Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Njål Kjærnes Tengesdal"'
Publikováno v:
Modeling, Identification and Control, Vol 41, Iss 3, Pp 165-184 (2020)
Modeling, Identification and Control
Modeling, Identification and Control
In this paper, an unscented Kalman filter (UKF) coupled with a nonlinear model-predictive controller (NMPC) for a hydraulic wellbore model with multi-variable control and tracking is presented. In a wellbore, high drill string velocities in operation
Publikováno v:
IFAC-Papers
Subsea gas compressors are key components for both increased and accelerated hydrocarbon production. Compressors enable the development of fields that are remote, in deep waters, or have low and/or reduced reservoir pressure. In this paper, we presen
Publikováno v:
Journal of Petroleum Science and Engineering. 202:108070
A common strategy for analyzing the stability of coupled axial and torsional dynamics in drilling is by using a two-degree-of-freedom mass-spring-damper model derived as a second-order ordinary differential equation. This implies using a single point