Flexible workover riser system
US4281716A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1979 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Aug 13, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/0175
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This describes a method of performing operations in a well selected from a group or cluster of subsea wells which are produced through a production riser means to production facilities on a floating platform. There is provided a flexible workover riser on the platform which extends through a passage on the platform at a location remote from the moon pool for the production riser means. The flexible workover riser is run through said passage and guided into connection with the production tubing in the subsea well. Wireline or other well operations are then conducted through the connected flexible workover riser from the floating platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.