Computing A0 Mode Attenuation For Cement Evaluation In Cased Wells

Abstract: a method and system acoustic logging operations. the method may comprise selecting a transmitter to a casing offset for logging operations, wherein the transmitter is disposed on a logging tool, insonifying at least a part of a casing with the transmitter at an angle of incidence and collecting one or more waveforms with an array of receivers disposed on the logging tool. the method may further comprise identifying one or more wave mode travel times from the one or more waveforms, selecting one or more wavelets from the one or more waveforms, and identifying an attenuation of a lamb wave mode based at least in part on the one or more wave mode travel times and the one or more wavelets.

Inventor(s): Amit Padhi, Qingtao Sun, Chung Chang

CPC Classification: E21B47/16 (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS)

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