Impact of Fluid Flow on Hook Load and Torque: Advancing Predictive Models for Drilling Operations

The effects of fluid flow on hook load and torque measurements are pivotal in optimizing drilling operations and ensuring wellbore stability. This study investigates the direct relationship between fluid circulation and surface measurements, focusing on the dynamic forces induced by hydraulic interactions. Drilling fluid, as a critical component, influences torque and axial load through mechanisms such as buoyancy, friction, and hydraulic lift. While traditional Archimedes-based models offer simplified estimations, this work integrates advanced formulations that account for fluid circulation effects, improving the prediction accuracy for hook load and torque under various operational scenarios. Using both analytical and computational approaches, the study evaluates hydraulic forces, incorporating parameters such as fluid density, velocity, and pressure gradients. The simulation results are validated against field data, highlighting the impact of fluid flow rates on torque and drag. Observations indicate that higher flow rates decrease the hook load, altering the effective weight on bit (WOB) and consequently affecting penetration rates (ROP). These findings provide practical insights into addressing the challenges of fluid dynamics in drilling operations. By enhancing the accuracy of surface measurement predictions, this work not only improves operational efficiency but also supports the development of safer, more reliable drilling practices.