device with a hydraulic transformer, a recording device with a suspension reducer.

The disadvantages of the known device is the low reliability of the control and the complexity of the control due to the need for manual evaluation and microtocoling of the operating modes of the installation according to the recorded dynamogram.

A device for diagnosing borehole sucker-rod pumps (USSR AS No. 1560799, IPC F04B 49/04, BI No. 16, 04/30/90.) Is provided. It comprises a force sensor, an extreme position sensor, a calculating and resolving device with a spectrum analyzer, and an analysis results display unit.

The disadvantages of the known device is the low reliability of the control of a controlled dynamogram and the logging of control data.

The closest to the claimed device in technical essence and the achieved result is a device for dynamometry of borehole sucker rod pump installations (certificate No. 7456 for utility model, MNK 6 F04 B49 / 04), containing a force measuring and amplifier connected in series to the controller input, a control device and indications connected to the system bus of the controller, and a displacement sensor, the outputs of which are connected to the inputs of the controller through the interface.

The operator controls the dynamogram with the help of a displacement and load sensor of a polished rod installed in the cross-beam space of the ShGNU connected to the unit by an electronic measuring cable up to 50 meters in length.

A disadvantage of the known device is the following.

The complex, unsafe and lengthy process of mounting the sensor on the SHNU. The operator must constantly monitor the position of the movable cable to prevent it from breaking.

The presence of cables complicates the operation and increases the mass and dimensions of the device.

The main task, which the utility model is aimed at, is to simplify operation, reduce weight and dimensions, increase research efficiency, work safety and device reliability.

To solve the problem, the dynamometer of the borehole deep-well pump systems contains a serially connected power sensor and an amplifier connected to the first input of the controller, with a second input of which a motion sensor is connected, an interface connected to the first output of the controller, and a control and indication device.

New is that it is equipped with a radio unit connected to the third input of the controller, and the interface contains an additional connector for connecting external devices, and the output and input of the control and indication device are connected to the fourth input and to the second output of the controller, respectively.

And also the fact that either a thermal printing device or a visualization device or a personal electronic computer can be connected to an additional interface connector.

2

accelerometer.

The proposed design of a dynamometer device for borehole sucker rod pump systems due to cable-free connection simplifies operation, reduces weight and dimensions, increases the efficiency of research, safety and reliability of the device. The simplification: the control procedure is achieved through the use of an indirect method of monitoring the rod load by changing its diameter.

In FIG. a block diagram of a dynamometer device for borehole sucker rod pump installations is presented.

The dynamometer device for borehole deep-well rod pump installations (Fig.) Contains a force measuring sensor 1 and an amplifier 2 connected in an output to the first input of the controller 3, a displacement sensor 4, the output of which is connected to the second input of the controller 3, and a control and indication device 5 whose input is connected with the second output of the controller 3, and the output is connected to the fourth input of the controller 3. The device also includes a radio unit 6, including the transmitting and receiving devices, and connected to the third at the input of controller 3, an interface 7 is connected to the first input of controller 3. Interface 7 contains a connector 8, to which external devices can be connected, if necessary: a visualization device 9 or a thermal printing device 10 or a personal electronic printing machine 11. External devices are connected to the connector 8 measuring cable

The controller 3 contains a microprocessor 12, to the serial line of which an analog-to-digital converter (ADC) 13, non-volatile clock 14, long-term memory (DZU) 15, non-volatile random access memory (RAM) 16 are connected. The ADC inputs form the first and second inputs of the controller 3 , the input of controller 3 connected to the radio unit 6 forms a third

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the input of the controller 3. The output of the microprocessor 12, connected to the interface 7, forms the first output of the microprocessor 12. The output of the control and indication device 5 is the fourth input of the controller 3, and the input of the control and indication device 5 forms the second output of the controller 3.

The device has an internal (not shown in the diagram) battery. The visualization device 9 is powered by its own external batteries. The thermal printing device 10 is powered by a car battery and is connected to the dynamometer with an interface cable two meters long through the connector.

The device is based on known elements.

As a load cell 1, a pressure sensor of the LHP140 type is used. Amplifier 2 is made on the basis of an instrument (measuring) amplifier type INA118. The displacement sensor 4 is based on the acceleration sensor ADXL105.

The analog-to-digital converter 13 is made on the basis of the MAX186 integrated converter. The microprocessor 12 is made on an AT89S53 type chip and, together with the DZU 15 and the RAM 16 connected to the microprocessor 12 via a serial interface of the SPI type, provides reception, processing and operational storage of the received digital data.

The control and indication device 5 is based on an LED indicator and an eight-button sealed keyboard. The visualization device 9 is based on a PALM handheld personal computer. The device uses a thermal printer DPT-4133. As the displacement sensor 4, an ADXL105 accelerometer is used, RAM 16 is made on the M25640 chip.

For exchange with external devices, radio unit 6 is used on the DR3000-1 chip for transmitting and receiving data via a radio channel, as well as an interface chip such as RS32-MAX3202 through which data is transmitted via an interface cable

into devices 9, 10, 11.

The device operates as follows.

To register a dynamogram, the device is installed by the operator on a polished rod. The thermal printing device 10 and the visualization device 9 are connected after registering a dynamogram for recording in the form of printouts and displaying on the display of the visualization device 9 detailed research results.

The device for dynamometry of borehole sucker rod pump installations works in the following modes:

input of identification data and research modes; registration of dynamograms;

-printing of research protocols with graphs of dynamograms;

-data output on a PC.

Before starting the registration of dynamic characteristics, the operator, using the control and indication device 5, enters identification data and parametric characteristics of the monitored installation (well number, well number, stroke length of the polished rod, swing rate), selects the type of study: control of a single dynamogram, automatic control with a given time interval of several dynamograms, control of load changes over time.

At the beginning of the study, the microprocessor 12 reads the current time and date from the non-volatile clock 14 and stores this data in the non-volatile random access memory 16.

Under the influence of load changes, the diameter of the polished rod changes. During the control, the force sensor 1 converts the change in the diameter of the polished rod of the SHGNU into an analog signal, which is amplified by the amplitude and power of the amplifier 2. The analog signal from the output of the amplifier 2 is input

controller 3, where it is digitized by an analog-to-digital converter 13. The displacement sensor 4 converts the rod movement in the vertical plane to acceleration and also transfers to controller 3, where it is digitized by an analog-to-digital converter 13. Controller 3 calculates from acceleration the current position of the polished rod, which together with with a digital code of the load of the polished rod and the protocol data of the study are stored in a long-term storage device 15.

The measurement protocol along with the graph of the dynamograms is displayed by the controller 3 on the thermal printing device 10, on the visualization device 9 or on the PC 11.

Thus, the proposed design

dynamometry of downhole sucker rod pump installations due to cable-free connection simplifies operation, reduces weight and dimensions, increases research efficiency, safety and reliability of the device.

Claims (5)

1. A device for dynamometering downhole sucker-rod pump installations, comprising a force measuring sensor and an amplifier connected in series to the first input of the controller, the second input of which is connected to a displacement sensor, an interface connected to the first output of the controller, and a control and indication device, characterized in that it is equipped with a radio unit connected to the third input of the controller, and the interface contains an additional connector for connecting external devices, the output and input of the device -keeping controls and indicators are connected to a fourth input and a second output controller respectively.  2. The dynamometer of the downhole sucker-rod pumping apparatus according to claim 1, characterized in that a thermal printing device is connected to the additional interface connector.  3. The dynamometer of the downhole sucker-rod pumping apparatus according to claim 1, characterized in that a visualization device is connected to the additional interface connector.  4. The dynamometer device for downhole sucker-rod pumping apparatus according to claim 1, characterized in that a personal electronic computer is connected to the additional interface connector. 5. The dynamometer device of downhole sucker-rod pumping units according to claim 1, characterized in that the displacement sensor is made in the form of an accelerometer.