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Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 17–19, 2008
Paper Number: PETSOC-2008-085
... cacl 2 surfactant solution ift nacl concentration waterflooding ift value mgcl 2 brine upstream oil & gas recovery value precipitation concentration salinity capillary number concentration range micromodel surfactant flooding experiment enhanced recovery ultimate recovery...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 12–14, 2007
Paper Number: PETSOC-2007-012
... Abstract The difficulty of determining the effective interfacial tension (IFT) in porous media limits the modeling and prediction of surfactant flood performance. Surfactant dilution, adsorption and partitioning - occurring as the aqueous solution is injected into the reservoir...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 12–14, 2007
Paper Number: PETSOC-2007-134
... entrapment chemical flooding methods injection enhanced recovery permeability ift emulsion surfactant experiment upstream oil & gas mobility recovery heavy oil droplet waterflooding reservoir oil recovery alkali emulsification 1 PAPER 2007-134 Potential for Alkali-Surfactant Flooding...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 13–15, 2006
Paper Number: PETSOC-2006-068
... enhanced recovery nitrogen oil saturation water saturation oil saturation increase fluid dynamics relative permeability ift interfacial tension upstream oil & gas displacement air injection modeling & simulation flow in porous media oil recovery gas injection method...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 7–9, 2005
Paper Number: PETSOC-2005-022
... Abstract Ultra-low interfacial tension (IFT) between crude oil and brine is critical for successful enhanced oil recovery by alkaline/surfactant/polymer (ASP) flooding. With the right surfactant, this can be obtained at low and economic concentrations. However, maintaining low IFT during...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 7–9, 2005
Paper Number: PETSOC-2005-123
... oilfield in China. The oil recovery is improved by about 20% OOIP over recovery by water flooding. The interfacial tension (IFT) of ASP/crude oil is one of the most important factors that control the effectiveness of ASP flooding. The effects of alkali, surfactant, polymer and oil properties on IFT were...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 8–10, 2004
Paper Number: PETSOC-2004-077
... Abstract Capillary (spontaneous) imbibition recovery in naturally fractured reservoirs can be enhanced by adding surfactant into injected water. Selection of proper surfactant type and concentration is essential in this process as the reduction in IFT by addition of surfactant does not always...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 8–10, 2004
Paper Number: PETSOC-2004-147
... reservoirs could be simulated. Sixteen ASP solutions were prepared and used in ASP flood tests. Based on the results of ASP flood tests, the effects on tertiary oil recovery of NaOH concentration and of the balance between the IFT reduction and viscosity increase were discussed. For heterogeneous models...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 10–12, 2003
Paper Number: PETSOC-2003-139
... acids in crude oil. Such generated surfactants can be absorbed at the oil-water interface and dissolved in the bulk aqueous phase and/or in the oil phase as well, depending on their affinities for the aqueous and oil phases. The distributed surfactants change the interfacial tension (IFT) between...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 10–12, 2003
Paper Number: PETSOC-2003-186
... Abstract This paper reports the investigation of oil-water IFT behavior when the chromatographic separation of the surfactant mixture occurs during surfactant/alkaline corefloods. In this work, surfactant and alkaline concentrations in the effluent of corefloods and oil-water interfacial...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 10–12, 2003
Paper Number: PETSOC-2003-142
... tension (IFT) and mobilize the residual oil in a reservoir. On the other hand, the reservoir rock surface will become more negatively charged at higher hydroxyl ion concentrations. These ions adsorbed onto the rock surface not only deter the adsorption of anionic chemicals, such as anionic surfactants...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 12–14, 2001
Paper Number: PETSOC-2001-135-EA
... This reference is for an extended abstract only. A full paper was notsubmitted for this conference. ABSTRACT In this study the Gas-Oil IFT is used to determine the MMP of a crude oiland a volatile oil by gas injection. The method involves injection of a drop offluid, say oil, into gas phase...

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