Shock absorber

Details Shock absorber Shock absorber

2006-05-16

2006-05-16

Thompson, Kenneth (Department: 3672)

Wells

Conduit wall or specific conduit end structure

C166S055100, C166S297000, C188S380000

Reexamination Certificate

active

07044219

ABSTRACT:
A shock absorbing tool for use in pipelines and oil wells, particularly in combination with perforation guns comprises a central mass supported on two springs between the end terminal members. The shock wave is absorbed in the free oscillation of the mass. The mass is constituted by a piston assembly. A steel rope permits the shock absorbing tool to be maneuvered within the bore hole without damage to the springs.

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