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A comprehensive analysis of HPHT drilling fluids: advances in formulation, rheology, AI/ML utilisation, and industry challenges
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DOI：10.1016/j.petlm.2026.05.006.png)
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Abstract
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• Multidisciplinary Challenge: HPHT drilling fluid design extends beyond additive selection, involving chemistry, rheology, thermal dynamics, and data science. • Limitations of Conventional Systems: Traditional fluids face instability, barite sag, additive degradation, and poor rheology under HPHT conditions. • Emerging Additives: Nanomaterials (graphene oxide, organoclays, nano-silica) and smart polymers enhance suspension stability, heat resistance, and adaptive viscosity. • AI & Machine Learning Integration: Predictive models and real-time optimization are transforming mud system design from reactive to predictive approaches.
Keywords:
High-pressure and high-temperature
Drilling fluids
Polymer additives
Predictive models
Equivalent circulating density
Rheological models
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