Integrated Approach to Drilling Fluid Optimisation for Efficient Shale Instability Management

摘要

An integrated approach to drilling fluid design and optimisation, in terms of mud weight and chemistry, for efficient shale instability management has been developed in a collaborative prject. The key drilling fluid-shale interaction mechanisms included in the state-of-the-art design criteria are mud pressure penetration, chemical potential and swellinghydrational stress.