SPE Online Education
Automated Trajectory Drilling for Rotary Steerable Systems
Recorded On: 06/18/2020
Directional drilling today is still a manual process characterized by monitoring drilling parameters and trends, predicting the future wellbore trajectory and adjusting steering parameters as required. When drilling with a rotary steerable system (RSS) in the bottom-hole assembly (BHA), the trajectory control system is distributed between surface and downhole. The surface control makes use of downhole measurements and capabilities of the rotary steerable BHA, and in turn is used to control the downhole components, forming a ‘directional drilling control loop’ and allowing the efficient drilling of a quality wellbore. Traditionally, the directional driller assumes the surface control, whereas downhole control is performed by the RSS-BHA allowing drilling certain parts of a section automatically.
This webinar explains how deviated wellbores are drilled automatically with a rotary steerable system. The automation system used is capable of predicting the wellbore trajectory, deriving steering proposals to follow the planned trajectory closely or steer back to plan, and submitting those steering downlinks automatically to the downhole RSS with the directional driller observing the system. During the webinar, we explain the underlying control methodology and the automation system architecture. Furthermore, operational considerations as well as sensor and actuator influencing factors are discussed. The concept of embedding the driller and directional driller in the decision-making workflow is outlined. Finally, the performance of the automated trajectory drilling system is assessed and case studies are presented, where up to 98 % of a single wellbore has been drilled automatically.
All content contained within this webinar is copyrighted by Dr. Christian Hansen and its use and/or reproduction outside the portal requires express permission from Dr. Christian Hansen.
Dr. Christian Hansen
Technical Lead for Automation Services, Baker Hughes
Dr. Christian Hansen is Technical Lead for Automation Services at Baker Hughes with focus on automated trajectory drilling
During the last 23 years of his professional career, he has held positions in algorithmic development, software development, software testing, and research. Before joining Baker Hughes in 2010, he worked for 7 years as a development engineer in radio broadcasting. Prior to this Christian served as a research assistant at the University of Hannover, Germany. Since 2016, Christian is working towards the automation of the drilling process emphasizing the automation of directional drilling.
Dr. Christian Hansen holds a PhD degree in Electrical Engineering from University of Hannover, Germany, which he earned in 2004.
Christian’s areas of expertise are drilling automation, digital signal processing, digital communications including mud-pulse telemetry and wired pipe, model-based-design, and digital control.
He published more than 20 journal and conference papers and holds 7 granted patents. He has co-authored the SPE paper “Automated Trajectory Drilling for Rotary Steerable Systems” (199647-MS SPE Conference Paper – 2020).
SPE Webinars are FREE to members courtesy of the