..., namely: robustness through the impact of injecting the formulation below optimal salinity conditions (for case #1), potential of a salinity gradient strategy to mitigate a surfactant retention (for case #2), and study of the viscous fingering effects at core scale for extra-heavy oil (for case #3...

... bitumen. Experimental studies were conducted for emulsion phase behavior and viscosity for mixtures of Athabasca bitumen, organic alkali, and NaCl brine. Experimental variables included brine salinity, alkali concentration, water-to-oil (WOR) ratio, temperature, and sample-aging time. The phase behavior...

... and decreasing the water relative permeability. Our results show that reducing a salinity of the injected fluid allows mineral dissolution reactions to raise effective permeability compared to that achieved by conventional waterflooding. Injection and production pressure affect mineral dissolution/precipitation...

... other reservoir characteristics are also suitable: low reservoir temperature and low water salinity allow the use of standard HPAM polymer, and high permeability is beneficial for injectivity. Moreover, the reservoir is highly heterogeneous, which has presented some challenges to the process. Initially...

... Abstract In this paper, we present the results of an experimental investigation on the effect of pH and salinity on slotted liner performance in terms of sanding and retained permeability for heavy oil thermal production. This work is an advancement of the existing knowledge in the literature...

... coreflood Upstream Oil & Gas relative permeability Modeling & Simulation viscosity enhanced recovery polymer oil saturation flood society of petroleum engineers asp flooding mobility control Oil Recovery salinity saturation reservoir permeability polymer flooding Injection Rate...

... the efficiency of alkaline-free surfactant-polymer processes in the context of heavy oil reservoirs. The present investigation is focused on a Canadian heavy oil (14°API and 1400 cP) in representative reservoir conditions (high permeability sandstone, temperature of 35°C, low salinity). A dedicated synthetic...

... Salinity and divalency in carbonate reservoirs restricts polymer flooding applications. Higher oil viscosity also limits its application. In this work, we investigated the potential of viscoelastic surfactant (VES) in recovering heavy oil in complex reservoirs where steam-flooding and polymer flooding...

... biodegradation, reduction in temperature and pressure through erosion of the overburden above the McMurray, and lowering of water salinity. The weakening of buoyant forces would enable capillary pressure to increase the average water saturation and to redistribute water and hydrocarbon so that water...

... of clay intensifies the adsorption phenomenon but its impact on two phase flow behavior and recovery depends on the brine salinity. Maximum adsorption occurred under direct contact of sand surface and asphaltene solution when no water film was present, which resulted in more oil-wet conditions, thereby...