Completion & Workover Risers
Completion and workover risers are an essential tool in the development of most subsea production systems. Riser arrangements and methods of implementation can vary considerably from one application to the next, with each role presenting specific design requirements.
2H Offshore have conducted over 100 projects on design and analysis of completion and workover riser systems. This engineering has encompassed monobore, dual and triple bore risers, using union nut, tool joint and casing connection systems.
We have a thorough appreciation of the interfaces which include the subsea tree and completion, BOP, vessel moonpool, drilling riser tensioners, drill string compensator, coiled tubing equipment and required running and operating procedures.
Examples of our experience include:
- Total AKPO drill pipe riser design, analysis and taper joint supply
- BP Schiehallion 7x2 5k and non-bore completion riser design and analysis
- Cameron (UK) – over 20 studies on the 5x2 10k system




