MUMBAI, India, Oct. 11 -- Intellectual Property India has published a patent application (202537084681 A) filed by Snf Group, Andrezieux-Boutheon, France, on Sept. 6, for 'method for enhanced recovery of hydrocarbons using a polymer of a crystalline form of 2-acrylamido-2-methylpropanesulphonic acid sodium salt.'
Inventor(s) include Favero, Cedrick; Legras, Benoit; and Kieffer, Johann.
The application for the patent was published on Oct. 10, under issue no. 41/2025.
According to the abstract released by the Intellectual Property India: "Method for enhanced hydrocarbon recovery comprising the following steps: a) Preparing an injection fluid comprising at least one water-soluble polymer obtained from ATBS, with water or brine; the ATBS being, prior to polymerization, a crystalline form of ATBS sodium salt having an X-ray powder diffraction pattern comprising peaks at 11.7; 12.2; 13.2; 13.5; 15.6; 16.8; 17.8; 18.5; 19.1; 20.6; 21.4; 23.3; 25.1; 25.8; 26.9; 29.1; 29.5; 31.0; 33.0; 33.6; 34.4; 35.2; 35.9; 37.1; 38.4; 39.6; 41.1; 42.9; 45.1; 46.0; 47.2; 47.6 2-theta angles; b) Injecting the injection fluid into a subterranean formation; c) Sweeping the subterranean formation using the injected fluid; d) Recovering an aqueous hydrocarbon mixture."
The patent application was internationally filed on Mar. 13, 2024, under International application No.PCT/EP2024/056686.
Disclaimer: Curated by HT Syndication.
