Halliburton Energy Services, Inc.

João Vicente Gonçalves Rocha

Chung Lung Chang

Xiang Wu

Ruijia Wang

Yao Ge

Qingtao Sun

Brenno Caetano Troca Cabella

Pablo Vieira Rego

Marco Aurelio Luzio

Methods, systems, and program products are disclosed for implementing acoustic logging and determining wellbore material characteristics. In some embodiments, a method may include determining a polar differential signal for each of one or more pairs of azimuthally offset acoustic measurements within a wellbore. A reference azimuth is identified based, at least in part, on comparing the polar differential signals to a modeled bonding differential signal within a target response window. The method further includes determining differences between an acoustic measurement at the reference azimuth and acoustic measurements at one or more other azimuths and determining a wellbore material condition based, at least in part, on the determined differences.

Through tubing acoustic measurements

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Petrópolis, Brazil

João Vicente Gonçalves Rocha