Introduction to Miscible Displacement — Lesson 1

This lesson covers the concept of flow through porous media, focusing on Darcy's law, Ergun equation, and various transport mechanisms. It introduces the concept of miscible displacement, where a fluid is injected into a porous medium and mixes with the fluid already present. The lesson also explains the effects of Poiseuille's flow and Knudsen diffusion on the effective permeability of the medium. It further discusses the dispersion of a solute in porous media, differentiating between dispersion and diffusion. The lesson concludes with the application of Fick's second law to understand the diffusion of a pulse in a static system.

Video Highlights

01:09 - Explanation of miscible displacement
05:12 - Discussion on dispersion of a solute in porous media
13:55 - Application of Fick's second law

Key Takeaways

- Darcy's law and Ergun equation are fundamental to understanding flow through porous media.
- Miscible displacement occurs when a fluid is injected into a porous medium, mixing with the fluid already present.
- Poiseuille's flow and Knudsen diffusion can affect the effective permeability of the medium.
- Dispersion refers to the spreading of a solute in porous media, while diffusion refers to the movement of molecules from a region of higher concentration to one of lower concentration.
- Fick's second law can be used to understand the diffusion of a pulse in a static system.