TY - GEN
T1 - An intelligent pumping system to cope with gas volume fraction of the oil-well multi-phase flow
AU - Hashemi, Ali
AU - Omrani, Ala E.
AU - Franchek, Matthew A.
AU - Grigoriadis, Karolos
AU - Ebrahimi, Behrouz
N1 - Publisher Copyright:
© 2014 by ASME.
PY - 2014
Y1 - 2014
N2 - A novel approach is presented to model the interplay between the gas volume fraction (GVF) and the driving force of the pumping unit. A physics-based model is proposed to predict the down-hole pressure for a constant, but unknown GVF and given oil flow-rate out of the well. The identified down-hole pressure is used to model the saddle-bearings axial displacements, which are indicative of polished-rod loading. The imbalance between the data obtained from the detailed model of the pumping unit, and predicted bearing's displacements can be employed then to estimate the value of the GVF. The resulted GVF is incorporated into the suckerrod string dynamics to determine the natural frequency of the system. A control strategy is then used to adjust the pump speed to compensate for the GVF variations while avoiding the resonance frequency of the sucker-rod string. A low dimensional simulation is performed and the results are demonstrated for upstroke movement of the sucker-rod.
AB - A novel approach is presented to model the interplay between the gas volume fraction (GVF) and the driving force of the pumping unit. A physics-based model is proposed to predict the down-hole pressure for a constant, but unknown GVF and given oil flow-rate out of the well. The identified down-hole pressure is used to model the saddle-bearings axial displacements, which are indicative of polished-rod loading. The imbalance between the data obtained from the detailed model of the pumping unit, and predicted bearing's displacements can be employed then to estimate the value of the GVF. The resulted GVF is incorporated into the suckerrod string dynamics to determine the natural frequency of the system. A control strategy is then used to adjust the pump speed to compensate for the GVF variations while avoiding the resonance frequency of the sucker-rod string. A low dimensional simulation is performed and the results are demonstrated for upstroke movement of the sucker-rod.
UR - https://www.scopus.com/pages/publications/84929250831
UR - https://www.scopus.com/inward/citedby.url?scp=84929250831&partnerID=8YFLogxK
U2 - 10.1115/DSCC2014-6171
DO - 10.1115/DSCC2014-6171
M3 - Conference contribution
AN - SCOPUS:84929250831
T3 - ASME 2014 Dynamic Systems and Control Conference, DSCC 2014
BT - Industrial Applications; Modeling for Oil and Gas, Control and Validation, Estimation, and Control of Automotive Systems; Multi-Agent and Networked Systems; Control System Design; Physical Human-Robot Interaction; Rehabilitation Robotics; Sensing and Actuation for Control; Biomedical Systems; Time Delay Systems and Stability; Unmanned Ground and Surface Robotics; Vehicle Motion Controls; Vibration Analysis and Isolation; Vibration and Control for Energy Harvesting; Wind Energy
PB - American Society of Mechanical Engineers
T2 - ASME 2014 Dynamic Systems and Control Conference, DSCC 2014
Y2 - 22 October 2014 through 24 October 2014
ER -