Beam-pumping unit motor fault prediction device and method

Abstract

The invention discloses a beam-pumping unit motor fault prediction device which comprises an electrical parameter data acquisition module, a data analysis and processing module, a data storage module, a communication module and a power supply module. The electrical parameter data acquisition module is used for acquiring electrical parameter data of a driving end in real time; the data analyzing and processing module is used for analyzing and processing the collected electrical parameter data, extracting key characteristic indexes, diagnosing fault information of the motor of the oil pumping unit and carrying out fault prediction; the data storage module is used for storing the collected data and the data in the processing process of the data analysis processing module; the communication module is used for sending the fault information of the pumping unit motor and the fault prediction result to the upper computer; and the power supply module is used for providing matched voltage for each module. According to the invention, the problem that the fault of the pumping unit motor can be found as soon as possible under the condition that the regular maintenance of the pumping unit motor is insufficient can be solved. By collecting the electric parameter data of the upper stroke and the lower stroke, the running state of the motor is monitored continuously in real time, and the significance of predictive maintenance is achieved.

Description

technical field [0001] The invention relates to the technical field of oil production engineering, in particular to a device and method for predicting faults of a beam pumping unit motor. Background technique [0002] In the production process of oil production, the main method currently used is mechanical oil production, and the beam pumping unit is a kind of rod pump. As a conventional artificial lift method for oil production, it is the most widely used in oil fields. It is a kind of oil production method that through the rotation of the ground motor and the speed change of the gear box, the polished rod, the sucker rod string and the plunger of the sucker pump are driven to reciprocate, and the downhole liquid is discharged to the ground through the oil pipe. [0003] The drive motor as the core component plays a very important role in the production process of oil production. Since the pumping unit needs to operate continuously in the harsh field environment for a long ...

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Problems solved by technology

[0003] As the core component, the driving motor plays a very important role in the oil production process. Since the pumping unit needs to operate continuously in the harsh environment of the field for a long time, and the quality of the power grid will also affect it, although regular daily inspections will be performed on the motor It can perform predictive maintenance operations, but it is still unable to achieve all-weather protection, and the lack of manual inspection will also lose the meaning of predictive maintenance. Once a failure occurs, the oil recovery efficiency will be greatly reduced

[0004] The traditional predictive maintenance of beam pumping unit motor faults relies on manual on-site measurement of many key motor operation indicators, and then carefully observes and analyzes the measurement results. Skilled maintenance personnel can predict the failure of the pumping unit motor. Often confused by the change of the measurement results caused by the change of the operating parameters of the pumping unit motor, and the real-time detection of the pumping unit motor cannot be achieved manually, so there is an urgent need for a beam pumping unit motor fault prediction device and method to solve the shortage of motor maintenance in traditional methods

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