Bottomhole pressure stabilizing observer-based controller in tunnel drilling system


Managed Pressure Drilling (MPD) in oil-gas industry remains a challenge problem. As the annulus is completely clogged, upstream choke pressure measurement can be used to control the well downhole pressure. To reinforce the tunnel face, MPD becomes difficult as the annulus is totally open. In this paper, we propose a finite dimensional model to all fluid… (More)

9 Figures and Tables


  • Presentations referencing similar topics