The analytical theory of one dimensional, dispersion free miscible displacement of oil by injection gas with nc component has shown that: the MMP is the lowest pressure at which any one of the initial oil, injection gas or crossover key tie lines becomes critical, which means that its length approaches to zero. In this paper, we propose a method for a solving multi component syst...

We report on the observation of controllable phase separation in a dual-species Bose-Einstein condensate with 85Rb and 87Rb. Interatomic interactions between the different components determine the miscibility of the two quantum fluids. In our experiments, we can clearly observe immiscible behavior via a dramatic spatial separation of the two species. Furthermore, a magnetic-field Feshbach reson...

In this paper we describe a multijunction microfluidic device for the injection of a substrate into an array of preformed plugs carried by an immiscible fluid in a microchannel. The device uses multiple junctions to inject substrate into preformed plugs without synchronization of the flow of substrate and the array of preformed plugs of reagent, which reduces cross-contamination of the plugs, e...

Traditional methods of coal seam gas drainage rely on the use of reservoir pressure reduction to promote gas desorption from the coal matrix. Studies in coal mining gas drainage operations, particularly in coal seams that are deeply undersaturated and have low permeability, found the rate of reservoir pressure reduction was prohibitively slow. In such conditions, lengthy production delays have ...

The merging of immiscible drops differs significantly from the miscible due to formation a liquid–liquid interface between drops. immiscibility requires four-phase contact point, where drops, gas, and substrate meet. We show that this point has its own unique dynamics, never studied beforehand. For very different scenarios, propagation distance follows scales with time like t12. A model balanci...

A three-phase flow model with hybrid miscibility constraints is proposed: three immiscible phases are considered (liquid water, liquid metal and gas) but the gaseous phase composed two miscible components (steam water non-condensable gas). The modelling approach based on building of an entropy inequality for system partial differential equations: once interfacial velocity given by user, uniquel...

LHCD experiments were carried out on the JET tokamak in ITER-relevant conditions which include: low (δ~0.22) and high (δ~0.45) triangularity ELMy plasmas, high safety factor (q95=4.0-6.8) and gaps between the separatrix and the antenna varying between 0.08m and 0.16m. Good coupling conditions, throughout the entire antenna, are found when the power injection is assisted by local D2 gas feed. Th...

One of the mostly used enhanced oil recovery methods is the injection of water or gas under pressure to maintain or reverse the declining pressure in a reservoir. Several parameters should be optimized in a fluid injection process. The usual optimizing methods evaluate several scenarios to find the best solution. Since it is required to run the reservoir simulator hundreds of times, the process...

Future exploitation scheme of an oil reservoir in each cycle within its production life depends on the profitability of the current extraction scenario compared with predicted recoveries that acquire with applying other available methods. In fractured reservoirs appropriate time to pass from the gas injection process into chemical enhanced oil recovery (EOR) firmly depends on the oil extraction...