A compositional wellbore/reservoir simulator to model multiphase flow and temperature distribution

A fully-coupled thermal multiphase wellbore flow model for use in reservoir simulation

“…For thermal simulations, a homogeneous (without slip) model is used. The recent work of Pourafshary et al (2009) extends these models. Specifically, these authors developed a thermal compositional formulation which they implemented into a coupled reservoir/wellbore simulator.…”

“…Several fully-coupled numerical models for thermal wellbore flow have been presented (e.g., Stone et al, 1989Stone et al, , 2002Pourafshary et al, 2009) within the context of general purpose reservoir simulation. These formulations are more general than the models discussed above.…”

“…Flow from the reservoir into the wellbore (in the case of a production well) provides source terms for the wellbore flow model. Previous formulations have been developed for both black-oil models (Stone et al, 1989(Stone et al, , 2002, in which the system is represented in terms of oil and gas 'pseudocomponents' and water, and fully compositional models (Stone et al, 2002;Pourafshary et al, 2009), in which the system contains an arbitrary number of components (e.g., methane, ethane), pseudocomponents and water.…”

Stabilizing gas lift optimization with different amounts of available lift gas

“…In this calculation, different correlations were used. These are the most accurate ones based on different literature (Brill and Beggs, 1991b), (Takacs, 1989), (Pourafshary, 1979), (Bendakhlia and Aziz, 1989), (Renanto and Economides, 1998), (Patton et al,Septamber 19 80). In order to apply the effect of gas lift, the gas lift effect is added by considering a different gas liquid ratio (GLR) in the above injection point.…”

Thermal–hydraulic measurements and modelling of the brine circuit in a geothermal well

“…They usually focus on one application domain like gas/oil production (Pourafshary et al, 2009), (Livescu et al, 2010), geothermal wells (Guðmundsdóttir, Jonsson and Palsson, 2012) or CO 2 injection (Wiese et al, 2010) and their particular phenomena (heat transfer, two-phase flow regimes, phase transition etc.). A common and obvious approximation for geothermal wells is the use of pure water property functions which is inappropriate for high-salinity brines.…”