- AutorIn
- Geir Humborstad Sørland
- Ketil Djurhuus
- Hege C. Widerøe
- Jan R. Lien
- Arne Skauge
- Titel
- Absolute pore size distributions from NMR
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa-194295
- Quellenangabe
- Diffusion fundamentals - 5
- Quellenangabe
- Diffusion fundamentals 5 (2007) 4, S. 1-15
- Erstveröffentlichung
- 2007
- Abstract (EN)
- NMR measurements on core samples saturated with brine returns valuable information on the porous structure of the rock core. Monitoring a single fluid component in a relaxation experiment reflects the pore size distribution and thus the degree of sorting of the porous rock. The basic assumptions are that the mobility of the component confined in the porous rock is of such a value that a small fraction of the probing molecules experience the surfaces of the pores and that the surface relaxation strength is fairly independent of pore size. Then one may combine diffusion measurements at short observation times returning a value for the average surface to volume ratio with ordinary relaxation time measurements to obtain an absolute pore size distribution instead of the standard T2 distributions or T1-T2 correlated two dimensional distributions.
- Freie Schlagwörter (DE)
- Diffusion, Transport
- Freie Schlagwörter (EN)
- diffusion, transport
- Klassifikation (DDC)
- 530
- Herausgeber (Institution)
- University of Bergen
- Anvendt Teknologi
- Statoil Research Centre
- Universität Leipzig
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa-194295
- Veröffentlichungsdatum Qucosa
- 14.01.2016
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch