Subsurface pumping installation for handling viscous or sand-lad

Details Subsurface pumping installation for handling viscous or sand-lad Subsurface pumping installation for handling viscous or sand-lad

1976-01-29

1977-11-01

Freeh, William L.

Pumps

Including means to prevent foreign material settling from...

By application of separate fluid

F04B 3900

Patent

active

040563359

ABSTRACT:
A subsurface pumping installation for handling viscous or sand-laden fluids. The installation includes parallel power and production tubing strings, a pump located at the bottom of the power tubing string, and a crossover which affords communication between the pump and the production tubing string. Diluent is conducted to the well through the power tubing string. A portion of the diluent is conducted to the pump barrel below the plunger, where it serves to exclude well fluid from the plunger. Another portion may be conducted through a bypass tube to a mixing chamber below the pump, where it mixes with well fluid.

REFERENCES:
patent: 723676 (1903-03-01), Jones
patent: 1340545 (1920-05-01), Johnson
patent: 1550767 (1925-08-01), Weaver
patent: 1554691 (1925-09-01), Reardon
patent: 1579734 (1926-04-01), Pearson
patent: 1597161 (1926-08-01), Kellogg et al.
patent: 2404930 (1946-07-01), Smith
patent: 2480969 (1949-09-01), Rosa
patent: 3229900 (1968-01-01), McCrory et al.
patent: 3802802 (1974-04-01), Greer

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