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Bubble point pressure data of the CO2-n-butane-n-decane, CO2-n-butane-n-butycyclohexane and CO2-n-butane-n-butylbenzene systems at 160 F. and 1400 psia
Cramer, Harlan C.
Cramer, Harlan C.
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Abstract
There are an estimated 300 billion barrels of crude oil in Known oil reservoirs in the United Stales which will not be recovered by primary or secondary production (National Petroleum Council, 1976). Some of this oil can be recovered by tertiary methods, one of which is carbon dioxide miscible flooding.
The purpose of this work was to determine experimentally the effect of the PNA distribution on the ability of CO2 to become miscible with hydrocarbon mixtures. Therefore, bubble point pressure data were taken on CO2 n-butane - C10 systems by the pressure - volume intersection method.
The results of this work concerning the PNA distribution are inconclusive. Therefore, it is recommended that the accuracy of the MMC predictions be tested by slim tube experiments. In addition, this effect should be studied at higher pressure, where any effect should be more pronounced and the relative amounts of light and intermediate hydrocarbons to heavy hydrocarbons should be closer to those of real crude oils. Finally, more information is needed to accurately determine interaction coefficients. It is suggested that an experimental program employing both bubble point pressure determination and sampling of the coexisting vapor phase be considered.
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M.S. University of Kansas, Chemical and Petroleum Engineering 1983
Date
1983-05-31
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University of Kansas
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cramer_1983_907404.pdf
Adobe PDF, 9.73 MB