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Title:
MULTI-SHOT TUBING PERFORATOR
Document Type and Number:
WIPO Patent Application WO2003036028
Kind Code:
A3
Abstract:
A perforator apparatus for repeated punching of holes at a multiple of selected locations in tubing of a well bore. The apparatus is activated for repeated punching operations by a fluid control valve mechanism that controls opposed directional movement of a piston connected to a punch of the perforator apparatus.

Inventors:
MARSH BRENT
PARKER ROBERT
POLLOCK TIMOTHY DAVID
Application Number:
PCT/US2002/031583
Publication Date:
December 11, 2003
Filing Date:
October 18, 2002
Export Citation:
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Assignee:
VARCO INT (US)
International Classes:
E21B43/112; (IPC1-7): E21B43/112
Domestic Patent References:
WO1996010697A11996-04-11
Foreign References:
US4387767A1983-06-14
US5845711A1998-12-08
US4396230A1983-08-02
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