Drill string shock absorbers

Details Drill string shock absorbers Drill string shock absorbers

1994-03-28

1995-01-03

Buiz, Michael Powell

Boring or penetrating the earth

With tool shaft detail

Shaft carried guide or protector

E21B 1700

Patent

active

053777727

ABSTRACT:
A shock absorber for use with a borehole drill string and which is to take a rotational load and absorb axial shock loading, the absorber consisting essentially of a pair of oppositely disposed components adapted for connection into a drill string and positioned on opposite sides of a resilient member, the latter being held between rigid rings around and separate from the components, each ring being secured to the component on the opposite side of the member.

REFERENCES:
patent: 1861815 (1932-06-01), Radford
patent: 2482962 (1949-09-01), Boice
patent: 4279850 (1981-07-01), Lynch
patent: 5234063 (1993-08-01), Collinsworth

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