Oil wellmaximum yield mode control method based on stroke ratio and dynamic control diagram

Abstract

The invention relates to an oil well maximum yield mode control method based on the stroke ratio and a dynamic control diagram. A ground indicator diagram of an oil well is analyzed, the effective stroke of the oil well is calculated, the change condition of the stroke ratio is analyzed, under the premise that the pump efficiency is as high as possible, a pumping unit is maintained to run at the low frequency, that is, based on the principles of the high pump efficiency and low energy consumption, an intelligent optimization frequency conversion scheme of the oil well is designed, and a frequency conversion control strategy is corrected combined with evaluation results of the dynamic control diagram of the oil well, so that the oil well maintains a reasonable maximum yield model to produce. Under traditional frequency conversion control modes, frequency conversion control of a rod pumping well is still dominated by human decision-making, real-time adjustment of a pumping well is difficult to realize, according to a rod pumping well intelligent frequency conversion control method based on the indicator diagram stroke ratio and the oil well dynamic control diagram, the oil well is optimized and controlled in real time, the oil well is subjected to frequency conversion optimization control while the reservoir potentiality is exerted to the maximum limit, oil extraction energy consumption is lowered, the system efficiency is improved, and the purposes of cost lowering and efficiency improving of production of an oil field are achieved.

Description

technical field [0001] The invention relates to the field of intelligent control of production modes of pumping wells in oil fields, in particular to an intelligent optimization frequency conversion control method for reasonable maximum production modes of pumping wells based on the stroke ratio of the power diagram and the dynamic control diagram of the oil well. Background technique [0002] With the continuous deepening of oilfield development, the productivity of oil wells is reduced, and the system efficiency is also declining. Most of the oil wells in my country's oilfields are pumping wells, and most of them have problems with low pump efficiency, especially for low-production wells. The system operation efficiency is low Result in huge waste of energy and increase the cost of oil field oil recovery. With the development of pumping unit technology, the degree of automation has been continuously improved, and frequency conversion control technology has been gradually ap...

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Problems solved by technology

[0002] With the continuous deepening of oilfield development, the productivity of oil wells is reduced, and the system efficiency is also declining. Most of the oil wells in my country's oilfields are pumping wells, and most of them have problems with low pump efficiency, especially for low-production wells. The system operation efficiency is low Lead to huge waste of energy and increase the cost of oil field recovery

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