Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent
1992-08-11
1994-06-07
Britts, Ramon S.
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
166386, 166321, E21B 3410
Patent
active
053181301
ABSTRACT:
A system for controlling a plurality of downhole apparatus comprises a housing inside which a biasing force is provided. An activating force can be received in the housing so that the activating force acts in opposition to the biasing force. The plurality of downhole apparatus are selectively operated in response to different magnitudes of the activating force acting in opposition to the biasing force. The present invention also provides a corresponding method.
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Britts Ramon S.
Druce Tracy W.
Gilbert III E. Harrison
Halliburton Company
Tsay Frank S.
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