E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/00 (2006.01) E21B 23/04 (2006.01) E21B 34/16 (2006.01) E21B 41/00 (2006.01)
Patent
CA 2101982
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.
Haliburton Company
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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