MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202537086820 A) filed by Snf Group, Andrezieux-Boutheon, France, on Sept. 12, for 'method for injecting an aqueous polymer solution into an underground formation.'
Inventor(s) include Favero, Cedrick.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a method for injecting an aqueous solution of a 2- acrylamido-2-methylpropanesulfonate homopolymer P and/or its salts having an average molecular weight greater than 1 million daltons, said method comprising the following successive steps: - in a location A: * preparation in a mobile unit U1 of sodium 2-acrylamido-2-methylpropanesulfonate in crystalline form (AMPS.S), * collection of an AMPS. OS sodium 2-acrylamido-2-methylpropanesulfonate aqueous solution S1, coming from the purge of the preparation of the AMPS.s in the mobile unit U1, - in a location A': * preparation in a mobile unit U3 of a homopolymer P by gel polymerisation of an AMPS.S aqueous solution S3, * dissolution in a mobile unit U4 of the polymer P in a saline solution SSI to obtain a polymer P solution SM, * transfer of the solution SM from the location A' to a location B, - in the location B: * dilution in a mobile unit U5 of the solution SM by a saline solution SS2 to obtain a solution SF, * injection of the solution SF in the underground formation for the assisted extraction of hydrocarbons or hydraulic fracturing."
The patent application was internationally filed on Mar. 13, 2024, under International application No.PCT/EP2024/056692.
Disclaimer: Curated by HT Syndication.
