Ifp Energies Nouvelles

Vinci Technologies

Frank Haeseler

Violaine Lamoureux-Var

Daniel Pillot

Valerie Beaumont

Françoise Behar

Geremie Letort

Jean Espitalie

Roland Antonas

Gérémie Letort

Valérie Beaumont

The invention relates to a method and to a device for sulfur characterization and quantification in a sample of sedimentary rocks or of petroleum products wherein the following stages are carried out: heating said sample in a pyrolysis oven () in a non-oxidizing atmosphere, oxidizing part of the pyrolysis effluents and continuously measuring the amount of SOgenerated by said part after oxidation, then transferring the pyrolysis residue of said sample into an oxidation oven (') and continuously measuring the amount of SOcontained in the effluents resulting from said oxidation heating.

Method and device for fast sulfur characterization and quantification in sedimentary rocks and petroleum products

Method of determining the compositional evolution of fluids present in a porous medium as a result of biodegradation. A biodegradation compositional scheme is defined from twelve chemical classes allowing the hydrocarbons and the gases resulting from biodegradation to be described. The initial amount of each one of these chemical classes contained in the fluids before biodegradation is determined. A reaction scheme is then defined for biodegradation, wherein the chemical classes react with electron acceptors according to parallel reactions having different velocities, and each class reacts with these acceptors according to sequential reactions. The biodegradation reaction velocities are determined for each class. The composition of the fluids is then deduced by assessing the amount of each chemical class by applying the reaction scheme. The composition of the biodegraded hydrocarbons, as well as the amount of acid gas and of methane produced, are notably deduced. Application: notably petroleum reservoir development.

Method of predicting changes in the chemical composition of a reservoir oil as a result of biodegradation

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La Garenne Colombes, France

Frank Haeseler