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An improved method for calculating CO2 minimum miscibility pressure based on solubility parameter

2012; Elsevier BV; Volume: 98-99; Linguagem: Inglês

10.1016/j.petrol.2012.06.002

1873-4715

Glória Meyberg Nunes Costa, Paulo Sérgio Rocha, Alessandra Leal Chagas Ribeiro, Paulo Roberto Freire de Menezes, Rui Lima, Paulo Ubiratan Oliveira Costa, Eduardo de Almeida Rodrigues,

CO2 Sequestration and Geologic Interactions

The gas injection process is one of the most efficient enhanced recovery methods in the petroleum industry. A key parameter of a gas injection design is the Minimum Miscibility Pressure (MMP); the pressure at which the local displacement efficiency approaches 100%. Based on the concept of estimated solubility parameter calculated with the oil saturation pressure and reservoir temperature, properties readily available for any reservoir, a new methodology was developed to compute MMP for pure CO2 and good results are observed when compared with experimental data.