E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/12 (2012.01) E21B 47/013 (2012.01) E21B 47/06 (2012.01)
Patent
CA 2469363
Methods, apparatus, and systems for obtaining information regarding a formation, a casing, or fluid within the casing are provided which utilize an interrogator and one or more sensing devices attached to a casing in a wellbore. The interrogator is located within and is typically movable inside the wellbore. The sensing device, which is positioned and fixed in an opening cut in the casing, includes a housing and a sensor with associated electronic circuitry. The housing of the sensing device is typically adapted to provide a hydraulic seal with the opening in the casing. The interrogator and sensing device communicate in a wireless manner.
Bailey Robert
Jundt Jacques
Salamitou Philippe
Schlumberger Canada Limited
Smart & Biggar
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