Cable-tool casing hammer

Details Cable-tool casing hammer Cable-tool casing hammer

1997-04-10

1998-06-16

Smith, Scott A.

Tool driving or impacting

Hammer or tool shaft reciprocated by gripping means which...

173 92, 173149, E21B 720

Patent

active

057656517

ABSTRACT:
A novel improvement in a tubular ram device for bi-directional driving of pipe casing, vertically or horizontally, wherein the driving hammer imparts the force to the pipe casing through a bowls-anvil and removable collet, thus allowing driving of sections of pipe casing without removing the tubular ram device or making any physical change to the pipe casing.

REFERENCES:
patent: 3166351 (1965-01-01), Baudrillard
patent: 3722603 (1973-03-01), Brown
patent: 4516662 (1985-05-01), Kostylev et al.
patent: 4676312 (1987-06-01), Mosing et al.
patent: 4759412 (1988-07-01), Brazell, II

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