Wells – Valves – closures or changeable restrictors – Fluid operated
Reexamination Certificate
2007-03-28
2008-10-21
Wright, Giovanna C (Department: 3672)
Wells
Valves, closures or changeable restrictors
Fluid operated
C166S386000, C166S373000, C166S321000
Reexamination Certificate
active
07438130
ABSTRACT:
A method and apparatus for actuating a downhole tool is provided. The apparatus of the present invention includes a remotely energized actuator device that facilitates storage of energy needed to actuate a downhole tool after the device is placed downhole. By energizing the tool downhole, surface exposure to potential safety hazards is reduced.
REFERENCES:
patent: 4771831 (1988-09-01), Pringle et al.
patent: 5101904 (1992-04-01), Gilbert
patent: 5984014 (1999-11-01), Poullard et al.
Galloway Bryan P.
Schlumberger Technology Corporation
Van Someren, PC
Wright Daryl R.
Wright Giovanna C
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