Sonic drilling method and apparatus

Details Sonic drilling method and apparatus Sonic drilling method and apparatus

1994-09-02

1995-05-23

Buiz, Michael Powell

Boring or penetrating the earth

Natural vibration characteristic of an element of boring...

175 22, E21B 700

Patent

active

054172900

ABSTRACT:
In combination with resonant sonic earth drilling components, and for particular use in retrieving a core sample in a core barrel seated against an internal shoulder in a sonically driven drill bit, a resilient axial loading device not only urges the bottom of the core barrel into continuous contact with the seat but also cushions the core barrel from the sonic energy in the drill bit, thereby minimizing damage to the core sample.

REFERENCES:
patent: 3633688 (1972-01-01), Bodine
patent: 4236580 (1980-12-01), Bodine
patent: 4836299 (1989-06-01), Bodine

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