Production tool

Details Production tool Production tool

2005-03-22

2005-03-22

Thompson, Ken (Department: 3672)

Wells

With eduction pump or plunger

C416S199000, C415S102000

Reexamination Certificate

active

06868903

ABSTRACT:
A production tool for use in heavy oil production is provided. Operating to provide for better inflow of oil and sand to a bottom hole rotating pump, the production tool prevents sand up conditions and keeps the well cellar and the walls of the casing clean to ensure longer periods between workovers. The production tool has a cylindrical member with at least one helical fin extending substantially to the inner radius of the casing, and a gear reducer which drives the cylindrical member at a reduced rotation from input from the rotor of the bottom hole rotating pump. The rotational motion of the cylindrical member in conjunction with the sense of the helical fin cause bore effluence to move to the intake of the rotating pump, effecting constant inflow.

REFERENCES:
patent: 762808 (1904-06-01), Cushing et al.
patent: 1600440 (1926-09-01), White
patent: 2184496 (1939-12-01), Hale
patent: 3077932 (1963-02-01), Gehrke
patent: 5209293 (1993-05-01), McNaughton et al.

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