Mudline suspension system
US4355825A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Oct 15, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/043
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mudline suspension system for supporting a hanger and casing attached thereto from a wellhead member having an internal recess with an upwardly facing internal shoulder therein including a split ring latching member having fingers normally extending upwardly and outwardly with downwardly facing shoulders on the exterior of the fingers adapted to engage the internal shoulder on the wellhead when the latch member is positioned in said recess, and releasable means for retaining the latch member supported on the hanger during running, the latch member when in engagement with said internal shoulder providing a landing surface for the hanger which supports the hanger and casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.