System for measuring stress in downhole tubulars

Details System for measuring stress in downhole tubulars System for measuring stress in downhole tubulars

E - Fixed Constructions

21

B

E21B 47/00 (2006.01) G01N 29/07 (2006.01)

Patent

CA 2677918

An apparatus for evaluating a tubular in a borehole of includes at least two electromagnetic acoustic transducers. The transducers are configured to generate and receive first and second acoustic waves in the tubular. A difference in velocity of the two acoustic waves is indicative of a stress field in the tubular.

La présente invention concerne un appareil conçu pour évaluer un élément tubulaire dans un puits de forage, lequel appareil comprend au moins deux transducteurs acoustiques électromagnétiques. Ces transducteurs sont conçus pour produire et recevoir des premières et des secondes ondes acoustiques dans l'élément tubulaire. Une différence de vitesse entre les deux ondes acoustiques indique un champ de contrainte dans l'élément tubulaire.

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