Abstract: A method for preparing a catalytic material of an electrode for electrochemical reduction reactions, which comprises: a) a step of electrolysis of at least one aqueous and/or organic solution comprising at least one precursor of the active phase comprising at least one group VIB metal in order to obtain a solution comprising at least one precursor comprising at least one group VIB metal which has been partially reduced; b) a step of impregnation of said support with said solution obtained in step a) in order to obtain a catalytic material precursor; c) a step of drying said precursor obtained in step b) at a temperature below 250° C., without subsequent calcination; d) a step of sulfurization of the catalytic material precursor obtained in step c) at a temperature of between 100° C. and 600° C.

Abstract: The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out both, at the same time, the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid.

Abstract: The invention relates to a fluid suited for depollution of exhaust gas, notably in internal-combustion engines, allowing both to perform catalytic reduction of the nitrogen oxides (DeNOx) contained in the exhaust gas and to provide particulate filter (PAF) regeneration aid. The fluid is a homogeneous aqueous solution of a reductant or a reductant precursor for the DeNOx process, and it comprises a metallic additive for catalyzing the oxidation of exhaust gas particles. This metallic additive is a basic metal carbonate soluble in said aqueous solution. The invention also describes the preparation method and the use thereof for the depollution of exhaust gas of internal-combustion engines.

Abstract: The invention relates to a fluid suited for depollution of exhaust gas, notably in internal-combustion engines, allowing both to perform catalytic reduction of the nitrogen oxides (DeNOx) contained in the exhaust gas and to provide particulate filter (PAF) regeneration aid. The fluid is a homogeneous aqueous solution of a reductant or a reductant precursor for the DeNOx process, and it comprises a metallic additive for catalyzing the oxidation of exhaust gas particles. This metallic additive is a basic metal carbonate soluble in said aqueous solution. The invention also describes the preparation method and the use thereof for the depollution of exhaust gas of internal-combustion engines.

Abstract: The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out both, at the same time, the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid.

Abstract: The invention relates, on the one hand, to a composite material composition capable of neutralizing acid compounds and of being used under high temperature conditions, said composition being a mixture of a polymer material with a predetermined amount of reactive fillers, the mass fraction of the chemically active products ranges between 4 and 40% and the polymer material is selected from the vinylidene fluoride copolymers family, comprising a vinylidene fluoride monomer, and at least one monomer being selected from among the following monomers: hexafluoropropylene, perfluoro(methylvinyl)ether, perfluoro(ethylvinyl)ether, perfluoro (propylvinyl)ether, tetrafluoroethylene, perfluorobutylethylene, fluoropropylene, chlorotrifluoroethylene, chlorodifluoroethylene, chlorofluoroethylene, trifluoroethylene, and the monomer with the following formulation: CH2?CH—CF2—(CF2)4—CF3 and, on the other hand, to a pipe comprising at least one sheath made from the composite material composition.

Abstract: In each time period during which a facility is open, a difference is automatically checked for being greater than zero, between a minimum number of employees needed to open the facility and a current number of employees. The current number of employees is obtained based at least partially on workloads of activities in the facility, including normal activities whose workloads are determined based on forecasts and labor standards and at least one activity (“no-increment” activity) whose workload is to not be incremented. When the difference is greater than zero in any time period, an excess number of hours of minimum staffing are obtained based at least on the difference, and then allocated among the workloads of the normal activities, to obtain new workloads while keeping the workload of each no-increment activity unchanged. Therefore, workload of an no-increment activity is used in checking but the no-increment activity's workload is not incremented.

Abstract: A high-temperature drilling fluid is disclosed based on brine and on a mixture of solids of controlled grain size, with water, dissolved salts and insoluble mineral solids comprising at least in part a weighting material of a grain size such that its D50 ranges between 1 and 25 ?m and in part colloids of a grain size such that its D50 ranges between 0.2 and 2 ?m. The total volume fraction of the solids ranges between 30 and 50% in relation to the total volume, and the total volume comprises at least 10% by volume of the colloids.

Abstract: The invention pertains to a drilling fluid composition comprising:—at least one (per)fluoropolyether oil comprising recurring units of formula —CF(CF3)CF2O— said oil having a kinematic viscosity of 30 to 80 cSt measured according to ASTM D455 standard at 20° C. [oil (E)] and possessing a polydispersity index (PDI) of at least 1.15; and—at least one (per)fluoropolyether phosphate comprising at least one perfluoropolyoxyalkylenic chain and at least one phosphoric acid group, in its acid, amide, salt or ester form [phosphate (P)], to a method for its manufacture and to its use in a drilling rig equipment.

Abstract: The present invention relates to a well drilling, completion or workover fluid wherein the continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.

Abstract: Method of treating the area surrounding an acid gas storage well (1) using a reactive solution, wherein the following stages are carried out: a) injecting from the well a wash fluid for washing the rock of said surrounding area so that it no longer contains products reactive with said solution, b) injecting into the rock thus washed a predetermined volume of reactive solution suited to react with acid gases.

Abstract: A method of determining a long-term forecast for a particular week can include identifying a week type of the particular week, identifying a number of prior weeks having the same week type as that of the particular week, retrieving driver data for each of the prior weeks, and averaging the retrieved driver data.

Abstract: A high-temperature drilling fluid is disclosed based on brine and on a mixture of solids of controlled grain size, with water, dissolved salts and insoluble mineral solids comprising at least in part a weighting material of a grain size such that its D50 ranges between 1 and 25 ?m and in part colloids of a grain size such that its D50 ranges between 0.2 and 2 ?m. The total volume fraction of the solids ranges between 30 and 50% in relation to the total volume, and the total volume comprises at least 10% by volume of the colloids.

Abstract: A well drilling, completion or workover fluid has a continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.

Abstract: The present invention relates to a well drilling, completion or workover fluid wherein the continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.

Abstract: The present invention relates to a method of enriching a gaseous effluent with acid compounds, comprising the following stages: feeding into a contactor R1 a feed gas and a mixture of at least two liquid phases non-miscible with one another, including an aqueous phase, the feed gas containing at least acid compounds, establishing in said contactor predetermined pressure and temperature conditions for the formation of hydrates consisting of water and of acid compounds, carrying the hydrates dispersed in the phase non-miscible in the aqueous phase by pumping P1 to a hydrate dissociation drum R2, establishing in the drum the hydrate dissociation conditions, discharging the gas resulting from the dissociation enriched in acid compounds in relation to the feed gas.

Abstract: The invention relates to a method of treating permeable rocks wherein the following stages are carried out: producing particles of nanometric size comprising an active anti-mineral-deposit water-soluble polymer encapsulated in either a matrix so as to form a nanocomplex or a nanosphere, or in a membrane so as to form a nanocapsule; maintaining an amount of said particles dispersed in a liquid phase; injecting the dispersion into the permeable rock; and releasing the active polymer upon contact with salt water.

Abstract: The present invention relates to a well drilling, completion or workover fluid wherein the continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.

Abstract: A method for thermal insulation comprises positioning a gel formed between an insulating liquid base, which may or may not be a phase change material, and at least one gelling agent comprising at least one polysiloxane, which may or may not be modified, and in situ cross linking of the gelling agent, optionally in the presence of at least one compatibilizing agent. More particularly, it is used to insulate a flowline or a pipeline, in particular for ultradeep operations at temperatures of 2° C. to 200° C. Cross-linkable formulations, the various cross-linking processes and the insulating gels obtained are described.