Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements

US8567531B2 · kind B2 · utility

Assignee

• SMITH INTERNATIONAL, INC. · US

Inventors

• J. Daniel Belnap · Pleasant Grove, US
• Georgiy Voronin · Orem, US
• Feng Yu · Lindon, US
• Peter Thomas Cariveau · Spring, US
• Youhe Zhang · Spring, US
• Yuelin Shen · Houston, US
• Guodong Zhan · Spring, US

Key dates

• Filing date: May 20, 2010
• Grant date: Oct 29, 2013
• Expiry date: Mar 14, 2031

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B10/5735
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present disclosure relates to cutting elements incorporating polycrystalline diamond bodies used for subterranean drilling applications, and more particularly, to polycrystalline diamond bodies having a high diamond content which are configured to provide improved properties of thermal stability and wear resistance, while maintaining a desired degree of impact resistance, when compared to prior polycrystalline diamond bodies. In various embodiments disclosed herein, a cutting element with high diamond content includes a modified PCD structure and/or a modified interface (between the PCD body and a substrate), to provide superior performance.