Ifp Energies Nouvelles

Ipf Energies Nouvelles

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Bruno Garcia

Virgile Rouchon

Violaine Lamoureux-Var

Daniel Pillot

Adrian Cerepi

Valerie Beaumont

Claudio Fernandes-Marto

Maria-Fernanda Romero-Sarmiento

Isabelle Kowalewski

Olivier Le Roux

Geremie Letort

Herve Deschamps

Corinne Loisy

Thomas Wagner

Anabel Aboussou

Christian März

Isabelle Durand

Jean Tricard

Brigitte Doligez

Bernard Langlois

Jean Rillard

Claude Bertrand

Olivier Willequet

James Oliver Buckman

Eric Ferne

Zsuzsanna Szabo

Thierry Walrave

Miguel Garcia

Aurelien Cherubini

Audrey Estublier

Laurent Besson

Christian MÄRZ

M Claudio Fernandes-Marto

A rock sample is subjected to a heating sequence in an inert atmosphere, the effluents resulting from this heating are oxidized, the hydrocarbon-based compounds, the CO, the COand the SOreleased are measured, and a pyrolysis pyritic sulfur content is deduced therefrom. The residue resulting from the heating in an inert atmosphere is then heated in an oxidizing atmosphere and the CO and the COreleased are measured. The pyritic sulfur content is determined at least from the pyrolysis pyritic sulfur content and from a parameter which is a function of the hydrogen content and of the oxygen content of the organic matter of the sample. It is also possible to determine the organic sulfur content from the pyritic sulfur content and from a measurement of the SOduring the heating sequence in an oxidizing atmosphere.

Process for quantifying the pyritic sulfur and the organic sulfur of a rock sample

The invention is a method for the exploitation and/or monitoring of an underground formation having at least one reservoir comprising water, at least one gas species of interest and at least one atmospheric isotope of at least one rare gas present in dissolved form in the water of the reservoir. The method includes at least (1) taking at least one gas sample at the level of at least one collection of water from the reservoir, the collection being at the surface and the sampling being carried out to avoid any contamination with the air; (2) measuring at least the concentration of at least the gas species and the concentration of at least an atmospheric isotope of the rare gas in the gas sample; (3) determining the concentration of the gas species of interest dissolved in the water of the reservoir by a model.

Method for exploitation and/or monitoring of an aquifer comprising at least one dissolved gas

A method which distinctly characterizes and quantifies the pyritic sulfur and the organic sulfur of a sedimentary rock sample. A rock sample is subjected to a heating sequence in an inert atmosphere which produces effluents resulting which are continuously oxidized. SOis continuously measured, and a pyrolysis sulfur content and a pyrolysis pyritic sulfur content are deduced therefrom. The residue from heating in an inert atmosphere is then heated in an oxidizing atmosphere. Released SOis continuously measured and at least an oxidation sulfur content is deduced therefrom. The pyritic sulfur content is determined from pyrolysis, a weighting function, a second parameter representing the impact of the mineral matrix and a third parameter representing the impact of the organic matrix.

Method for quantifying the pyritic sulfur and the organic sulfur of a rock sample

The invention relates to a device for determining petrophysical parameters of an underground formation, comprising at least two electrodes (EL), a means for emitting a frequency-variable electric current (MEC), and a means for measuring electrical resistivity (MRE) in terms of amplitude and phase, two of the electrodes (EL) cooperating with the emission means (MEC) and at least two of the electrodes (EL) cooperating with the means for measuring resistivity (MRE), a means for measuring a difference in electrical potential (MDP) cooperating with at least two of the electrodes (EL). The invention is particularly applicable to oil exploration and development.

Device for determining petrophysical parameters of an underground formation

Method of exploiting and/or of monitoring the exploitation of a fluid such as a hydrocarbon fluid present in at least one geologic layer of an underground formation. From consecutive pressure and spontaneous potential measurements taken at least at one measurement point in at least one well drilled through at least the geologic layer of interest, the slope of a curve showing the evolution of the spontaneous potential gradient as a function of the pressure gradient is determined. Then, from this slope and from a graph representative of the evolution of the electrokinetic coupling coefficient as a function of the salinity for the layer considered, a salinity value is determined at the measurement point.

Method for monitoring salinity within an underground formation

The invention is a method of assessing at least one petroleum characteristic of a rock sample. Starting from a temperature ranging between 50&#xb0; C. and 120&#xb0; C., the temperature of a rock sample is raised to a temperature ranging between 180&#xb0; C. and 220&#xb0; C. Temperature (T) is maintained for a predetermined time duration. The temperature of the sample is increased to a temperature (T) ranging 330&#xb0; C. and 370&#xb0; C. Temperature (T) is maintained for a predetermined time duration. The temperature of the sample is then raised to a temperature (T) ranging 630&#xb0; C. and 670&#xb0; C. Three quantities S, Sand S, representative of the amount of hydrocarbon compounds released during the temperature change stages, are measured and at least one petroleum characteristic of the sample is deduced from these quantities.

Method of assessing at least one petroleum characteristic of a rock sample

A facility for monitoring a geological storage site for storing a gas, such as COor methane, comprises, in combination, at least one geochemical measurement device (DMG), comprising a plurality of gas sampling probes (SPG) connected to a gas analyzer (AG), an electrical measurement device (DME) comprising a plurality of electrodes (ELEC) and a resistivity meter (RES), and a meteorological station (SM). The geochemical and electrical measurement devices are controlled by a logic controller (AUT). The geochemical and electrical measurement devices and the meteorological station are connected to a data collector (COLL) that is itself connected to means for transmitting said data (MTD).

Facility for monitoring geological gas storage sites

The invention is a method of assessing at least one petroleum characteristic of a rock sample. Starting from a temperature ranging between 50&#xb0; C. and 120&#xb0; C., the temperature of a rock sample is raised to a temperature ranging between 180&#xb0; C. and 220&#xb0; C. which is maintained for a predetermined time duration. The temperature of the sample is increased to a temperature ranging between 330&#xb0; C. and 370&#xb0; C. which is maintained for a predetermined time duration. The temperature of the sample is then raised to a temperature ranging between 630&#xb0; C. and 670&#xb0; C. Three quantities representative of the amount of hydrocarbon compounds released during the temperature change stages are measured and at least one petroleum characteristic of the sample is deduced from these quantities.

Method for determining quantities of hydrocarbon compounds contained in rock from a geological sample

A device for monitoring an formation below the ground G containing a fluid such as COor methane comprising a measuring cell arranged in a cavity, can an F analyzer disposed on the surface and a sealed connection connecting measuring cell to the analyzer. The measuring cell comprises two chambers that can sealingly communicate with one another. The first chamber comprises a plurality of orifices allowing passage of the fluid into first chamber, at least two inner electrodes and fluid circulator. The second chamber is impervious to the fluid. Applications include monitoring of geological storages sites for gas such as CO.

Permanent soil and subsoil measurement probe

The invention relates to a fluid sampling device comprising a sample chamber () including a lower piston (), an upper piston () and an intermediate piston (). Intermediate piston () is moved so as to guarantee a substantially constant volume for chamber () when closing the chamber.

Device for sampling fluid under pressure for geological site development monitoring

The present invention is a method of monitoring recovery site hydrocarbons (HC) using an unconventional method which permits quantifying the HC present in zones above the exploration and development zone. The method according to the invention is based on the adjustment of a model describing the gas concentration as a function of time, using in-situ geochemical analyzes of rare gases and, when appropriate, of injected gas used for fracturing, contained in fluid phases of subsoil samples. By use of rare gas analysis, the method according to the invention allows anticipation of hydrocarbon leakage above the exploration/development site.

Method of monitoring unconventional hydrocarbon exploration and development sites

The invention is a device for sampling fluids under pressure from a well which comprises a chamber for retaining the fluid within a sample chamber (). The chambers includes a first piston which allows or prevents fluid inflow into the lower part of the chamber. The first piston is displaced by means comprising an elastic element () disposed in a chamber filled with oil and connected to the piston by a rod (). Sampled fluid transfer means allows control of the descent of a second piston () from the upper part to the lower part of the chamber so that the fluid remains at constant pressure in chamber during the transfer.

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Rueil Malmaison, France

Bruno Garcia