G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/24 (2006.01) G01N 31/12 (2006.01)
Patent
CA 2563876
The invention relates to a method for determining at least one oil characteristic of a geological sediment sample consisting in heating said sample in an oxidising atmosphere in such a way that the temperature thereof is gradually increased to the first and, afterwards the second value, wherein said first value lower than 200 ·C is very rapidly attainable and is maintained substantially constant for a certain time and said second value ranging from 600 ·C to 850 ·C is attainable from the first value according to a temperature gradient ranging from 1 to 30 ·C/min. The inventive method also consists in continuously measuring at each instant of the sample heating time the amount of SO¿2? contained in a flow resulting from said oxidising heating.
L'invention concerne une méthode pour permettre la détermination d'au moins une caractéristique pétrolière d'un échantillon de sédiment géologique, dans laquelle l'échantillon est chauffé en atmosphère oxydante, sa température étant élevée successivement jusqu'à une première puis une seconde valeur, ladite première valeur inférieure à 200~ C étant atteinte très rapidement puis maintenue sensiblement constante pendant un certain temps, ladite seconde valeur comprise entre 600~ C et 850~ C étant atteinte selon un gradient de température compris entre 1 et 30~ C/min, à partir de ladite première valeur. Selon l'invention, on mesure en continu, à chaque instant de la période de chauffe dudit échantillon, la quantité de S02 contenu par l'effluent résultant de ladite chauffe oxydante.
Institut Francais Du Petrole
Robic
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