Downhole fluid separation system

Liquid purification or separation – Tangential flow or centrifugal fluid action – Multiple cyclone

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Details

2105121, 210170, 2104165, 166265, B01D 2126

Patent

active

057308713

ABSTRACT:
A fluid separation system is disclosed for installation within a wellbore that penetrates a production formation and a discharge formation. The system comprises a first pump and a second pump each operatively connected to a means for operation, such as a downhole electric motor, and a fluid separator for separating wellbore fluids from the production formation into a first stream and a lighter second stream. Wellbore fluids are introduced into the first pump, and are then conveyed to an inlet of the fluid separator. The second stream exiting the fluid separator is conveyed to an inlet of the second pump, and from the second pump to the earth's surface. Devices are included, such as wellbore packers, to isolate the discharge formation from the production formation, so that the second stream exiting the fluid separator directly enters the discharge formation.

REFERENCES:
patent: 4241787 (1980-12-01), Price
patent: 4673338 (1987-06-01), Jones
patent: 5296153 (1994-03-01), Peachey
patent: 5456837 (1995-10-01), Peachey
patent: 5482117 (1996-01-01), Kolpak et al.
Peachey and Matthews; "Downhole Oil/Water Separator Development," Journal of Canadian Petroleum Technology, vol. 33, No. 7, Sep. 1994.
Offshore (Inc. the Oilman), "Downhole Separator Uses Hydrocyclone, Zone Discharge," vol. 55, No. 6, Jun. 1995.

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