.... pvt measurement co 2 concentration oil production injection period 1 composition diffusion coefficient test bed injection period production period experiment enhanced recovery oil phase modeling & simulation flow in porous media dissolution ch 4 viscosity fluid dynamics...

... oil production viscosity reservoir waterflooding upstream oil & gas PAPER 2009-053 Determination of Increase in Pressure Drop and Oil Recovery Associated with Alkaline Flooding for Heavy Oil Reservoirs M. ARHUOMA, D. YANG University of Regina M. DONG University of Calgary R. IDEM University...

... into heavy oil, localized entrapment of oil and solvent due to heterogeneity and/or water blockage, and asphaltene precipitation are also illustrated using these pore-level visualization experiments. Introduction The large viscosity contrast between injected miscible solvent and reservoir fluids leads...

... Abstract The vapor extraction (VAPEX) process, as a non-thermal process, may be suitable for the recovery of heavy oil and bitumen. In this process, the injected solvent diffuses into the heavy oil/bitumen, reduces its viscosity, and drains it to the producing well. The VAPEX process is more...

... Abstract Modern petroleum engineering practices require accurate reservoir phase behavior properties to simulate and optimize various production and processing operations. Among these reservoir fluid properties, viscosity is an important property during the design of pipelines, production...

... gases, such as CO 2 , cannot be achieved under reservoir conditions; In addition, heavy oil production is constrained by very high oil viscosity, unconsolidated sand, and bottomwater, which all present special technical challenges. Recently, immiscible CO 2 flooding has generated interest as a method...

... such as water blockages and swelling of formation clays, the use of hydrocarbon based fluids for fracturing remains popular despite the cost difference. In general successful fracturing fluids must be gelled (increase in viscosity) and broken (decrease in viscosity). Completion companies use three main chemical...

... temperatures. Athabasca bitumen, whose viscosity at reservoir temperature is over 1 million mPa.s is essentially immobile. A significant fraction of the world's conventional crude oil and most of the world's bitumen is contained in the Western Canadian Sedimentary Basin. Bitumen comprises the majority...

... that were performed to develop steam-solvent injection strategies focused on horizontal well applications and to estimate the effect on the process of a number of reservoir and fluid parameters. Solvents and steam when used together in a cyclic mode provide synergistic effects such as reduced viscosity...

... simulations but not so much in the field or scaled model experiments. steam chamber upstream oil & gas complex reservoir bitumen proportion sagd capillary tube model permeability viscosity bundle non condensable gas mechanism enhanced recovery equation oil sand thickness velocity...

... aperture, matrix height and permeability, well spacing and fluid viscosity on the Critical Production Rate (CPR), Maximum Possible Withdrawal Rate (MPWR) and G-L interfaces in both matrix and fractures. Experimental results have shown that higher pumping rates cause higher difference between liquid levels...

... Abstract Vapor Extraction (Vapex) process is a viable and environmentally friendly alternative to currently used thermal methods. It involves injection of vaporized hydrocarbon solvents into the reservoir to decrease the heavy oil viscosity by dilution and de-asphalting. In high pressure...

... interact during thermal production of heavy oil and bitumen reservoirs, which complicates the interpretation of 4D seismic data: changes in oil viscosity, fluid saturations, pore pressure, etc. The workflow is based on the generation of a geological model inspired from a real field case of the McMurray Fm...

... 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...

... there is an indication of some aquifer support, little data are available to analyze its impact. Due to the tight nature of the reservoir, the required water flooding injectivity pressures would be impractically high. However, fluids with much lower viscosities than water, such as carbon dioxide or hydrocarbon gases...

... petroleum accumulation in the world, are deposits of heavy oil and bitumen which mostly occur at depths that are suitable for in-situ bitumen extraction. At original condition, the viscosity of Athabasca bitumen is over one million centipoises. The key parameter to produce this bitumen is to lower its...

... ended in April 1975. solvent test bitumen solvent process saturation enhanced recovery thermal method diffusivity mcmurray formation equation viscosity drainage time sagd porosity steam-assisted gravity drainage grosmont reservoir residual oil saturation recovery process...

... Abstract The viscosity of pure hydrocarbons was correlated using a simple function based on the fluid density. The correlation has three adjustable parameters, a compressed state density, ρ s °, an empirical parameter, c 2 , that scales the viscosity response to fluid expansion, and another...

... and lowering oil viscosity. The present investigation reports the results of extensive experimental and theoretical work (with the aim of computer software, ECLIPSETM) to determine the viscosity and swelling factor changes of the live oil in the Cheshmeh Khoshk reservoir at southern of Iran (Ilam District...

..., 4 solvents, permeabilities between 1.5 and 5,400 Darcies, viscosities between 90cP and 800,000 cP, condensing and non-condensing conditions. The oil production rates in the data set span a 30,000 fold range. The correlation only requires the raw bitumen viscosity and a grain (or pore) size...