Drilling Automation: An Automatic Trajectory-Control System

摘要

Rotary steerable systems (RSSs) enable faster drilling, smoother well-bores, and extended-reach drilling. Still, a drilling assembly built around an RSS tool is sensitive to factors such as bit type, operating parameters, type of drilling fluid, lithology, and borehole diameter. Therefore, it is not always optimal for a human operator [typically a directional driller (DD)] to select and issue the correct commands to the drilling tool at the correct time. This situation becomes even more challenging when those decisions must be made in a matter of minutes.