Title:
POLYCRYSTALLINE DIAMOND COMPACT CUTTERS WITH CONIC SHAPED END
Document Type and Number:
WIPO Patent Application WO/2012/149086
Kind Code:
A3
Abstract:
A cutting element may have a substrate; and an ultrahard material layer having a substantially planar upper surface disposed on an upper surface of the substrate; wherein at least a portion of the side surface between the upper surface of the substrate and a lower end of the substrate form at least one conic surface, wherein the at least one conic surface extends a height relative to the total height of the substrate and ultrahard material layer ranging from about 1:10 to 9:10, and wherein the substrate comprises a substantially planar lower surface. The cutting elements may also be rotatable cutting elements at least partially surrounded by outer support elements.
Inventors:
ZHANG YOUHE (US)
SHEN YUELIN (US)
BURHAN YURI (US)
SHI JIBIN (US)
SHEN YUELIN (US)
BURHAN YURI (US)
SHI JIBIN (US)
Application Number:
PCT/US2012/035087
Publication Date:
April 25, 2013
Filing Date:
April 26, 2012
Export Citation:
Assignee:
SMITH INTERNATIONAL (US)
ZHANG YOUHE (US)
SHEN YUELIN (US)
BURHAN YURI (US)
SHI JIBIN (US)
ZHANG YOUHE (US)
SHEN YUELIN (US)
BURHAN YURI (US)
SHI JIBIN (US)
International Classes:
E21B10/46; B24D3/00; C01B31/06; C22C26/00
Foreign References:
| US20090020339A1 | 2009-01-22 | |||
| US20100219001A1 | 2010-09-02 | |||
| US5449048A | 1995-09-12 |
Attorney, Agent or Firm:
HOLTHUS, Lisa, K. et al. (IP Administration Center of ExcellenceRoom 472, Houston Texas, US)
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