Rigorous characterizations of fluid contents, rock/fluid interactions, and pore-size
distributions are crucial in the development of unconventional resources. As a nonintrusive …

Water-oil displacement is an important process that occurs in a shale matrix after hydraulic
fracturing and in water-based enhanced oil recovery. Current understanding of this …

Wettability is a fundamental parameter significantly influencing fluid distributions,
saturations, and relative permeability in porous media. Despite the availability of several …

As oil-wet or mixed-wet reservoirs are more frequently discovered, there is a growing
attention in the influence of wettability on petrophysical responses. One of the challenges …

Water imbibition is an important process influencing early oil production after hydraulic
fracturing of shale reservoirs. A major fraction of the injected fracturing fluid remains in the …

Matrix wettability, the affinity of a fluid to a pore surface, is considered a key driver in
recovery factor. In unconventionals, wettability and, ultimately, its role in matrix deliverability …

In borehole nuclear magnetic resonance (NMR) logging of unconventional reservoirs,
important fundamental parameters such as surface relaxation, bulk fluid relaxation, pore …

Surfactants have been used for decades to enhance the production of hydrocarbons from oil-
bearing subterranean formations. Production improvement is tied to optimization of the …

In unconventional reservoirs, borehole NMR T1-T2 measurements provide reliable means
for identifying fluid types and estimating associated fluid saturations. Advanced relaxation …

Several studies have shown that rock-fluid interactions in tight rocks are influenced by the
natural wettability behavior of the various pore systems. Studying the water/oil displacement …