Downhole fluid separation system

Details Downhole fluid separation system Downhole fluid separation system

2005-07-05

2005-07-05

Neuder, William (Department: 3672)

Wells

Packers or plugs

With central conduit and fluid port to space outside

C166S194000

Reexamination Certificate

active

06913077

ABSTRACT:
A method of separating fluids that actuate a downhole tool from well fluids is disclosed. The assembly permits equalization or circulation through the running string for delivery of the downhole tool to the desired location. The circulation passage is closed and the clean fluid is displaced into the downhole tool by pressure applied to a movable barrier, At the end of the clean fluid displacement, a lateral port is opened to allow retrieval without pulling a wet string.

REFERENCES:
patent: 2681114 (1954-06-01), Conrad
patent: 2839142 (1958-06-01), Huber
patent: 3015280 (1962-01-01), King
patent: 3032116 (1962-05-01), Barry
patent: 3447605 (1969-06-01), Uliczky
patent: 5366019 (1994-11-01), Brooks
patent: 5718292 (1998-02-01), Heathman et al.
patent: 1 149 980 (2001-10-01), None

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