Convex ridge type non-planar cutting tooth and diamond drill bit
US10125552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2016 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/5673
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a convex ridge type non-planar cutting tooth and a diamond drill bit, the convex ridge type non-planar cutting tooth comprises a cylindrical body, the surface of the end portion of the cylindrical body is provided with a main cutting convex ridge and two non-cutting convex ridges, the inner end of the main cutting convex ridge and the inner ends of the two non-cutting convex ridges converge at the surface of the end portion of the cylindrical body, the outer end of the main cutting convex ridge and the outer ends of the two non-cutting convex ridges extend to the outer edge of the surface of the end portion of the cylindrical body, the surfaces of the end portion of the cylindrical body on both sides of the main cutting convex ridge are cutting bevels. The convex ridge type non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, convex ridge type non-planar cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.