Extended Operational and Trade Vocabulary

Offshore Drilling Rigs, FPSOs, and Offshore Vessels glossary (page 2)

Vocabulary of offshore drilling and support: MODU classification rules, anchor-handling tug supply and anchor-handling tugs, semisubmersible hull generations such as the Aker H-3 and H-6e with DP3 station-keeping, FPSOs, and the rig designs and support-vessel terminology serving the offshore oil and gas industry.

333 defined terms.

Showing 83 on this page (page 2 of 2).

S

Sepetiba FPSO: SBM Offshore FPSO operating on the Mero 2 field offshore Brazil for Petrobras.
Sevan 1000: Sevan Marine larger cylindrical FPSO hull design.
Sevan Cylindrical 650: Sevan Marine cylindrical FPSO hull design with 650,000 barrel storage.
Sevan Driller: Cylindrical hull drilling unit built on the Sevan Marine 650 design.
Sevan Louisiana: Cylindrical drilling unit operating in the US Gulf of Mexico for Seadrill.
Seven Borealis: Subsea7 pipelay and heavy-lift vessel of about 182 m length.
Seven Oceans: Subsea7 reel-lay vessel.
Shelf Drilling: Dubai-based shallow water jackup specialist with a global benign environment fleet.
Single Point Mooring: Generic term covering CALM, SALM, and turret moorings allowing weathervaning of moored tankers and FPSOs.
Sleipnir: Heerema semi submersible crane vessel with twin 10,000 t cranes used on offshore substation and foundation installation.
Slot Jackup: Jackup with a fixed drilling slot in the hull through which the well is drilled, common in older designs.
Solitaire: Allseas pipelay vessel of 397 m length, the world's largest pipelay vessel by tonnage and lay tension.
SOV: Service operation vessel for offshore wind; DP2, walk-to-work, ~60 m+.
SPM: Single point mooring offshore terminal.
SPS Code: IMO Code of Safety for Special Purpose Ships, often applied to offshore construction and accommodation vessels.
Steel Wire Mooring: Steel wire rope mooring component used in combination with chain in catenary and taut-leg systems.
Stena Carron: GVA 7500 sixth-generation harsh-environment drillship operated by Stena Drilling.
Stena Don: Moss CS-60-based harsh-environment semisubmersible operated by Stena Drilling in the UK North Sea.
Stena Drilling: Privately owned Scottish drilling contractor with a fleet of drillships and the Stena Don semisubmersible.
Stena DrillMAX: GustoMSC P-10,000 ultra-deepwater drillship class operated by Stena Drilling.
STL Buoy: Submerged Turret Loading buoy used by shuttle tankers to receive crude from subsea risers.
STP Buoy: Submerged Turret Production buoy enabling FPSO disconnection from a turret in extreme weather.
Submersible Drilling Rig: Bottom-supported MODU that submerges its lower hull onto the seabed in shallow water.
Subsea7 Award: Subsea7 pipelay and heavy construction vessel.
Suction Pile: Hollow steel cylinder installed by suction and used as a mooring foundation or jacket anchor.
SYMS Mooring: Single Yoke Mooring System used to connect FSOs to a fixed yoke tower in shallow water.

T

Tamar FPSO: Floating production unit planned and partially deployed for Israeli gas projects.
Technip Apache II: Technip pipelay vessel formerly used in North Sea operations.
Tender Assist Drilling Rig: Floating support vessel housing drilling crew and supplies that assists a small platform-mounted derrick.
Tender Barge: Older tender assist concept using a moored barge to support fixed-platform drilling operations.
Thalassa FPSO: Generic FPSO naming reference example used in Mediterranean projects.
TLP: Tension Leg Platform, a floating foundation tethered to the seabed by vertical tendons under tension, used in concepts such as X1 Wind PivotBuoy.
Topsides: The hull area between the waterline and the deck edge.
Torpedo Pile: Free-fall installed steel pile shaped like a torpedo used as deepwater mooring anchor, pioneered in Brazil.
Tortue FLNG: Greater Tortue Ahmeyim FLNG project served by Gimi FLNG offshore Mauritania and Senegal.
Transocean: Major offshore drilling contractor; owned Deepwater Horizon.
Transocean Enabler: CAT-D harsh-environment semisubmersible operated by Transocean.
Transocean Encourage: CAT-D harsh-environment semisubmersible operated by Transocean.
Transocean Endurance: GVA 7500 harsh-environment semisubmersible.
Transocean Norge: CAT-D harsh-environment semisubmersible operated by Transocean for Equinor in Norway.
Transocean Spitsbergen: Aker H-6e harsh-environment semisubmersible operated by Transocean in Norway.
Tunable Risers: Production risers designed with adjustable buoyancy modules for varying water depths and vessel motions.
Tupi FPSO: P-class FPSOs operated by Petrobras on the Lula and Tupi pre-salt fields.
Turret Mooring: Turret allowing FPSO to weathervane around fixed seabed legs.

U

Ultra-Deepwater Drillship: Drillship rated for water depths beyond 7,500 ft.
Ultra-Harsh Environment Semisubmersible: Sixth or seventh-generation semisubmersible designed for North Atlantic and Barents Sea conditions.
Umbilical: Composite hose/cable bundle (electric, hydraulic, chemical, fiber).
Umbilical Lay Vessel: Vessel equipped with carousels and tensioners specifically configured for subsea umbilical installation.
Unity FPSO: SBM Offshore FPSO Liza Unity operating on the Liza Phase 2 development offshore Guyana.
Upper Marine Riser Package: Subsea wellhead riser interface containing flex joint and slip joint above the lower marine riser package.

V

Valaris: London-headquartered offshore drilling contractor formed from the Ensco-Rowan merger and post-bankruptcy restructuring.
Valaris DS-15: Newbuild drillship in the Valaris fleet, formerly Atwood Archer.
Valaris DS-4: Drillship in the Valaris fleet, formerly Ensco DS-4.
Valaris MS-1: Harsh-environment semisubmersible in the Valaris fleet, formerly Atwood Osprey.
Vantage Drilling: Drilling contractor operating jackups and drillships including the Tungsten Explorer.
Vard: Norwegian shipbuilder, builder of REV Ocean.
Vito FPS: Shell Vito semisubmersible floating production system in the US Gulf of Mexico.
VLA: Vertical Loaded Anchor designed to resist near-vertical loads from taut-leg mooring systems.
VLCC FSO Conversion: Conversion of a very large crude carrier into a floating storage and offloading unit for field service.
Voyageur Spirit FPSO: Teekay Offshore FPSO formerly operating on the Huntington field in the UK North Sea.

W

Well Intervention Vessel: Monohull or semisubmersible vessel used for through-tubing well intervention work in deepwater fields.
West Aquarius: Seadrill GVA 7500 harsh-environment semisubmersible.
West Bollsta: Bollsta Dolphin harsh-environment semisubmersible originally built for Fred Olsen Energy.
West Capricorn: Seadrill sixth-generation semisubmersible.
West Carina: Drillship formerly operated by Schahin and later transferred to other operators.
West Eclipse: Seadrill GVA 7500 sixth-generation semisubmersible.
West Eminence: Samsung-built drillship operated for Petrobras under long-term contract.
West Hercules: Seadrill GVA 7500 harsh-environment semisubmersible.
West Jupiter: Seadrill sixth-generation drillship.
West Mira: Northern Drilling sixth-generation harsh-environment semisubmersible operating in Norway.
West Phoenix: Seadrill GVA 7500 harsh-environment semisubmersible.
West Tellus: Seadrill sixth-generation drillship.
Wilhelmsen Wilforce: Wilhelmsen Ahrenkiel offshore support brand example.
Wintershall Dea: Operator that has partnered in the Greensand CCS project and other North Sea CO2 storage studies.
Workover Riser: Riser system used to perform completion and workover activities on subsea wells.
WTIV: Wind turbine installation vessel; jack-up class for offshore wind.

X

Xikomba FPSO: Saipem-built FPSO previously operating on the Xikomba field offshore Angola before redeployment.

Y

Yantai CIMC Raffles: Chinese yard building some larger tug-supply units.
Yinson Holdings: Kuala Lumpur-listed FPSO operator, parent of Floating Production Solutions.
Yoke Mooring System: Rigid yoke linking a fixed mooring tower to an FSO or FPSO, used widely in benign shallow water fields.

Z

Zentech Jackup: Zentech-designed jackups used by smaller contractors in shallow water international markets.
Zhonghai Youfu: COSL subsidiary brand operating in offshore drilling services.
Zonal Isolation Packers: Subsurface completion equipment used to isolate producing intervals in subsea wells fed to floating units.