Modeling of non-newtonian fluids in subterranean reservoirs

摘要

A computer-implemented reservoir prediction system, method, and software are provided for modeling the behavior of non-Newtonian fluids in subterranean reservoirs while accounting for shear-rate dependent viscosity and permeability reduction with a skin zone characterized by a traditional skin factor and an apparent skin factor. A non-Newtonian fluid injection pressure or a non-Newtonian fluid injection rate is computed at steady-state responsive to reservoir data associated with a subterranean reservoir, injection data for a non-Newtonian fluid, and fluid data for the non-Newtonian fluid. The shear-rate dependent viscosity can further be applied to a well model in numerical reservoir simulation to improve the well model.

主权项

1. A computer-implemented method for modeling the behavior of non-Newtonian fluids in subterranean reservoirs, the method comprising:
(a) receiving reservoir data associated with a subterranean reservoir; (b) receiving injection data for a non-Newtonian fluid, wherein receiving the injection data includes receiving skin data; (c) receiving fluid data for the non-Newtonian fluid; and (d) computing a non-Newtonian fluid injection rate at steady-state based on the received data while accounting for shear-rate dependent viscosity and permeability reduction with a skin zone characterized by a traditional skin factor and an apparent skin factor.