Physical models pf pressure diffusion can be split into two categories: Newtonian and Rheological (non-Newtonian) based on the fluid stress model.

Mathematical mdoels of pressure diffusion can be split into three categories: Linear, Pseudo-linear and Non-linear. 


Solvers for the above problems can be Numerical, Analytical or Hybrid.



1DL pressure diffusion of low-compressibility fluid in infinite homogeneous reservoirMultifrac horizontal well diffusion model
Line Source Solution (LSS) (model)Horizontal well diffusion model
1DR pressure diffusion of low-compressibility fluidHydraulic frac vertical well diffusion model
Anisotropic diffusion modelSlanted well model
Dual permeability diffusion modelLimited entry well model
Dual porosity diffusion modelWellbore storage models
Skin-factorDiffusion boundary models

Multi-layer diffusion model