Oil pumping unit on-line fault diagnosis system and diagnostic method thereof

Abstract

The invention relates to an oil pumping unit on-line fault diagnosis system of a diagnosis method thereof. The system is arranged on a single oil pumping unit to be measured and an oil well of the single oil pumping unit, and comprises an on-line measuring unit, a control unit, an on-line analysis unit, a power supply unit and other auxiliary units; the on-line measuring unit is used for on-line measuring the dynamic oil-out parameters of a single pumping unit and the real-time well condition parameters of the oil well, and transmitting the dynamic oil-out parameters and the real-time well condition parameters to the on-line analysis unit, the on-line analysis unit judges whether the working state of the oil pumping unit is healthy or not through comparative analysis, the control unit controls the start and stop of the pumping unit according to the judgment result, and the control unit synchronously transmits the analysis result to the control center through a wireless or wired transmission mode; the other auxiliary units comprise a video on-line monitoring module, a fire alarm monitoring module and a smoke monitoring module, wherein the video on-line monitoring module, the fire alarm monitoring module and the smoke monitoring module are all connected with the control unit and the control center.

Description

technical field [0001] The invention belongs to the technical field of online fault diagnosis and control of a pumping unit in the petroleum drilling industry, and in particular relates to an online fault diagnosis system of a pumping unit. Background technique [0002] In the modern oil recovery process, the online fault diagnosis technology of the pumping unit is already an important part, and it is a key technology of the digital oil field. There are about 140,000 oil wells on land in my country, more than 90% of which use rod pump oil production technology. At present, the analysis of oil well operation status adopts a centralized processing method: install data acquisition devices on the oil well site, and collect field data through public wireless networks. , optical cable, small microwave and other communication channels are transmitted to the control center, and the system workstation of the control center performs centralized processing. There are following problems...

AI Technical Summary

Problems solved by technology

There are following problems like this: 1) because the historical database is very large, there are many oil wells to be processed by the workstation, which cannot be processed in time for a single oil well

2) Since oil wells are distributed in scattered locations and the geographical environment is harsh, to achieve smooth communication between wells and wells, the cost of establishing a communication system is high

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