Carbon dioxide (CO2) flooding is one of the most important and used enhanced oil recovery (EOR) method because it does not only increase efficiency but also as an underground CO2 storage. It considered a very complex involves knowing fluid phase behavior with different concentrations. should be noted that swelling (volume increase) dissolution carbon has significant effect on recovery. When thi...

Oil return from the evaporator to the compressor crank case is a critical requirement affected by the refiigerantllubricant properties, gas velocities and piping geometry. Refrigerant R-22 has been successfully used with mineral oil in residential air-conditioning and heat pump systems (AC/HP). R-407C and R-41 OA are two chlorine free HFC refrigerant candidates to replace R-22. This paper descr...

Grieve oil field, discovered in 1954, is located in southeastern Wind River Basin, central Wyoming. This Lower Cretaceous, valley-fill and channelized, Muddy sandstone reservoir is a stratigraphic/structural trap with an average structural dip of 15 degrees. Multiple recovery mechanisms have contributed to produce more than 30 million barrels of premium light sweet crude, including gas expansio...

Most of the synthetic compounds are prepared and processed in the liquid state, i.e. in solution or in the molten state. Detailed knowledge on this state is therefore indispensable. In particular it is essential to know the limits of complete miscibility with a low molecular weight solvent as a function of temperature, pressure and composition. Furthermore it is often mandatory to be acquainted...

Abstract Low oil recovery which is very predominant in shale reservoirs has stimulated petroleum engineers to investigate the applications of enhanced methods these formations. One such application injection gases into formation stimulate increased recovery. In many gas flooding projects performed field, miscibility injected usually most desired displacement mechanism, and carbon dioxide (CO 2 ...

The influences of short chain branching (SCB) and molecular weight (Mw) of low density polyethylene (LDPE) on its melt miscibility with polypropylene (PP) were investigated by rheological techniques. Rheological measurement and different data-treatment techniques as well as rheological models suggest that blends of PP with LDPE of high SCB (22 CH3/1000 C) are miscible at all compositions. Howev...

Methane is widespread in the Universe, and its occurrence intimately connected with that of water, often as clathrate hydrate, likely priority form which methane stored icy moons, water-rich exoplanets but also depths Earth’s oceans. Arrangement stability range crystalline structures, decomposition conditions, miscibility resulting dense fluid mixtures are crucial for modeling static dynamic pr...

The theoretical and practical aspects of polymer-polymer miscibility in the solid amorphous state are reviewed. The polymers include homopolymers and both random and block copolymers. Although present theoretical treatments of polymer-polymer miscibility all contain the random mixing hypothesis and are thus not applicable to mixtures that involve specific interactions between the components, mo...

I consider the effect of a small concentration of a molecule, such as a short-chain alcohol, on the miscibility transition temperature of a giant plasma membrane vesicle. For concentrations sufficiently small such that the system can be treated as a dilute solution, the change in transition temperature is known to depend upon the extent of the molecule's partition into the coexisting liquid-dis...

This paper describes an original approach to the analysis and prediction of graylevel textures gen erated as equilibrium states of Gibbs Markov random elds This approach is physically mo tivated by the analogy that exists between the graylevel textures and the miscibility patterns of multiphase ows The physics of the situation is captured using miscibility matrices that are related to the co oc...