Lockdown system and method
US10494889B2 · kind B2 · utility
1Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2016 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubing or casing hanger assembly includes a tubing or casing hanger including a first key disposed on an outer surface of the hanger, and a locking member disposed about the hanger, the locking member including a first key disposed on an inner surface of the hanger, wherein the locking member includes a first position where the first key of the locking member is circumferentially spaced from the first key of the hanger, and a second position where the first key of the locking member circumferentially overlaps with the first key of the locking member to couple the locking member with the hanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.