Use of an effective tool model in sonic logging data processing

Details Use of an effective tool model in sonic logging data processing Use of an effective tool model in sonic logging data processing

G - Physics

01

V

G01V 1/50 (2006.01)

Patent

CA 2608222

Methods and apparatus facilitating radial profiling of shear slowness are disclosed. According to some aspects of the invention, acoustic tool bias is accounted for in the calculation of radial profiles. According so some aspects, acoustic tool bias is accounted for by replacing acoustic tool structure with a resonance-impedance model. The resonance-impedance modeling according to principles of the present invention is applicable to vertical, deviated, and horizontal boreholes.

L'invention concerne des procédés et des dispositifs permettant de faciliter l'établissement du profil radial de la lenteur de cisaillement. Selon certains aspects de l'invention, les erreurs de justesse de l'outil acoustique sont prises en compte par substitution de la structure de l'outil acoustique par un modèle de résonance-impédance. Ce modèle de résonance-impédance selon la présente invention peut être appliqué à des trous de forage verticaux, déviés et horizontaux.

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