calculate_effective_porosity
Calculate effective porosity from total porosity and shale volume using PHIE = PHIT * (1 - Vshale). Determines pore space available for fluid flow by excluding shale-bound water, critical for reservoir evaluation.
Instructions
Calculate effective porosity from total porosity and shale volume.
PHIE = PHIT * (1 - Vshale)
Args: phi_total: Total porosity (fraction v/v, 0-1). vshale: Shale volume (fraction v/v, 0-1).
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| phi_total | Yes | ||
| vshale | Yes |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |