RHEOLOGICAL MODELLING AND VALIDATION OF GRAPHENE OXIDE-ENHANCED WATER-BASED DRILLING FLUIDS FOR SURGE AND SWAB PRESSURE MITIGATION: A COMPARISON OF POWER LAW AND YIELD POWER LAW MODELS. AUNIC [Internet]. 2025 Nov. 14 [cited 2025 Nov. 28];3(1). Available from: https://journals.aun.edu.ng/index.php/files/article/view/203