Patent ID: 7392135

Claim:
A method comprising: detecting arrival times of a first wave at each of a plurality of receivers, wherein: the plurality of receivers is disposed within a well bore in a plane that is substantially perpendicular to an axis of the well bore; and the plurality of receivers comprises at least one pair of receivers substantially diametrically opposed about an axis of a well bore tool; determining a first place in a well when the arrival times of the first wave are substantially the same at each of the plurality of receivers; estimating effective receiver sensitivities and equalization factors for each of the plurality of receivers using a Stoneley wave amplitude received by the plurality of receivers at the first place in the well; storing the estimated effective receiver sensitivities and equalization factors for one or more of the plurality of receivers for correcting the amplitudes of at least one subsequent wave received by the plurality of receivers; and correcting amplitudes of a second wave received by the plurality of receivers using the estimated effective receiver sensitivities and equalization factors for each of the plurality of receivers.