E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/00 (2006.01) E21B 41/02 (2006.01) E21B 47/01 (2006.01)
Patent
CA 2337221
The existence and rate of corrosion in a section of a well tubing or well casing is determined and monitored by installing at predetermined locations as the string is placed in the well bore, sections of pipe that have been fitted with an array of piezoelectric transducers and a microprocessor that controls signals going to and from each array of transducers and signals going to and received from controls and instrumentation apparatus located at the earth's surface. The microprocessors at varying locations along the string are electrically connected to the surface control and instrumentation apparatus by conductor cables and/or by wireless means using the pipe string as the conductive path for electrical signals.
Pour déterminer et contrôler la présence de corrosion dans un train de tiges, on intercale au montage, en des points déterminés, des sections de tube (20) munies d'un ensemble de transducteurs piézo-électriques (26) et d'un microprocesseur (28) qui commande d'une part des signaux à destination et en provenance de l'ensemble de transducteurs, d'autre part des signaux à destination et en provenance de commandes et d'instruments en surface. Les microprocesseurs montés en divers points du train de tiges sont reliés électriquement aux commandes et instruments de surface par des câbles conducteurs et/ou un système radio utilisant le train de tiges comme chemin conducteur pour la transmission de signaux électriques.
Kirby Eades Gale Baker
Saudi Arabian Oil Company
LandOfFree
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