METHOD FOR CHARACTERISING THE PRESENCE OF POLYMERS AND/OR QUANTIFYING POLYMERS IN A POROUS MEDIUM

The invention concerns a method of characterizing a polymer (Pol) in a porous medium (Mil), wherein at least the following steps are carried out:a) heating a porous medium sample (Mil), in an inert atmosphere, and continuously measuring a representative quantity of hydrocarbon compounds, a representative quantity of carbon monoxide and/or a representative quantity of carbon dioxide released,b) heating a residue of said sample in an oxidizing atmosphere, and measuring a representative quantity of carbon monoxide and a representative quantity of carbon dioxide released,c) comparing at least the quantities measured in steps a) and b) with reference parameters of a first polymer database (Pol),d) determining the presence or the absence of a polymer (Pol) in porous medium (Mil) from the measurement comparison made in step c) and/or quantifying polymer (Pol) in porous medium (Mil).