Effects of Temperature and Aging Time on Oil Recovery in Carbonate and Sandstone Reservoirs using Sea-Water
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Carbonate, Sandstone, Oil Recovery, Aging Time, Temperature, Spontaneous Imbibition Test.
Abstract
The present paper summarizes a laboratory study to compare the effect of sea-water with different crude oils, temperature, and aging time on oil recovery in carbonate and sandstone reservoirs. The sandstone and carbonate cores were submersed in the brine solution and then placed in the oven with 70oC to simulate realistic reservoir conditions. The seawater was allowed to imbibe into the cores displacing oil out of the cores until equilibrium reached. The result shows that the impact of sea-water on oil recovery in sandstone was higher than carbonate. At higher temperature, the oil recovery was more moderate than low temperature.
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