Pipe die method and apparatus

Details Pipe die method and apparatus Pipe die method and apparatus

1998-08-31

2000-06-27

Tsay, Frank S.

Boring or penetrating the earth

Wedging slip assembly for supporting a pipe or rod

166 7514, 166382, 294902, E21B 1907

Patent

active

060795093

ABSTRACT:
A die set used in pipe tongs in the oil and gas industry for gripping pipe while threadably coupling pipe joints, the die having electroless nickel plated, non-interrupted knurled teeth having a special shape which reduces die penetration, thereby reducing wall loss due to die penetration, stress cracking and carbon transfer to oil and gas field tubular pipe and especially to corrosive resistive alloy pipe, thus further reducing pipe corrosion.

REFERENCES:
patent: 2156384 (1939-05-01), Fluellen
patent: 2552628 (1951-05-01), Boatright
patent: 2814087 (1957-11-01), Palmer
patent: 4475607 (1984-10-01), Haney
patent: 5451084 (1995-09-01), Jansch
patent: 5609226 (1997-03-01), Penisson
patent: 5971086 (1999-10-01), Bee et al.

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