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:
Mar. 02, 2023
Yangtze University, Hubei, CN;
Jingzhou Jiahua Technology Co., Ltd., Hubei, CN;
Mingbiao Xu, Jingzhou, CN;
Fuchang You, Jingzhou, CN;
Kai Jiao, Jingzhou, CN;
Shusheng Zhou, Jingzhou, CN;
Yangtze University, Jingzhou, CN;
Jingzhou Jiahua Technology Co., Ltd., Jingzhou, CN;
Abstract
Provided are a quaternary ammonium salt and a preparation method and use thereof as an inhibitor, and a water-based drilling fluid and use thereof. The quaternary ammonium salt has a structure shown in formula I, wherein, in the formula I, Ris selected from the group consisting of —H and —COOH; Ris selected from the group consisting of —H and —CH—COOH; Ris selected from the group consisting of —NH—CH—CH—CH—NH, —NH—CH—CH—NH, —NH—CH—CH—OH, —O—CH—CH—NH, —N—(CH—CH—OH), and —O—CH—CH—NH—CH—CH—OH; and n and m are independently 10 to 15.