vessel news
Farstad PSV complies with chemical tanker requirements
Farstad is to take delivery of what it describes as a “chemical tanker compliant” platform supply vessel (PSV), Far Solitaire, in October. The design of the technologically advanced vessel was developed by Farstad in close co-operation with Rolls-Royce Marine and is the first vessel of its kind ever built. Said Farstad: “Over the years, the offshore oil industry has become more and more dependent on chemicals and noxious liquids in order to improve operational efficiency and maintain safety standards. At the same time, restrictions for offshore disposal of the same have become more stringent for environmental reasons.
“These liquids need to be transported to and from the offshore installations, which needs PSVs fit for this purpose. However, a conventional vessel defined by the rules as a cargo vessel is limited to carrying a maximum 800m3 of these liquids on board at the time, which often is insufficient.
“A few years ago, Farstad Shipping embarked on the task of developing an International Bulk Code (IBC) Chapter 2 compliant PSV for safe transportation and handling of large quantities of noxious liquids. The vessel was developed in close co-operation with Rolls-Royce Marine and the project was supported by class society DNV. “The ground-breaking effort resulted in the UT754WP design, a vessel which is 91.60m in length with a breadth of 22m, cargo deck of 1,020m2 and deadweight 5,700 tonnes. In addition to the special features highlighted above, the UT754WP is a modern, top of the line diesel-electric PSV with all of the equipment one would expect to find on a high-spec PSV.”
Farstad said particular attention had been paid to ensuring the PSV was safe and efficient, had low fuel consumption, low emissions and reduced impact on the environment. The new vessel will be able to transport more than 1,600m3 of noxious liquids and what the company called “great challenges with respect to rules and regulations, among others with respect to damage stability, have been met.” As a result, the layout, tank structure and configuration are quite different to those on a conventional PSV. For safety reasons, all
slop/backload tanks are equipped with H2S detection and alarm.
Another challenge arising as a result of an increased number of chemicals on board at
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Sjoborg named and snapped up by Statoil
P/F Supply Service held the naming ceremony for its Havyard 833 PSV Sjoborg in Bergen in March.
This is the first vessel of this design but it has already proved popular with Statoil snapping it up for a term charter upon delivery in mid-April. Broker Seabrokers said the charter period is for six months firm plus 2 x 6 month options.
Far Solitaire will be delivered in October
the same time, is the segregation of cargo pumps and piping systems to avoid mixing different products. Farstad Shipping has met this need by installation of dedicated deepwell pumps in all of the cargo tanks for noxious products, rather than the conventional solution with common cargo pumps placed in a pump room.
The vessel is also the first PSV with the new Rolls-Royce ‘wave piercing’ bow design which enables the vessel to ‘slice’ or ‘pierce’ through the waves. This greatly reduces slamming, and pitching motions are also reduced. The result, says Rolls- Royce, is enhanced comfort for the crew, with the benefit of better rest and safer work. Due to a more steady speed in all weather conditions, fuel consumption is reduced and the propulsion machinery spends less time working at variable loads.
The use of three main engines in combination with diesel-electric propulsion, a main electric switchboard split into three sections, and three separate thrusters forward give the design several other advantages, including reduced fuel consumption and excellent dynamic positioning performance – an ERN number of 99.99.99.99 has been achieved.
Farstad said that, based on the excellent experience it has had with anchor-handling vessels, it decided to develop a new cargo rail crane concept for UT754WP, which is the first PSV with a dual draglink crane on the starboard side of the cargo rail, covering the full length of the cargo deck. The main advantage of this is an increased working area and the stable horizontal movement. The crane, which is remotely controlled, can be utilised for various tasks, both offshore and alongside in port, easing the work for the deck crew and reducing risk of accidents. The steel hull of the vessel recently arrived from STX OSV Tulcea, Romania. Far Solitaire is currently under outfitting at STX OSV Langsten in Norway.
Swire sells AHTS Ariki Swire Pacific has sold their 1986-built, 102 tonne bollard pull, 8,000 bhp AHTS Pacific Ariki to Northern Oriental Shipping Ltd, Hong Kong. Seabrokers says the vessel has been renamed
Northern Light.
Fugro mobilises Normand Tonjer for North Sea inspection programme Fugro recently mobilised Normand Tonjer for a concentrated inspection programme in the North Sea.
The vessel has been fully equipped by Fugro for several intensive offshore inspection programmes. This includes the inspection of pipelines and structures for Nexan, Centrica and Talisman.
On board are two Tiger observation-class ROVs for dual ROV operations and a Triton XL work-class ROV, fully equipped for pipeline inspection and light intervention. The vessel is further equipped with a built-in Fugro Starfix suite, which provides a ‘satellite to seabed’ completely integrated solution. This industry standard suite provides a complete solution for survey, positioning, real- time ROV digital video, sensor capture and an offline suite; this also allows rapid post processing, digital video review suites and plotting facilities.
Alnmaritec delivers line handling craft to ExxonMobil Alnmaritec in the UK recently delivered a new line handling boat (imaginatively named Esso 131) to Exxon Mobil for operations off a floating production storage and offloading (FPSO) vessel in a production field offshore Angola.
This is the second of the new, larger
Wave Handler design to be built by Alnmaritec and at just over 12m it is 2m longer than the previous Wave Handler boats. It has 1000 bhp of installed power and packs a powerful punch. The unit is fitted with Twin ‘Trakor Jets’ from North American Marine Jets designed specifically to give it an exceptionally high bollard pull for line ›››
Offshore Support Journal I June 2012 I 13
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