| 发明名称 |
OPPHENGSSYSTEM FOR FORINGSROER. |
| 摘要 |
A well casing suspension system comprising a casing hanger assembly with an expandable, multiple shoulder, split load ring that is radially expanded into supporting position in a mating groove in a wellhead housing by contact with a previously installed annulus packoff. |
| 申请公布号 |
NO885753(A) |
申请公布日期 |
1989.10.30 |
| 申请号 |
NO19880005753 |
申请日期 |
1988.12.23 |
| 申请人 |
FMC CORP |
发明人 |
WESTER RANDY J;HOPKINS BOB C;UNDERWOOD DONALD M |
| 分类号 |
E21B33/04;(IPC1-7):E21B33/04 |
主分类号 |
E21B33/04 |
| 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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