... been identified as one of the most important processes for safe CO2 storage as the immobile gas can be kept away from the cap rock. CO2 is highly soluble in brine and solubility trapping is essentially the impetus for CO2 storage in saline aquifers. As CO2 dissolves in brine, it decomposes into +H...

... and temperature variations. The Saskatchewan Research Council conducted laboratory experiments to evaluate and address these problems. Reservoir cores were tested for permeability damage measurements using both injection and produced brine. Different additives [i.e., potassium chloride (KCl) with/without...

... brine breakthrough time Abstract In the Long Coulee Glauconite F reservoir in southern Alberta, where acid gas (98% CO 2 , 2% H 2 S) has been injectedsince 2002, H 2 S breakthrough in producing wells occurredsubsequent to the breakthrough of CO 2 . It was hypothesized that the preferential...

... 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...

... 800 meters, dissolution of CO2 into brine causes density of the mixture to increase. If the corresponding Rayleigh number of the porous medium is enough to initiate convection currents, the rate of dissolution will increase. Early time dissolution of CO2 in brine is mainly dominated by molecular...

... Upstream Oil & Gas flow in porous media enhanced recovery Fluid Dynamics Modeling & Simulation experiment 2 flue gas experiment hysteresis displacement pressure drop saturation relative permeability curve connate water saturation water saturation simulator flood Brine...

... compositions of oil / brine emulsions and the viscosity of heavy oil and bitumen (4, 5) . In addition, the NMR logging tool is used in reservoir characterization, measuring properties such as permeability (6–9) , porosity (8, 9) , mobile and immobile fluids (10–13) , and fluid saturations (14) . In comparison...

... and as it contacts the oil - will raise the effective in-situ IFT from the nominal value as measured traditionally. This change will have a corresponding influence on the oil displacement efficiency. A laboratory study of the interfacial tension behaviour of oil/surfactant-brine systems was conducted. The effective...

... plugging of pore throats within the reservoir or possible lateral movement of contaminants on the surface. This paper is part of a larger study on clay characterization with low-field NMR. Of particular interest in this study is the interaction of clays with high salinity brines. Clays are typically...

..., where both water and oil flow through the gelled media simultaneously. Thus, the main objective of this study was to evaluate gel performance during simultaneous injection of brine and oil. This research represents further studying of Alcoflood-935-Chromium(III)-Chloride (AF-935-Cr(III)-Cl) gel...

... to work already done in developing water-based drilling fluids primarily aimed at reducing APL in slim-hole wells while maintaining efficient carrying capacity. The study includes the development and testing of viscosified brines and bentonite-based muds. Fifty-three fluid compositions were tested...

... a water flood 1 . 2 . 3 . The present laboratory study compares and contrasts the two processes, based on tertiary floods in TFY sandstone core. Lowering the interfacial tension between reservoir brine and oil to the point of microemulsification has been proved to be tremendously effective in reducing...

... gravel-pack assembly gravel pack drilling fluids and materials drilling fluid property assembly drill-in fluid drilling operation perforated shroud completion design placement concentric annular gravel-packing system brine concentric annular sand control breaker system filter cake...

... 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...

... extraction drilling fluid chemistry concentration ion concentration upstream oil & gas dissolution drilling fluid selection and formulation mineral saturation drilling fluid property carbonate sample resistivity standard sandstone brine core sample soluble mineral well logging...

... Abstract A modified analytical model for field application of improved waterflooding through brine concentration is presented. Based on several laboratory studies, many researchers suggested changing the brine concentration during waterflooding offered viable options for improved oil recovery...

... and synthetic brine. The rate of oscillation was evaluated as a parameter to examine the role of mass transfer rates. Viscosity is reported in addition to the compositional data expressed in terms of the components: maltenes, asphaltenes and coke. The data has direct applicability to recovery processes...

.... The general procedure used for the flow experiments is presented as follows; 31. Determine the initial permeability of the medium to brine. 2. Prepare the gelling solution and inject several pore volumes of gelant into the crushed carbonate-pack. 3. Wash the inlet and outlet tubing and shut-in the system...

... reservoir simulation nisku aquifer upstream oil & gas fluid dynamics boundary condition brine variation instability dissolution reservoir characterization co 2 rayleigh number ultimate dissolution modeling & simulation convection concentration flow in porous media...

... thickness flow in porous media different salinity pressure distribution pure water brine 1 PAPER 2004-248 Analytical Modelling of CO2 Sequestration in Saline Aquifers I. DIRIK, A. ALTINTAS, S. BULBUL, F. GUMRAH Petroleum and Natural Gas Engineering Department, METU, Ankara, Turkey This paper...