Catalytically-generated gas in hydrocarbon bearing source rocks

G - Physics – 01 – N

Patent

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G01N 33/24 (2006.01) G01N 33/00 (2006.01)

Patent

CA 2748584

The present disclosure is directed to assaying rock samples (e.g., core samples) for the presence of catalytically-generated gases, such as methane for example. According to one or more aspects of the present disclosure, a method for assaying a rock sample comprises sealing a carbonaceous rock sample in a container having an atmosphere and assaying for a quantity of catalytically-generated gas in the sealed container. The method may comprise generating the catalytically-generated gas in response to a catalytic reaction between the carbonaceous material in the carbonaceous rock sample and a low-valent transition metal that is present in the carbonaceous rock sample. The catalytic reaction may occur in a static atmosphere of the sealed container.

La présente invention concerne une expérimentation conduite sur des échantillons de roche (par exemple, échantillons de carotte) pour déterminer la présence de gaz générés catalytiquement, tels que le méthane par exemple. Selon un ou plusieurs aspects de la présente invention, un procédé d'analyse d'un échantillon de roche comprend le scellement d'un échantillon de roche carbonée dans un contenant doté d'une atmosphère et le dosage d'une quantité d'un gaz généré catalytiquement dans le contenant scellé. Le procédé peut comprendre la génération du gaz généré catalytiquement en réponse à une réaction catalytique entre le matériau carboné dans l'échantillon de roche carbonée et un métal de transition à faible valence qui est présent dans l'échantillon de roche carbonée. La réaction catalytique peut se produire dans une atmosphère statique du contenant scellé.

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