| 发明名称 |
DOWNHOLE APPARATUS AND METHOD |
| 摘要 |
A downhole apparatus(10) for use in activating a downhole tool (T). The apparatus (10) comprises a seat (18) configured to receive an object, such as a ball (16). The seat (18) comprises a convex object engaging surface(24) for engaging the object. |
| 申请公布号 |
WO2014087153(A3) |
申请公布日期 |
2014.12.24 |
| 申请号 |
WO2013GB53199 |
申请日期 |
2013.12.03 |
| 申请人 |
PETROWELL LIMITED |
发明人 |
PATTON, DAMIEN GERARD;WEBSTER, OLIVER;PURKIS, DANIEL GEORGE |
| 分类号 |
E21B23/04;E21B34/14 |
主分类号 |
E21B23/04 |
| 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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