SHEAR WAVE VELOCITY DETERMINATION USING MULTI-POLE WAVE

摘要

A method for determining a formation shear wave velocity for a subterrane an formation is provided. The method includes propagating a multi-pole acoustic signal in a borehole using an acoustic transmitter and receiving an acoustic waveform fr om the mufti-pole acoustic signal at at least one receiver. The method further includes processing the acoustic waveform to determine a borehole guided wave velocit y and processing the borehole guided wave velocity to determine the shear wave velocity of the subterranean formation. Isolation, suppression or enhancement of any particular harmonics of the acoustic signal is not required.