Methods for increasing wellbore strength

US11008832B2 · kind B2 · utility

Assignee

• The Board of Regents of the University of Texas System · US

Inventors

• Eric van Oort · Bee Cave, US
• Besmir B. Hoxha · Houston, US
• Ali Karimi Vajargah · Austin, US
• Robert O. WILLIAMS, III · Austin, US
• Hugh Smyth · Austin, US
• Silvia Ferrati · Austin, US

Key dates

• Filing date: May 10, 2017
• Grant date: May 18, 2021
• Expiry date: May 10, 2037

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/2405
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed herein are compositions and methods for reducing fluid loss in a well bore. Also disclosed herein are methods for wellbore strengthening and increasing the integrity of the borehole of an oil or gas well. In particular, disclosed are methods for artificially increasing the temperature of a subsurface formation in the wellbore to increase the apparent wellbore strength.