Shock absorber assembly for absorbing shocks encountered by a dr

Details Shock absorber assembly for absorbing shocks encountered by a dr Shock absorber assembly for absorbing shocks encountered by a dr

1982-05-07

1983-06-14

Butler, Douglas C.

Spring devices

Fluid

Expansible-contractible chamber device

175321, 464 20, F16F 918, E21B 1700

Patent

active

043878857

ABSTRACT:
A shock absorber assembly for absorbing shocks encountered by a drill string wherein the shock absorber assembly is for use with a drill string having a working fluid therein and includes a body member affixed to the drill string, a mandrel mounted for reciprocal longitudinal movement with respect to the body member and a fluid dampening member floated within the central bore of the body member in engagement with the body member and the mandrel for absorbing shocks transmitted between the body member and the mandrel.

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