Journal of Petroleum Technology August 2012 : Page 13

Secure Zonal Isolation with Flexible Cements for Steam Injection Wells. THERMALLY RESPONSIVE CEMENT ThermaSTONE *Mark of Schlumberger. Measurable Impact is a mark of Schlumberger. © 2012 Schlumberger. 12-CE-0020 In a recent SAGD project in Alberta, Canada, ThermaSTONE* thermally responsive cement was applied to 25% of the well pairs. The system demonstrated better thermal properties versus standard thermal cement—including a 62% Young’s modulus reduction and an excellent bond log. Steam injection demands flexible, reliable cement systems for the harsh mechanical and thermal stresses put on the cement sheath. Our choice of cement systems delivers engineered mechanical and thermal properties specific to every well. The ThermaSTONE cement properties, coupled with an equally important rigorous and engineered placement technique, provide the ideal solution for optimizing recovery in heavy oil. Learn more at www.slb.com/heavyoil Global Expertise | Innovative Technology | Measurable Impact