Pumping well frequency converting control method based on dynamic control chart and indicator diagram

Abstract

The invention relates to a pumping well frequency converting control method based on a dynamic control chart and an indicator diagram. By analyzing the indicator diagram of the ground of a pumping well and combining the actual production data and static parameters of an oil field, the stroke ratio of an up stroke to a down stroke of the pumping well is calculated and compared with previous data, the variation tendency of an effective stroke of the pumping well is analyzed, intelligent frequency conversion is carried out on the pumping well, and meanwhile, by combining the result of the dynamiccontrol chart of the pumping well, the frequency conversion effect of the pumping well is corrected. According to the pumping well frequency converting control method based on the dynamic control chart and the indicator diagram, the limitation that under an original traditional pattern, continuous optimization cannot be achieved due to the fact that the improvement of the pumping well pump efficiency depends on the maintaining operation, stimulation means, parameter adjusting optimization and other measures, and the defect that frequency converting control excessively depends on artificial participation, real-time adjusting on jig frequency cannot be achieved are changed. On the basis that the reservoir potentiality is brought into full play to the maximum extent, frequency conversion optimizing is achieved, the energy consumption of pumping well extraction is reduced, the efficiency of a rod pumped well is improved, and the yield of the pumping well and the continual optimization ofthe system efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of frequency conversion control of oil pumping wells in oil fields, in particular to a frequency conversion control method for pumping wells based on a dynamic control diagram and an indicator diagram. Background technique [0002] The basic principle of frequency conversion control technology for pumping wells is to convert the AC power on the power supply side of the motor (usually power frequency 50HZ in my country) into a three-phase AC power with adjustable frequency through the frequency converter, thereby changing the speed regulation method of its synchronous speed. The performance on the pumping well is to change the frequency conversion control of the stroke times. The oil production equipment commonly used in oil fields is mainly pumping units and electric pumps. Different production methods have different requirements for the control methods of frequency conversion devices. [0003] Pumping well...

AI Technical Summary

Problems solved by technology

In the traditional mode, the improvement of oil well pump efficiency depends on maintenance operations, production increase measures, parameter adjustment optimization and other means, which cannot achieve continuous optimization and has great limitations

With the partial application of frequency conversion speed regulation technology in oil well production, the convenience of oil well parameter adjustment has been realized to a certain extent, and the system efficiency of some oil wells has been improved. Adaptability to environmental changes needs to be improved

Images