Patents by Inventor Sylvaine Le Roy-Delage

Sylvaine Le Roy-Delage 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).

  • Patent number: 10632497
    Abstract: A dried latex emulsion coating on a surface of a metal member is used as a thin bond layer on well tubular joints, on tubular strings in wells, and on other metal members. The bond layer promotes adhesion to cement members formed from hardening a cement slurry in contact with the bond layer. The bond layer can be used in bonded cement structures, on well tubular joints, on tubular strings in a well, on tubular strings cemented in a well, in methods of making the cement structures and the tubular strings, and in methods of placing and cementing a tubular string in a well.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 28, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Alice Chougnet-Sirapian, Sylvaine Le Roy-Delage
  • Patent number: 10457848
    Abstract: A self-adaptive cement formulation includes cement, water and thermoplastic block-polymer particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 29, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Sylvaine Le Roy-Delage, Laure Martin-Al-Khatib
  • Publication number: 20190151893
    Abstract: A dried latex emulsion coating on a surface of a metal member is used as a thin bond layer on well tubular joints, on tubular strings in wells, and on other metal members. The bond layer promotes adhesion to cement members formed from hardening a cement slurry in contact with the bond layer. The bond layer can be used in bonded cement structures, on well tubular joints, on tubular strings in a well, on tubular strings cemented in a well, in methods of making the cement structures and the tubular strings, and in methods of placing and cementing a tubular string in a well.
    Type: Application
    Filed: March 29, 2017
    Publication date: May 23, 2019
    Inventors: Alice CHOUGNET-SIRAPIAN, Sylvaine LE ROY-DELAGE
  • Publication number: 20170306214
    Abstract: A well cementing composition comprises water, an inorganic cement, a gas generating agent and a gas stabilizer. The gas generating agent may contain materials that release hydrogen gas, carbon dioxide gas or nitrogen gas or combinations thereof. The gas stabilizer comprises an aqueous mixture comprising polyglycols, oxyalkylates and methanol, or coco trimethyl ammonium chloride, or a mixture comprising ammonium fatty alcohol ether sulfate and ethylene glycol monobutyl ether, or combinations thereof. When used to cement a subterranean well, the compositions improve the compressive strength, increase the rate at which compressive strength develops, preserve cement homogeneity, or enhance cement expansion or a combination thereof.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 26, 2017
    Inventors: Arnaud Joseph Gino Bourlon, Olivier Porcherie, Sylvaine Le Roy-Delage
  • Publication number: 20170306212
    Abstract: A self-adaptive cement formulation includes cement, water and thermoplastic block-polymer particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 26, 2017
    Inventors: Sylvaine Le Roy-Delage, Laure Martin-Al-Khatib
  • Patent number: 9790418
    Abstract: 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: Grant
    Filed: November 6, 2014
    Date of Patent: October 17, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Simon Gareth James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 9738822
    Abstract: A well cementing composition comprises water, an inorganic cement, a gas generating agent and a gas stabilizer. The gas generating agent may contain materials that release hydrogen gas, carbon dioxide gas or nitrogen gas or combinations thereof. The gas stabilizer comprises an aqueous mixture comprising polyglycols, oxyalkylates and methanol, or coco trimethyl ammonium chloride, or a mixture comprising ammonium fatty alcohol ether sulfate and ethylene glycol monobutyl ether, or combinations thereof. When used to cement a subterranean well, the compositions improve the compressive strength, increase the rate at which compressive strength develops, preserve cement homogeneity, or enhance cement expansion or a combination thereof.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 22, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Arnaud Joseph Gino Bourlon, Olivier Porcherie, Sylvaine Le Roy-Delage
  • Patent number: 9683161
    Abstract: A self-adaptive cement formulation includes cement, water and thermoplastic block-polymer particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: June 20, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Sylvaine Le Roy-Delage, Laure Martin-Al-Khatib
  • Publication number: 20170166800
    Abstract: 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: Application
    Filed: December 15, 2016
    Publication date: June 15, 2017
    Inventors: Clara Carelli, Sylvaine Le Roy-Delage, Bernard Piot
  • Patent number: 9556702
    Abstract: 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: Grant
    Filed: December 18, 2012
    Date of Patent: January 31, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 9416615
    Abstract: A system for improving zonal isolation incorporates a tubular having an outer surface and a swellable coating that coats the outer surface. The swellable coating has an external surface, a composition provided in an annular space outside the tubular, or both. The swellable coating is made of a first swellable material that can swell when contacted by a first fluid on the external surface. The composition is made of a second swellable material that can swell when contacted with second fluid. The first swellable material, the second swellable material, or both, include an elastomer that is compounded with an aqueous inverse emulsion of particles of a polymer comprising a betaine group. The elastomer is able to swell when contacted by hydrocarbons and saline aqueous fluids.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: August 16, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
  • Patent number: 9382159
    Abstract: Compositions for well cementing comprise a pumpable slurry of cement, water and at least one additive that swells in contact with an underground fluid (hydrocarbon, water or brines or mixtures thereof). In case of failure of the cement matrix after setting, the additive swells when contacted by the underground fluid and restores zonal isolation. The swelling additive is an elastomer compounded with an aqueous inverse emulsion of particles of a polymer comprising a betaine group.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: July 5, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ines Khalfallah, Matteo Loizzo, Katia Dennis, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
  • Publication number: 20160068739
    Abstract: 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: Application
    Filed: November 16, 2015
    Publication date: March 10, 2016
    Inventors: Clara Carelli, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
  • Patent number: 9222011
    Abstract: A self-adaptive cement formulation includes cement, water, block copolymer and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: December 29, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Sylvaine Le Roy-Delage, Laure Martin
  • Patent number: 9187685
    Abstract: 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: Grant
    Filed: July 1, 2014
    Date of Patent: November 17, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Clara Carelli, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
  • Publication number: 20150090451
    Abstract: A well cementing composition comprises water, an inorganic cement, a gas generating agent and a gas stabilizer. The gas generating agent may contain materials that release hydrogen gas, carbon dioxide gas or nitrogen gas or combinations thereof. The gas stabilizer comprises an aqueous mixture comprising polyglycols, oxyalkylates and methanol, or coco trimethyl ammonium chloride, or a mixture comprising ammonium fatty alcohol ether sulfate and ethylene glycol monobutyl ether, or combinations thereof. When used to cement a subterranean well, the compositions improve the compressive strength, increase the rate at which compressive strength develops, preserve cement homogeneity, or enhance cement expansion or a combination thereof.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Arnaud Joseph Gino Bourlon, Olivier Porcherie, Sylvaine Le Roy-Delage
  • Publication number: 20150068428
    Abstract: 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: Application
    Filed: November 6, 2014
    Publication date: March 12, 2015
    Inventors: Simon Gareth James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 8967254
    Abstract: 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: Grant
    Filed: November 19, 2009
    Date of Patent: March 3, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 8936081
    Abstract: 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: Grant
    Filed: April 9, 2009
    Date of Patent: January 20, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Simon James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
  • Publication number: 20140332215
    Abstract: 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: Application
    Filed: December 18, 2012
    Publication date: November 13, 2014
    Inventors: Clara Carelli, Sylvaine Le Roy-Delage