Title :
On the dynamics of oilwell drillstrings with asynchronous motor drive
Author :
Bobasu, Eugen ; Danciu, Daniela ; Popescu, Dan ; Rasvan, Vladimir
Author_Institution :
Dept. of Autom. Control, Univ. of Craiova, Craiova, Romania
Abstract :
Recent work in stick-slip vibration quenching for drill pipes has been focused on models with distributed parameters where the drill pipe is assimilated to a rod. On the other hand it has been pointed out that the driving motor dynamics control may be helpful in reducing the breakdown/failures of the drilling devices. The present paper incorporates the dynamics of the induction driving motor. The influence of the control approach is discussed.
Keywords :
failure analysis; induction motors; motor drives; oil drilling; rods (structures); vibrations; asynchronous motor drive; breakdown reduction; distributed parameters; drill pipes; driving motor dynamics control; failure reduction; induction driving motor; oilwell drillstring dynamics; rod; stick-slip vibration quenching; Induction motors; Vibrations; Liapunov functional; drilling assembly dynamics; induction motor; stability;
Conference_Titel :
Carpathian Control Conference (ICCC), 2015 16th International
Conference_Location :
Szilvasvarad
Print_ISBN :
978-1-4799-7369-9
DOI :
10.1109/CarpathianCC.2015.7145042
