Ifp Energies Nouvelles

Iryna Malinouskaya

Christophe Preux

Didier Granjeon

Patrick Rasolofosaon

Veronique Gervais-Couplet

Nicolas Guy

Adeline Martin

Aline Delbos

The present invention is a method for exploiting a sedimentary basin using an updated stratigraphic model based on updating a stratigraphic model according to measurements performed in a basin. The method comprises steps of i) determining at least a first spatial distribution of the values of an attribute representative of the basin stratigraphy, and applying a classification method for converting this first spatial distribution to a first classified image; ii) performing a stratigraphic simulation with first parameter values of the simulation, deducing therefrom a second spatial distribution of the values of the attribute and applying the same classification method identically to determine a second classified image; iii) determining a distribution of local dissimilarities between the first and second classified images, and modifying the values of at least one of the stratigraphic simulation parameters to minimize an objective function formed from at least the local dissimilarity distribution; and iv) updating the stratigraphic model by performing at least one stratigraphic simulation with the modified simulation parameter values.

Method for updating a stratigraphic model of a sedimentary basin based on measurements

The invention relates to a method for recovery of hydrocarbons present in an underground formation by injection of a saline aqueous solution comprising at least one surfactant, by means of a numerical flow simulator including a model of the evolution of the interfacial tension between the saline aqueous solution and the hydrocarbons as a function at least of salinity, wherein the interfacial tension evolution model is calibrated as follows: i) carrying out interfacial tension measurements for a plurality of emulsions having distinct salinity values corresponding at least to the optimum salinity, to two salinities bounding the optimum salinity in a 5-10% limit, to the zero salinity and to the solubility limit of the salts; ii) determining the constants of the interfacial tension evolution model by minimizing a difference between the model and the interfacial tension measurements.

Method for hydrocarbon recovery from an underground formation by injection of a saline aqueous solution comprising a surfactant

A process for the exploitation of a deposit of hydrocarbons by injection of an aqueous solution with polymer includes calibration of the constants involved in an analytical expression of a model for displacement of the polymer which is a function of at least the concentration and of another parameter, such as the salinity, the shear rate and the temperature.

Process for the exploitation of a deposit of hydrocarbons by injection of a polymer

The present invention relates to a production method for hydrocarbons contained in an underground formation penetrated by at least one well. The method is based on the determination of at least one productivity index IP dependent on the temperature and pressure.

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Rueil-Malmaison, France

Iryna Malinouskaya