Method for remotely automatically adjusting oil well random-load balance

Abstract

The invention relates to a method for remotely automatically adjusting oil well random-load balance. The method includes the steps that an automatic adjusting control center, a torque detection unit, a power detection unit, a pumping unit stroke detection unit, a controllable balance weight positioning unit, a site manual unit, a controllable balance weight unit and an RTU remote control unit form an automatic system; the automatic adjusting control center receives input signals of the torque detection unit, the power detection unit, the pumping stroke detection unit, the controllable balance weight positioning unit and the site manual unit, conducts high-speed computing and then drives the controllable balance weight unit to move, the optimal position of a controllable balance weight is achieved when the upper stroke torque and the lower stroke torque of a pumping motor are most stable, and the automatic adjusting control center controls the controllable balance weight unit to achieve the optimal position; the automatic adjusting control center is in two-way communication with the RTU remote control unit. By the implementation of the method, oil well random-load balance can be remotely automatically adjusted under the condition that an original operating mode of a pumping unit is unchanged, and the goals of reducing loads and energy consumption of the pumping unit are achieved when the loads of a well mouth change.

Description

technical field [0001] The invention relates to a remote automatic adjustment oil well load-balancing method, which is applicable to all types of pumping wells and belongs to the field of oil drilling equipment. Background technique [0002] With the deepening of energy-saving work in oil fields, many new energy-saving pumping units have appeared in recent years, such as energy-saving pumping units with double donkey heads, swing rods, and downward bias barbells. [0003] The double donkey head pumping unit strengthens the balance effect by changing the variation law of the torque factor of the pumping unit, and achieves the purpose of energy saving. It is based on the conventional machine model, and has carried out key technical changes in its four-bar mechanism. It adopts a special curved beam rear arm, and a flexible connection structure between the beam and the cross beam to obtain a rocker (travel) Beam rear arm) length and connecting rod length change with the change...

AI Technical Summary

Problems solved by technology

[0006] Although these pumping units have achieved a certain energy-saving effect, they do not have the function of remote automatic adjustment of the oil well load balance, which makes the oil well load balance very unstable, reduces the service life of the pumping unit equipment and causes a lot of waste of electric energy

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