Steady-State Method: Suitable for medium-to-high permeability rock types, such as sandstone and conglomerate. By applying a steady pressure differential across the core, a fluid is forced through at a steady rate, and permeability is calculated based on Darcy's law.
Pulse Method: Suitable for low-permeability cores, such as shale, mudstone, and tight sandstone. A pressure pulse is momentarily applied to one end of the core, and the pressure decay over time is recorded at both ends.
Zealchon Electronic
