Title:
MULTIPLE RIDGE CUTTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2017/172431
Kind Code:
A3
Abstract:
A cutting element may include a substrate; and an ultrahard layer on the substrate, the ultrahard layer including a non-planar working surface that is surrounded by a peripheral edge having a varying height around a circumference of the cutting element, the working surface also having: a plurality of cutting crests extending from an elevated portion of the peripheral edge across at least a portion of the working surface; at least one valley between the plurality of cutting crests; and a canted surface extending laterally from each of the outer plurality of cutting crests towards a depressed portion of the peripheral edge, a height between the depressed portion and the elevated portion being greater than a height between the elevated portion and the valley.
Inventors:
GAN XIAOGE (US)
SONG HUIMIN (US)
GREGG JASON (US)
TAMMINEMI SANDEEP (US)
SONG HUIMIN (US)
GREGG JASON (US)
TAMMINEMI SANDEEP (US)
Application Number:
PCT/US2017/023509
Publication Date:
August 23, 2018
Filing Date:
March 22, 2017
Export Citation:
Assignee:
SMITH INTERNATIONAL (US)
International Classes:
E21B10/42; E21B10/54
Domestic Patent References:
| WO2013040123A1 | 2013-03-21 |
Foreign References:
| US20150259988A1 | 2015-09-17 | |||
| US20150122553A1 | 2015-05-07 | |||
| US20140284117A1 | 2014-09-25 | |||
| US20040163851A1 | 2004-08-26 |
Attorney, Agent or Firm:
NUTTALL, Colby C. et al. (US)
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