Boring or penetrating the earth – Processes
Patent
1999-08-31
2000-08-01
Dang, Hoang
Boring or penetrating the earth
Processes
761082, 175374, 175376, 175378, E21B 1016
Patent
active
060952628
ABSTRACT:
A novel and improved roller cone drill bit and method of design are disclosed. A roller cone drill bit for drilling through subterranean formations having an upper connection for attachment to a drill string, and a plurality cutting structures rotatably mounted on arms extending downward from the connection. A number of teeth are located in generally concentric rows on each cutting structure. The actual trajectory by which the teeth engage the formation is mathematically determined. A straight-line trajectory is calculated based on the actual trajectory. The teeth are positioned in the cutting structures such each tooth having a designed engagement surface is oriented perpendicular to the calculated straight-line trajectory.
REFERENCES:
patent: 4187922 (1980-02-01), Phelps
patent: 4393948 (1983-07-01), Fernandez
patent: 4427081 (1984-01-01), Crawford
patent: 4815342 (1989-03-01), Brett et al.
patent: 5197555 (1993-03-01), Estes
patent: 5372210 (1994-12-01), Harrell
patent: 5415030 (1995-05-01), Jogi et al.
patent: 5704436 (1998-01-01), Smith et al.
patent: 5730234 (1998-03-01), Putot
patent: 5767399 (1998-06-01), Smith et al.
patent: 5794720 (1998-08-01), Smith et al.
Dang Hoang
Halliburton Energy Service,s Inc.
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