Patents by Inventor Clara Carelli
Clara Carelli 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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Patent number: 9790418Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: GrantFiled: November 6, 2014Date of Patent: October 17, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Simon Gareth James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20170166800Abstract: Well cementing compositions include an aqueous fluid, portland cement and an air entrainment suppressing agent. The air entrainment suppressing agent includes a blend of a silicone and polypropylene glycol, or a silicone that is functionalized with ether groups. Methods for preparing well cementing compositions comprise adding the air entrainment suppressing agent to the aqueous fluid, and combining the mixing fluid to a solid blend comprising portland cement and hydrophobic particles in a continuous process.Type: ApplicationFiled: December 15, 2016Publication date: June 15, 2017Inventors: Clara Carelli, Sylvaine Le Roy-Delage, Bernard Piot
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Patent number: 9556702Abstract: A remedial method for repairing a damaged cement sheath, especially for use in wells in which fluids with a pH lower than 6 are injected, stored or extracted, comprises placing an acid swellable composition adjacent to the cement sheath. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the composition may be injected into or adjacent to the cement sheath so that the material swells when contacted by acid gases, including carbon dioxide and hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.Type: GrantFiled: December 18, 2012Date of Patent: January 31, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20160068739Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: ApplicationFiled: November 16, 2015Publication date: March 10, 2016Inventors: Clara Carelli, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
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Publication number: 20150355365Abstract: A tool for geological formation having a borehole includes a housing to be positioned within the borehole and a device carried by the housing and including at least one electrical conductor in a dielectric thermoset material surrounding the at least one electrical conductor. The dielectric thermoset material is formed as a cyanate ester and molecular sieve blended therewith. The molecular sieve in one example is formed from zeolite and in another example is formed as a 5A molecular sieve and in yet another example a 13X molecular sieve.Type: ApplicationFiled: December 17, 2013Publication date: December 10, 2015Inventors: Clara Carelli, Nathalie Lacroix, Mohamed El Hadachy
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Patent number: 9187685Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: GrantFiled: July 1, 2014Date of Patent: November 17, 2015Assignee: Schlumberger Technology CorporationInventors: Clara Carelli, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
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Publication number: 20150068428Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: ApplicationFiled: November 6, 2014Publication date: March 12, 2015Inventors: Simon Gareth James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
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Patent number: 8967254Abstract: A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.Type: GrantFiled: November 19, 2009Date of Patent: March 3, 2015Assignee: Schlumberger Technology CorporationInventors: Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20150041134Abstract: A cement slurry composition is described as having cement, water, and organic polymer particles. The composition also includes non-ionic surfactants, which may contain ethoxylate groups or contain both ethoxylate groups and propoxylate groups in the hydrophilic part. The non-ionic surfactant acts to disperse the hydrophobic polymeric particles in the slurry, thereby reducing mixing time. The cement slurry composition is prepared and then pumped into the subterranean well and placed in a zone of the subterranean well. Time is then allowed for the cement slurry composition to set and form a solid mass in the zone.Type: ApplicationFiled: September 11, 2014Publication date: February 12, 2015Inventors: Clara Carelli, Jesse C. Lee, Syed A. Ali, Isabelle Couillet, Claire Giraudeau
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Patent number: 8936081Abstract: Fluid compositions containing a silica-particle suspension with no intrinsic cementitious properties may be pumped into a wellbore. Upon making downhole contact with previously placed well cements from primary-cementing or previous remedial-cementing operations, the silica suspension reacts to form a gel that seals voids, cracks or fissures in the cement sheath. Portland cement is the preferred cement with which the silica-particle suspensions interact downhole.Type: GrantFiled: April 9, 2009Date of Patent: January 20, 2015Assignee: Schlumberger Technology CorporationInventors: Simon James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20140332215Abstract: A self-healing cement for use in wells in which acid gases are injected, stored or extracted, comprises an acid-swelling material. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the material swells when contacted by acid gases, including carbon dioxide and hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation. The acid swelling material may also be used without cement for remedial treatments to restore zonal isolation.Type: ApplicationFiled: December 18, 2012Publication date: November 13, 2014Inventors: Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20140318776Abstract: A remedial method for repairing a damaged cement sheath, especially for use in wells in which fluids with a pH lower than 6 are injected, stored or extracted, comprises placing an acid swellable composition adjacent to the cement sheath. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole- wall interface, the composition may be injected into or adjacent to the cement sheath so that the material swells when contacted by acid gases, including carbon dioxide and hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.Type: ApplicationFiled: December 18, 2012Publication date: October 30, 2014Inventors: Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20140311742Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: ApplicationFiled: July 1, 2014Publication date: October 23, 2014Inventors: Clara Carelli, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
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Publication number: 20140238676Abstract: A cement slurry composition is described as having cement, water, and organic polymeric particles. The composition also includes non-ionic surfactants, which may contain ethoxylate groups or contain both ethoxylate groups and propyxlate groups in the hydrophilic part. The non-ionic surfactant acts to disperse the hydrophobic polymeric particles in the slurry and to reduce or prevent foaming. The cement slurry composition is prepared and then pumped into the subterranean well and placed in a zone of the subterranean well. Time is then allowed for the cement slurry composition to set into a solid mass in the zone.Type: ApplicationFiled: February 26, 2013Publication date: August 28, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Clara Carelli, Jesse C. Lee, Syed A. Ali
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Patent number: 8434552Abstract: Compositions containing an alkali swelling polymer and a pH buffer with a pH between 3 and 7 may be used to treat a wellbore. The pH buffer prevents the swelling of the alkali swellable polymer. The compositions may be placed in the wellbore, whereupon they contact another material with pH increasing properties. The pH of the compositions increases, causing the compositions to swell and form a seal. The alkali swelling polymer may be an alkali swelling latex.Type: GrantFiled: December 11, 2008Date of Patent: May 7, 2013Assignee: Schlumberger Technology CorporationInventors: Bruno Drochon, Simon James, Sylvaine Le Roy-Delage, Clara Carelli
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Publication number: 20120012318Abstract: Fluid compositions comprising an aqueous epoxy resin, a hardener and particles comprising silica, aluminosilicate or both are useful for establishing hydraulic isolation in cemented subterranean wells. Upon entering voids and cracks in or adjacent to the cement sheath, and contacting the set-cement surfaces, the composition reacts and forms a seal that prevents further leakage.Type: ApplicationFiled: June 27, 2011Publication date: January 19, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20100307750Abstract: The invention discloses a method of treating a wellbore, comprising the step mixing an alkali swellable polymer and a first material, wherein said first material does not cause said alkali swellable polymer to swell significantly; and placing said alkali swellable polymer and said first material in the wellbore.Type: ApplicationFiled: December 11, 2008Publication date: December 9, 2010Inventors: Bruno Drochon, Simon James, Sylvaine Le Roy-Delage, Clara Carelli
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Publication number: 20100270016Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: ApplicationFiled: April 27, 2009Publication date: October 28, 2010Inventors: Clara Carelli, Loic Regnault De La Mothe, Sylvaine Le Roy-Delage
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Publication number: 20100258310Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.Type: ApplicationFiled: April 9, 2009Publication date: October 14, 2010Inventors: Simon JAMES, Michel MICHAUX, Clara Carelli, Sylvaine Le Roy-Delage
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Publication number: 20100137473Abstract: A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.Type: ApplicationFiled: November 19, 2009Publication date: June 3, 2010Inventors: Clara Carelli, Sylvaine Le Roy-Delage