E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 34/10 (2006.01) E21B 23/04 (2006.01) E21B 23/08 (2006.01) E21B 34/06 (2006.01) E21B 41/00 (2006.01)
Patent
CA 2061576
Abstract Of The Disclosure A differential pressure actuating system for downhole tools provides endless operation by the use of the differen- tial pressure between two isolated zones of a well as a power source for the tool. That differential pressure is applied across a power transfer element to operate the downhole tool.
Manke Kevin R.
Schultz Roger L.
Skinner Neal G.
Haliburton Company
Manke Kevin R.
Schultz Roger L.
Skinner Neal G.
Swabey Ogilvy Renault
LandOfFree
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