Wells – Processes – Separating material entering well
Patent
1984-04-16
1985-07-16
Suchfield, George A.
Wells
Processes
Separating material entering well
166267, 166268, E21B 4316, E21B 4340
Patent
active
045290377
ABSTRACT:
A method is disclosed for forming a carbon dioxide-containing mixture which is miscible with crude oil. The method comprises maintaining a mixture of crude oil and carbon dioxide in an extraction zone at a temperature and pressure such that multiple phase equilibrium is achieved therebetween. A carbon dioxide-rich phase that includes a mixture of carbon dioxide and hydrocarbons is withdrawn and is miscible with the reservoir crude oil when injected into the reservoir from which the crude oil was produced.
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Yellig et al., "Determination and Prediction of CO.sub.2 Minimum Miscibility Pressures", Journal of Petroleum Technology, Jan. 1980, pp. 160-168.
Henry, "Multiple Phase Generation During CO.sub.2 Flooding", SPE 8812, 1980.
Metcalfe, "Effects of `Impurities` on Minimum Miscibility Pressures and Minimum Enrichment Levels for CO.sub.2 and Rich Gas Displacements", SPE 9230, 1980.
Froning H. Robert
Yellig, Jr. William F.
Amoco Corporation
Cochran Robert R.
Suchfield George A.
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