Methods of using casing strings in subterranean cementing operations

US7451817B2 · kind B2 · utility

Assignee

• Halliburton Energy Services, Inc. · US

Inventors

• B. Raghava Reddy · Pearland, US
• Anthony M. Badalamenti · Katy, US
• Simon Turton · Kingwood, US
• Karl W. Blanchard · Cypress, US
• Ronald R. Faul · Katy, US
• Michael G. Crowder · Orlando, US
• Henry E. Rogers · Duncan, US
• James E. Griffith · Loco, US

Key dates

• Filing date: Sep 27, 2007
• Grant date: Nov 18, 2008
• Expiry date: Sep 27, 2027

Classification

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

Abstract

Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of a set retarder. An example of a method is a method of cementing in a subterranean formation. Other examples of methods are methods of cementing in a subterranean formation comprising a well bore.