IFEG 20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
artículos
Título:
Nuclear Magnetic Resonance Relaxation Studies in Shale
Autor/es:
RAMIA M.E.; MARTÍN C.A.
Revista:
APPLIED MAGNETIC RESONANCE
Editorial:
SPRINGER WIEN
Referencias:
Lugar: Viena; Año: 2016 vol. 47 p. 1 - 15
ISSN:
0937-9347
Resumen:
The present work involves a comprehensive experimental study of proton(1H) Nuclear MagneticResonance (NMR) transversalrelaxation in shale. The sample studied belongs to the ?Vaca Muerta? formationof the Neuquén basin, Argentina. The results show that the relaxation processis governed by anomalous diffusion processes in micro-pores. These processesresult from the combination of interactions between the liquid molecules andthe pore walls, whose structure is characterized by both large tortuosity andabundance of paramagnetic impurities, giving rise to local strong timedependent magnetic field gradients. Additionally, a simultaneous experimental methodof data fitting is presented which allows processing all the relaxationprofiles within a single time domain. Thus, yielding results univocally relatedto the complete set of relaxation data.
