... Abstract A robust multiphase equilibrium calculation algorithm with pressure and enthalpy (PH) specifications, i.e., an isenthalpic algorithm, plays an important role in the compositional simulations of steam-based enhanced oil recovery (EOR) applications (such as steam and solvent co-injection...

.../SF process and mainly related to the different amount of enthalpy injected. During the CSS period a lower steam quality results in lower oil recovery but at a better efficiency compared to a high steam quality. In the steam flood phase the high steam quality results in both higher recovery and higher...

... (2) Q I ,   c u m   = V s ,   c u m   × 349.4 × [ ( 1 − x ) × h L + x × h V ] A × H n   h L = saturated liquid enthalpy at steam plant discharge pressure, Btu/lb   h V = saturated vapor enthalpy at steam plant...

... flow rate equation is provided for critical and subcritical flow regions. Calculated and measured rates are compared and their relative uncertainties are assessed. production control sagd flow rate griston enhanced recovery upstream oil & gas enthalpy pressure ratio thermal method...

...; that is, collecting flow rate, enthalpy, and other data that are in alignment with pressure and temperature measurements. For instance, Goyal et al. (1980) showed that small errors in the mass flow rate, pressure, and enthalpy at the wellhead may easily cause BHP estimation errors well in excess of ±10...

... steam turbine; however, optimisation with higher pressures and enthalpies resulted in a triple flash, condensing steam turbine for the second development. This will be the largest single cylinder geothermal steam turbine in the world. The project is currently under construction with commercial operation...

... in that grid block is used. Boundary Conditions The upstream boundary condition imposed on the solution scheme depends on whether a constant wellhead injection rate or pressure is specified. Constant Well-Head Rate Boundary In this case, the unknowns are the wellhead pressure and enthalpy...

... Abstract A new technique is described to analyze fluid production from geothermal reservoirs with multiple feedpoints. The analysis method can be used to determine the enthalpy and flow rates for reservoirs that are liquid in the undeveloped state but two-phase when produced. The analysis...

... based on mole fractions. The component enthalpies are calculated from heat capacity and vaporization enthalpy correlations. The phase enthalpies are then obtained using a mixing rule. Isenthalpic Flash Calculation (9b) f w = 1 − f o The surface tension between the liquid...

... the computed discharge temperature ( T 2 ) to determine the enthalpy change of the compressed gases, and the reversible work of compression 5 . (4) Δ H ′ = p r R T [ ( d B 0 d T r − B 0 T r ) + ω ( d B 1 d T r − d B 1...

... in the areas of mathematical models, treatment of nonlinearities, formulation methods, and methods of solution used are presented and discussed in detail. variation steam-assisted gravity drainage enthalpy equation reservoir simulation thermal method abdalla grabowski transmissibility farouq ali...

... application of produced steam lift as a steamflood production technique. well depth thermal method enthalpy heat transfer upstream oil & gas production rate reservoir surveillance pressure gradient flow rate psia steamflood production logging kpa enhanced recovery production control...

... reservoir temperature profile history sensitivity study initial temperature reservoir simulation enthalpy thickness prieto geothermal field depletion geothermal field upstream oil & gas calculation parameter approach reservoir characterization mexico government modeling & simulation...

... with the model. Explanations of behavior during production and injection should improve our understanding of the use of carbon dioxide in the oil field. conduction equation carbon dioxide wellhead pressure enthalpy production logging injector specific enthalpy co 2 injection upstream oil & gas...

... and stable gas components concentration gradients along structural features, indicating physical processes other than radioactive decay are governing radon concentration at the wellhead. Transect tests in the liquid-dominated reservoirs show correlation between radon concentration and fluid enthalpy...

... The equation which relates the quality of steam at the bottom of the ΔΖ interval to the quality of the steam at the top of the ΔZ interval is given by: ABSTRACT A TI 59 program is presented which calculates downhole steam quality, steam enthalpy, and heat injection rate as a function...

... the intermediate zone into the central zone is calculated. The new temperature profile in the intermediate zone is then computed, and the average enthalpy of the influx water into the central zone is then estimated. The average temperature and pressure in the central zone are then calculated and a new step...

... porous medium mass transfer low porosity run two-phase geothermal reservoir geothermal reservoir Efficiency porosity fraction laboratory simulation flow rate thermodynamic condition saturation Upstream Oil & Gas Simulation enthalpy initial liquid saturation vapor quality...