A novel steering sections of hybrid rotary steerable system for directional drilling

• Published in: 2014 14th International Conference on Control, Automation and Systems (ICCAS 2014) pp. 1617 - 1619
• Main Authors: Jongheon Kim, Byeolteo Park, Jae-Uk Shin, Sungwook Jung, Hyun Myung
• Format: Conference Proceeding
• Language: English
• Published: Institute of Control, Robotics and Systems (ICROS) 01-10-2014
• Subjects: Actuators; directional drilling; Force; hybrid type RSS; Lead; point-the bit; push-the bit; Rotary Steerable System (RSS); Service robots; Torque
• ISSN: 2093-7121
• DOI: 10.1109/ICCAS.2014.6987832

As the conventional resource drains, the importance of unconventional resource grows. A directional drilling system and a hydraulic fracturing method are required to gain unconventional resources. Nowadays, the key technology of the directional drilling is a rotary steerable system (RSS). Among several types of the RSS developed so far, `point-the-bit' and `push-the-bit' are the most commonly used ones. In this paper, we introduce several conventional directional drilling methods and propose a new hybrid-type rotary steerable system. This mechanism improves the steering angle by taking advantages of both `point-the-bit' and `push-the-bit' types. Its control should be synchronized all 360° for BHA(Bottom Hall Assembly) heading due to the hybrid mechanism.