Pressure actuated pipe cutting tool

Details Pressure actuated pipe cutting tool Pressure actuated pipe cutting tool

1995-02-21

1996-05-07

Nelson, Peter A.

Ammunition and explosives

Blasting

Patterned blasting

102313, 166 63, 299 13, F42B 300, E21B 2702

Patent

active

055135706

ABSTRACT:
The present invention is a system for severing pipe. The system includes an explosively actuated pipe cutter, a pressure actuated initiator, and a means for suspending the cutter and the initiator inside the pipe and pressure sealing the interior of the pipe.
In a particular embodiment of the invention, the initiator includes a time delay to enable reduction in pressure applied to the interior of the pipe for actuating the initiator.

REFERENCES:
patent: 3253653 (1966-05-01), Layne, Sr.
patent: 3374735 (1968-03-01), Moore
patent: 3590738 (1971-07-01), Holzman
patent: 4339000 (1982-07-01), Cronmiller
patent: 5031540 (1991-07-01), Kenny
patent: 5239316 (1993-11-01), Nelson et al.
patent: 5308149 (1994-05-01), Watson et al.
patent: 5467824 (1995-11-01), DeMarsh et al.
Brochure: Pipe Recovery Guide: Advanced Technology for Fast, Effective Pipe Recovery, Western Atlas International, Inc., U.S.A., 1989.
Brochure: JRC Drill Collar Severing Tool, Jet Research Center, Inc. (U.S.A.).

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