We report the observation of low-energy, low-momenta collective oscillations an exciton-polariton condensate in a round “box” trap. The are dominated by dipole and breathing modes, ratio frequencies two modes is consistent with that weakly interacting two-dimensional trapped Bose gas. speed sound extracted from oscillation frequency smaller than Bogoliubov sound, which can be partly explained i...

Density distribution within the Salton Sea geothermal system, of fluids ranging from 20°C to 325X, has been computed using chemical and thermal data from geothermal production well tests and curve-fit models of Na-Ca-K chloride solution properties. Density corrections can easily be made to iO.01 g/cm3 for solute effects of each of the dominant chloride salts as well as pressure above vapor satu...

Abstract Proppant crushing and embedment in hydraulically-induced fractures is a major drawback to the recovery of unconventional oil/gas geothermal energy production. This study provides grain-scale analysis fracture evolution mechanisms proppant crushing, rock damage during embedment, influence realistic reservoir/fracture fluid on behaviour packs subjected in-situ stresses using discrete ele...

Les dŽcouvertes de pŽtrole ou de gaz dans des conditions sŽvres de tempŽrature (plus de 150¡C) ou de pression (plus de 50 MPa) se comptent dans plusieurs bassins ˆ travers le monde. En mer du Nord, on prŽvoit de mettre en production des gisements dont les conditions de fond vont jusqu'ˆ 110 MPa et 190¡C. Ces caractŽristiques constituent un dŽfi pour la prŽdiction des propriŽtŽs des fluides de ...

In this paper, a mathematical model of the process fluid filtration in underground layered formations is considered and numerically solved as raw material for generating electrical energy. The objects filter are anomalously structured Newtonian fluids. Computational algorithms built using iteration, direct streaming differential sweep methods. An analysis numerical solution problem has been car...

system at Coso. This investigation is Part of an ongoing study being perCos0 is one of several high-tempeformed through an agreement betwen rature geothermal systems associated California Energy Company and the Earth with recent volcanic activity in the Science Laboratory Division/university Basin and Range province. Within this of Utah Research Institute. fracture-dominatedsystem, temperatnres...

We examine the motion of liquid injected into a liquid dominated geothermal reservoir, focusing on the situation in which the injected liquid has different temperature and composition from the reservoir fluid. As a result of these differences, the injected liquid will typically be of different density to the reservoir fluid, and will therefore spread through the reservoir under gravity. Owing t...

Abstract The problems of degradation on oil production can be solved by chemical EOR (Enchanced Oil Recovery) methods, polymer injection is the one kind methods. When fluids injected in to reservoir then it will increase sweep efficiency and fixed mobility ratio fluids. sample that tested this experiments biopolymer. Besides xanthan gum extracted using bacterial, side plant contained a compound...

Abstract As renewable energy, geothermal can contribute substantially to the energy transition. To generate electricity or harvest heat, high-saline fluids are tapped by wells of a few kilometres and extracted from hydrothermal reservoirs. After heat exchanger units have been passed by, these reinjected into reservoir. Due pressure temperature differences between subsurface surface, as well coo...

Three different reservoir simulators that utilize both two-phase and three-phase microemulsion phase behavior models are used to model surfactant–polymer flooding determine compare their results. Different in each simulator describe the physical of injected chemicals into reservoir, which raises need benchmark The polymer surfactant were constructed verified on a 1D scale further 3D model. Fina...