Examination of porosity by nmr and intrusion porosimetry
作者： Edmund Fordham , Jonathan Mitchell
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摘要: Properties of a porous solid sample19, which may be core rock taken from below ground are carried out using apparatus performs both nuclear magnetic resonance (NMR) and porosimetry measurements. The has magnet 11,12 providing field radiofrequency coil 20 for transmitting and/or receiving electromagnetic radiation so as to bring about NMR in the field, pressure vessel 14, 15 hold sample19within supply non-wetting liquid connected vessel, means apply force into pores sample19 measure applied volume thereof up by sample. non- wetting increased steps, intruded at each step give measurement pore throat size such diameter equivalent sphere. mercury observe Knight shift 99 Hg,
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