Heavy spherical pump with double oil filling

Abstract

The invention discloses a double inlet oil heavy ball pump, which comprises a pump cylinder; a plurality of holes are arranged on the cylinder walls of the pump cylinder in the reciprocating stroke of a plunger piston component; during the lifting process of the plunger piston component, the petroleum enters the pump chamber from a guiding valve at the lower end of the pump, while the plunger component is lifted up to an upper limit position, the petroleum at the outside of a defueling pump simultaneously enters the pump chamber through the holes; the double oil inlet function speeds up the oil inlet and improves the oil pumping efficiency; during petroleum exploitation, in particular to the heavy petroleum development, after the plunger component falls to the bottom of the pump chamber, the holes on the pump cylinder are exposed and are communicated with the inner and outer walls of the pump above the plunger component, that is, heavy petroleum thinner can be added from the upper end of a defueling pipe from the ground. The invention has short working period; the labor intensity of the petroleum workers is reduced.

Description

technical field [0001] The invention relates to the technical field of petroleum machinery, in particular to an oil pump. Background technique [0002] The resurrection of old wells, the development of heavy oil, and the oil recovery of special oil mines have received widespread attention and great attention at home and abroad. During the development, all the downhole tubing, tubing hangers, sucker rods, and oil well pumps need to be lifted out of the ground, and then the downhole heavy oil can be pumped, which is labor-intensive, time-consuming, wastes energy, and pollutes the environment It needs a particularly large investment, and its working cycle is long, and the labor intensity of oil production workers is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a double-inlet heavy ball pump that can perform process conversion without lifting the oil pumping equipment out of the ground during the oil pumpin...

AI Technical Summary

Problems solved by technology

[0002] The resurrection of old wells, the development of heavy oil, and the oil recovery of special oil mines have received widespread attention and great attention at home and abroad. During the development, all the downhole tubing, tubing hangers, sucker rods, and oil well pumps need to be lifted out of the ground, and then the downhole heavy oil can be pumped, which is labor-intensive, time-consuming, wastes energy, and pollutes the environment It requires a particularly large investment, and its working cycle is long, and the labor intensity of oil production workers is high

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