OILFIELD PERFORATOR DESIGNED FOR HIGH VOLUME CASING REMOVAL

摘要

A perforating tool (40) includes a charge holder (60) connected to a work string (112) and a perforator (10) fixed in a charge holder disposed along the work string. The perforator includes a cylindrical case (12), an explosive material, a metal cap (14), and a detonating cord (46). The case has a bulkhead (50) at a first end, an open mouth at a second end, and an interior volume. The first end includes a post (54) having a slot (56). The explosive material is disposed in the interior volume. The metal cap (14) covers the open mouth of the case and has a disk section (20) defined by a separator ring (22). The separator ring has a structurally weakened zone (24) that encircles the disk section. The detonating cord is received in the slot of the post.