IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Robust Multi-Phase Flow Measurements Using Magnetic Resonance
Autor/es:
D.J. PUSIOL, L. CERIONI
Reunión:
Conferencia; 18th ISMAR 2013/14th NMR Users Meeting; 2013
Institución organizadora:
ISMAR
Resumen:
OP152: Robust Multi-Phase Flow Measurements Using Magnetic Resonance 1;2_Daniel José Pusiol, 1Lucas C. Cerioni 1Instituto de Física Enrique Gaviola IFEG, CONICET, Ciudad Universitaria, Córdoba, Argentina, 2SPINLOCK SRL & CONICET, Córdoba, Argentina The flow metering of multiphase fluids is an actual technical challenge, especially when flow velocity is in the range of 0.1 ? 10 m/sec. The primary complication is the existence of ?phase slip? between fluid components. Without physically separating individual fluid components of multi-phase flow, it is impossible to accurately determine the flow rate of each component from the measurement of physical properties that are related to the average fluid displacement in the pipe. A non-linear system of fluid phase velocity and cross-sectional area occupied by each fluid phase is established during multiphase flow, which cannot be adequately approximated by correlations derived from macroscopic properties such as fluid density or pressure drop. Magnetic resonance is intrinsically sensitive to flow; however, current applications to flow measurement are limited to very low flow rates that are inapplicable to oil-field and other industrial applications. In this paper we discuss realtime quantification NMR-based methods of high-flow rates in multiphase fluids. In particular, we focalize in a recent development which employs a new principle that enables robust 3-phase flow metering with a broader operating envelope than existing flow meters, has no sensors in the flow stream, no radioactive source, yet could potentially be produced at sufficiently low cost to promote increasing numbers of well head installations. ACKNOWLEDGMENTS: CONICET, FONTAR, SPINLOCK