310 Figure 11: Model cross-section of facies distribution The model was then populated with constant porosity, permeability, and acoustic‑impedance values assigned to each facies. These values were obtained from SLB’s Log interpretation chart book along with our experience working in highly heterogeneous salar environments. The values assigned to each facies are presented in ¡Error! No se encuentra el origen de la referencia.. These petrophysical properties form the basis for subsequent dynamic modeling, whereas the acoustic‑impedance distribution is required for evaluating drilling behavior and mechanical feasibility within the heterogeneous stratigraphy. Table 8: Properties assigned values per facies. The resulting model is intentionally simple but fit for purpose: it preserves the key depth heterogeneity that controls flow and mechanical behavior while remaining computationally tractable for sensitivity tests. This framework provides a controlled environment to evaluate Facies Effective Porosity (%) Permeability (mD) Acoustic Impedance (kPa.s/m) Fractured Halite (water‑ filled) 15 500 9300 Evaporites 2 0.005 9300 Target Sand 25 1000 14500 Fine–Medium Clastics 10 1 14500 Volcanics 5 10 20300
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