Experimental study of the D-OSKIL mechanism for controlling the stick-slip oscillations in a drilling laboratory testbed

Haochuan Lu (1) , Jonathan Dumon (2) , Carlos Canudas de Wit (3)

1 EEE - School of Electrical and Electronic Engineering
2 GIPSA-Services - GIPSA-Services
3 NECS - Networked Controlled Systems

The presence of harmful stick-slip oscillations in oil well drillstrings has attracted the attention of the control community in recent years. The control law named D-OSKIL mechanism which uses the weight on the bit (WoB) force as an additional control variable to extinguish limit cycles has been investigated. This paper reports experimental implementation of such a mechanism, in a laboratory testbed. We also provide details of the experimental process and the obtained drilling performance. Results show that the stick-slip oscillations can be effectively suppressed by this mechanism.

Mots clés: Stick-Slip elimination; Oil Well Drillstring; D-OSKIL control

Domaines: Automatique / Robotique

Haochuan Lu, Jonathan Dumon, Carlos Canudas de Wit. Experimental study of the D-OSKIL mechanism for controlling the stick-slip oscillations in a drilling laboratory testbed. MSC 2009 - CCA 2009 - 3rd IEEE Multi-conference on Systems and Control - 18th IEEE International Conference on Control Applications, Jul 2009, Saint Petersburg, Russia. ⟨hal-00385549⟩