US 12,435,577 B2
Bit insert for a drill bit
Youhe Zhang, Spring, TX (US); Huimin Song, Spring, TX (US); Yuelin Shen, Spring, TX (US); Xiaoge Gan, Houston, TX (US); Yuri Burhan, Spring, TX (US); Sudarsanam Chellappa, Houston, TX (US); and Scott D. McDonough, The Woodlands, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jul. 21, 2023, as Appl. No. 18/356,513.
Claims priority of provisional application 63/369,153, filed on Jul. 22, 2022.
Prior Publication US 2024/0026740 A1, Jan. 25, 2024
Int. Cl. E21B 10/62 (2006.01); E21B 10/46 (2006.01)
CPC E21B 10/62 (2013.01) [E21B 10/46 (2013.01)] 19 Claims
OG exemplary drawing
 
16. A method for manufacturing a bit, comprising:
preparing a bit body, the bit body defining an insert cavity hydraulically connected to a bore of the bit body, the insert cavity located in a cone region of the bit body, the insert cavity having a cavity profile;
preparing a bit insert, the bit insert formed from a material that is less resilient than that of the bit body, the bit insert including an insert profile, the insert profile complementary to the cavity profile, wherein the bit insert has an insert body and a plurality of hydraulic paths connected to a plurality of openings and an insert shaft connected to the insert body, wherein the bit insert further includes an insert cutting element;
inserting the bit insert into the insert cavity such that the insert shaft extends to the bore, and wherein each of the plurality of hydraulic paths are hydraulically connected with the bore; and
securing the bit insert to the insert cavity.