Simulate transient three phase flow inside the 3 Phase Separator to observe phase separation inside the separator.
The Population Balance Model (PBM) model simulations have been initiated using a developed flow resulting from simulations with the Eulerian-Eulerian model for a more rapid convergence of the solution. The inlet has been applied with fluid flow rates and fluid properties of phases ( 2 Phase Separator and 3 Phase Separator). It is required to check possibility of phase inversion at the inlet, therefore, a pipe length of 6 m upstream the HP separator has been modeled. The inlet to cyclonic device is modeled as per actual. The porous media formulation has been used to model the cyclonic outlet device based on flow rate. Pressure drop across perforated baffle plates and foam breakers are modeled using porous formulation.
It can be concluded from the analysis that, a clear separation of liquid and gaseous phases is observed throughout the inlet pipe. Maximum Water in Oil (WIO) is calculated to be 2.3% v/v, most water droplets in Liquid HC is greater than 100 microns, maximum Oil in Water (OIW) is calculated to be 243 ppmw. Time averaged liquid carryover at gas outlet is calculated to be less than the 0.132 USG/MMSCF.