Potential oil screw pump production system

Abstract

The oil-submersible screw-pump oil production system includes from-bollom-to-top distributed oil-submersible motor, reducer, reducer, protecting device, screw-pump and oil-production system protection device positioned over the screw-pump. The described reducer includes difference planetary cone gear transmission mechanism and hoop rotation limiting mechanism, the straight internal bevel gear in the hoop rotation limting mechanism is meshed with straight external bevel gear on the output mechanism. The protection device of the reducer includes first pressure regulating mechanism and movement converting mechanism, and its system protection device includes second sealing mechanism, second translation slide mechanism and second pressure regulating mechanism.

Description

technical field [0001] The invention relates to an oil recovery system, in particular to a screw pump oil recovery system. Background technique [0002] At present, most of the screw pump oil production systems used in the oil production industry set the motor and reducer on the ground, and the power source provided by the power equipment needs to apply the torque of the transmission shaft to the underground well below a kilometer through a multi-rod mechanism. on the pump shaft. Under normal circumstances, the length of each rod is 6 to 10 meters. For example, when the depth of the pump is about 1,200 meters, the multi-rod structure for transmitting power includes about 20 rods. In this way, about 50% of the energy is consumed in the power transmission; because the power is transmitted by multiple rods, the power transmission often causes the twisting and sanding of the transmission parts, which reduces the pump efficiency of the screw pump, ...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the length of each rod is 6 to 10 meters. For example, when the depth of the pump is about 1,200 meters, the multi-rod structure for transmitting power includes about 20 rods. In this way, about 50% of the energy is consumed in the power transmission; because the power is transmitted by multiple rods, the power transmission often causes the twisting and sanding of the transmission parts, which reduces the pump efficiency of the screw pump, and even causes the oil production system to be damaged in severe cases. Paralyzed, thus causing great economic losses to the operators

[0003] In the screw pump oil production system of the prior art, the motor and the reducer are also arranged underground, although the unfavorable factors brought by the above-mentioned multi-rod transmission are solved; mechanism, its transmission ratio is small, the structure size is large, and the efficiency is low; in addition, the motion conversion mechanism in the system is usually set outside the reducer protection device, and the unstable factors of the external environment will cause wear and tear on the parts of the motion conversion mechanism , the work reliability is low; in addition, because there is no system protection device in the screw pump oil production system in the prior art, the screw pump has to bear additional axial force during work, which affects the working life of the screw pump

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