Synergist for water-based drilling fluid and preparation method therefor, water-based drilling fluid and application thereof

US11286411B2 · kind B2 · utility

Assignee

• Beijing Shida Bocheng Technology Co., Ltd · CN

Inventors

• Xiaohu Quan · Beijing, CN
• Haiping Feng · Beijing, CN
• Yihu Wang · Beijing, CN
• Jianmin Chen · Boulder, US
• Yu Cao · Nanjing, CN
• Weizhi You · Beijing, CN
• Junling ZHAO · Beijing, CN
• Jing Yang · Shanghai, CN
• Ang Li · Beijing, CN
• Wei Quan · Beijing, CN

Key dates

• Filing date: Sep 29, 2020
• Grant date: Mar 29, 2022
• Expiry date: Sep 29, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/34
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A synergist for a water-base drilling fluid and a preparation method therefor, a water-base drilling fluid and an application thereof, and belongs to the field of drilling fluid technologies. The synergist is prepared from raw materials comprising the following parts by weight: 15˜25 parts of sodium styrene sulfonate, 8˜15 parts of allyl trimethyl ammonium chloride, 2˜8 parts of didodecyldimethylammonium bromide, 1˜5 parts of n-octyl triethoxysilane, 1˜5 parts of propyltriethoxysilane, 1˜5 parts of disodium lauryl sulfosuccinate, 10˜20 parts of nano silica, 8˜15 parts of paraffin, and the like.