Low clearance downhole pump

Details Low clearance downhole pump Low clearance downhole pump

2011-01-25

2011-01-25

Bagnell, David J (Department: 3672)

Wells

Processes

Producing the well

C417S552000, C417S053000

Reexamination Certificate

active

07874367

ABSTRACT:
A pump has a housing having a top plate and a bottom plate and a shaft slidingly extending through an aperture in the top plate. A piston is connected to the shaft. The piston separates a volume within the housing into a first stage chamber defined in the housing below the piston and a second stage chamber defined in the housing above the piston. A fluid transfer port in the piston is in fluid communication with the second stage chamber and, through a check valve, with the first stage chamber. Another stage check valve allows one-way flow of fluid from a suction area below the bottom plate into the first stage chamber. A pressure control valve may be provided for selectively allowing fluid to flow out of the first stage chamber.

REFERENCES:
patent: 2580331 (1951-12-01), Teetor
patent: 2950704 (1960-08-01), Andrews
patent: 3227086 (1966-01-01), Haworth, Jr. et al.
patent: 2453072 (2004-05-01), None

Affiliated with

Also associated with

Rating

Low clearance downhole pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low clearance downhole pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low clearance downhole pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2625942