Transient solid-liquid two-phase flow modelling and its application in real-time drilling simulations

摘要

This paper discusses a transient solid-liquid two-phase flow modelling approach that was applied for real-time drilling hydraulic and cuttings transport calculation. The flow patterns are categorized into seven scenarios, and the flow pattern transition criteria are presented. A generalized transient solid transport model is developed to simulate the transient solid-liquid two-phase flow by combining the transient mechanistic models and the flow pattern prediction method.