الفهرس 
Chapter 1 1. IntroductionOnly 14 pages are availabe for public view
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Abstract
This thesis studies the effect of confinement on the PVT properties of hydrocarbon
fluids in tight and shale reservoirs. The study finds that rich natural gases exhibit
more significant deviations in physical properties than lean natural gases when
confined. Confinement impacts gas compressibility factor, viscosity, and density,
with the greatest effect observed under high pressure, low temperature, small pore
radius, and rich gas composition. The PVT study shows that confinement results in
a depression in bubble point pressure, lower oil viscosity and density, and higher
gas solubility and formation volume factor, highlighting the importance of
considering capillary pressure and critical properties shift in understanding
hydrocarbon behavior in tight reservoirs.