The effects of initial water saturation, S_wi, temperature, and gas/oil ratio (GOR) on solution-gas drive in heavy ols were studied. The viscosity and gravity of the stock-tank oil used in the tests were 560,000 cp and 8.7 deg API. In two tests, 4.0 and 5.2% S_wi were used. Five tests were conducted at 35 deg C, and one test was conducted at 46 deg C.
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