Rotary steerable systems: mathematical modeling and their case study

Abstract Directional drilling is a common and essential procedure of major extended reach operations. With the development directional technologies, percentage recoverable oil production has increased. However, its challenges, like real-time bit steering, tools selection control, are main barriers leading to low efficiency high nonproductive time. The fact inspires this study. Our work aims contribute better understanding drilling, more specifically regarding rotary steerable system (RSS) technology. For instance, finding solutions technological challenges involved in RSSs, such as steering position calculation speed estimation, considerations our Classical definitions from fundamental physics including Newton’s third law, beam bending analysis, force rate penetration (ROP) modeling employed estimate then conduct RSS control steer accordingly. results illustrated case study with consideration 2D 3D wellbore scenarios.