| 主权项 |
1. A shaped charge assembly for perforating a wellbore tubular and a subterranean formation intersected by a wellbore, comprising:
a first shaped charge having a casing, a conically shaped liner disposed on the casing, and an explosive material in a chamber formed in the casing, the casing having a post formed opposite to the conically shaped liner, the post of the first shaped charge casing having a channel, the first shaped charge being disposed on an outer surface of the wellbore tubular and pointing radially outward toward the formation; a second shaped charge having a casing, a bowl shaped liner disposed on the casing, and an explosive material in a chamber formed in the casing, the casing having a post formed opposite to the bowl shaped liner, the post of the second shaped charge casing having a channel, the second shaped charge pointing radially inward toward the wellbore tubular, the post of the first shaped charge abutting the post of the second shaped charge; and a detonator cord compressed between the posts of the first and the second shaped charges, the detonator cord having a first portion in the channel of the post of the first shaped charge casing and a second portion in the channel of the post of the second shaped charge casing, the detonator cord being energetically connected to the explosive charges of the first and the second shaped charges, and wherein detonation of the explosive charges forms perforating jets that travel in substantially opposite directions. |
