Geoservices Equipements

Geoservices Equipments

Farouk Kimour

Patrice Ligneul

Jerome Breviere

Eric Villard

Pawel Kasprzykowski

Method and apparatus for determining the relative content of a first rock species and of a second rock species in a rock sample extracted from a wellbore. The method comprises adding a reactant to the rock sample, measuring a first information (P) relative to a first amount of compound produced at a first instant (T1) and a second information (P) relative to a second amount of compound produced at a second instant (T2). The method also comprises calculating the relative content of the first species in the rock sample from the first information (PT1) and calculating the relative content of the second species in the rock sample from the second information P). The method comprises determining a corrected amount (Cv) of compound generated by the reaction of the second species with the reactant at the first instant (T1), and calculating the relative content of the first species in the rock sample and the relative content of the second species in the rock sample based on the corrected amount (Cv).

Method and apparatus for determining relative content of two rock specie in a wellbore rock sample

The method includes extraction of gases contained in a mud, in order to obtain a gas stream of extracted gases containing hydrocarbons to be analyzed and at least one parasitic compound. The method includes transporting the gas stream through a transport line () and passing it through a separation column () in order to separate the hydrocarbons to be analyzed according to their elution times in the separation column (). The parasitic compound is likely to have an elution time in the separation column () between the elution time for the first hydrocarbon to be analyzed and the elution time of the final hydrocarbon to be analyzed. The method includes passing the gas stream over a surface () for chemical and/or physical interaction with the parasitic compound in order to selectively retain the or each parasitic compound without retaining the hydrocarbons to be analyzed.

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Courbevoie, France

Farouk Kimour