Minimization of Gibbs free energy in compositional reservoir simulation

Journal Article · Fri Feb 01 00:00:00 EST 1985 · Soc. Pet. Eng. AIME, Pap.; (United States)

DOI:https://doi.org/10.2118/13520-MS· OSTI ID:5458988

Trungenstein, J A

This paper describes the formulation of vapor-liquid phase equilibrium as a linearly constrained minimization problem. It also describes a second minimization problem designed to test for local phase stability. Vectorized unconstrained minimization techniques can be used to solve this pair of constrained minimization problems. The methods of this paper are applied to liquid-vapor equilibria for mixtures both far from and near to the phase boundary. Significant improvements over the standard successive substitution algorithm are demonstrated.

• Research Organization: Exxon Production Research Co.
• OSTI ID: 5458988
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE13520
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
COMPUTERIZED SIMULATION
PHASE STUDIES
OIL WELLS
ALGORITHMS
ENHANCED RECOVERY
FREE ENTHALPY
MISCIBLE-PHASE DISPLACEMENT
RESERVOIR ENGINEERING
THERMAL EQUILIBRIUM
TWO-PHASE FLOW
ENERGY
ENGINEERING
EQUILIBRIUM
FLUID FLOW
FLUID INJECTION
MATHEMATICAL LOGIC
PHYSICAL PROPERTIES
RECOVERY
SIMULATION
THERMODYNAMIC PROPERTIES
WELLS
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