US 12,006,773 B2
Drilling tool having pre-fabricated components
Youhe Zhang, Spring, TX (US); Mingdong Cai, Cypress, TX (US); Sudarsanam Chellappa, Houston, TX (US); Huimin Song, Spring, TX (US); and Ting Ren, Conroe, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jan. 18, 2021, as Appl. No. 17/151,306.
Claims priority of provisional application 62/961,985, filed on Jan. 16, 2020.
Claims priority of provisional application 62/962,000, filed on Jan. 16, 2020.
Prior Publication US 2021/0222497 A1, Jul. 22, 2021
Int. Cl. E21B 10/46 (2006.01); B22D 19/06 (2006.01); B22D 23/06 (2006.01); B33Y 80/00 (2015.01)
CPC E21B 10/46 (2013.01) [B22D 19/06 (2013.01); B22D 23/06 (2013.01); B33Y 80/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A bit for removing material from a formation, the bit comprising:
a bit body comprising a metal alloy and a first ultrahard material, wherein the bit body comprises a plurality of blade cores extending from the bit body; and
a plurality of pre-fabricated components that form a plurality of blade portions of the bit, wherein each of the plurality of pre-fabricated components comprises a second ultrahard material and has a density of at least 90%, wherein the plurality of blade cores is metallurgically bound to inner surfaces of the plurality of pre-fabricated components by only a superficial penetration of the metal alloy into the inner surfaces.