Efficient method for frequency conversion and energy saving of oil pumping unit

A high-efficiency technology for pumping units, which is applied in the field of high-efficiency pumping units for frequency conversion and energy saving, can solve the problems of high energy consumption and low efficiency of pumping units, and achieve the effects of protecting energy saving, reducing peak current, and protecting reducers

Active Publication Date: 2014-08-13
ANHUI DORJE ELECTRIC
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AI Technical Summary

Problems solved by technology

[0003] The present invention is to avoid the deficiencies in the above-mentioned prior art and provide an efficient frequency conversion and energy-saving method for the pumping unit to solve the problems of high energy consumption and low efficiency during the operation of the pumping unit

Method used

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  • Efficient method for frequency conversion and energy saving of oil pumping unit
  • Efficient method for frequency conversion and energy saving of oil pumping unit
  • Efficient method for frequency conversion and energy saving of oil pumping unit

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Embodiment Construction

[0046] see Figure 1 to Figure 6 , an efficient frequency conversion energy-saving method for pumping units, such as Figure 4 shown, including the following steps:

[0047] Step 1: After turning on the equipment, initialize the control system of the pumping unit and adjust the balance of the pumping unit;

[0048] Step 2: Determine whether the pumping unit is in the power frequency working mode or the frequency conversion working mode; if it is in the power frequency working mode, keep the pumping unit in the working state of the power frequency working mode; if the pumping unit is in the frequency conversion working mode, then judge the frequency conversion Whether there is a fault in the device;

[0049] Step 3: If the frequency converter is faulty, adjust the pumping unit to the power frequency working mode and keep the pumping unit in the power frequency working mode; if the frequency converter is not faulty, go to step 4;

[0050] Step 4: Determine whether the pumping ...

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Abstract

The invention discloses an efficient method for frequency conversion and energy saving of an oil pumping unit. The efficient method comprises the following steps that after a device is started, a system is initialized and the balance degree of the oil pumping unit is adjusted; whether the oil pumping unit is in a power frequency operation mode or in a frequency conversion operation mode is judged; in the frequency conversion operation mode, whether a frequency converter breaks down or not is judged, and if not, a stroke frequency adjustment mode of the oil pumping unit is judged; in an automatic stroke frequency adjusting mode, indicator diagram data are collected and whether the oil pumping unit breaks down or not is judged according to an indicator diagram; if the oil pumping unit does not break down, whether the oil pumping unit needs interval pumping control or not is judged; if the oil pumping unit does not need the interval pumping control, the stroke frequency of the oil pumping unit is automatically adjusted. The method for frequency conversion and energy saving of the oil pumping unit has the advantages that the adjustment of the balance degree, the optimal operation stroke frequency and the optimal interval pumping mode is conducted according to the working conditions of the oil pumping unit, the states of high efficiency and low energy consumption of the oil pumping unit can be kept, and the problems of high energy consumption and low efficiency in the operation process of the oil pumping unit can be solved.

Description

technical field [0001] The invention relates to an energy-saving method for an oil pumping unit, in particular to an efficient frequency conversion energy-saving method for an oil pumping unit. Background technique [0002] Many oilfields in my country have gradually entered the middle and later stages of production, and the downhole fluid supply is gradually insufficient, and the pump efficiency is gradually reduced. The phenomenon of "half pumping" and "empty pumping" is serious. In addition, the balance adjustment is unreasonable, which makes the machine and well parameters mismatch, resulting in "Malaysia". Pulling a trolley” phenomenon. The operating efficiency of pumping units is particularly low, with an average efficiency of 25.96% in my country and 30.05% abroad. While ensuring energy supply, the oil field also consumes a large amount of electric energy. The electric energy consumed by the pumping unit alone exceeds 40% of the total electric power consumption of the...

Claims

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Application Information

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IPC IPC(8): G05B19/418E21B43/00
CPCY02P90/02
Inventor 刘曙光赵文谱
Owner ANHUI DORJE ELECTRIC
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