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

1978-02-16

1980-06-10

Freeh, William L.

Pumps

Including means to prevent foreign material settling from...

By application of separate fluid

F04B 2100, F04B 3900

Patent

active

042070368

ABSTRACT:
A subsurface pumping installation in which solvent or diluent is introduced to the well from the surface and blends with the well fluid to enable it to be pumped more readily. The diluent is introduced through a power tubing which may be either concentric with the casing or concentric with a production tubing within the casing. A mixture of well fluid and diluent is conducted to the surface through an annulus which surrounds the power tubing. The diluent is injected into the well fluid in a blending chamber inside the pump, where it blends effectively without loss into the formation around the pump.

REFERENCES:
patent: 1533440 (1925-04-01), Marty
patent: 3146940 (1964-09-01), McCrory et al.
patent: 3418938 (1968-12-01), Vincent
patent: 3802802 (1974-04-01), Greer
patent: 4056335 (1977-11-01), Secrist
patent: 4089626 (1978-05-01), Hill etal.

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