Research output: Contribution to journal › Article › peer-review
Relation of NMR parameters with specific surface and resistivity of shaly sandstone and siltstone samples : experimental study. / Shumskayte, M. Y.; Glinskikh, V. N.
In: Russian Geology and Geophysics, Vol. 57, No. 10, 01.10.2016, p. 1509-1514.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Relation of NMR parameters with specific surface and resistivity of shaly sandstone and siltstone samples
T2 - experimental study
AU - Shumskayte, M. Y.
AU - Glinskikh, V. N.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - Using an MST-05 NMR relaxometer, we determined the dependence of NMR parameters on the specific surface and resistivity of water-saturated shaly sandstone and siltstone core samples. The influence of the type and quantity of clay minerals was evaluated at residual water saturation, because the main contribution to the measured NMR signal in this case is made by clay content. Based on NMR relaxometry data, we obtained quantitative estimates of the specific surface with clay- and capillary-bound fluids. The surface relaxivity was estimated from thermal-desorption and NMR relaxometry data. The high degree of reliability of its values was confirmed by the agreement between the pore size distributions determined by NMR relaxometry and by capillarimetry and granulometry. We have established that the parameters of NMR spectra depend on the specific surface and resistivity, which are, in turn, a function of the surface properties of both clay and sandstone/siltstone particles.
AB - Using an MST-05 NMR relaxometer, we determined the dependence of NMR parameters on the specific surface and resistivity of water-saturated shaly sandstone and siltstone core samples. The influence of the type and quantity of clay minerals was evaluated at residual water saturation, because the main contribution to the measured NMR signal in this case is made by clay content. Based on NMR relaxometry data, we obtained quantitative estimates of the specific surface with clay- and capillary-bound fluids. The surface relaxivity was estimated from thermal-desorption and NMR relaxometry data. The high degree of reliability of its values was confirmed by the agreement between the pore size distributions determined by NMR relaxometry and by capillarimetry and granulometry. We have established that the parameters of NMR spectra depend on the specific surface and resistivity, which are, in turn, a function of the surface properties of both clay and sandstone/siltstone particles.
KW - clay minerals
KW - nuclear magnetic resonance
KW - relaxometry
KW - resistivity
KW - specific surface
KW - surface relaxivity
UR - http://www.scopus.com/inward/record.url?scp=84992390860&partnerID=8YFLogxK
U2 - 10.1016/j.rgg.2016.01.019
DO - 10.1016/j.rgg.2016.01.019
M3 - Article
AN - SCOPUS:84992390860
VL - 57
SP - 1509
EP - 1514
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 10
ER -
ID: 25477300