Modeling of Drilling Fluids Flow in a Borehole for Drilling Optimization

摘要

Optimizing drilling operations requires methods to analyze the drilling process and the fluid pressure in the wellbore. Understanding of the hydrodynamic processes in the borehole while drilling, which are complicated by rotation, eccentricity and the non-Newtonian rheology of the drilling fluids are needed for this task. This problem received considerable attention in the science community [1-7]. Most theoretical studies assume fully developed flow in the annulus, which allows to model two dimensional fluid flows.