| 发明名称 |
CASING MANDREL FOR FACILITATING WELL COMPLETION, RE-COMPLETION OR WORKOVER |
| 摘要 |
A casing mandrel for an independent screwed wellhead includes a seal bore for receiving a fixed-point packoff connected to a high-pressure mandrel of a pressure isolation tool, and a pin thread adapted for engagement with a box thread of a tubing head supported by the casing mandrel.
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| 申请公布号 |
US2011180252(A1) |
申请公布日期 |
2011.07.28 |
| 申请号 |
US201113079927 |
申请日期 |
2011.04.05 |
| 申请人 |
STINGER WELLHEAD PROTECTION, INC. |
发明人 |
MCGUIRE BOB |
| 分类号 |
E21B34/16 |
主分类号 |
E21B34/16 |
| 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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