Abstract: A method of constructing a well log of a quantitative property representative of a porous formation, from sample measurements and log data, is disclosed. A quantitative property (mineralogical proportions) of samples selected from among a set of samples is measured and each sample is grouped into homogeneous classes regarding the log data. The average value of the quantitative property is then determined in each class. A well log representing the probability of assigning a sample to each class as a function of depth is constructed. Finally, the well log representing the quantitative property as a function of depth is constructed from the log representing the assignment probability and from the average values.

Abstract: The catalytic reactor consists of a chamber 1 that contains at least one catalyst bed 2 in solid form, with the reactor being supplied with effluent to be treated by a pipe 3 that empties into a separation means 4 between gas and liquid, with the liquid obtained from the separator being collected in a tank, and a plate 9 being arranged between the separation means 4 and the solid catalyst bed 2. The plate 9 consists of at least two closed boxes 10, with at least two vertical tubes 11 provided with openings 12 linking with the interiors of the boxes 10 passing through the boxes, and with the liquid distribution means 8 channeling the liquid from the tank into said boxes 10.

Abstract: The invention relates to a method of developing an underground reservoir, notably a petroleum reservoir, traversed by at least a first well from which a fluid is produced, wherein a position of at least a second well to be drilled is determined by means of a production indicator map comprising a set of cells, each cell being associated with a production indicator defining an impact, on the fluid production, of a well addition in this cell. The method comprises constructing the map by: a) determining production indicators on a first group of cells of the map; b) determining production indicators on a second group of cells of the map; c) interpolating said production indicators on all the cells of the map; and defining the position of the second well by the cell where the production indicator is maximal.

Abstract: The invention describes a process for oligomerization of olefins into compounds or into a mixture of compounds of general formula CpH2p with 4?p?80 that employs a catalytic composition that comprises at least one organometallic complex of an element of group IV that is selected from among titanium, zirconium, or hafnium, whereby said organometallic complex contains at least one alkoxy-type ligand that is functionalized by a heteroatom that is selected from among nitrogen, oxygen, phosphorus or sulfur, or by an aromatic group.

Abstract: The present invention describes a process for converting a heavy feed which is flexible for the production of propylene, gasoline and middle distillate. The process uses a catalytic cracking unit and a unit for the oligomerization of C4 to C9 olefins. The process of the invention includes selective hydrogenation of the unrefined gasoline cut obtained from the catalytic cracking unit and separation between a light gasoline cut and a heavy gasoline cut, the light gasoline being directed to the oligomerization unit.

Abstract: The invention relates to a catalytic composition that comprises at least one precursor of iron or cobalt, at least one organic ligand, and an activating agent that consists of at least one derivative of aluminum and at least one organic compound having at least one alcohol group and/or at least one amine group, and in which the molar ratio between the aluminum and the alcohol and/or amine group number present in said organic compound of said activating agent is preferably greater than or equal to 1. The invention also relates to a process for oligomerization of olefins using said catalytic composition.

Abstract: The invention relates to a pipe element comprising at least one hoop-wound tube (T), said hoop-wound tube (T) comprising a central part consisting of a metal core (A) covered by at least one hoop layer (F), at least one connecting means (C). Hoop-wound tube (T) also comprises at least one transition element (B) welded, on one side, to one end of said core (A) and, on the other side, to one end of connecting means (C). This pipe element can be used as an auxiliary line of a drilling riser pipe.

Abstract: The invention concerns a catalyst containing a support comprising at least one binder and at least one zeolite having at least one series of channels the opening of which is defined by a ring containing 12 oxygen atoms, said catalyst comprising phosphorus, at least one C1-C4 dialkyl succinate, acetic acid and a hydrodehydrogenating function comprising at least one element from group VIB and at least one element from group VIII, the Raman spectrum of the catalyst comprising bands at 990 and/or 974 cm?1, characteristic of at least one Keggin heteropolyanion, the characteristic bands of said succinate and the characteristic principal band of acetic acid at 896 cm?1. The invention also concerns the process for preparing the catalyst and its use in hydroconversion.

Abstract: The present invention relates to a method for the continuous production of hydrocarbons from synthesis gas in the presence of a catalyst comprising a synthesis step in which a synthesis gas is reacted in the presence of a catalyst in a Fischer-Tropsch synthesis reactor (4), characterised in that, at the same time as the synthesis step, the following successive steps are carried out: a) charging a catalyst precursor comprising cobalt oxide in a reduction reactor (2); b) reducing the catalyst precursor charged in step a) by placing it in contact with a reduction gas comprising hydrogen (H2) and/or carbon monoxide (CO); and c) introducing the catalyst reduced in step b) into the synthesis reactor (4).

Abstract: The invention relates to a process for conversion of a paraffinic feedstock that has a number of carbon atoms of between 9 and 25, whereby said paraffinic feedstock is produced starting from renewable resources, employing a catalyst that comprises at least one hydrogenating-dehydrogenating metal that is selected from the group that is formed by the metals of group VIB and group VIII of the periodic table, taken by themselves or in a mixture, and a substrate that comprises at least one IZM-2 zeolite and at least one binder, with said process being carried out at a temperature of between 150 and 500° C., at a pressure of between 0.1 MPa and 15 MPa, at an hourly volumetric flow rate of between 0.1 and 10 h?1, and in the presence of a total quantity of hydrogen mixed with the feedstock such that the hydrogen/feedstock ratio is between 70 and 2,000 Nm3/m3 of feedstock.

Abstract: A process for the preparation of a catalyst from a catalytic precursor comprising a support based on alumina and/or silica-alumina and/or zeolite and comprising at least one element of group VIB and optionally at least one element of group VIII, by impregnation of said precursor with a solution of a C1-C4 dialkyl succinate. An impregnation step for impregnation of said precursor which is dried, calcined or regenerated, with at least one solution containing at least one carboxylic acid other than acetic acid, then maturing and drying at a temperature less than or equal to 200° C., optionally a heat treatment at a temperature lower than 350° C., followed by an impregnation step with a solution containing at least one C1-C4 dialkyl succinate followed by maturing and drying at a temperature less than 200° C. without subsequent calcination step. The catalyst is used in hydrotreatment and/or hydroconversion.

Abstract: This invention has as its object a process for selective hydrogenation of an unsaturated olefinic feedstock that comprises 3 or 4 carbon atoms, using at least two switchable fixed-bed reactors, each containing at least one catalytic bed and in which said feedstock successively passes through all of the reactors, and in which, each time that one of the reactors is deactivated, the point of introduction of the feedstock is moved downstream.

Abstract: The present invention describes a process for catalytic cracking associated with a unit for amine treatment of regeneration fumes from the catalytic cracking unit, which process uses at least one counter-pressure turbine to operate the cracked gas compressor and/or the regenerative air blower which can be used to improve the CO2 balance by delivering a CO2 credit.

Abstract: The present invention describes a process for the production of octenes from ethylene by dimerizing ethylene to butenes and by dimerizing butenes to octenes.

Abstract: The invention is a system for predicting emissions of pollutants from a vehicle equipped with an engine using processors (3) to determine emission of pollutants: The processors include a first group of processors (1) for carrying out calculations of chemical kinetics for determining the amounts of chemical compounds present in a chemical reaction in the engine and a second group of processors (2) for carrying out calculations of emission of pollutants simultaneously with the calculation of chemical kinetics, allowing determination of the emission of pollutants from the calculated amounts of chemical compounds. The first group of processors (1) has a global supervisor processor (4) allowing storing data required for the calculations and to distribute the calculations to clusters (5) of processors.

Abstract: A method for continuous production of hydrocarbons from synthesis gas in the presence of a cobalt-based catalyst which comprises a step of providing synthesis gas from a source (1) of synthesis gas in a Fischer-Tropsch synthesis reactor (4). The method also includes the following steps: a) conditioning of the catalyst in reduced state in a conditioning reactor (2) by contact with a flow of reducing gas from a synthesis gas source supplying the synthesis reactor, the reducing conditioning gas comprising carbon monoxide (CO) or a mixture comprising hydrogen (H2) and carbon monoxide (CO), the H2/CO molar ratio of which is between 0.1 and 0.9, at a temperature between 200 and 500° C., and a total pressure between 0.1 and 5 MPa and under a gas flow between 1 and 20 NI/h/g of catalyst to be treated, b) supply of reduced catalyst conditioned in step a) to the synthesis reactor (4).

Abstract: The invention relates to a process for coal conversion, optionally in co-processing with other feedstocks, notably of the biomass type, comprising at least one liquefaction step, followed by a fixed-bed hydrocracking step and a catalytic reforming step. With this process, aromatic compounds can be obtained from a feedstock containing coal.

Abstract: A process for the conversion of carbon-based material to fuel bases by a hybrid route combining direct ebullent bed liquefaction and indirect liquefaction by gasification followed by a Fischer-Tropsch synthesis, including a stage of production of hydrogen resulting from non-fossil resources and a reverse water gas reaction stage. This process makes it possible to limit emissions of greenhouse gases.

Abstract: Catalytic composition comprising at least one Brønsted acid, designated HB, dissolved in a non-aqueous liquid medium of general formula Q1+A1?, in which Q1+ represents an organic cation and A1? represents an anion, said composition also comprising an additive Q2+A2? in which Q2+ represents an organic cation containing at least one alcohol function and A2? represents an anion. The invention also relates to an isobutene dimerization process using the catalytic composition.

Abstract: The present invention describes a process for the conversion of a heavy feedstock for improving the production and selectivity for middle distillate, said process using a catalytic cracking unit followed by a unit for selective hydrogenation of the heavy distillate cut (HCO) or any other cut rich in triaromatic compounds before recycling it to the FCC reaction zone in order to maximize the middle distillate cut.