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Drillships are just one way to perform various types of drilling. This function can also be performed by semi-submersibles, jackups, barges, or platform rigs. [5] Drillships have the functional ability of semi-submersible drilling rigs and also have a few unique features that separate them from all others, first being the ship-shaped design. [6]
Fairmount Marine is a shipping company in the Koninklijke Boskalis Westminster N.V. group. The company operates 11 heavy transport vessels, including two self-propelled semi-submersible ships which are owned by Fairmount Heavy Transport.
Development Driller III is a fifth generation, Vanuatu-flagged dynamic positioning semi-submersible ultra-deepwater drilling rig owned by Transocean and operated under lease agreements by various petroleum exploration and production companies worldwide. The vessel is capable of drilling in water depths up to 7,500 feet (2,300 m) with drilling ...
Deepwater Nautilus is a fifth-generation, RBS-8M design, ultra-deepwater, column-stabilized, semi-submersible mobile offshore drilling unit, designed to drill subsea wells for oil exploration and production. [4] She was designed by Reading & Bates RBS-8M and built by Hyundai Heavy Industries in 2000 at the Ulsan shipyard in South Korea.
The first semi-submersible floating production platform was the Argyll FPF converted from the Transworld 58 drilling semi-submersible in 1975 for the Hamilton Brothers North Sea Argyll oil field. As the oil industry progressed into deeper water and harsh environments, purpose-built production semi-submersible platforms were designed.
In 2006-2008, Saipem laid down Scarabeo 8 and Scarabeo 9 ultra deepwater 6th generation semi-submersible drilling rigs, completed in 2011–12. In 2011, Saipem completed the two 1,220 km gas sealines of Nord Stream 1 , a system of offshore natural gas pipelines from Russia to Germany and the longest in the world.
Tender assisted rigs are an existing type of development drilling, workover or plug and abandonment rig (same "family" as jack up rig, semi-submersible or drillship).). However, it is the only design that can operate in both shallow and deepwater (from 20 to 2,000 metres, 66 to 6,5
Iolair is a self-propelled, twin hull, vessel and operates as a dynamically positioned (DP) construction support vessel. The vessel can operate up to a water depth of 488 metres (1,601 ft), is 102 metres (335 ft) long and 51 metres (167 ft) wide, and has 350 beds with single and double occupancy.