Title:
BLADE COMPONENT OF PDC DRILL BIT AND PDC DRILL BIT
Document Type and Number:
WIPO Patent Application WO/2024/000105
Kind Code:
A1
Abstract:
A blade component of a PDC drill bit and a PDC drill bit. The blade component comprises a blade (10) and a plurality of cutting teeth (20); the blade (10) is provided with a plurality of assembly holes (12); the cutting teeth (20) are assembled in the assembly holes (12) in one-to-one correspondence; one end of each cutting tooth (20) is formed into a cutting head (21) having a cutting edge, and the other end of the cutting tooth (20) is formed into an assembly end (22); and the assembly ends (22) rotatably pass through the assembly holes (12) and are detachably connected to the assembly holes (12). The PDC drill bit comprises a drill bit body (30) and a plurality of blade components; a plurality of blades (10) are provided on the drill bit body (30); the assembly ends (22) of the cutting teeth (20) are rotatably assembled in the assembly holes (12) on the blades (10); and in the rotating process of the drill bit body (30), the cutting edges of the cutting teeth (20) can rotate.
Inventors:
CHEN BIN (CN)
ZHANG WEIGUO (CN)
RAO ZHIHUA (CN)
YAN DE (CN)
CHEN JUNYONG (CN)
WEN GUIFAN (CN)
ZHANG WEIGUO (CN)
RAO ZHIHUA (CN)
YAN DE (CN)
CHEN JUNYONG (CN)
WEN GUIFAN (CN)
Application Number:
PCT/CN2022/101532
Publication Date:
January 04, 2024
Filing Date:
June 27, 2022
Export Citation:
Assignee:
CNOOC DEEPWATER DEV LTD (CN)
SHEENSTONE SHENZHEN OIL TOOLS CO LTD (CN)
SHEENSTONE SHENZHEN OIL TOOLS CO LTD (CN)
International Classes:
E21B10/62; E21B10/42
Foreign References:
| CN108138544A | 2018-06-08 | |||
| CN202170754U | 2012-03-21 | |||
| CN105840106A | 2016-08-10 | |||
| JP2002155692A | 2002-05-31 |
Attorney, Agent or Firm:
SHENZHEN DINGTAIZHENGHE INTELLECTUAL PROPERTY OFFICE (CN)
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