Patents by Inventor Isabel Natalia VEGA

Isabel Natalia VEGA 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).

  • Hydrogels derived from acrylamide for controlling circulation losses and methods of fabrication thereof
    Patent number: 11787909
    Abstract: Acrylamide-derived hydrogels and methods of fabrication thereof from an acrylic monomer, a crosslinking agent comprising an organosilicon compound, a polymerization initiator, a solvent and a polymerization accelerator, as well as their use in controlling circulation losses. The obtained hydrogels interact with the walls of the reservoir and exhibits an increase in viscosity, either at delayed times or in response to a given stimulus, such as changes in temperature, pressure, pH, salinity, using a simple and easily scalable methodology.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 17, 2023
    Assignees: YPF TECNOLOGIA S.A., UNIVERSIDAD DE BUENOS AIRES, CONSEJO NACIONAL DE INVESTIGACIONES CIENTIFICAS Y TECNICAS (CONICET).
    Inventors: Joana Elisa Tasque, Pablo Alejandro Raffo, Isabel Natalia Vega, Norma Beatriz D'Accorso, Darío Alberto Contrera
  • Nanotracer for oil recovery comprising an occluded polynucleotide and method of preparation thereof
    Patent number: 11193368
    Abstract: Tracers for oil recovery, particularly fluorescent nanotracers comprising polynucleotides such as DNA strands. The tracer comprises a core-shell nanoparticle tailored according to the operation to be traced. It contains a fluorescent core comprising a target polynucleotide 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 by encapsulation of a polynucleotide.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: December 7, 2021
    Assignee: YPF TECNOLOGIA S.A.
    Inventors: María Laura Vera, Juan Ignacio Quelas, Maria Pilar Cadierno, Walter Alberto Vargas, María Leticia Legarto, Isabel Natalia Vega, Juan Martín Giussi
  • NANOTRACER FOR OIL RECOVERY COMPRISING AN OCCLUDED POLYNUCLEOTIDE AND METHOD OF PREPARATION THEREOF
    Publication number: 20210054734
    Abstract: Tracers for oil recovery, particularly fluorescent nanotracers comprising polynucleotides such as DNA strands. The tracer comprises a core-shell nanoparticle tailored according to the operation to be traced. It contains a fluorescent core comprising a target polynucleotide 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 by encapsulation of a polynucleotide.
    Type: Application
    Filed: October 28, 2020
    Publication date: February 25, 2021
    Inventors: María Laura VERA, Juan Ignacio QUELAS, Maria Pilar CADIERNO, Walter Alberto VARGAS, María Leticia LEGARTO, Isabel Natalia VEGA, Juan Martín GIUSSI
  • HYDROGELS DERIVED FROM ACRYLAMIDE FOR CONTROLLING CIRCULATION LOSSES AND METHODS OF FABRICATION THEREOF
    Publication number: 20200207927
    Abstract: Acrylamide-derived hydrogels and methods of fabrication thereof from an acrylic monomer, a crosslinking agent comprising an organosilicon compound, a polymerization initiator, a solvent and a polymerization accelerator, as well as their use in controlling circulation losses. The obtained hydrogels interact with the walls of the reservoir and exhibits an increase in viscosity, either at delayed times or in response to a given stimulus, such as changes in temperature, pressure, pH, salinity, using a simple and easily scalable methodology.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Inventors: Joana Elisa TASQUE, Pablo Alejandro RAFFO, Isabel Natalia VEGA, Norma Beatriz D'ACCORSO, Darío Alberto CONTRERA
  • WATER SHUT-OFF SYSTEM FOR PRODUCTION AND/OR INJECTION WELLS
    Publication number: 20130317135
    Abstract: Water Shut-off (WSO) system comprising organic products with relatively low viscosity, which are pumped to into a well in liquid state, and after a certain period of time, reach the desired consistence that may vary from a rigid gel, to produce a complete water flow blockage, up to deformable gels, which produce only a partial blockage effect, reducing significantly the water passage and still allowing the oil passage.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Inventor: Isabel Natalia VEGA