Micro-annulus detection using lamb waves

A method, apparatus and computer-readable medium for identifying a micro- annulus outside a casing in a cemented wellbore. The attenuation of a Lamb wave and a compressional wave is used to determine a presence of a micro-annulus between the casing and the cement.

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Bibliographische Detailangaben
Hauptverfasser:	EDWARD DOMANGUE, DOUGLAS J. PATTERSON, ALEXEI BOLSHAKOV
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method, apparatus and computer-readable medium for identifying a micro- annulus outside a casing in a cemented wellbore. The attenuation of a Lamb wave and a compressional wave is used to determine a presence of a micro-annulus between the casing and the cement.