Patents by Inventor Alain Rivereau
Alain Rivereau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110112211Abstract: The invention relates to a cementing material, to a production method and to a cement slurry comprising polymer particles coated with at least one powdered mineral additive.Type: ApplicationFiled: February 13, 2006Publication date: May 12, 2011Inventors: Annie Audibert, Eric Lecolier, Alain Rivereau, Bertrand Guichard, Patrick Vongphouthone
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Patent number: 7892348Abstract: The present invention relates to a formulation of a high-performance foamed cement material, comprising: at least one hydraulic binder, microparticles whose grain size ranges between 0.1 and 30 ?m, whose proportion ranges between 15% and 50% by mass in relation to the mass of hydraulic binder, mineral particles whose grain size ranges between 1 and 500 ?m, whose proportion ranges between 10% and 35% by mass in relation to the mass of hydraulic binder, the proportion of particles being lower than the proportion of microparticles, a hydrosoluble polymer thinning agent whose proportion ranges between 0.1% and 8% by mass in relation to the mass of hydraulic binder, water whose proportion is at most 40% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 0.1% and 10% by mass in relation to the mass of hydraulic binder.Type: GrantFiled: September 9, 2009Date of Patent: February 22, 2011Assignee: Institut Francais du PetroleInventors: Eric Lecolier, Alain Rivereau
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Publication number: 20100010108Abstract: The present invention relates to a formulation of a high-performance foamed cement material, comprising: at least one hydraulic binder, microparticles whose grain size ranges between 0.1 and 30 ?m, whose proportion ranges between 15 % and 50 % by mass in relation to the mass of hydraulic binder, mineral particles whose grain size ranges between 1 and 500 ?m, whose proportion ranges between 10 % and 35 % by mass in relation to the mass of hydraulic binder, the proportion of particles being lower than the proportion of microparticles, a hydrosoluble polymer thinning agent whose proportion ranges between 0.1 % and 8 % by mass in relation to the mass of hydraulic binder, water whose proportion is at most 40 % by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 0.1 % and 10 % by mass in relation to the mass of hydraulic binder.Type: ApplicationFiled: September 9, 2009Publication date: January 14, 2010Inventors: Eric LECOLIER, Alain RIVEREAU
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Patent number: 7540915Abstract: The invention relates to a high-performance cement comprising an alumnic cement with an aluminium content of at least more than 30%; microsilica with a grain size of 0.1 - 20 ?m whereby the percentage thereof is 35 % less by weight in comparison with the weight of the cement; mineral particles with a grain size of 0.5 - 500 ?m whereby the percentage thereof is 35% less by weight in comparison with the weight of the cement, the percentage of said particles being less than that of the microsilica; a water-soluble polymer fluidifying agent whereby the percentage thereof is 0.2 to 3.0% in comparison with the weight of the cement; a retarding agent which is used to control the setting time of the slurry; an amount of water the maximum thereof corresponding to 40 % in relation to the cement.Type: GrantFiled: September 17, 2004Date of Patent: June 2, 2009Assignee: Institut Francais du PetroleInventors: Eric Lecolier, Alain Rivereau, Annie Audibert
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Patent number: 7435768Abstract: The present invention relates to a formulation of a foamed cement slurry comprising in combination: at least one hydraulic binder from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, sulfoaluminous cements and plasters, water whose proportion ranges between 20% and 60% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 1% and 20% by mass in relation to the mass of hydraulic binder, the foaming agent being a hydrosoluble polymer comprising hydrophobic links, or a mixture of such polymers.Type: GrantFiled: September 21, 2005Date of Patent: October 14, 2008Assignee: Institute Francais du PetroleInventors: Eric Lecolier, Annie Audibert, Alain Rivereau
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Publication number: 20060289163Abstract: The invention relates to a high-performance cement comprising an alumnic cement with an aluminium content of at least more than 30%; microsilica with a grain size of 0.1-20 ?m whereby the percentage thereof is 35% less by weight in comparison with the weight of the cement; mineral particles with a grain size of 0.5-500 ?m whereby the percentage thereof is 35% less by weight in comparison with the weight of the cement, the percentage of said particles being less than that of the microsilica; a water-soluble polymer fluidifying agent whereby the percentage thereof is 0.2 3.0% in comparison with the weight of the cement; a retarding agent which is used to control the setting time of the slurry; an amount of water the maximum thereof corresponding to 40% in relation to the cement.Type: ApplicationFiled: September 17, 2004Publication date: December 28, 2006Inventors: Eric Lecolier, Alain Rivereau, Annie Audibert
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Publication number: 20060217463Abstract: The present invention relates to a formulation of a foamed cement slurry comprising in combination: at least one hydraulic binder from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, sulfoaluminous cements and plasters, water whose proportion ranges between 20% and 60% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 1% and 20% by mass in relation to the mass of hydraulic binder, the foaming agent being a hydrosoluble polymer comprising hydrophobic links, or a mixture of such polymers.Type: ApplicationFiled: September 21, 2005Publication date: September 28, 2006Inventors: Eric Lecolier, Annie Audibert, Alain Rivereau
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Publication number: 20060075932Abstract: The present invention relates to a formulation of a high-performance foamed cement material, comprising: at least one hydraulic binder, microparticles whose grain size ranges between 0.1 and 30 ?m, whose proportion ranges between 15% and 50% by mass in relation to the mass of hydraulic binder, mineral particles whose grain size ranges between 1 and 500 ?m, whose proportion ranges between 10% and 35% by mass in relation to the mass of hydraulic binder, the proportion of particles being lower than the proportion of microparticles, a hydrosoluble polymer thinning agent whose proportion ranges between 0.1% and 8% by mass in relation to the mass of hydraulic binder, water whose proportion is at most 40% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 0.1% and 10% by mass in relation to the mass of hydraulic binder.Type: ApplicationFiled: September 28, 2005Publication date: April 13, 2006Inventors: Eric Lecolier, Alain Rivereau
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Patent number: 6776237Abstract: Lightweight cement compositions and methods of cementing a subterranean zone penetrated by a well bore utilizing the compositions are provided. A lightweight cement composition of the invention is basically comprised of a coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water.Type: GrantFiled: February 21, 2003Date of Patent: August 17, 2004Assignee: Halliburton Energy Services, Inc.Inventors: Bach Dao, Krishna M. Ravi, Jan Pieter Vijn, Christine Noik, Alain Rivereau
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Patent number: 6710107Abstract: The present invention relates to a cement slurry set in a wellbore. The slurry comprises cement, at least one mineral filler, water and a determined amount of at least one hydrophobically modified acrylamide or acrylate derivative. The present invention also relates to an additive specific to a cement slurry and acting as a filtrate reducer and as a rheological control agent, the additive comprising mainly a hydrophobically modified acrylamide or acrylate derivative.Type: GrantFiled: February 9, 2001Date of Patent: March 23, 2004Assignee: Institut Francais du PetroleInventors: Annie Audibert, Christine Noïk, Alain Rivereau
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Patent number: 6656263Abstract: A lightened cement slurry for cementation of a well includes cement, at least one mineral filler, water, and resin particles obtained by polymerization from vinyl aromatic, alkyl acrylate or acrylic monomers, wherein the polymerization includes crosslinking.Type: GrantFiled: October 5, 2001Date of Patent: December 2, 2003Assignee: Institute Francais du PetroleInventors: Annie Audibert, Christine Noïk, Alain Rivereau
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Publication number: 20030150615Abstract: Lightweight cement compositions and methods of cementing a subterranean zone penetrated by a well bore utilizing the compositions are provided. A lightweight cement composition of the invention is basically comprised of a coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water.Type: ApplicationFiled: February 21, 2003Publication date: August 14, 2003Inventors: Bach Dao, Krishna M. Ravi, Jan Pieter Vijn, Christine Noik, Alain Rivereau
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Patent number: 6562122Abstract: Lightweight cement compositions and methods of cementing a subterranean zone penetrated by a well bore utilizing the compositions are provided. A lightweight cement composition of the invention is basically comprised of a coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water.Type: GrantFiled: February 28, 2002Date of Patent: May 13, 2003Assignee: Halliburton Energy Services, Inc.Inventors: Bach Dao, Krishna M. Ravi, Jan Pieter Vijn, Christine Noik, Alain Rivereau
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Publication number: 20030000423Abstract: Lightweight cement compositions and methods of cementing a subterranean zone penetrated by a well bore utilizing the compositions are provided. A lightweight cement composition of the invention is basically comprised of a coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water.Type: ApplicationFiled: February 28, 2002Publication date: January 2, 2003Inventors: Jan Pieter Vijn, Bach Dao, Krishna M. Ravi, Christine Noik, Alain Rivereau
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Publication number: 20020062764Abstract: The present invention relates to the cementation of a well, notably an oil well, by means of a low-density grout.Type: ApplicationFiled: October 5, 2001Publication date: May 30, 2002Inventors: Annie Audibert, Christine Noik, Alain Rivereau
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Patent number: 6332920Abstract: The invention concerns the cementation of a well. A slag is used which comprises a hydraulic binder, a microsilica, a mineral addition, a superplasticizing agent and water, under defined granulometry and percentage conditions. The solublefigure relates to three compositions according to the invention but which differ by the origin of the microsilica. The invention applies notably to the cementation of an oil well.Type: GrantFiled: August 9, 1999Date of Patent: December 25, 2001Assignees: Bouygues, Institut Francais du PetroleInventors: Christine Noik, Alain Rivereau, Christian Vernet
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Publication number: 20010020057Abstract: The present invention relates to a cement slurry set in a wellbore. The slurry comprises cement, at least one mineral filler, water and a determined amount of at least one hydrophobically modified acrylamide or acrylate derivative.Type: ApplicationFiled: February 9, 2001Publication date: September 6, 2001Inventors: Annie Audibert, Christine Noik, Alain Rivereau
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Patent number: 6065539Abstract: A method of cementing a casing in a well drilled in the ground comprises injecting a liquid material comprising phenol-formol resin from the surface, wherein the resin is modified by means of a determined amount of furfuryl alcohol, and an amount of mineral filler unreactive towards the resin is added. The invention further relates to a thermosetting cementing material comprising phenol-formol resin. The resin is modified by means of an amount of furfuryl alcohol and comprises at least a proportion of an unreactive granular filler.Type: GrantFiled: May 28, 1998Date of Patent: May 23, 2000Assignee: Institute Francois du PetroleInventors: Christine Noik, Alain Rivereau
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Patent number: 5301753Abstract: In the cementing of oil wells, gas wells, or geothermal wells, wherein, under appropriate conditions, a suitable drilling fluid is injected, then optionally a slug fluid and finally a composition comprising water, a cement, at least one viscosity-enhancing additive, optionally at least one retarding agent and optionally at least one silica characterized in that the viscosity-enhancing agent is a scleroglucan solution. It applies particularly to the high temperature cementing of wells.Type: GrantFiled: July 31, 1992Date of Patent: April 12, 1994Assignee: Institut Du PetroleInventors: Ulysse Cartalos, Jacqueline Lecourtier, Alain Rivereau
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Patent number: 4522878Abstract: A material with high mechanical strength and a density close to 1 is obtained by:(a) dispersing on weight basis 10-15% of a melamine-formol resin, 10-50% of hollow microspheres, and optionally up to 60% of light aggregates, in water;(b) mixing the resultant dispersion in the presence of a cross-linking catalyst, e.g., ammonium chloride, for the melamine-formol resin, until a fluid paste is obtained; and(c) allowing said fluid paste to harden into the desired material.Type: GrantFiled: March 28, 1984Date of Patent: June 11, 1985Assignee: Institut Francais du PetroleInventors: Madeleine Martin, Jean Lesage, Gerard Courbin, Alain Rivereau