Pump Introduction (Figure)

What are the classification of pump classification? Pump is driven by the pumping unit to lift the crude oil to the ground floor of the common downhole device. Pumps specific categories: Tubular pump rod pump 1) Pump - Tubular pump Tubular pump, also known as tubing pump, is characterized by the outer cylinder, bushings and suction valve assembled on the ground and connected to the lower part of the first pipe Into the well, and then equipped with a discharge valve piston sucker rod through the pump into the pump. The bushing is machined into sections by material and lined inside the outer cylinder. The piston is a hollow cylinder made of seamless steel pipe. The outer surface of the piston is smooth with an annular groove, so that the sand entering the gap between the piston and the liner collects in the groove to prevent the sand from wearing down the piston and the liner, and the groove Oil stored in the tank lubricates the surface of the piston. 2) Suction Pump - rod pump rod pump is divided into two parts: one is connected with the tubing seal support joints, the second is the rod pump. Rod-type pump, the overall with the sucker rod into the tubing within the predetermined location fixed and sealed, it is also known as "plug-in pump, rod pump according to its fixed position is divided into: fixed top rod Pump, fixed bottom fixed rod pump, movable bottom fixed rod pump three; its fixed device is divided into mechanical, cup-type. Rod sucker pump features: ①, sucker rod pump in the pumping process from the next operation, do not need to start the tubing, easy operation, saving time and labor, taking a short time; at the same time due to reduce the tubing shackle operation , To reduce the hidden dangers of tubing thread leakage, to extend the service life of tubing, which will help the tubing maintenance. ②, through the improvement of the structure, in the replacement of different diameter rod pump, to achieve the purpose of fixed column; that is, rod pump seal support joints (connected with the tubing) as a common parts. ③, rod pumping pump body can swing around the fixed device, suitable inclined shaft. ④, rod pump pump pump pumping efficiency than the general high. ⑤, rod pump structure in various forms, strong selectivity.

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