APPARATUS AND METHOD OF DETERMINING CASING THICKNESS AND PERMEABILITY

A casing inspection device with magnets and flux sensors. The sensors provide measurements of absolute levels of magnetic flux that are indicative of changes in casing thickness and/or permeability. L'invention concerne un dispositif d'inspection d'enveloppe utilisant des aimants et d...

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Bibliographische Detailangaben
Hauptverfasser:	BAROLAK, JOSEPH GREGORY, GIRRELL, BRUCE I, LYNCH, JASON A, MILLER, JERRY E, WALTER, CHRIS J, SPENCER, DOUGLAS W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A casing inspection device with magnets and flux sensors. The sensors provide measurements of absolute levels of magnetic flux that are indicative of changes in casing thickness and/or permeability. L'invention concerne un dispositif d'inspection d'enveloppe utilisant des aimants et des capteurs de flux. Les capteurs fournissent des mesures des niveaux absolus de flux magnétiques qui indiquent des changements de l'épaisseur et/ou de la perméabilité de l'enveloppe.