Prediction of permeability from capillary pressure curves...

Details Prediction of permeability from capillary pressure curves... Prediction of permeability from capillary pressure curves...

G - Physics

01

V

G01V 3/00 (2006.01) G01V 3/14 (2006.01) G01R 33/44 (2006.01)

Patent

CA 2272997

Capillary pressure curves can be derived from nuclear magnetic resonance (NMR) pore size distributions. These derived capillary pressure curves can be used to derive the displacement pressure, the fractional bulk volume of mercury at infinite pressure and a geometrical factor. These factors can be used to accurately predict permeability from an NMR derived capillary pressure curve.

L'invention concerne des courbes de pression capillaire pouvant être établies par répartition de la dimension des pores par résonance magnétique nucléaire (RMN). Les courbes de pression capillaire ainsi obtenues peuvent être utilisées pour calculer la pression de déplacement, le volume brut fractionné du mercure à pression infinie, et un facteur géométrique. Ces facteurs peuvent être utilisés pour prédire avec exactitude la perméabilité à partir d'une courbe de pression capillaire établie par RMN.

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