Equalizing apparatus for use with wireline-conveyable pumps

Details Equalizing apparatus for use with wireline-conveyable pumps Equalizing apparatus for use with wireline-conveyable pumps

1992-03-13

1993-11-30

Bui, Thuy M.

Wells

Valves, closures or changeable restrictors

Fluid operated

166332, E21B 3410, E21B 3414

Patent

active

052656799

ABSTRACT:
An equalizing apparatus is provided for use in a wellbore tool string which includes a wireline-conveyable source of pressurized fluid which selectively discharges fluid, a wireline-conveyable fluid-pressure actuable wellbore tool which is operable in a plurality of modes of operation including at least a running mode of operation with the wireline-conveyable fluid-pressure actuable wellbore tool in a running condition and a actuated mode of operation with the wireline-conveyable fluid-pressure actuable wellbore tool in an actuated condition, a flow path for communicating fluid from the wireline-conveyable source of pressurized fluid and the wireline-conveyable fluid-pressure actuable wellbore tool, and a wireline assembly which is coupled thereto for delivery of the wireline-conveyable source of pressurized fluid and the wireline-conveyable fluid-pressure actuable wellbore tool to a selected location within a wellbore.

REFERENCES:
patent: 3856085 (1974-12-01), Holden et al.
patent: 3887158 (1975-06-01), Polk
patent: 4113012 (1978-09-01), Evans et al.
patent: 4197879 (1980-04-01), Young
patent: 4422506 (1983-12-01), Beck
patent: 4440230 (1984-04-01), McGill
patent: 4796699 (1989-01-01), Upchurch
patent: 4886115 (1989-12-01), Leggett et al.

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