发明名称 |
WELL PERFORATION DEVICE |
摘要 |
<p>WELL PERFORATION DEVICE The invention relates to a well perforation device comprising a support (25) and encapsulated shaped charges (26) fixed unidirectionally on this support, usually on the back side of a supporting bar whose front side is to be applied against the casing. Positioning rings (35, 36) are snapped onto the charges (26) at regular intervals along the support (25). These rings have a rounded external surface on which the perforation device can swivel up to a correct balanced position for which the front sides of the charges are applied against the casing (13).</p> |
申请公布号 |
CA1177748(A) |
申请公布日期 |
1984.11.13 |
申请号 |
CA19820406305 |
申请日期 |
1982.06.29 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
BOSSE-PLATIERE, MICHEL;BOUGUYON, GERARD;LAVIGNE, JEAN |
分类号 |
E21B43/117;E21B43/119;(IPC1-7):E21B43/11 |
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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