Patents by Inventor Elvire TOGNISSO

Elvire TOGNISSO 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).

  • Method for enhanced oil recovery by injecting an aqueous polymeric composition containing microgels
    Patent number: 11149186
    Abstract: The present invention relates to a method for enhanced oil recovery by flushing an underground formation, comprising the injection into the underground formation of an aqueous composition comprising microgels having at least one crosslinked polymer, characterized in that the polymer is crosslinked with at least one crosslinking agent capable of being degraded under the temperature conditions of the underground formation, and a content of crosslinking agent between 1 and 90 ppm per mole with respect to the total number of moles of monomer constituting the polymer.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 19, 2021
    Assignees: S.P.C.M. SA, POWELTEC
    Inventors: Cédrick Favero, Olivier Braun, Elvire Tognisso, Alain Zaitoun, Nazanin Salehi, Jérôme Bouillot
  • METHOD FOR ENHANCED OIL RECOVERY BY INJECTING AN AQUEOUS POLYMERIC COMPOSITION CONTAINING MICROGELS
    Publication number: 20200115618
    Abstract: The present invention relates to a method for enhanced oil recovery by flushing an underground formation, comprising the injection into the underground formation of an aqueous composition comprising microgels having at least one crosslinked polymer, characterized in that the polymer is crosslinked with at least one crosslinking agent capable of being degraded under the temperature conditions of the underground formation, and a content of crosslinking agent between 1 and 90 ppm per mole with respect to the total number of moles of monomer constituting the polymer.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 16, 2020
    Applicants: S.P.C.M. SA, POWELTEC
    Inventors: Cédrick FAVERO, Olivier BRAUN, Elvire TOGNISSO, Alain ZAITOUN, Nazanin SALEHI, Jérôme BOUILLOT