US 12,421,808 B2
Devices, systems, and methods for a reinforcing ring in a bit
Youhe Zhang, Spring, TX (US); and Huimin Song, Spring, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Aug. 31, 2023, as Appl. No. 18/240,840.
Claims priority of provisional application 63/374,099, filed on Aug. 31, 2022.
Prior Publication US 2024/0068302 A1, Feb. 29, 2024
Int. Cl. E21B 17/042 (2006.01); E21B 10/54 (2006.01)
CPC E21B 17/042 (2013.01) [E21B 10/54 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A bit, comprising:
a bit head formed from a first material;
a connection portion connected to the bit head having a box connection opposite the bit head, wherein the box connection comprises an inner surface having a threaded connection for connection to a drill string; and
a reinforcing ring formed from a second material, the reinforcing ring at least partially embedded in the connection portion to strengthen the connection portion and extending axially into the bit head past the box connection, wherein the reinforcing ring is connected to the connection portion with one or more interlocking features.