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