Determination of Carbon Dioxide Solubility in Oil during Interaction with a Compound Gaseous Phase

摘要

A thermodynamic method for the determination of the solubility of a mixture of carbon dioxide and hydrocarbon gases in oil is elaborated on the basis of stage-oil separation. A method for the calculation of Henry’s constants for gases that are dissolved in oil and their temperature extrapolation are shown. Effecive thermodynamic properties are estimated for carbon dioxide and C_1–C_8 hydrocarbon gases dissolved in oil. A thermodynamic model that satisfactorily describes the separation of gas from oil is created and may be included in a more complex calculation model of carbonate scaling during the exploitation of oil deposits.