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Correlations of Phase-Boundary Pressures of Condensate Fluid Systems with Compositions Modified by Added Butane.

PB224768

Publication Date	1973
Personal Author	Baker, B. A.; Eilerts, C. K.
Page Count	64
Abstract	A windowed cell was used to measure the phase-boundary pressures of two related series of gas-condensate fluid mixtures. Heavy hydrocarbon parts of the mixtures were distillation fractions of a Gulf Coast condensate. Intermediates used with the distillation fractions were normal hydrocarbons in the butane-heptane range. The natural gas used contained approximately 90 percent methane and inert hydrocarbons. Normal butane was added to the mixtures incrementally to determine the effectiveness of such a change in composition for lowering phase-boundary pressure. The experimental range of temperatures was 50 to 280F. All the experimental data were correlated, so that the pressure required to maintain light oils mixed with natural gas in the single phase might be computed for secondary recovery applications. Two correlations developed contained independent variables to represent natural gas content, disparity of properties of components comprising the mixtures, and temperature. A fourth variable, for one correlation only, was the quantity of normal butane added to the original mixtures. This correlation with 15 coefficients is estimated to be accurate to 135 psi. (Author)
Keywords	Phase diagrams Hydrocarbons Natural gas Butanes Methane Condensates Liquid phase Vapor phase Regression analysis Pressure Gases Phase studies
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99F - Physical & Theoretical Chemistry
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared by Bureau of Mines, Bartlesville, Okla. Bartlesville Energy Research Center.
Document Type	Technical Report
Title Note	Rept. of Investigations.
NTIS Issue Number	197324

Correlations of Phase-Boundary Pressures of Condensate Fluid Systems with Compositions Modified by Added Butane.

Correlations of Phase-Boundary Pressures of Condensate Fluid Systems with Compositions Modified by Added Butane.
PB224768

Publication Date	1973
Personal Author	Baker, B. A.; Eilerts, C. K.
Page Count	64
Abstract	A windowed cell was used to measure the phase-boundary pressures of two related series of gas-condensate fluid mixtures. Heavy hydrocarbon parts of the mixtures were distillation fractions of a Gulf Coast condensate. Intermediates used with the distillation fractions were normal hydrocarbons in the butane-heptane range. The natural gas used contained approximately 90 percent methane and inert hydrocarbons. Normal butane was added to the mixtures incrementally to determine the effectiveness of such a change in composition for lowering phase-boundary pressure. The experimental range of temperatures was 50 to 280F. All the experimental data were correlated, so that the pressure required to maintain light oils mixed with natural gas in the single phase might be computed for secondary recovery applications. Two correlations developed contained independent variables to represent natural gas content, disparity of properties of components comprising the mixtures, and temperature. A fourth variable, for one correlation only, was the quantity of normal butane added to the original mixtures. This correlation with 15 coefficients is estimated to be accurate to 135 psi. (Author)
Keywords	Phase diagrams Hydrocarbons Natural gas Butanes Methane Condensates Liquid phase Vapor phase Regression analysis Pressure Gases Phase studies
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99F - Physical & Theoretical Chemistry
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared by Bureau of Mines, Bartlesville, Okla. Bartlesville Energy Research Center.
Document Type	Technical Report
Title Note	Rept. of Investigations.
NTIS Issue Number	197324