Adaptive output feedback control of a managed pressure drilling system

Author

Zhou, Jing ; Stamnes, Øyvind Nistad ; Aamo, Ole Morten ; Kaasa, Glenn-Ole

Author_Institution

Dept. of Eng. Cybern., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

fYear

2008

fDate

9-11 Dec. 2008

Firstpage

3008

Lastpage

3013

Abstract

This paper presents a nonlinear observer-based control scheme to stabilize the annular pressure profile throughout the well bore continuously while drilling. A simple mechanistic model is presented that captures the dominant phenomena of the drilling system and forms the basis for model-based observer and control design. A new nonlinear adaptive observer is developed for state estimations. A new adaptive controller is designed to stabilize the annular pressure and achieve asymptotic tracking by applying feedback control of the choke valve opening and the main pumps.

Keywords

adaptive control; asymptotic stability; control system synthesis; drilling; feedback; nonlinear control systems; observers; stability; adaptive output feedback control; annular pressure stability; choke valve opening; control design; managed pressure drilling system; model-based observer; nonlinear adaptive observer; nonlinear observer-based control scheme; pump; state estimations; Adaptive control; Boring; Control design; Control systems; Drilling; Observers; Output feedback; Pressure control; Programmable control; State estimation; Drilling; adaptive control; nonlinear observer; stabilization; tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2008. CDC 2008. 47th IEEE Conference on

Conference_Location

Cancun

ISSN

0191-2216

Print_ISBN

978-1-4244-3123-6

Electronic_ISBN

0191-2216

Type

conf

DOI

10.1109/CDC.2008.4738844

Filename

4738844