Methods and compositions for treating a subterranean formation with salt-tolerant cement slurries

US9796905B2 · kind B2 · utility

Assignee

• Halliburton Energy Services, Inc. · US

Inventors

• Krishna M. Ravi · Kingwood, US
• Rahul Chandrakant Patil · Pune, IN
• Sandip Prabhakar Patil · Pune, IN
• Sohini Bose · Pune, IN
• Abhimanyu Pramod Deshpande · Pune, IN

Key dates

• Filing date: Sep 20, 2013
• Grant date: Oct 24, 2017
• Expiry date: May 8, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Methods and compositions for treating a subterranean formation with salt-tolerant cement slurries including treating a salt-containing subterranean formation having sodium salts, potassium salts, magnesium salts, calcium salts, or any combination thereof comprising: providing a salt-tolerant cement slurry comprising: a base fluid, a cementitious material, a pozzolanic material, a salt-tolerant fluid loss additive, a salt additive, and optionally, an elastomer, a weight additive, a fluid loss intensifier, a strengthening agent, a dispersant, or any combination thereof; introducing the salt-tolerant cement slurry into the subterranean formation; and allowing the salt-tolerant cement slurry to set.