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

Journal Name:

  • Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi

Publication Year:

  • 2007

Key Words:

Keywords (Original Language):

Author NameUniversity of Author
Abstract (2. Language): 
Fluids can be determined on samples directly using NMR technique [1,2,3]. The amplitude of the NMR signal is related to the number of hydrogen protons, the technique can be used in geophysics to measure the water content of rocks and soils [4,5]. In this study, to identify relaxation times according to porosity values we used synthetic samples. For the NMR measurements, we used monomodal glass pearl samples (0,1-0,5-0,8-1 mm) and sand samples (0,35-0,75-1,5 mm) with additional water or petroleum. According to the relaxation times we measured porosity and compare them with ordinary lab measurement results. For the results T1(INVREC) and T2(CPMG) relaxation times are much better suited than T2*(FID) for the analysis. All measurements were carried out in the department of Geoscience, Technical University of Berlin in Germany.
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Abstract (Original Language): 
Akışkanlar NMR tekniği kullanılarak tespit edilebilir [1,2,3] NMR sinyalinin genliği hidrojen atom sayısıyla alakalıdır ve teknik jeofizikte kayaç ve zeminlerin su muhtevasını ölçmede kullanılabilir [4,5]. Bu çalışmada sentetik numuneler (su ve petrol eklemeli) olarak laboratuar kaya fiziği porozite ve akışkan tayini çalışması için kullanılmıştır (monomodal glasspearl numuneleri; 0,1-0,5-0,8-1 mm çaplı ve kumlu numuneler; 0,35-0,75-1,5 mm çaplı). Relaksasyon (gevşeme) zamanına bağlı olarak numunelerin porozite ölçümleri hesaplanmıştır, buna göre T1 ve T2 gevşeme zamanları T2* gevşeme zamanına göre daha uyumlu sonuçlar vermiştir. Bu çalışmaya ait ölçümler Berlin Teknik Üniversitesi, Yerbilimleri bölümünde gerçekleşmiştir.
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REFERENCES

References: 

[1] Shirov, M., Legchenko A., Creer G., “A new direct non invasive groundwater detection technology for Australia” Exploration geophysics 22, 333-338, 1991
[2] 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, 2002[3] Müller, M., Kooman, S. and Yaramanci, U., Nuclear Magnetic Resonance (NMR) properties of unconsolidated sediments in field and laboratory. Near Surface Geophysics, Vol. 3, No. 4, 275-285, 2005
[4] Yaramanci, U., New Technologies in ground water exploration - Surface Nuclear Magnetic Resonance. Geologica Acta, Vol. 2, No.2, 109–120, 2004
[5] Sünbül F., Karavul, C., “An investigation of properties of soil samples using NMR Technique, The 16th International Geophysical Congress and Exhibition of Turkey, December 7-10, Ankara, 2004
[6] Yaramanci, U., Lange, G., Hertrich, M., “Aquifer characterisation using Surface NMR jointly with other geophysical techniques at the Nauen/Berlin test site”, Journal of Applied Geophysics 50, p:47-65, 2002
[7] Kenyon, W., E., “Nuclear Magnetic Resonance as a petrophysical measurement tool, Nuclear Geophysics, Vol 6, 2, 153-171, 1992
[8] Dunn K., J., Bergman D., J., Latorraca, G., A., “Nuclear Magnetic Resonance Petrophysical and Logging Applications Book, Handbook of geophysical exploration seismic exploration, Volume:32, Pergamon Press, 2002
[9] Al-Mahrooqi, S., H., Grattoni, C., A., Moss, A., K., Jing, X., D., “An investigation of the wettability on NMR characteristics of sandstone rock and fluid systems”, Journal of Petroleum science and engineering 39, 389-398, 2003
[10] Straley, C., Rossini, D., Vinegar, H., Tatunjian, P. and Morriss, C., “Core Analysis by Liw-Field NMR” The log Analyst, Vol38.2, P:84-94
[11] Aytekin, M., “Deneysel Zemin Mekaniği”, Teknik Yayınevi, 2004

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