Acoustic Arrays in Rock Physics

P034 ACOUSTIC ARRAYS IN ROCK PHYSICS Abstract Most acoustic measurements made in Rock Physics laboratories are taken over the length of a cylindrical core specimen. Figure 1a b shows how three traces are usually recorded: - A single P-wave trace - Two orthogonally polarized S-wave traces. 1 N. AL-JABARI 1 D. BOWEN 1 D.P. HAND 2 J.D.C. JONES 2 W.N. MACPHERSON 2 W.S.O. RODDEN 2 and A.R. WESTERMAN 1 1 Heriot-Watt University Department of Petroleum Engineering Riccarton Edinburgh EH14 4AS UK 2 Heriot-Watt University Physics Department Figure 1: a) normal core acoustic measurements b) P and S waveforms in Rock