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Showing 1 to 7 of 7 for “"Oil swelling"”.
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Mass Transfer of Alkane Solvents-CO2-Heavy Oil Systems in the Absence and Presence of Porous Media Under Reservoir Conditions
For a thin heavy oil reservoir where thermal methods are not applicable due to heat loss to over- and under-burdens, gas injection is considered to be an effective alternative. One of the major mechanisms associated with gas injection is the molecular diffusion of dissolved gas(es) which reduce the …
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Utilization of Carbonated Water Injection (CWI) as a Means of Improved Oil Recovery in Light Oil Systems: Pore-Scale Mechanisms and Recovery Evaluation
… solubility value is observed for both water and oil phases when the pressure increases in the range of P = 0.7–10.3 MPa. Furthermore, it was found that the solubility of CO2 reduces with increased temperature. In addition, the results obtained from swelling/extraction tests revealed that the oil …
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An Experimental Study of Carbon Dioxide Dissolution into a Light Crude Oil
Carbon dioxide (CO2) dissolution into a heavy oil has been extensively investigated as an effective solvent-based enhanced heavy oil recovery method for several decades. However, fewer attempts have been made to study CO2 dissolution into a light crude oil mainly because of possible occurrence of …
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Investigating the factors impacting the success of immiscible carbon dioxide injection in unconventional shale reservoirs: An experimental study
… hydrocarbon volumes that they bear. Enhanced oil recovery (EOR) techniques have been suggested to increase recovery from shale reservoirs. One of the most promising EOR methods is gas EOR (GEOR), most notably carbon dioxide (CO<sub>2</sub>). Not only can CO<sub>2</sub> increase oil recovery by …
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An Experimental Study of CO2 Dissolution into a Heavy Oil Without or With a Porous Medium
… CH4, and C3H8) in the Colony and McLaren heavy oils were experimentally studied. The diffusivities of CO2 in the Colony heavy oil without or with an unconsolidated porous medium at different initial pressures and a constant temperature were measured and compared. In addition, the temperature …
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Optimum Timing for CO2-EOR After Waterflooding and Soaking Effect on Miscible CO2 Flooding in a Tight Sandstone Formation,
… contrast between the injected CO2 and the crude oil. The oil recovery is limited after CO2 BT, which is attributed to the gas channeling problem. In continuous CO2 tertiary flooding, the previously injected water helps to control the mobility of the subsequently injected CO2. On the other hand, …