The Observation of Residual Oil Evolution During Waterflooding Using NMR D - T 2 Maps

Verfasser / Beitragende:
[Yukai Qi, Naigui Liu, Weimin Wang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Magnetic Resonance, 46/10(2015-10-01), 1089-1098
Format:
Artikel (online)
ID: 605545839
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024 7 0 |a 10.1007/s00723-015-0711-2  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00723-015-0711-2 
245 0 4 |a The Observation of Residual Oil Evolution During Waterflooding Using NMR D - T 2 Maps  |h [Elektronische Daten]  |c [Yukai Qi, Naigui Liu, Weimin Wang] 
520 3 |a By supplementing standard relaxation time measurements with diffusion information, nuclear magnetic resonance (NMR) D-T 2 mapping provides a powerful tool for characterizing fluids in a core. In this study, a D-T 2 mapping technique was designed and applied to investigate waterflooding behavior and pore-level residual oil distributions. NMR measurements were conducted at different stages of the waterflooding process, and corresponding D-T 2 maps were acquired. The oil and water signals were easily separated using a diffusion coefficient cut-off of 3×10−6 cm2/s. The oil saturation values measured via the NMR method were highly consistent with the volumetric method results. The pore-level residual oil distributions could be calculated by analyzing the oil T 2 spectra during waterflooding. The injected water was found to preferentially displace oil in large and medium-sized pores having relatively low capillary pressures. The final residual oil saturation measured via the NMR method was 18.9%, with 15.7% occurring in medium-sized pores (10ms
540 |a Springer-Verlag Wien, 2015 
700 1 |a Qi  |D Yukai  |u Institute of Geology and Geophysics, Chinese Academy of Sciences, No.19, Beituchengxi Road, Chaoyang District, 100029, Beijing, China  |4 aut 
700 1 |a Liu  |D Naigui  |u Institute of Quantum Electronics, School of Electronic Engineering and Computer Science, Peking University, 100871, Beijing, China  |4 aut 
700 1 |a Wang  |D Weimin  |u Institute of Quantum Electronics, School of Electronic Engineering and Computer Science, Peking University, 100871, Beijing, China  |4 aut 
773 0 |t Applied Magnetic Resonance  |d Springer Vienna  |g 46/10(2015-10-01), 1089-1098  |x 0937-9347  |q 46:10<1089  |1 2015  |2 46  |o 723 
856 4 0 |u https://doi.org/10.1007/s00723-015-0711-2  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00723-015-0711-2  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Qi  |D Yukai  |u Institute of Geology and Geophysics, Chinese Academy of Sciences, No.19, Beituchengxi Road, Chaoyang District, 100029, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liu  |D Naigui  |u Institute of Quantum Electronics, School of Electronic Engineering and Computer Science, Peking University, 100871, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Weimin  |u Institute of Quantum Electronics, School of Electronic Engineering and Computer Science, Peking University, 100871, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Magnetic Resonance  |d Springer Vienna  |g 46/10(2015-10-01), 1089-1098  |x 0937-9347  |q 46:10<1089  |1 2015  |2 46  |o 723