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:
Nov. 11, 2025
Filed:
Feb. 12, 2025
Shineon Environments Technology Services Co., Ltd., Chengdu, CN;
Tao Zhang, Chengdu, CN;
Guanjun Wang, Chengdu, CN;
Fuyou Huang, Chengdu, CN;
Sheng Zhou, Chengdu, CN;
Xiongying He, Chengdu, CN;
Weisheng Zhao, Chengdu, CN;
Jing Luo, Chengdu, CN;
Shineon Environments Technology Services Co., Ltd., Chengdu, CN;
Abstract
Disclosed are a flocculant for treating fracturing flowback fluid and a preparation method therefor, which relate to oilfield sewage treatment. The method includes: in parts by weight, dissolving gelatinized starch in water, adding unsaturated polyethylene glycol, unsaturated short-chain carboxylic acid, hydroxyethyl methacrylate phosphate and an initiator under a nitrogen atmosphere for reaction for 3-8 h, and after the reaction is completed, separating and purifying to obtain a product. The flocculant for treating fracturing flowback fluid is prepared by a one-pot method, and the solvent is water, so that the preparation method is simple and has better environmental protection performance; meanwhile, the flocculant not only can reduce turbidity, color and suspended matters of the flowback fluid, but also can effectively reduce COD and total iron of the flowback fluid, and also can reduce the mineralization to a certain degree. The flocculant has good biodegradability and has less impact on the environment.