Single-trip perforating gun assembly and method

Details Single-trip perforating gun assembly and method Single-trip perforating gun assembly and method

1997-11-26

2000-01-11

Tsay, Frank

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

166 551, 166 552, E21B 4311

Patent

active

06012525&

ABSTRACT:
Disclosed is an improved apparatus and method for perforating subterranean wells having a centralizer changeable from a running condition to a collapsed condition.

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