Here are velocity aspects of wavelet energy absorption

WAVELET ENERGY ABSORPTION—2This is the second of three parts on the use of wavelet energy absorption in direct hydrocarbon detection.Energy attenuation in gas-filled poresIn most cases, the velocity of sound in partially saturated rock is significantly greater than in pure gas under the same pressure and temperature. What this means is that the wave-propagation process in rock is actually supersonic in relation to gas within pore space. Click here to enlarge imageHence (see for example Kondic´, et al.9), the instantaneous velocity of the wall of the pore can exceed the speed of sound in the gas within the pore. To illustrate this, let us analyze in detail the gas compression-d...

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