Invention Grant
- Patent Title: Steel tooth drill bit with improved tooth breakage resistance
- Patent Title (中): 钢齿钻头具有改善的抗牙齿破坏能力
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Application No.: US11804607Application Date: 2007-05-18
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Publication No.: US07654346B2Publication Date: 2010-02-02
- Inventor: James L. Overstreet , Robert J. Buske , Kenneth E. Gilmore , Jeremy K. Morgan
- Applicant: James L. Overstreet , Robert J. Buske , Kenneth E. Gilmore , Jeremy K. Morgan
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Bracewell & Giuliani LLP
- Main IPC: E21B10/08
- IPC: E21B10/08
Abstract:
A drill bit having steel teeth is provided with a combination of hardfacing materials on the teeth. The bases of the teeth are hardfaced with nickel-based materials to significantly reduce any potential cracking therein. Portions of the supporting cones adjacent the teeth also may be fabricated with the nickel-based hardfacing. All other portions of the teeth are hardfaced with iron-based materials.
Public/Granted literature
- US20080283304A1 Steel tooth drill bit with improved tooth breakage resistance Public/Granted day:2008-11-20
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