DEVICE FOR MECHANICAL PERFORATION OF WELLS Russian patent published in 1996 - IPC

Abstract RU 2069741 C1

FIELD: secondary opening of oil and gas wells by perforation. SUBSTANCE: device for mechanical perforation of wells includes body with channels, working pistons with puncturing units and additional piston with rods. Diameters of additional piston, rod and working pistons are made with ratios (1.5-10): 1:(1-6). EFFECT: provision of increase of pressure in working zone and treatment of opened channels with working fluid jets. 8 cl, 1 dwg

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RU 2 069 741 C1

Authors

Dates

1996-11-27—Published

1993-05-19—Filed