US Patent:
20080179104, Jul 31, 2008
Inventors:
Youhe Zhang - Tomball TX, US
Guodong Zhan - Spring TX, US
Xiayang Sheng - Sugar Land TX, US
Alan W. Lockstedt - Magnolia TX, US
Anthony Griffo - The Woodlands TX, US
Yuelin Shen - Houston TX, US
Hong Deng - Houston TX, US
Madapusi K. Keshavan - The Woodlands TX, US
Assignee:
SMITH INTERNATIONAL, INC. - Houston TX
International Classification:
E21B 10/08
Abstract:
A drill bit that includes a bit body; and at least one cutting element for engaging the formation disposed on the bit body, the at least one cutting element comprising: a ductile phase; a plurality of carbide particles dispersed in the ductile phase; and a plurality of nanotubes integrated into the cutting element is disclosed.