کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
689039 | 889587 | 2013 | 10 صفحه PDF | دانلود رایگان |
A model-based in-/out-flux detection scheme for managed pressure drilling is presented. We apply a globally exponentially stable adaptive observer which estimates the unknown states and parameters of the hydraulic system and in particular quantifies the magnitude of the in-/out-flux and its location in the well. While the observer can be used purely as an in-/out-flux detection system, the paper also presents a simple controller that automatically and effectively stops an in-/out-flux. This novel control scheme departs from common practice for automatic managed pressure drilling, which is to regulate down-hole pressure to some predetermined set point. Experimental results and realistic simulations with a state-of-the-art simulator are provided to show the effectiveness of the method.
► We use an adaptive observer to quantify and locate an in-/out-flux during drilling.
► We design a control law to mitigate the influx.
► The adaptive observer is tested with experimental data.
► The proposed controller is tested with a state-of-the-art simulator.
Journal: Journal of Process Control - Volume 23, Issue 4, April 2013, Pages 463–472