The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2023
Filed:
Dec. 20, 2022
Southwest Petroleum University, Chengdu, CN;
Yongming Li, Chengdu, CN;
Qiang Ren, Chengdu, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Abstract
An ultra-high temperature organic cross-linked fracturing fluid system consisting of the following components at mass percentages: 0.6 wt % of a supramolecular star-shaped polymer, 0.5-1.0 wt % of formaldehyde solution, 0.02-0.04 wt % of resorcinol, 0.05-0.2 wt % of an ammonium catalyst and the rest being water, wherein the supramolecular star-shaped polymer is a β-cyclodextrin-modified branched monomer F-β-CD that serves as a core and is grafted with acrylamide, acrylic acid, hydrophobic monomers and surface-active macromolecular monomers to form a supramolecular star-shaped polymer; the ammonium salt catalyst is one or more of ammonium chloride, ammonium bicarbonate, ammonium acetate, ammonium citrate, ammonium benzoate and ammonium oleate. The ultra-high temperature organic cross-linked fracturing fluid system uses a supramolecular star-shaped polymer as a thickener, an organic crosslinker as a crosslinker and an ammonium salt as a catalyst to form a fracturing fluid.