... reservoir, is presented. The genetic algorithm produced an operable process, which could be described as a new combination of pre-existing concepts. The process offers material improvements in thermal bitumen supply costs, as well as recovery factor. Major reductions in the physical steam/oil ratio (SOR...

... microbiology bitumen methanogenesis greenhouse gas emission sulfate densification climate change sulfide concentration complex reservoir concentration reaction sulfide reduction sulfate-reducing bacteria pond surface sulfate reduction rate oil sand sulfate reduction upstream...

... Abstract Due to the favorable effects of CO 2 , such as oil viscosity reduction, oil swelling, and surface tension reduction, CO 2 injection has been established as an effective technique in enhanced oil recovery for light to medium oils. However the utilization of CO 2 for improving...

... plug permeability reduction psi ob 2000 1 PAPER 2009-110 Investigation on the Effect of Overburden Pressure on Vuggy Carbonate Oil Reservoir Core Properties M. E. SHAFIEE, A. KANTZAS University of Calgary This paper is accepted for the Proceedings of the Canadian International Petroleum...

... also noticed in 2003 and 2004. expansion steam-assisted gravity drainage observation well steam chamber steam injection rate characteristic operation enhanced recovery complex reservoir bitumen reduction oil rate sagd oil production rate cumulative steam axis unit oil sand...

... depends on the temperature, pressure and fluids properties of a certain reservoir. Many factors have been found contributing to the oil recovery in CO 2 flooding. These mainly include: Low interface tensions, Viscosity reduction, Oil swelling, Formation permeability improvement, Solution gas flooding...

... reduction upgrading scale inhibition wax inhibition viscosity reduction viscosity kpa propane toluene enhanced recovery flow assurance vapex process oilfield chemistry asphaltene remediation paraffin remediation scale remediation hydrate remediation wax remediation oil sample...

... production logging shear rate surfactant flow behavior index generalized reynolds number micelle prediction correlation reduction concentration drilling fluid property drilling fluid formulation concentration increase drilling fluid chemistry drilling fluids and materials drag...

... been developed. Stable reduction in permeability to other fluids was observed as the plug withstood 42,500 kPa/m (about 1,800 psi/ft) pressure gradients. Criteria are defined for field application of this blockage phenomenon. Introduction An emulsion is a dispersion of two mutually insoluble liquids...

... the variance in relative permeability character between injection and production cycles (CSS operations) Testing to evaluate possible permeability reductions due to thermal dissolution, migration or mineral transformation issues Sand control and liner design for optimum performance of horizontal SAGD...

.... On the other hand, for small spacing the capital associated with the project is high. This paper explores the optimal horizontal spacing between the wells in a Bottom-up SAP well pair. Introduction SAGD relies primarily on heat supplied to the reservoir by steam for reduction in the viscosity of oil1...

... pressure values, the shape of vapor chamber differs from conventional model and it is more piston-like. Residual oil saturation declines as a result of gas-oil interfacial tension reduction by means of solvent concentration alteration. Diluted oil may not be totally produced as a result of capillary hold...

... of the solvents tested (C1 through C8 plus a commercial diluent). The vapor pressure of steam and hexane are very similar, figure 1. upstream oil & gas steam-assisted gravity drainage sagd process bitumen canadian international petroleum conference production rate viscosity hexane reduction...

... and error process but after a little learning with the simulator quick and obvious conclusions can be drawn regarding bits types and designs and pull depths. drilling parameter drilling operation rop strength drilling time personnel rock strength reduction communication simulation pore...

... upstream oil & gas enhanced recovery conventional geometry oil recovery sap economics reduction csor recovery cross flow heavy oil sagd solvent recovery steam-solvent combination solvent retention producer communication modeling recovery time canadian petroleum technology...

... fluid compatibility pressure gradient mechanism permeability upstream oil & gas surfactant concentration emulsion injection chemical treatment blockage experiment porous medium reduction oilfield chemistry emulsion rock/fluid interaction concentration pore throat fluid...

... upstream oil & gas reduction bitumen fraction water saturation residual oil saturation oil saturation relative permeability curve brine permeability permeability relative permeability saturation enhanced recovery exhibition initial oil saturation endpoint relative permeability...

... of the hole by approximately 20 percent overriding this discrepancy monodiameter well exhibits the ultimate diametric efficiencies a constant inside diameter (ID) from the top of the well to its TD significantly reducing the casing size. In Offshore the reduction in casing sizes allows a reduction in riser...

.... This alternative presents several advantages in comparison with its aboveground counterpart such as: The increase of the productivity index of the wells, the reduction of the lifting and transportation costs from de underground to the refining center, the production of more valuable products due...

.... concentration raney-type nickel determination water bath catalyst reaction nickel fcc gasoline downstream oil & gas hydrogenation time trial preparation reduction sulfur concentration raney nickel sulfur fossil fuel isopropanol catalysis alternative method experiment 1PAPER 2005-045...