F013 Laboratory Characterisation of Porous Permeable Media with Aligned Penny Shaped Cracks at Ultrasonic Frequencies J. Sothcott* (University of Southampton) A.I. Best (University of Southampton) & C. McCann (University of Southampton) SUMMARY The aim of this work is to investigate if the pulse echo technique can be used to provide an accurate set of velocity and attenuation measurements on a suite of artificial rocks containing aligned penny shaped cracks. The pulse echo method was used to make accurate measurements of the P- and S-wave velocities (Vp Vs) and attenuations (Qp-1 and Qs-1) at ultrasonic frequencies (750 kHz) on porous and


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