Landing string compensator
US9650873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0014
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and methods for compensating a landing string due to movement of a floating rig platform are provided. In one aspect, a compensation system for use with a landing string is provided. The compensation system includes a slip joint member attachable to the landing string, the slip joint member having an upper portion and a lower portion. The compensation system further includes a first lock assembly configured to connect the upper portion of the slip joint member to a floating rig. Additionally, the compensation system includes a second lock assembly configured to connect the lower portion of the slip joint member to a riser disposed below the floating rig. In another aspect, a method for compensating a landing string due to movement of a floating rig is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.