Patents by Inventor Alejandra CALVO

Alejandra CALVO 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).

  • Nanotracer for oil recovery and method of preparation thereof
    Patent number: 10995610
    Abstract: Tracers for oil recovery, particularly fluorescent nanotracers conservative in aqueous phases. The tracer comprises a core-shell nanoparticle tailored according to the operation to be traced. It contains a fluorescent core that allows the detection thereof in the field and a functionalized polymeric shell that provides increased stability in high salinity aqueous phases. A method for preparing said nanotracer. Given the nanotracer versatility, it can be used both for tracing fracking steps as well as meshes of secondary and tertiary recovery.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 4, 2021
    Assignees: YPF Technologia S.A., Consejo Nacional De Investigaciones Científicas Y Técnicas (Conicet)
    Inventors: Alejandra Calvo, María Laura Vera, María Laura Dell'Archiprete, Melina Vanesa Cozzarin, Juan Martín Giussi, Mónica Gonzalez, Félix Gregorio Requejo, Omar Azzaroni
  • Method for the estimation of kerogen maturity by X-ray photoelectron spectroscopy
    Patent number: 10527564
    Abstract: Method to estimate the kerogen maturity of a rock containing organic material by X-ray photoelectron spectroscopy (XPS). Significant changes in the XPS spectrum due to changes in C hybridization, particularly sp2 hybridization, allow to quantify kerogen maturity by comparison with an already known sample.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 7, 2020
    Assignee: YPF TECNOLOGIA S.A.
    Inventors: Alejandra Calvo, Antonela Canneva, Ivan Santiago Giordana, Ines Lidia Labayen, Georgina Erra
  • NANOTRACER FOR OIL RECOVERY AND METHOD OF PREPARATION THEREOF
    Publication number: 20190330976
    Abstract: Tracers for oil recovery, particularly fluorescent nanotracers conservative in aqueous phases. The tracer comprises a core-shell nanoparticle tailored according to the operation to be traced. It contains a fluorescent core that allows the detection thereof in the field and a functionalized polymeric shell that provides increased stability in high salinity aqueous phases. A method for preparing said nanotracer. Given the nanotracer versatility, it can be used both for tracing fracking steps as well as meshes of secondary and tertiary recovery.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 31, 2019
    Inventors: Alejandra CALVO, María Laura VERA, María Laura DELL'ARCHIPRETE, Melina Vanesa COZZARIN, Juan Martín GIUSSI, Mónica GONZALEZ, Félix Gregorio REQUEJO, Omar AZZARONI
  • METHOD FOR THE ESTIMATION OF KEROGEN MATURITY BY X-RAY PHOTOELECTRON SPECTROSCOPY
    Publication number: 20180284041
    Abstract: Method to estimate the kerogen maturity of a rock containing organic material by X-ray photoelectron spectroscopy (XPS). Significant changes in the XPS spectrum due to changes in C hybridization, particularly sp2 hybridization, allow to quantify kerogen maturity by comparison with an already known sample.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 4, 2018
    Inventors: Alejandra CALVO, Antonela CANNEVA, Ivan Santiago GIORDANA, Ines Lidia LABAYEN, Georgina ERRA