Ypf Tecnologia S.a.

Juan Martín Giussi

Isabel Natalia Vega

Walter Alberto Vargas

Gabriel Lombardo

Paula Cecilia Dos Santos Claro

Roque Carlos Dietrich

Juan Ignacio Quelas

Maria Pilar Cadierno

María Leticia Legarto

Frederico Irou Roschzttardtz

Juan Manuel Padró

Sofía Rivelli

Lila Arias

A friction reducer comprising a copolymer of acrylamide, an anionic monomer, a zwitterionic monomer or a cationic monomer, a physical ligand or a chemical ligand, wherein the acrylamide amounts to at least 50% (w/w) of the total monomer content. The friction reducer is useful in hydraulic fracturing operations and is obtained by controlled radical polymerization at a temperature between 30° C. and 70° C. using iodine as polymerization control agent.

Friction reducing copolymers and method of preparation thereof

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.

Nanotracer for oil recovery comprising an occluded polynucleotide and method of preparation thereof

Growing community of inventors

Prov. de Buenos Aires, Argentina

Juan Martín Giussi