Otis Field Development, Gulf of Mexico
Otis is a deepwater discovery located in Mississippi Canyon block 79 in the Gulf of Mexico. The field lies in water depth of approximately 3,800ft.
MoorLink Solutions AB
Wire Clamps, Swivel Links, Connections and Mobile Mooring Components
Bror Nilssons gata 5,
SE-417 55 Gothenburg,
Sweden
MoorLink’s special mooring components meet the most extreme needs of the demanding offshore industry.
We design, produce and install certified swivel links, connections and wire clamps for use on any chain, wire or rope. We have numerous by ABS/DNV GL approved swivel sizes and are involved in functional testing in test beds in co-operation with well-known laboratories.
Since 1995, Moorlink has delivered approximately 2,500 units worldwide. We focus on providing products for the following solutions:
- Installation solutions
- Mobile mooring solutions
- Permanent mooring solutions
Swivel links
We supply all kinds of chain swivels and anchor handling swivels, as well as long-term mooring (LTM) swivel links such as the especially designed ML 1200/40 swivel link for the FPSO ‘PetroJarl Foinaven’, which is moored west of Shetland.
MoorLink Solutions AB
The link connects the upper two wire segments (diameter 135mm, six stranded wire each), as well as joining the 40 Te net up-lift subsurface buoy to the mooring line. The swivel link is constructed from a 200mm-thick plate and includes a large diameter brass bearing, which prevents the buoy pigtail from twisting around the mooring line. Composite Orkot bushes or washers (in total 14 on each swivel link) protect all items in movement.
Extensive technical investigations and calculation were performed in order to ensure these swivel links will withstand the adverse environment for at least 20 years. This included fatigue and static calculations, as well as cathodic protection calculations to meet DNV’s standard for long-term mooring systems. The complete weight in air is 2,450kg each.
Wire clamps
The Moorlink Mk4, Mk5 and Mk6 wire clamp series are specially designed wire clamps developed to fit surface or sub-surface buoyancy to six stranded mooring wires of any diameter, typically between 34mm and 103mm.
Clamps are also designed to other wire types and functions, such as hanging off a wire when performing maintenance to an FPSO.
The clamps are cast or forged in high-grade steel, heat-treated for correct material characteristic and finally machined to fit perfectly. A mould is then taken of the six stranded wire, which is placed in between the two halves of the outer casted casings. A specially chosen type and hardness of polyurethane is then poured into the inside of the steel halves.
The result is a high-performance system, which serves the two requirements of extremely high-longitudinal holding power and minimum wear / fatigue of the mooring wire. The outer part accommodates a swivel with a built-in shackle for easy fit of the buoy pigtail. The swivel limits the torque effect, which is built up in the mooring wire whilst under tension.
Swivels
MoorLink swivels are supplied in either forged or cast versions. The structural design is thoroughly analyzed by FEM-analysis and allows the swivel to run through a fairlead, chaser ring or over an anchor handler stern roller under high load, avoiding damage to the bearing system or any other swivel part.
The bearing consists of a high-grade, maintenance-free bronze alloy slide bearing, moving over a polished stainless-steel washer. All mooring swivels can be approved by the major certifying authorities.
Buoyancy support
The MoorLink patented wire and chain clamps are specially designed and developed to fit surface or sub-surface buoyancy to mooring wires or chains of any diameter.
Our clamps are cast in a high-grade steel, heat-treated for correct material characteristic and finally machined to fit perfectly. The result is a high-performance system which serves the two requirements of extremely high-longitudinal holding power and minimum wear / fatigue of the mooring wire.
M-link mooring line connectors
The M-Link polyester mooring line connectors consists of two main plates and two main tubular shafts, eliminating the need for having loose and expensive thimbles. The holes in the shafts can also be used for simpler handling during installation and recovery. This means no handling shackles are required.
By introducing the hollow pin design, we have managed to integrate a few advantages that make it a very competitive alternative solution for connecting polyester / composite mooring lines.
Tether systems
MoorLink is a major supplier of tether systems for suspension of free-standing steel hybrid risers in buoyancy cans. In recently completed projects, we comply with the new extended testing requirements made by operators and classification companies.
References
MoorLink have supplied equipment to the following companies, which include:
- Installation solutions:
- Delmar systems
- Transatlantic
- Farstad Shipping
- Bourbon Offshore
- Petrobras
- Solstad Shipping
- Technip Flexi France
- Mobile mooring solutions:
- Atwood Oceanics
- Diamond Offshore Drilling
- Noble Drilling
- Odfjell Drilling
- Pride International
- Transocean Offshore Drilling
- Permanent mooring solutions:
- BP America Production
- Acergy / ExxonMobil
- Samsung Heavy Industries / Exmar
- Technip Brazil / Petrobras
- Technip Finland / Shell
Ekofisk II
The original Ekofisk area development consisted of eight oil and gas fields, namely Cod, Ekofisk, West Ekofisk, Tor, Albuskjell, Eldfisk, Edda and Embla.
Perdido Regional Host Development
The Perdido Regional Host development lies in the Gulf of Mexico, approximately 200 miles south of Freeport (Texas). It
Kizomba Offshore Field Deepwater Project
Kizomba field lies in block 15 offshore Angola, marking one of the first tranches of deepwater acreage offered by the Angolan Government.
PROCAP 2000 Oil Field Project, Campos Basin
Petrobras originally set up the PROCAP 2000 project in order to enable the company to produce oil and gas from offshore fields situated in ultra deep waters (of 1,000m-3,000m), with the aim of incorporating the reserves located at these water depths.
Kerr-McGee Corporation oilfield project
The Janice oilfield is located in the first-round block 30/17a, licence number P032, in the Central North Sea.
Troll West Oil and Gas Field Project
Troll is primarily a gas field, one of the biggest in the North Sea, holding 60% of Norway’s gas reserves.
Åsgard North Sea Northern, Statoil oilfield project
The Åsgard oilfield lies on the Haltenbank in the Norwegian Sea, 200km from Norway and 50km south of Statoil's Heidrun field.
Balder Oil and Gas Field Project, Norway
Balder is located in blocks 25 / 10 and 25 / 11, 165km west of Haugesund, in a water depth of 125m. The field was discovered in 1967, but it was only during the appraisal drilling in 1974 that the major part of the field was discovered.
Conoco and Chevron gas field project
The Britannia field, discovered in the mid 1970s, is the first in the UK sector of the North Sea to be operated jointly
MoorLink Supplies Free Standing Riser Tether Components for Marine Well Containment Company
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Moorlink Delivers and Develops 700mT Swivel
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Tailor Made Mooring Components for the Offshore Market – MoorLink at OTC 2009
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The fourth Ball Swivel set to Transocean Offshore
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P.D.E.T Tether Installed for Petrobras
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MoorLink Solutions AB
Bror Nilssons gata 5
SE-417 55 Gothenburg
Sweden