US 12,146,370 B2
Cutter with edge durability
Youhe Zhang, Spring, TX (US); and Xiaoge Gan, Houston, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 17/763,225
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Sep. 25, 2020, PCT No. PCT/US2020/070582
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/062443, PCT Pub. Date Apr. 1, 2021.
Claims priority of provisional application 62/906,153, filed on Sep. 26, 2019.
Prior Publication US 2022/0397006 A1, Dec. 15, 2022
Int. Cl. E21B 10/567 (2006.01); E21B 10/42 (2006.01)
CPC E21B 10/5673 (2013.01) [E21B 10/5676 (2013.01); E21B 10/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A cutting element comprising:
a body having a base and a cutting end at opposite axial ends, wherein a substrate forms the base, and a diamond table disposed on the substrate forms the cutting end;
a cutting face formed on the diamond table, the cutting face comprising:
at least one protrusion spaced a radial distance apart from an edge of the cutting element such that a center axis of the at least one protrusion is offset from an axial center of the cutting face and wherein the radial distance varies around the cutting edge where at least a first portion is between 2 and 10% of the cutting face diameter and at least a second portion is between 20% and 80% of the cutting face diameter, the edge extending around an entire periphery of the cutting face, wherein the at least one protrusion comprises at least one ridge extending a length along the cutting face; and
a lower portion extending within the radial distance between the at least one protrusion and the edge;
wherein a lower portion axial height measured between the edge and a base of the at least one protrusion is less than 30 percent of a greatest axial height of the at least one protrusion measured between the base of the at least one protrusion and an axially highest point of the at least one protrusion.