Geological storage of acid gas has been identified as a promising approach to reduce
atmospheric carbon dioxide (CO 2), hydrogen sulfide (H 2 S) and alleviate public concern …

Capillary pressure plays a critical role in driving fluid flow in unsaturated porous (pores not
saturated with liquids but also containing air/gas) structures. The role and importance of …

Representative elementary volumes (REVs) and heterogeneity are key concepts in
continuum multiphase flow, yet their manifestation from the pore‐scale and associated …

Finding an accurate method for estimating permeability aside from well logs has been a
difficult task for many years. The most commonly used methods targeted towards regression …

The Groningen gas field in the Netherlands has been a major source of natural gas in
Europe for the past few decades. There are approximately 350 wells drilled in the field that …

The oil/water transition zone, particularly pronounced in low-permeability formations with
small pore diameters and high capillary pressure, contains a substantial portion of original …

The paper considers the process of imbibition in a porous medium under the action of
capillary forces in microgravity. A description of experiments on the repeated imbibition of an …

Studies on stress sensitivity of relative permeability in the laboratory were mostly carried out
by varying overburden pressure at constant pore pressure (PP). However, in a real oilfield …

The characterization of capillary transition zone (TZ), which contains large amount of oil, is
challenging, because of the rock types in it affecting the fluid flow behavior. The thickness of …

Natural fractures are important for oil and gas production in tight reservoirs that are usually
characterized by ultralow matrix porosity and permeability. Natural fractures can be …