| Patent Number |
Title Of Patent |
Date Issued |
| 6011334 |
In-line fluid-driven electric power generator |
January 4, 2000 |
| An electric power generator driven by a fluid circulating under pressure in a pipe (9) includes an internal moving contact (1) placed inside a non-magnetic section (10) of the pipe (9), and a stator (4) placed around the pipe (9). The internal moving contact (1) includes permanent magnet |
| 6011094 |
Process for the preparation of bitumen-polymer compositions containing a crosslinked elastomer a |
January 4, 2000 |
| Bitumen/polymer compositions having improved mechanical properties are produced by stirring together, at a temperature of 100-230.degree. C., a bitumen or bitumen mixture, a sulphur-curable elastomer and a polymeric additive consisting of at least one functionalized olefin copolymer and |
| 5973080 |
Process for the preparation of resins with a primary amine or guanidine function, and resins thu |
October 26, 1999 |
| The process includes the reaction of a chloro-formamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV): ##STR1## |
| 5959203 |
Method for automatic identification of the nature of a hydrocarbon production well |
September 28, 1999 |
| The present invention proposes a method for automatic identification of the nature of a hydrocarbon production well, the nature of the associated reservoir and possible limits of this reservoir. It consists in processing the recordings of the value of the pressure at the well bottom, in |
| 5817889 |
Process for the purification of a glycol solution |
October 6, 1998 |
| An amount of water is added to a glycol solution to be purified to enable segregation of the resulting mixture into a hydrocarbon phase and a glycol phase. The hydrocarbon phase is separated from the glycol phase and said glycol phase is desalted, e.g. by electrodialysis, to give a desal |
| 5812493 |
Method of representing the trajectory of at least one borehole in a space-time domain |
September 22, 1998 |
| A method for representing in a space-time domain the trajectory of at one borehole by:a) producing a velocity-depth model (4) tied to the borehole (1), geologically representative of said area and including a representation of said trajectory (5) of said borehole;b) selecting at least on |
| 5784335 |
Method for making a 3-D cube of near traces from data acquired in a marine reflection seismic su |
July 21, 1998 |
| A method for making a 3-D cube of near traces from data acquired in a marine reflection seismic survey.A method for making a 3-D cube of near traces using at least one source (S.sub.1, S.sub.2) and a plurality of streamers (4 to 7) spaced from the source, each comprising receivers/record |
| 5766567 |
Method for desulphurising a gaseous mixture containing H.sub.2 S and SO.sub . |
June 16, 1998 |
| A single-stage low temperature catalytic process for desulphurisation of a gas which contains a mixture of H.sub.2 S and SO.sub.2 which process includes feeding the gas to be treated at a temperature below the dew point of sulphur to a Claus converter having a Claus catalyst in a rea |
| 5764514 |
Method for modelling kinematic seismic data processed with at least one motion operator |
June 9, 1998 |
| A method of modelling at least travel time and apparent dip from seismic data that has been processed by at least one migration operator comprising the steps of taking the mid-point (N.sub.1) of a source (S)/receiver (R) system, applying ray tracing to the system relative to a given refl |
| 5747673 |
Method for measuring with great precision the volume variation occurring when fluid phases mix i |
May 5, 1998 |
| A containment cell with two chambers (7) in a thermostat-controlled enclosure (3) is used to measure separately, at determined pressure levels, the volumes occupied separately by fluid phases, prior to measuring at the same pressures the volume occupied by the mixture thereof, so as |
| 5726253 |
Process for the preparation of resins with a primary amine or guanidine function, and resins thu |
March 10, 1998 |
| The process includes the reaction of a chloroformamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV):with X representing |
| 5725771 |
Process for enzyme pretreatment of drill cuttings |
March 10, 1998 |
| Process for the treatment of drilling muds recovered at the surface of the ground, especially synthetic muds, characterized in that it comprises at least one stage of hydrolysis of said mud by means of a lipase. |
| 5659090 |
Steps in a process for the production of at least one alkyl tertiobutyl ether from natural gas |
August 19, 1997 |
| The invention concerns steps in a process for the synthesis of at least one alkyl tertiobutyl ether, preferably respectively MTBE or ETBE, from at least one alcohol and from isobutene, each synthesized at least partially from natural gas. The alcohol, preferably methanol or ethanol r |
| 5656252 |
Process for obtaining zeolites containing titanium |
August 12, 1997 |
| The subject of the present invention is a process for the preparation of zeolites in which some of the silicon atoms are replaced by titanium atoms, by hydrothermal reaction of a silicon source with titanium tetrafluoride in the presence of a structuring agent. |
| 5645692 |
Process for the stabilization of crude oils at the outlet of the extraction well and device for |
July 8, 1997 |
| A method and apparatus for stabilizing crude oil at the outlet of a well, including at least one separation step wherein the crude oil is pressure distilled in at least one distillation column into at least two cuts, i.e., a C.sub.1-5 hydrocarbon gas cut recovered at the top of the colum |
| 5630906 |
Process for the delignifcation and bleaching of a lignocellulose material |
May 20, 1997 |
| A method is provided for delignifying and bleaching a lignocellulose material, wherein an aqueous solution of a redox catalyst and an oxidant is reacted with the material. The catalyst comprises an organometallic cation of the general formula [(1)Mno.sub.2 Mn(L)].sup.n+, wherein Mn is |
| 5607657 |
Removal of sulfur compounds in claus type residual gases with sulfur recovery |
March 4, 1997 |
| A process is disclosed for the removal of sulphur compounds from a residual gas so as to obtain a purified gas stream substantially free of sulphur compounds, which process comprises subjecting the residual gas to a combined hydrogenation and hydrolysis, cooling the gas to a temperature |
| 5592381 |
Device for processing and interpreting drilling data, placed at the bottom of a well and method |
January 7, 1997 |
| A device for processing and interpreting drilling data is mounted at the lower end of a drill-pipe string located in a drilling well and provided with a drill bit and, measuring assembly. The device is arranged to transmit data from the bottom to the surface, but transmits only abbre |
| 5532977 |
Processing method for obtaining a stack section with zero offsets |
July 2, 1996 |
| A method and device for obtaining a zero-offset seismic section from a stack seismic section produced from stack traces recorded along a given line of survey, is disclosed. The present method and device is directed to determining an interval velocity macro-model which defines a number of |
| 5523493 |
Process for the production of at least one alkyl tertiobutyl ether from natural gas |
June 4, 1996 |
| The invention concerns a process for the synthesis of at least one alkyl tertiobutyl ether, preferably respectively MTBE or ETBE, from at least one alcohol and from isobutene, each synthesized at least partially from natural gas. The alcohol, preferably methanol or ethanol respectively, |
| 5508013 |
Process for the production of sulphur from at least one sour gas containing hydrogen sulphide an |
April 16, 1996 |
| A process is provided for the production of sulphur from at least one sour gas containing H.sub.2 S and a gaseous or liquid fuel effluent, of the type comprising a thermal reaction step, wherein the thermal reaction step is conducted by performing the combustion of the gaseous or liquid |
| 5493058 |
Synthesis of methyl mercaptan from dimethyl disulphide |
February 20, 1996 |
| The invention relates to the manufacture of methyl mercaptan by catalytic hydrogenation of dimethyl disulphide on a catalyst based on sulphide(s) of at least one transition metal.The selectivity with respect to methyl mercaptan is considerably improved by working in the presence of water |
| 5472924 |
Catalysts based on highly dispersed metal oxides, comprising in particular zirconia |
December 5, 1995 |
| Catalyst comprising at least one zirconium oxide, characterized in that it consists, for at least 85% of its weight, of a thermally stable support with a specific surface greater than or equal to 150 m.sup.2 /g containing from 60 to 99 weight % of at least one zirconium oxide and from 40 |
| 5421165 |
Process for denitrogenation of a feedstock of a liquefied mixture of hydrocarbons consisting chi |
June 6, 1995 |
| The invention is a process for the denitrogization of a liquefied natural gas (LNG) comprising methane and at least 2 Mols. of nitrogen. The process is distinguished in that the LNG is introduced into the process as a liquid and is subject to an indirect heat exchange to cool the liquid |
| 5419861 |
Method for improving the paintability of objects fashioned from polyamide and polyolefin blends |
May 30, 1995 |
| A method for improving the paintability of a shaped object of which at least the outer portion is made of a polyamide/polyolefin alloy, wherein an electrical discharge is made to act on a gas in order to create a cold plasma type reactive gas stream, and the shaped object is brought into |
| 5348714 |
Liquid absorbing acidic gases and use thereof in diacidification of gases |
September 20, 1994 |
| An absorbent liquid for improved absorption capacity for CO.sub.2 in a gas due to the presence of an activator for CO.sub.2 absorbent from the gas, the absorption liquid comprising a mixture of one or more tertiary alkanolamines and an activator of CO.sub.2 absorption by the tertiary |
| 5314671 |
Process and device for removal of H.sub.2 S |
May 24, 1994 |
| Process for removing hydrogen sulfide at low concentration in a gas containing water vapor. The gas is cooled to a temperature below the dew point of water, which condenses and separates the water. The dry gas is scrubbed free of hydrogen sulfide by an H.sub.2 S-absorbent solvent for |
| 5277885 |
Liquid absorbing acidic gases and use thereof in deacidification of gases |
January 11, 1994 |
| Liquid absorbing acid gas compounds presenting an improved CO.sub.2 absorption capacity, said absorbing liquid containing one or a plurality of tertiary alkanolamines and a CO.sub.2 absorption activator. The activator is comprised of at least one amino compound selected among polyalk |
| 5209914 |
Liquid absorbing acidic gases and use thereof of in deacidification of gases |
May 11, 1993 |
| Liquid absorbing acid gas compounds presenting an improved CO.sub.2 absorption capacity, said absorbing liquid containing one or a plurality of tertiary alkanolamines and a CO.sub.2 absorption activator. The activator is comprised of at least one amino compound selected amongst polya |
| 5185140 |
Process for removing sulphur compounds from a residual gas |
February 9, 1993 |
| Process for removing sulphur-containing compounds from a residual gas with recovery of said compounds in the form of sulphur, wherein the residual gas is subjected to a treatment comprising a hydrogenation and a hydrolysis phase to provide the sulphur-containing compounds in the unique |
