Oil pumping technology based on javelin valve anti-gas pump

Abstract

The invention discloses an oil pumping technology based on a javelin valve anti-gas pump. The oil pumping technology based on the javelin valve anti-gas pump includes that in an upstroke, an oil pumping rod drives a center rod to move upwards, a javelin valve is closed, a plunger is driven to move upwards, oil liquid on the upper portion of the plunger is lifted to the ground, and meanwhile, the plunger lower portion space becomes large, pressure is reduced, and oil is filled in a pump; and in a down stroke, the oil pumping rod drives the center rod to move, pushes the plunger to descend, and enables the javelin valve to be forcibly opened simultaneously, gas-oil mixtures in a pump lower cavity can smoothly enter an oil tube through the plunger, and therefore the anti-gas effect is achieved. The mechanical opening and closing is driven by the oil pumping rod, and the practice that a delivery valve of a conventional pump is opened and closed through a liquid pressure in the pump is abandoned; the oil pumping rod is in floating connection with the plunger, the oil pumping rod and the plunger can rotate relative to each other, and therefore the deformation factors and the number of breaking disconnection times of the oil pumping rod are reduced; and the javelin valve is opened and closed always through one face when working, and the structure determines that the javelin valve is short in service life.

Description

technical field [0001] The invention relates to an oil pumping process based on a javelin valve anti-air pump. Background technique [0002] Before the 20th century, the development of oil well pump technology at home and abroad was slow, and it was not until the middle of the 20th century that the whole barrel oil well pump was studied and produced simultaneously with the bushing type oil well pump. There are two technically controversial issues about oil well pumps: one is whether the whole barrel type oil well pump is better or the bushing type oil well pump is better; the other is whether it is better to have sand control grooves on the plunger or not to have sand control grooves. Until the 1980s, due to the significant improvement of the pump efficiency of the whole barrel pump, it is generally about 10% higher than that of the bushing pump, which prolongs the service life of the plunger pump barrel pair, and can save about 40% of high-quality steel. Instead of the bus...

AI Technical Summary

Problems solved by technology

There are two technically controversial issues about oil well pumps: one is whether the whole cylinder type oil well pump is better or the bushing type oil well pump is better; the other is whether it is better to have sand control grooves on the plunger or no sand control grooves

These gases occupy part of the volume of the pump chamber, which will reduce the fullness of the pump chamber, resulting in the lagging of the valve ball of the oil well pump, and even the phenomenon of "air lock"

"Hydraulic shock" also occurs during "air lock", causing vibration of the rod pumping system and accelerating its damage

As a result, pumping wells are frequently operated, shortening the pump inspection cycle, and increasing development costs

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