Patents by Inventor Veronique Barlet-Gouedard
Veronique Barlet-Gouedard 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: 20120206144Abstract: The present invention provides methods, apparatuses and systems for more effectively and efficiently, directly and indirectly monitoring cement degradation related to carbon dioxide exposure by measuring one or more electrical properties related to resistivity of cement behind a casing in a well.Type: ApplicationFiled: October 8, 2010Publication date: August 16, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Veronique Barlet-Gouedard
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Patent number: 8091642Abstract: A cement composition resistant to carbon dioxide includes a hollow element for trapping carbonation products. The hollow element can be hollow spherical or quasi spherical particles including cenospheres, sodium-calcium-borosilicate glass microspheres, silica-alumina microspheres, or a combination thereof. Or the hollow element may be a spherical or quasi spherical void made in the set cement, for example by foaming the cement composition with a gas such as air, nitrogen or a combination thereof. The composition may be used to cement a subterranean well in which carbon dioxide is injected, stored or produced.Type: GrantFiled: September 25, 2006Date of Patent: January 10, 2012Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Simon James, Bruno Drochon, Bernard Piot, Caritey Jean-Philippe
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Patent number: 7846250Abstract: The invention provides geopolymeric compositions intended for use in carbon dioxide injection or production wells or storage reservoirs and preferably in a supercritical carbon dioxide conditions. The geopolymeric composition is formed from a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, a retarder and/or an accelerator and a carrier fluid wherein the oxide molar ratio M2O/SiO2 is greater than 0.20 with M an alkali metal.Type: GrantFiled: August 7, 2006Date of Patent: December 7, 2010Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Benedicte Zusatz-Ayache, Olivier Porcherie
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Patent number: 7794537Abstract: The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, while the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, lightweight or heavyweight fillers and a carrier fluid wherein the suspension of said geopolymeric composition is pumped in a well and allowed to set.Type: GrantFiled: August 7, 2006Date of Patent: September 14, 2010Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Benedicte Zusatz-Ayache, Olivier Porcherie
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Publication number: 20090126930Abstract: The invention provides a cement composition resistant to carbon dioxide including a hollow element for trapping carbonation products. The hollow element can be an additional component added to the cement composition, this component is made of hollow spherical or quasi spherical particles as cenospheres, sodium-calcium-borosilicate glass, silica-alumina microspheres, or a combination thereof. Or the hollow element is a spherical or quasi spherical void made in the set cement, for example by foaming the cement composition with a gas as air, nitrogen or a combination thereof. Use of such cement composition in carbon dioxide application is disclosed. Additionally, a method to cement a part of a borehole in presence with carbon dioxide is disclosed, a method to repair a part of a borehole in presence with carbon dioxide is disclosed using the above cement composition and a method to plug a part of a borehole in presence with carbon dioxide is disclosed.Type: ApplicationFiled: September 25, 2006Publication date: May 21, 2009Inventors: Veronique Barlet-Gouedard, Simon James, Bruno Drochon, Bernard Piot, Caritey Jean-Philippe
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Patent number: 7530408Abstract: A method of stabilizing an underground formation surrounding a borehole comprising placing a treatment fluid in the formation, the treatment fluid comprising cross-linkable polymer and a cross-linking agent, and allowing the treatment fluid to gel in-situ, characterized in that after placement of the treatment fluid in the formation, an activator fluid is pumped into the well to bring about cross linking of the polymer to form the gel.Type: GrantFiled: January 4, 2005Date of Patent: May 12, 2009Assignee: Schlumberger Technology CorporationInventors: Chrystel Cambus-Brunet, Véronique Barlet-Gouedard
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Patent number: 7459019Abstract: In a process to design high temperature cement sluries, the temperature stable phases (anorthite, wairakite) are selected; aluminum modifiers and silica oxides are added to the dry cement so that the elemental composition of the blend corresponds to the phases selected; the control of the particle size distribution and the relative amount of those minerals allow their addition at high concentration while leaving the slurry easily mixable and pumpable; and the kinetics of the targeted phases formation is then controlled by adjusting the crystallinity and the particles sizes of the different solids.Type: GrantFiled: February 14, 2003Date of Patent: December 2, 2008Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Chrystel Cambus, Samuel Danican, Erik Nelson, Bruno Goffe
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Patent number: 7449061Abstract: A method of designing a cement composition comprises determination of the temperature to which the composition will be exposed in situ; determination of a stable, thermodynamic equilibrium composition of a CaO—Al2O3—SiO2—H2O (CASH) mineral system in the [xonotlite/wollastonite]-grossulaire-anorthite or grossulaire-anorthite-quartz triangles of the Si—Ca—Al phase diagram with a possible contribution of iron and/or magnesium, analogous to the cement when set, at the determined temperature; determining proportions of cement and mineral oxides required to provide a mixture having the determined composition; and defining a series of particulate materials of predetermined particle sizes and densities, comprising cement and mineral oxides in the determined proportions.Type: GrantFiled: October 26, 2004Date of Patent: November 11, 2008Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Bruno Goffe
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Publication number: 20080028995Abstract: The invention provides geopolymeric compositions intended for use in carbon dioxide injection or production wells or storage reservoirs and preferably in a supercritical carbon dioxide conditions. The geopolymeric composition is formed from a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, a retarder and/or an accelerator and a carrier fluid wherein the oxide molar ratio M2O/SiO2 is greater than 0.20 with M an alkali metal.Type: ApplicationFiled: August 7, 2006Publication date: February 7, 2008Inventors: Veronique BARLET-GOUEDARD, Benedicte Zusatz-Ayache, Olivier Porcherie
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Publication number: 20080028994Abstract: The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, whilst the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, lightweight or heavyweight fillers and a carrier fluid wherein the suspension of said geopolymeric composition is pumped in a well and allowed to set.Type: ApplicationFiled: August 7, 2006Publication date: February 7, 2008Inventors: Veronique Barlet-Gouedard, Benedicte Zusatz-Ayache, Olivier Porcherie
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Publication number: 20070167331Abstract: A method of stabilising an underground formation surrounding a borehole comprising placing a treatment fluid in the formation, the treatment fluid comprising cross-linkable polymer and a cross-linking agent, and allowing the treatment fluid to gel in-situ, characterised in that after placement of the treatment fluid in the formation, an activator fluid is pumped into the well to bring about cross linking of the polymer to form the gel.Type: ApplicationFiled: January 4, 2005Publication date: July 19, 2007Inventors: Chrystel Cambus-Brunet, Veronique Barlet-Gouedard
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Publication number: 20070125271Abstract: A method of designing a cement composition comprises determination of the temperature to which the composition will be exposed in situ; determination of a stable, thermodynamic equilibrium composition of a CaO—Al2O3—SiO2—H2O (CASH) mineral system in the [xonotlite/wollastonite]-grossulaire-anorthite or grossulaire-anorthite-quartz triangles of the Si—Ca—Al phase diagram with a possible contribution of iron and/or magnesium, analogous to the cement when set, at the determined temperature; determining proportions of cement and mineral oxides required to provide a mixture having the determined composition; and defining a series of particulate materials of predetermined particle sizes and densities, comprising cement and mineral oxides in the determined proportions.Type: ApplicationFiled: October 26, 2004Publication date: June 7, 2007Inventors: Veronique Barlet-Gouedard, Bruno Goffe
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Publication number: 20050160945Abstract: In a process to design high temperature cement sluries, the temperature stable phases (anorthite, wairakite) are selected; aluminum modifiers and silica oxides are added to the dry cement so that the elemental composition of the blend corresponds to the phases selected; the control of the particle size distribution and the relative amount of those minerals allow their addition at high concentration while leaving the slurry easily mixable and pumpable; and the kinetics of the targeted phases formation is then controlled by adjusting the crystallinity and the particles sizes of the different solids.Type: ApplicationFiled: February 14, 2003Publication date: July 28, 2005Inventors: Veronique Barlet-Gouedard, Chrystel Cambus, Samuel Danican, Erik Nelson, Bruno Goffe
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Patent number: 6911078Abstract: The present invention concerns cementing compositions for an oil well or the like, based on a Portland cement, silica and alumina, wherein the mineralogical composition of the cement matrix is included in the Si—Ca—Al triangle in one of the margarite-haüyne-[epidote/pumpellyite], haüyne-prehnite-[epidote/pumpellyite] and haüyne-prehnite-pectolite composition triangles. More particularly, the cementing compositions of the invention are suitable for cementing wells subjected to high temperatures and to chemical attack by brines, and are more suitable when the brine—or a saline formulation close to that of the brine—is used as the mixing water.Type: GrantFiled: March 21, 2001Date of Patent: June 28, 2005Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Bruno Goffe
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Publication number: 20040211341Abstract: The present invention concerns cementing compositions for an oil well or the like, based on a Portland cement, silica and alumina, wherein the mineralogical composition of the cement matrix is included in the Si—Ca—Al triangle in one of the margarite-haüyne-[epidote/pumpellyite], haüyne-prehnite-[epidote/pumpellyite] and haüyne-prehnite-pectolite composition triangles. More particularly, the cementing compositions of the invention are suitable for cementing wells subjected to high temperatures and to chemical attack by brines, and are more suitable when the brine—or a saline formulation close to that of the brine—is used as the mixing water.Type: ApplicationFiled: February 6, 2003Publication date: October 28, 2004Inventors: Veronique Barlet-Gouedard, Bruno Goffe
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Patent number: 6656266Abstract: Cementing compositions which are particularly suitable for squeeze cementing operations, comprise an aqueous phase, and a micro-cement, the aqueous phase including an aqueous suspension comprising a vinyl acetate type polymer obtained by chemically cross-linking a polyvinyl compound, a nanolatex and an anionic surfactant with a cloud point of more than 80° C.Type: GrantFiled: September 20, 2001Date of Patent: December 2, 2003Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Pierre Maroy, Bruno Langlois, Roland Reeb
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Patent number: 6511537Abstract: Systems for retarding setting in an oilfield well cement slurry comprise a solution of a phosphonate selected from methylene phosphonic acid derivatives and a phosphate, in particular selected from the following salts or the corresponding acids: mono-phosphates (ortho-phosphates PO42; meta-phosphates PO3), acyclic poly-phosphates (pyrophosphates P2O74, tripolyphosphates P3O105) or cyclic poly-phosphates. The system preferably may also comprise a retarder booster and is more particularly applicable to cementing at low or medium temperatures.Type: GrantFiled: October 20, 2000Date of Patent: January 28, 2003Assignee: Schlumberger Technology CorporationInventors: Véronique Barlet-Gouedard, Fabien J. Brand, Pierre Maroy, Frederik Nilsson
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Patent number: 6312515Abstract: The invention concerns cementing compositions, particularly for squeeze cementing, comprising a liquid phase and a solid phase constituted by particulate materials which are insoluble in said liquid phase, in particular a microcement. The compositions of the invention comprise additives of a nature and composition such that variations in viscosity of the composition due to fluid loss are minimized. Preferably, the compositions comprise at least one “very fine” additive formed from particles which are smaller than the cement, with a ratio of the average grain sizes of the particles of said additive and those of the cement in the range 5 to 100, preferably about 10, the respective proportions of the solid particles corresponding to a packing volume fraction close to the maximum, and the porosity of the solid mixture being such that the mixture is in a state of hindered settling.Type: GrantFiled: June 12, 1996Date of Patent: November 6, 2001Assignee: Schlumberger Technology CorporationInventors: Veronique Barlet-Gouedard, Bernard Dargaud, Andre Garnier, Pierre Maroy
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Patent number: 5503672Abstract: The invention relates to the cementing of high temperature wells. The retarder consists of a methylene phosphonic acid derivative and of a boric acid or a borate at least as acid as borax in an aqueous solution, in particular, Na pentaborate, in a preferred ratio of 0.08 to 0.92 parts by weight. A long setting time and a very swift compressive strength development are obtained at the same time.Type: GrantFiled: March 8, 1994Date of Patent: April 2, 1996Assignee: Dowell, a division of Schlumberger Technology CorporationInventors: Veronique Barlet-Gouedard, Hugo Hendriks, Pierre Maroy