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Subsurface Pump Classification .pdf

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Subsurface Pump-Classification

Subsurface pump belongs to modern term. It is downhole tools which pump the
oil in well to the ground powered by pumping unit. Normal subsurface pump consists
of cylinder, suction valve, piston, valve excluded. According to fixed way, the
subsurface pump can be divided into tube subsurface pump and rod subsurface pump.
Tube subsurface pump is also called the tubing pump. This machine usually
assemble the outer cylinder, the bushing and the suction valve well and send them
into well connect with the foot of oil pimp. Then you should use sucker rod transport
the piston equipped with discharge valve to pump.

The bushing was made into several sections by material. The piston is a hollow
cylinder made of seamless steel pipe. Its outer surface with an annular groove is smooth.
Its function is gathering the clearance sand consist in between piston and the bush to
avoid clearance sand wearing and tearing piston and the bush. What’s more, the oil in
groove acts as lubricating oil. In order to drain out the oil in oil pump, you can use
fishing suction valve (fixed valve). It lets the buckle under the piston clamp the fishing
head of suction valve. But, this pump is easily affected by the gas and reduce pump
pump efficiency
Rod subsurface pump is also called insert subsurface pump. Drum set fixed
bottom rod subsurface pump has internal and external working barrel. The outer
working barrel is provided with a seat and a circlip (vertebral circlip position for the
pump depth). When working, first, you should put the external working barrel into
+86 182 3419 6903

well. Then, you ought to connect the internal working barrel
equipped with bushings, pistons with the bottom of sucker rod and send it to external
working barrel fixed with circlip. There are other type of fixed rod subsurface pump.
Such as the rod subsurface pump which fixed point stay in bottom of pump.

+86 182 3419 6903

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