Ifp Energies Nouvelles

Christophe Preux

Thierry Gauthier

Iryna Malinouskaya

Mickaele Le Ravalec

Bernard Bourbiaux

Guillaume Enchery

Arnaud Lange

Matthieu Dreillard

Pierre Louis Carrette

Benjamin Braconnier

Nicolas Guy

Lahcen Nabzar

Adeline Martin

Aline Delbos

Etienne Combe-Laboissiere

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 invention is a method for operating a hydrocarbon deposit by injection of gas in foam form, comprising determining a model of displacement of the foam which is a function of an optimal mobility reduction factor of the gas and at least one interpolation function dependent on a parameter and constants to be calibrated. The mobility reduction factor of the gas is determined and the constants of at least one interpolation function are calibrated from experimental measurements comprising injections of gas in non-foaming form and in foam form into a sample of the deposit for different values of the parameter relative to the function being considered. Measurements of headloss corresponding to each value of the parameter of the interpolation function are considered. The calibration of the constants is performed interpolation function by interpolation function.

Method for operating a hydrocarbon deposit by injection of a gas in foam form

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.

Hydrocarbon production method comprising a productivity index of the wells subject to thermal effect

The invention relates to a method for exploiting (EX) a geological reservoir according to an exploitation scheme (SE) defined on the basis of a matched reservoir model (CAL) with static data and dynamic data. For this method, a first reservoir model (MR) displaying a certain consistency with respect to the flow properties of the medium is preselected. This preselected model (MR) is then used as starting point for the history matching process (CAL).

Method for exploiting a geological reservoir by means of a matched reservoir model consistent with the flow properties

A method for optimizing the development of a fluid reservoir by means of an accelerated reservoir study. A geological model is constructed. A reservoir model is then constructed by upscaling the geological model. The links between cells of the geological model and a cell of the reservoir model where they are contained are determined and stored. Flow simulations are carried out by computer-implemented reservoir simulator, the reservoir model and the links. The above stages are then repeated without repeating the link determination, by modifying parameters of the reservoir study to optimize the development scheme. Finally, the reservoir is developed according to this optimized development scheme.

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Acheres, France

Christophe Preux