Pump Efficiency Adjustment Intelligent Pumping Unit

Abstract

The invention provides an intelligent oil pumping unit with pump efficiency adjustment, which can be set at the oil well to draw the oil pump according to the pump efficiency set by the worker, and is characterized in that it includes: an oil pumping action device; and controls the action of the oil pumping action device oil pumping control device. Generate the corresponding benchmark dynamometer diagram according to the pump efficiency set by the workers, and compare it with the current dynamometer diagram generated based on the current electrical parameters obtained from the measurement and the stored fixed electrical parameters and transmission parameters. A corresponding adjustment frequency is generated according to the offset of the current dynamometer relative to the reference dynamometer, and the current frequency of the driving motor is adjusted according to the adjustment frequency to control the oil pumping efficiency of the oil pumping action mechanism for pulling the oil well pump.

Description

technical field [0001] The invention belongs to the technical field of pumping unit equipment, and particularly relates to an intelligent pumping unit for adjusting pump efficiency. Background technique [0002] Common pumping units are traditional pumping equipment widely used in oil fields, and are usually directly driven by ordinary AC asynchronous motors. The crank belt drives the travel beam with the counterweight balance block, and drives the oil well pump to make a fixed period of up and down reciprocating motion, so as to send the oil under the oil well to the ground. [0003] However, the situation of the oil layer under the oil well is very complicated, and there are rich oil wells, lean oil wells, thin oil wells, and heavy oil wells. In addition, as far as the oil pump itself is concerned, the gap between the worn piston and the bushing is difficult to solve. Moreover, the changing formation factors such as sand, wax, water, gas and other complex conditions in th...

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Problems solved by technology

However, this method can only manually change the stroke times of the pumping unit, which increases the workload of the workers. Moreover, due to the complex and changeable situation in the oil well, the workers in the oil field cannot grasp the situation in the oil well in time, and cannot set the maximum value in time. The optimal control frequency is adapted to the situation in the oil well, so that the average efficiency of the oil pump is low, and the power consumption per unit output is high, which does not meet the current purpose of saving energy and reducing consumption of the oil well.

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