Place of publication: United States, Ann Arbor; ISBN=978-1-369-37203-8
M.S.
Petroleum Engineering
The Petroleum Institute (United Arab Emirates)
2016
Due to the extreme small pore throat radius and high pore throat ratio, fluid flow does not obey Darcy's law in low permeability reservoirs, it is non-Darcy flow associated with threshold pressure gradient. Threshold pressure gradient is the level of pressure gradient that has to be attained to enable fluid to overcome the viscous forces and start to flow.