Firing head

Details Firing head Firing head

E - Fixed Constructions

21

B

166/10

E21B 29/00 (2006.01) E21B 43/116 (2006.01) E21B 43/1185 (2006.01)

Patent

CA 2024418

A hydraulically actuated firing head for a tubing con- veyed well perforating system includes an actuating piston responsive to a differential between tubing pressure and a sealed low pressure zone contained within the firing head. The actuating piston releases a firing piston which ini- tiates a firing sequence.

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