Lorenzo Perozzi deleted Amplitude results.tex  over 9 years ago

Commit id: 1fcda42007f65cfc6a27ea0cb32bb1de07334bd7

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\subsubsection{Signal amplitude}  Signal amplitude (Fig. \ref{fig:fig5} - bottom) shows a rapid decrease in the pressure range 5-7 MPa and once the phase transtion is crossed, the decrease is smoother. This trend is valid for CH sample for both $P$- and $S$-wave signal, however, for the CA sample, the amplitude decreases steadily and there is any detected transition phase.\\  Both samples being very tight, variations in velocity and signal amplitude are rather small. Nevertheless, the CH sample shows a larger sensitivity to CO$_2$ phase change rather thanthe CA sample. This is attributed to its larger porosity and permeability values (Table 1). In the next section, we explore how the higher sensitivity of the CH unit affects the time-lapse seismic response for a VSP monitoring program.         

Gasmmann.tex  Gassmann's model.tex  figures/fig4b3/fig4b3.png  Amplitude results.tex  VSP.tex  VSP methodology.tex  Geological model1.tex