Method of assembling a well pump

Details Method of assembling a well pump Method of assembling a well pump

1989-08-30

1991-08-27

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29469, B23P 1500

Patent

active

050421492

ABSTRACT:
A method of assembling a downhole well pump system comprising a reciprocating piston pump having a total vertical length exceeding the clearance available in most factories. The pump comprises a tubular body which is positioned horizontally within which an upper barrel section is threadably secured at the end corresponding to the top of the barrel section when the pump is in a vertical position. The lower end of the barrel section thus rests on the lower interior surface portion of the shell. A pair of axially spaced pistons are mounted on opposite ends of a piston tube and the piston tube slidably traverses a divider which has threads for connecting to the bottom end of the tubular shell and a cylindrical surface for snug insertion into the bottom end of the tubular barrel section. The piston assemblage is inserted into the horizontally disposed tubular body and the leading piston engages the bore of the barrel section to lift the barrel section to a substantially co-axial position relative to the tubular shell. A protective cap is applied to the second piston and the aforementioned assemblage is transported to the well and raised into a vertical position for insertion into the well bore into which a second tubular barrel section has already been inserted which cooperates in sealing relationship with the second piston and is threadably secured to the divider, thus completing the assemblage of the pump.

REFERENCES:
patent: 2268543 (1942-01-01), Coberly
patent: 2478818 (1949-08-01), Geiger et al.
patent: 3123007 (1964-03-01), Orr

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