Magnetorheological fluids and methods of using same

US10836949B2 · kind B2 · utility

Assignee

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

Inventors

• Eric van Oort · Bee Cave, US
• Kenneth M. Cowan · Sugar Land, US
• Sriramya Duddukuri Nair · Austin, US
• Raissa Ferron · Austin, US

Key dates

• Filing date: Jul 11, 2014
• Grant date: Nov 17, 2020
• Expiry date: Feb 28, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Described herein are methods of cementing at least a portion of a well comprising feeding a magnetorheological cementitious slurry to a well and applying a magnetic field to the magnetorheological cementitious slurry concurrent with at least a portion of said feeding step to cause a mechanical response in said magnetorheological cementitious slurry in the well. Also disclosed herein are methods of temporarily blocking at least a portion of a well comprising providing a magnetorheological fluid in a well, applying a magnetic field to cause a mechanical response in said magnetorheological fluid thereby blocking at least a portion of the well, and removing the magnetic field to unblock the portion of the well. Also disclosed herein is a magnetorheological cement.