Process for the enhanced recovery of oil by injection of a polymer solution

Process for enhanced oil recovery employing an aqueous solution comprising at least one linear or structured water-soluble copolymer obtained by polymerization: of at least 10 mol % of 2-acrylamido-2-methylpropanesulfonic acid monomer in the free acid and/or salified form, of at least 10 mol % of at...

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Hauptverfasser: Favero Cèdrick, Darras Sylvain, Giovannetti Bruno
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creator Favero Cèdrick
Darras Sylvain
Giovannetti Bruno
description Process for enhanced oil recovery employing an aqueous solution comprising at least one linear or structured water-soluble copolymer obtained by polymerization: of at least 10 mol % of 2-acrylamido-2-methylpropanesulfonic acid monomer in the free acid and/or salified form, of at least 10 mol % of at least one comonomer chosen from the group consisting of acrylamide, N-vinylpyrrolidone (NVP) and acrylamide-derived monomers of formula (I): in which: R=H or CH3 or CH2COOR′, where R′ is an alkyl comprising at most 3 carbon atoms, A is an N heterocycle comprising, in its ring, from 4 to 6 carbon atoms and optionally an ether functional group or a ketone functional group.
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subjects ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MINING
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Process for the enhanced recovery of oil by injection of a polymer solution
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