METHOD FOR DETERMINATION OF RESIDUAL WATER SATURATION AND PERMEABILITY OF BED Russian patent published in 2010 - IPC G01V11/00 

FIELD: mining.

SUBSTANCE: geophysical survey (GS) of wells are carried out, as well as laboratory research of core, parametres of porosity and residual water saturation are determined. Permeability of bed is determined on the basis of functionally correlation relation of permeability with parametres of porosity and residual water saturation produced on the basis of analysis of core laboratory research data. Residual water saturation is estimated as a result of determination of direct correlation-regression dependence of data of core residual water saturation on data of GS set. Besides to determine residual water saturation of bed, only those types of GS are carried out, parametres of which correlate dependence of residual water saturation with residual water saturation of core.

EFFECT: increased validity of results, increased efficiency.

2 dwg