Rotary and reciprocal well pump system

Details Rotary and reciprocal well pump system Rotary and reciprocal well pump system

2006-11-14

2006-11-14

Thompson, Kenneth (Department: 3672)

Wells

Processes

Producing the well

C166S105000, C417S390000

Reexamination Certificate

active

07134499

ABSTRACT:
A well pumping system has a downhole rotary pump that drives a downhole reciprocating pump. The reciprocating pump is an intensifier, having a primary piston and a secondary piston of lesser diameter. A sequencing valve connects between the discharge of the rotary pump and the primary cylinder for alternately supplying well fluid from the rotary pump to the primary piston to stroke the primary and secondary pistons. The secondary piston pumps well fluid to the surface.

REFERENCES:
patent: 1593820 (1926-07-01), Gates
patent: 2220334 (1940-11-01), Holmberg
patent: 2444159 (1948-06-01), Godfriaux
patent: 2455022 (1948-11-01), Schmidt
patent: 3091181 (1963-05-01), Wolf
patent: 3589838 (1971-06-01), Tuzson
patent: 4234295 (1980-11-01), Jensen
patent: 4406598 (1983-09-01), Walling
patent: 4536137 (1985-08-01), Bookout et al.
patent: 4591320 (1986-05-01), Pope

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