NUCLEAR MAGNETIC RESONANCE (NMR) PROPERTIES OF SYNTHETIC AND SANDY SAMPLES

Fluids can be cletennined on samples directly using NMR technique [1 ,2,3]. The aınplitude of the NMR signal isrelated to the nun1ber of hydrogen protons, the technique can be use d in geophysics to ıneasure the water conteniof rocks and so i ls [ 4,5]. In this study, to identify relaxation tiınes according to porosity values w e used syntheticsamples. For the NMR ıneasuren1ents, we used monoınodal glass pearl samples (0, 1-0,5-0,8-1 ının) and san dsaınples (0,35-0,75-1,5 mm) with additional water or petroleun1. According to the relaxation times we measuredporosity and compare them with ordinary Iab measurement results. For the results T 1 (JNVREC) and T2(CPMG)relaxation tin1es are ınuch better suited than T2*(FID) for the analysis. All n1easuren1ents were carried out in thedepartn1ent of Geoscience, Technical University of Berlin in Gennany.

Anahtar Kelimeler:

NMR, FID, CPMG, porosity

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Shirov, M., Legchenko A., Creer G., "A new direct non invasive groundwater detection technology for Australia" Exploration geophysics 22, 333-338, 1991
Legchenko, A., Baltassat, J. M., Beauce, A., Bernard, J., Nuclear Magnetic Resonance as a geophysical tool for hydrogeologists: Journal of Applied Geophysics, Volume 50, Issues 1-2, May, Pages 21 -46, SAU. Fen Bilin1leri Dergisi, 11. Cilt, 1. Sayı, s.33-37, 2007
Kenyon, W., E., "Nuclear Magnetic Resonance as a petrophysical measurenıent tool, N uclear Geophysics, Vol 6, 2, 153-171, 1992
Dunn I(., J., Bergman D., J., Latorraca, G., A., "N uclear Magnetic Resonance Petrophysical and Logging Applications Book, Handbook of geophysica1 exploration seisn1ic exploration, Yolume:32, Pergaınon Press, 2002
AJ-Mahrooqi, S., H., Ci-rattoni, C., A., Moss, A., I<., Jing, X., D., "An investigation of the wettability on NMR characteristics of sandstone rock and fluid systems", Journal of Petrolenın science and engineering 39, 389-398, 2003
Straley, C., Rossini, D., Vinegar, H., Tatunjian, P. and Morriss, C., "Core Analysis by Liw-Field NMR" The log Analyst, Vo138.2, P:84- 1] Aytekin, M., "Deneysel Zemin v1ekaniği", Teknik Yayınevi, 2004 F. Sünbül