MEASUREMENT OF PARAMETERS RELATED WITH PASSAGE OF FLUID MEDIA IN POROUS MATERIAL Russian patent published in 2015 - IPC G01N15/08 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement of physical properties related to passage of fluid phase in porous material. The method to assess physical parameters of porous material contained in the flow of fluid media includes stages, at which the material sample (2) is placed into a tight chamber (1) so that the inlet side (3) of the sample communicates with the first volume (V₀), and so that the outlet side (4) communicates with the second volume. In the first volume they perform modulation of pressure, and during the time they measure changes of appropriate pressures in the first volume and the second volume. With the help of a differential equation, parameters of which include internal permeability of material, its porosity and its Klinkenberg coefficient, they perform digital analysis of changes in measured pressures for assessment of at least internal permeability and Klinkenberg coefficient, and also preferably its porosity in process of one experiment.

EFFECT: increase of assessment of permeability k_I and Klinkenberg coefficient b, and also possibility to simultaneously perform assessment of porosity ϕ in process of one experiment.

13 cl, 28 dwg, 4 tbl