Invention Application
- Patent Title: ROLLER CONE DRILL BIT JOURNAL WITH ASYMMETRIC BALL RACE AND EXTENDED FRICTION RACE
- Patent Title (中): 滚轮锥面钻头，不对称球和扩展摩擦轮
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Application No.: PCT/US2015/041230Application Date: 2015-07-21
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Publication No.: WO2017014748A1Publication Date: 2017-01-26
- Inventor: LEE, Young Ho , CRAWFORD, Micheal Burl
- Applicant: HALLIBURTON ENERGY SERVICES, INC.
- Applicant Address: 3000 N. Sam Houston Parkway E. Houston, Texas 77032-3219 US
- Assignee: HALLIBURTON ENERGY SERVICES, INC.
- Current Assignee: HALLIBURTON ENERGY SERVICES, INC.
- Current Assignee Address: 3000 N. Sam Houston Parkway E. Houston, Texas 77032-3219 US
- Agency: LECOINTE, Michelle M.
- Main IPC: E21B10/08
- IPC: E21B10/08 ; E21B10/10 ; E21B10/62
Abstract:
The present disclosure relates to roller cone drill bit journals with asymmetric ball races and extended friction races. The disclosure also relates to methods of forming such journals, and methods of finishing these journals to produce finished journals with symmetric ball races.
Information query
