Patents Examined by John J Figureoa
  • Aqueous fracturing fluid composition and fracturing process using the composition
    Patent number: 9249352
    Abstract: Fracturing fluid comprising, in solution in water, a proppant and an associative amphoteric polymer, the said polymer having a molecular weight of at least 1 000 000 g/mol and comprising: 0.01 to 10 mol % of at least one cationic monomer derived from acrylamide, from 0.09 to 89.99 mol % of at least one anionic monomer, and from 10 to 99 mol % of at least one nonionic water-soluble monomer. Fracturing process using the fluid.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 2, 2016
    Assignee: S.P.C.M. SA
    Inventors: Cédrick Favero, Nicolas Gaillard