Hydraulic system for electronically controlled downhole testing

Details Hydraulic system for electronically controlled downhole testing Hydraulic system for electronically controlled downhole testing

1992-07-02

1993-10-12

Dang, Hoang C.

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

166 651, 166 664, 166319, E21B 3410

Patent

active

052517039

ABSTRACT:
A hydraulic system is provided for an electronically controlled downhole testing tool. The tool operates on a pressure differential between the well annulus and a substantially atmospheric pressure dump chamber defined in the tool. Power passages communicate a power piston with the well annulus and the dump chamber. Normally closed electric solenoid control valves are disposed directly in the power passages to control fluid flow therethrough. A pressure regulator regulates the pressure differential across the electric solenoid control valves.

REFERENCES:
patent: 3856085 (1974-12-01), Holden et al.
patent: 4113012 (1978-09-01), Evans et al.
patent: 4266606 (1981-05-01), Stone
patent: 4347900 (1982-09-01), Barrington
patent: 4375239 (1983-03-01), Barrington et al.
patent: 4378850 (1983-04-01), Barrington
patent: 4422506 (1983-12-01), Beck
patent: 4711305 (1987-12-01), Ringgenberg
patent: 4796699 (1989-01-01), Upechurch
patent: 4856595 (1989-08-01), Upchurch
patent: 4866607 (1989-09-01), Anderson et al.
patent: 4880060 (1989-11-01), Schwendemann et al.
patent: 4896722 (1990-01-01), Upchurch
patent: 4915168 (1990-04-01), Upchurch
patent: 5050681 (1991-09-01), Skinner

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