US 12,467,123 B2
Boronized corrosion resistant alloy component for high pressure and high temperature oilfield applications
Timothy Ryan Dunne, Pearland, TX (US); Lei Zhao, Houston, TX (US); Jiaxiang (Jason) Ren, Houston, TX (US); and Peng Cheng, Houston, TX (US)
Assigned to CNPC USA CORPORATION, Houston, TX (US); BEIJING HUAMEI, INC., Beijing (CN); CHINA NATIONAL PETROLEUM CORPORATION, Beijing (CN); and KEMBL PETROLEUM TECHNOLOGY DEVELOPMENT CO. LTD, Beijng (CN)
Filed by CNPC USA CORP., Houston, TX (US); BEIJING HUAMEI, INC., Beijing (CN); and CHINA NATIONAL PETROLEUM CORPORATION, Beijing (CN)
Filed on Oct. 9, 2023, as Appl. No. 18/483,013.
Prior Publication US 2025/0115986 A1, Apr. 10, 2025
Int. Cl. E21B 23/01 (2006.01); C22C 19/05 (2006.01); C22C 30/00 (2006.01); C23C 8/70 (2006.01); E21B 33/129 (2006.01)
CPC C23C 8/70 (2013.01) [C22C 19/058 (2013.01); C22C 30/00 (2013.01); E21B 23/01 (2013.01); E21B 33/129 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of hard surfacing a slip component for a downhole tool, the slip component having a bearing surface and being composed of a base material, the base material being metallic, the method comprising:
positioning at least the bearing surface of the slip component with a direct contact with a boron source having 10% B4C, 10% KBF and 80% SiC, wherein the boron source maintains in a non-molten state;
bonding an external layer at least on the bearing surface to form a metallurgical bond between boron from the boron source with the base material by boriding the base material; and
maintaining a bulk temperature of the slip component below a melting point of the base material.