نتایج جستجو برای: Ultimate recovery

تعداد نتایج: 231655  

Journal: :SSRN Electronic Journal 2012

2013

We propose a relatively simple, accurate and flexible approach to forecasting the distribution of defaulted debt recovery outcomes. Our approach is based on mixtures of Gaussian distributions, explicitly conditioned on borrower characteristics, debt instrument characteristics and credit conditions at the time of default. Using Moody’s Ultimate Recovery Database, we show that our mixture specifi...

This study examines the effects of change in the concentrations of monovalent and divalent ions in the polymer-contained surfactant solution on the macroscopic behavior of viscous-modified surfactant waterflooding in heavy oil reservoirs. Salts that are used in this set of floods were sodium chloride, magnesium chloride, and calcium chloride. The results indicate that four different ranges ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
mahdi jafari amir badakhshan vahid taghikhani davood rashtchian cirous ghotbi

the experimental study and modeling of gravity drainage during water alternative gas injection, wag process, in carbonate rock for one of the iranian off-shore reservoir at lab-scale were carried out. the mechanism of gravity drainage during the wag process, and its contribution to the oil recovery in the fractured carbonate reservoirs were also studied. in the wag process alternatively gas is ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
benyamin yadali jamaloei riyaz kharrat

this study examines the effects of change in the concentrations of monovalent and divalent ions in the polymer-contained surfactant solution on the macroscopic behavior of viscous-modified surfactant waterflooding in heavy oil reservoirs. salts that are used in this set of floods were sodium chloride, magnesium chloride, and calcium chloride. the results indicate that four different ranges of s...

Journal: :Proceedings of the Royal Society of Medicine 1934

Journal: :journal of chemical and petroleum engineering 2011
eghbal sahraei mohammad amin safarzadeh seyyed alireza tabatabaei nejad

fractional flow analysis confirms the advantages of surfactant alternative gas injection (sag) in enhanced oil recovery, but an adsorption phenomenon that has been affected by several factors, weakens the effectiveness of sag injection. in this study, the effects of sacrificial agent, gas phase, and surfactant concentration on adsorption density on silica mineral were investigated by static and...

Eghbal Sahraei Mohammad Amin Safarzadeh Seyyed Alireza Tabatabaei Nejad,

Fractional flow analysis confirms the advantages of surfactant alternative gas injection (SAG) in enhanced oil recovery, but an adsorption phenomenon that has been affected by several factors, weakens the effectiveness of SAG injection. In this study, the effects of sacrificial agent, gas phase, and surfactant concentration on adsorption density on silica mineral were investigated by static and...

2009
Xuejun Wu Jun Lu

Few people would deny that the world runs on oil. Oil, regarded as the blood of industry, may cause economic crises, and even lead to conflicts and wars. Three applicable models and several feasible policies are presented to settle the problem. We devise the Irreversible Depletion Model, and use global statistics data in logistic regressions to predict the total ultimate oil recovery. Relying o...

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