TORQUE AND DRAG MODELLING AND ANALYSIS IN A HIGH INCLINATION DIRECTIONAL GEOTHERMAL WELL

Abstract

Drilling for geothermal energy frequently involves targeting complex and hard-to-reach formations, making directional drilling techniques essential. As the deviation angle from vertical increases, torque and drag challenges intensify, impacting wellbore stability and the overall drilling process. Accurate modeling of torque and drag is crucial to prevent issues like pipe buckling and to optimize the well trajectory. This study uses data from the SA-1 well, a directional well in the RGS Field. The insights obtained will inform the drilling of the more inclined SA-2 well. By analyzing torque and drag, the research aims to optimize the drill string design and foresee potential problems during drilling. The results will ensure the planned well path remains within equipment limits while minimizing friction and related forces. Simulation results show that the proposed design avoids potential drilling issues such as torque failure, buckling, or stress failure by adhering to operational drilling parameters. This comprehensive approach includes both pre-drilling and post-drilling analyses, improving the overall efficiency and success of geothermal drilling projects.