| 摘要 |
A perforating apparatus ( 100 ) includes a plurality of shaped charges ( 102 ) each having a case, an initiation end and a discharge end. A detonating cord ( 116 ) is operably associated with the initiation ends of the shaped charges ( 102 ). An energy absorbing charge holder ( 104 ) has a gas expansion region and a detonating cord receiving area to receive the detonating cord therein ( 116 ). The energy absorbing charge holder ( 104 ) also has a plurality of charge receiving locations that closely receive the shaped charges ( 102 ) therein such that upon detonation of the shaped charges ( 102 ), energy is transferred from the cases of the shaped charges ( 102 ) to the energy absorbing charge holder ( 104 ), thereby reducing fragmentation of the cases.
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