Method for inhibiting the permeation of water in an extraction well of a hydrocarbon fluid from an underground reservoir

• Main Authors: Morbidelli, Massimo Silvio, Del Gaudio, Lucilla, Moscatelli, Davide, Lorefice, Roberto
• Format: Patent
• Language: English
• Published: 02.11.2017
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; 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

The present invention concerns a method for inhibiting the permeation of water in an extraction well of a hydrocarbon fluid from an underground reservoir which comprises: a) injecting into said reservoir, at least one treatment fluid comprising at least one emulsion or one dispersion in an organic solvent of at least one copolymer from: - a first monomer selected from an acrylic monomer or methacrylic monomer, and - a second monomer comprising at least one ethylene unsaturation and at least one polyoxyethylene chain. The present invention also concerns emulsions and dispersions of copolymers usable in the above-mentioned method.