Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

US11434417B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Valerie Gisele Helene Lafitte · Sugar Land, US
• Mohan Kanaka Raju Panga · Sugar Land, US
• Richard Berry · Notre-Dame-de-l'Île-Perrot, CA

Key dates

• Filing date: May 28, 2020
• Grant date: Sep 6, 2022
• Expiry date: May 28, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/30
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A fluid for treating a subterranean formation includes a solvent, a rheology modifier, and a composition that includes a mixture of cellulose fibers and cellulose nanoparticles. The cellulose nanoparticles have a positive zeta potential in a range of about +100 mV to about +10 mV, and a length in a range of from about 50 nm to about 500 nm, and the cellulose fibers have a length from about 50 microns to about 500 microns.