FIELD: measurement equipment.
SUBSTANCE: to determine weight concentration of a clay material in a sample of porous medium, they measure specific active surface of a clay material and initial specific active surface of a sample of a porous medium. An aqueous solution of a clay material is injected into a sample, specific active surface of the sample of the porous medium is measured after injection, and weight concentration ncl of the clay material is measured.
EFFECT: provision of the possibility to measure low weight concentration of a clay material that penetrated pore space in process of injection of a clay-containing solution.
2 cl, 1 dwg
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