E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/5
E21B 49/00 (2006.01) E21B 33/124 (2006.01) E21B 49/08 (2006.01)
Patent
CA 1112559
CASING ASSEMBLY PROBES ABSTRACT OF THE DISCLOSURE A probe or instrument to be moved through casing assemblies having ports therein at different levels selec- tively to take samples and/or measurements at these levels. The probe is an elongate body which is lowered through the casing assembly by a suitable cable. A stop on the body co- operates with a stop in the casing assembly at each level to position a port in the body in registry with a port in the casing at this level. A seal on the body is pressed against the adjacent casing assembly wall to isolate the registering ports from the interior of the casing at this time.
339147
Mcfarlane James D.
Patton Franklin D.
Fetherstonhaugh & Co.
Westbay Instruments Ltd.
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