Slippage in shale based on acyclic pore model

摘要: Abstract A significant fraction of the pore-throat size in matrix a shale formation is smaller than 100 nm. Nanofluidics, field that deals with transport properties sub-100-nm conduits, indicates fluid flow enhanced for this range size. However, it unclear how slippage at pore scale (single conduit) controls effective core (∼1 in.). The present study reviews models gas and liquid flows inside single conduit based on experimental theoretical studies literature. It then investigates enhancement formations using an acyclic model, which represents connectivity space as captures mercury injection capillary pressure measurements (drainage). presented terms governing parameters such wettability. This presents size, whose corresponding equal to scale, three samples. numerical simulations indicate depends pressure. In addition, measured permeability higher nominal permeability, often referred Hagen–Poiseuille no slippage. results have major implications reservoir characterization standard petrophysical measurements.