PetroCalcHub
PetrophysicsRock Properties

Gassmann Saturated Rock Bulk Modulus

Ksat=Kd+αB2ϕ/Kf+(αB−ϕ)/KsαB=1−Kd/Ks\begin{aligned}K_{\mathrm{sat}}&=K_d+\frac{\alpha_B^2}{\phi/K_f+(\alpha_B-\phi)/K_s}\\\alpha_B&=1-K_d/K_s\end{aligned}

Tabular solver

Run the same equation across multiple cases and compare results in one table.

CaseK_dGPaK_sGPaK_fGPaphifractionResultAction
1Pending
2Pending
3Pending