Abstract: The invention relates to a method for determining the intrinsic viscosity [?] of an aqueous polymer solution at a temperature T, wherein the aqueous polymer solution comprises at least one acrylamide-based polymer in an aqueous solvent, the aqueous solvent having a salinity of from 6 to 250 g/L, the method comprising the steps of: —providing a single universal relation R1 between (i), the product of polymer concentration and intrinsic viscosity C·[?], and (ii) specific viscosity at zero shear rate ?sp; —performing a measurement of the dynamic viscosity of the aqueous polymer solution at one polymer concentration C1, at temperature T and at various shear rates; —determining from said measurement the zero-shear viscosity ?0 of the aqueous polymer solution at polymer concentration C1 and at temperature T; —calculating the specific viscosity at zero shear rate of the aqueous polymer solution at polymer concentration C and at temperature T as ?sp=(?0??s)/?s, where ?s is the zero-shear viscosity of the aqueous solv

Abstract: The invention relates to a method for determining the intrinsic viscosity [?] of an aqueous polymer solution at a temperature T, wherein the aqueous polymer solution comprises at least one acrylamide-based polymer in an aqueous solvent, the aqueous solvent having a salinity of from 6 to 250 g/L, the method comprising the steps of: —providing a single universal relation R1 between (i), the product of polymer concentration and intrinsic viscosity C·[?], and (ii) specific viscosity at zero shear rate ?sp; —performing a measurement of the dynamic viscosity of the aqueous polymer solution at one polymer concentration C1, at temperature T and at various shear rates; —determining from said measurement the zero-shear viscosity ?0 of the aqueous polymer solution at polymer concentration C1 and at temperature T; —calculating the specific viscosity at zero shear rate of the aqueous polymer solution at polymer concentration C and at temperature T as ?sp=(?0??s)/?s, where ?s is the zero-shear viscosity of the aqueous solv

Abstract: The invention relates to the use of a non-ionic surfactant and an anionic surfactant for enhancing the injectivity of an injection well, wherein the non-ionic surfactant and the anionic surfactant are added to produced water, to form a reinjection stream which is injected into a subterranean formation by the injection well.

Abstract: The invention relates to the use of a non-ionic surfactant and an anionic surfactant for enhancing the injectivity of an injection well, wherein the non-ionic surfactant and the anionic surfactant are added to produced water, to form a reinjection stream which is injected into a subterranean formation by the injection well.

Abstract: The invention relates to a surface treatment method for treating the inner walls of a microchannel made from a polymeric material that is at least partially photocured or thermoset. Said treatment is carried out via irradiation in the air at a wavelength of less than or equal to 300 nm. The invention also relates to a method for manufacturing a microfluidic device including such a surface treatment step.

Abstract: The invention relates to a surface treatment method for treating the inner walls of a microchannel made from a polymeric material that is at least partially photocured or thermoset. Said treatment is carried out via irradiation in the air at a wavelength of less than or equal to 300 nm. The invention also relates to a method for manufacturing a microfluidic device including such a surface treatment step.