E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/117 (2006.01) E21B 43/116 (2006.01)
Patent
CA 2567943
A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner portion which have different cohesiveness.
Grove Brenden M.
Kneisl Philip
Werner Andrew T.
Schlumberger Canada Limited
Smart & Biggar
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