发明名称 |
Through the tubing perforating gun assembly. |
摘要 |
<p>A through the tubing perforating gun assembly having means for separating the upper head from the gun carrier upon firing. This allows the gun carrier to fall to the bottom of the well and eliminates the need to retrieve the carrier. The carrier is attached to the upper head member by frangible means and special charges are used to separate the carrier from the head.</p> |
申请公布号 |
EP0136235(A2) |
申请公布日期 |
1985.04.03 |
申请号 |
EP19840401860 |
申请日期 |
1984.09.20 |
申请人 |
SCHLUMBERGER LIMITED;SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER |
发明人 |
DERMOTT, RAYMOND WILBUR;HARTWEIN, KENNETH JOE |
分类号 |
E21B43/117;(IPC1-7):E21B43/116 |
主分类号 |
E21B43/117 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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