Modified silicon dioxide material of fluorocarbon active agent type super-amphiphobic cutting-carrying agent suitable for water-based drilling fluid and preparation method thereof

US10876034B1 · kind B1 · utility

Assignee

• China University of Petroleum—Beijing · CN

Inventors

• Guancheng Jiang · Beijing, CN
• Xiaoxiao Ni · Beijing, CN
• Yinbo He · Beijing, CN
• Lili Yang · Pasadena, US
• Tengfei Dong · Beijing, CN
• Kun Zhang · Hubei, CN
• Xuwu Luo · Karamay, CN
• Li Zhao · Beijing, CN
• Yang Bai · Beaverton, US
• Kaihe Lv · Qingdao, CN
• Xianbin Huang · Qingdao, CN
• Jingping Liu · Beijing, CN
• Chunyao Peng · Beijing, CN

Key dates

• Filing date: Jan 17, 2020
• Grant date: Dec 29, 2020
• Expiry date: Jan 17, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present disclosure relates to the technical field of oil and gas drilling, and particularly relates to a modified silicon dioxide material of a fluorocarbon active agent type super-amphiphobic cutting-carrying agent suitable for a water-based drilling fluid, and a preparation method thereof. The preparation method of the modified silicon dioxide material comprises the following steps: subjecting silicon dioxide and a silane coupling agent represented by Formula (1) to a first contact reaction in a mixed solvent containing alcohol and water; subjecting the product of the first contact reaction, the compound represented by Formula (2) and the compound represented by Formula (3) to a second contact reaction; subjecting the product of the second contact reaction and the compound represented by Formula (4) to a third contact reaction. The modified silicon dioxide material can be used as a cutting-carrying agent in a water-based drilling fluid and produce an excellent cutting-carrying effect.