FIELD: oil and gas producing industry, particular, shooting-blasting apparatuses used for pipe breakdown in well. SUBSTANCE: the offered pipe cutter has cylindrical body 6 with side covers 5. Installed in body is explosive charge 1 with annular cumulative hollow covered with lining 4 and means of initiation 2, 3. Cover 5 has projection in form of truncated cone whose small base is adjacent to cover. Sizes of all members are offered in the invention description. EFFECT: enhanced efficiency. 8 dwg
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Authors
Dates
1997-09-27—Published
1994-09-07—Filed