Patent ID: 8694297

Claim:
A computer-implemented method for modelling fluid flows within a porous medium traversed by at least one well comprising: a) using a first computer implemented flow simulator for simulating flow of fluids within the porous medium from numerical productivity indices relating fluid pressures to fluid flow rates and a second computer implemented flow simulator for simulating flow of fluids in a wellbore region from boundary conditions of the wellbore region; b) simulating fluid flows within the medium from the numerical productivity indices with the first simulator over a predetermined time interval between times T 0 and T 1 and determining therefrom updated boundary conditions for the second simulator; c) simulating fluid flows in the wellbore region using the second simulator over the predetermined time interval using the updated boundary conditions and determining updated numerical productivity indices for the first simulator; and d) modelling the fluid flows within the porous medium for a period of time between T 0 and T n where T n >T 1 , by repeating b) and c) for successive time intervals between T 0 and T n .