An improved method for estimating minimum miscibility pressure through condensation–extraction process under swelling tests

Determination and evaluation of minimum miscibility pressure using various methods: experimental, visual observation, and simulation

“…Visual observation is performed through images captured as videos or pictures similar to the method conducted previously by Wang (1986). This method has also been performed by Abdurrahman et al (2015). This method is aimed to observe visually the change in color of the oil as the pressure increases.…”

“…The MMP should be obtained when the interface of the CO 2 -rich phase and the CO 2 vapor disappears. According to Abdurrahman et al (2015), this method is obviously not accurate and should be regarded only as an approximate method to estimate the MMP.…”

“…Wang (1986) suggested that the MMP can be estimated visually during a swelling test experiment. The method has also been done by Abdurrahman et al (2015) to predict the MMP in their experiments. In the present work, the MMP is also proposed to be predicted by visual observation.…”

“…The MMP can be determined either by laboratory experiments or numerical studies. Several researchers have introduced experiments methods for predicting the MMP such as Yellig and Metcalfe (1980), Christiansen and Haines (1987), Wang (1986), Hagen and Kossack (1986), Rao (1997), Tsau et al (2010), Abdurrahman et al (2015), Alomair et al (2015), and Rahimi et al (2017). Some other methods have also been introduced by Cronquist (1978), Johnson and Pollin (1981), Sebastian et al (1985), Glaso (1985), Ahmed (2000), and Stalkup and Yuan (2005).…”

“…However, each individual method has distinctive disadvantages in yielding the accurate value as discussed by Danesh (1998), Johns and Orr (1996), Ayirala and Rao (2006), and Tsau et al (2010). Several researchers have tried simultaneous methods in order to reduce the uncertainties including Thomas et al (1994), Elsharkawy et al (1992), Ayirala and Rao (2006), Tsau et al (2010), and Abdurrahman et al (2015). In their study, they compared the results using two or three methods to yield the more reliable MMP.…”