Rejection of Heave-Induced Pressure Fluctuations at the Casing Shoe in Managed Pressure Drilling

نویسندگان

  • Henrik Anfinsen
  • Ole Morten Aamo
چکیده

In this paper, we apply recent results on disturbance rejection in the interior domain of a class of 2 × 2 linear hyperbolic systems of partial differential equations to the problem of rejecting heave-induced pressure fluctuations at the casing shoe in managed pressure drilling. We show that a PDE model of the drilling dynamics belongs to this class of systems, and derive both state feedback and output feedback control laws for the drilling system. The performance of the control laws are demonstrated in simulations that show efficient rejection of pressure oscillations at a desired location in the well.

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تاریخ انتشار 2014