Integrated Multiphase-Flow Modeling Technique Yields Accurate Downhole Pressure Predictions

This work presents an integrated multiphase flow model for downhole pressure predictions. The aim of the model is to produce more-accurate downhole pressure predictions under wide flowing conditions while maintaining a simple form. As a component of the integrated model, an improved two-fluid model for segregated flow is proposed. Results of the two-fluid segregated model are compared with five state-of-the-art existing models, while results of the integrated model are compared with three models.

Introduction

Throughout the life of the well, knowing bottomhole flowing pressure (P_wf) and the pressure profile of the wellbore are of great significance.