Relaxation of protons in pores in a sandstone

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dc.contributor.author McCutcheon, A. L. en_US
dc.contributor.author Wilson, M. A. en_US
dc.contributor.author Hartung-Kagi, B. en_US
dc.contributor.author Ooi, K. en_US
dc.date.accessioned 2009-06-26T04:10:53Z
dc.date.available 2009-06-26T04:10:53Z
dc.date.issued 2002 en_US
dc.identifier 2004003020 en_US
dc.identifier.citation McCutcheon, A. et al. 2002 'Relaxation of protons in pores in a sandstone', Journal of Physical Chemistry B, vol. 106, no. 11, pp. 2928-2932. en_US
dc.identifier.issn 1520-6106 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/599
dc.description.abstract Proton nuclear magnetic spin-spin relaxation time distributions (Tz distributions) for a water-saturated cylinder of sandstone (radius 6.5 cm and length 17.55 em) have been studied as a function of drying time. By freezing the sample to -13.7 °C, a proportionality constant of 38.8 f1s1nm was determined that can be used to relate pore size to Ti- The results show external water cannot enter some intermediate sized pores of 400 nm diameter; however, these pores are available to water that has been frozen and allowed to thaw. On drying from saturation, water loss commences immediately from pores of the order of 1000 nrn and greater and there is a lag period of 51 h before the smaller pores begin to drain. On freezing and then thawing, intermediate sized pores are filled because the large pores are blocked by ice. en_US
dc.publisher American Chemical Society en_US
dc.relation.isbasedon http//dx.doi.org/10.1021/jp011884r en_US
dc.title Relaxation of protons in pores in a sandstone en_US
dc.parent Journal of Physical Chemistry B en_US
dc.journal.volume 106 en_US
dc.journal.number 11 en_US
dc.publocation Washington D.C. en_US
dc.identifier.startpage 2928 en_US
dc.identifier.endpage 2932 en_US
dc.cauo.name Science en_US


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