| 发明名称 |
CONTROL SYSTEMS COMPRISING SUPPLEMENTARY CLOSURE DEVICES AND INWARDLY INFLATING PACK-OFF DEVICES |
| 摘要 |
A supplementary closure device system comprising: a tubular, a supplementary closure device disposed in the tubular, wherein the supplementary close device comprises a housing and one or more flapper fingers disposed on the housing, and a pack-off device and associated methods. |
| 申请公布号 |
US2016115760(A1) |
申请公布日期 |
2016.04.28 |
| 申请号 |
US201514925759 |
申请日期 |
2015.10.28 |
| 申请人 |
SHELL OIL COMPANY |
发明人 |
BROOKS Robert Thomas |
| 分类号 |
E21B33/127 |
主分类号 |
E21B33/127 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A supplementary closure device system comprising: a tubular, a supplementary closure device disposed in the tubular, wherein the supplementary close device comprise a housing and one or more flapper fingers disposed on the housing, and a pack-off device. |
| 地址 |
Houston TX US |
