POLYMER, THICKENER AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2024 - IPC C08F220/06 C08F220/18 C08F220/30 C08F220/56 C09K8/68 

FIELD: chemistry.

SUBSTANCE: present invention relates to a polymer, a thickener containing said polymer and a method of producing a thickener used in oilfield chemistry. Polymer contains a structural link of formula (1) a structural link of formula (2) a structural link of formula (3) and a structural link of formula (4) where each of R₁, R₂, R₃, R₄, R₅, R₆, R₇, R₈, R₉, R₁₀, R₁₁, R₁₂, R₁₃, R₁₄ and R₁₅ independently represents hydrogen or a linear or branched C1-C10 alkyl group; X is a linear or branched C1-C10 alkylene group and M is hydrogen or an alkali metal.

EFFECT: according to the present invention, the thickener containing the polymer has acid resistance and temperature resistance, as well as instant solubility, which enables to integrate the thickener during a complete hydraulic fracturing or acid fracturing process and solves the problem of poor compatibility between different fluids for hydraulic fracturing, facilitates the preparation of the fluid medium, due to which the thickener can be used to convert and increase production of deep and superdeep oil and gas formations of deposits.

17 cl, 1 dwg, 7 tbl, 15 ex