Fig. 8 | Scientific Reports

Fig. 8

From: Integrative rock physics and computer vision analysis of elastic properties and pore aspect ratios in Brazilian pre-salt carbonates

Fig. 8

Application of the Kuster-Toksöz model to well B4, showing the relationship between porosity and elastic properties. (a) Bulk modulus (left) and shear modulus (right) plotted against porosity. Theoretical bounds (Hashin-Shtrikman upper and lower) and effective medium curves for various pore aspect ratios are shown for comparison, and (b) compressional wave velocity (\(V_P\), left) and shear wave velocity (\(V_S\), right) as functions of porosity. Theoretical curves are again plotted for different aspect ratios. The distribution of the data illustrates the sensitivity of elastic velocities to porosity and pore geometry.

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