Title :
Adaptive approximation-based estimation of downhole pressure in managed pressure drilling
Author :
Imsland, Lars ; Kaasa, G.
Author_Institution :
Dept. of Eng. Cybern., Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Abstract :
Low-complexity multi-model algorithms for adaptive bottomhole pressure estimation in drilling is derived, and theoretical and practical conditions for convergence (persistency of excitation) discussed, assuming a) topside measurements only, b) topside measurements and bottomhole pressure measurement, and c) topside measurements and delayed bottomhole pressure measurement.
Keywords :
adaptive control; adaptive estimation; convergence; drilling (geotechnical); pressure control; pressure measurement; adaptive approximation-based estimation; adaptive bottomhole pressure estimation; convergence; delayed bottomhole pressure measurement; downhole pressure; low-complexity multimodel algorithms; managed pressure drilling; topside measurements; Adaptation models; Friction; Function approximation; Geologic measurements; Pressure measurement; Q measurement;
Conference_Titel :
Control Applications (CCA), 2012 IEEE International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
978-1-4673-4503-3
Electronic_ISBN :
1085-1992
DOI :
10.1109/CCA.2012.6402472
