Dispersion measurements using time-of-flight remote detection MRI.
Remote detection nuclear magnetic resonance and magnetic resonance imaging can be used to study fluid flow and dispersion in a porous medium from a purely Eulerian point of view (i.e., in a laboratory frame of reference). Information about fluid displacement is obtained on a macroscopic scale in a long-time regime, while local velocity distributions are averaged out. It is shown how these experiments can be described using the common flow propagator formalism and how experimental data can be analyzed to obtain effective porosity, flow velocity inside the porous medium, fluid dispersion and flow tracing of fluid.
Granwehr
Josef
J
Materials Sciences Division, Lawrence Berkeley National Laboratory and University of California at Berkeley, Berkeley, CA 94720, USA. josef.granwehr@nottingham.ac.uk
Harel
Elad
E
Hilty
Christian
C
Garcia
Sandra
S
Chavez
Lana
L
Pines
Alex
A
Sen
Pabitra N
PN
Song
Yi-Qiao
YQ
D021621:Imaging, Three-Dimensional / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008962:Models, Theoretical; D016062:Porosity; D012212:Rheology / Q000379:methods; D013995:Time