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Equipment

Subsea

Next-gen ROV

enters market

Subsea technology and services firm Triton Group delivered the first of its next-generation remotely operated vehicles (ROVs) to the offshore industry in February. Triton also announced a further contract for the Triton XLR in deals totalling £3.8million (US$5.6 million). Group company Perry Slingsby Systems (PSS) has

completed work on the first of the custom-built XLRs to Romanian client Grup Servicii Petroliere (GSP) for immediate deployment in offshore Russia. Te news came as PSS announced a second contract win

that will see it provide a system to Technocean with delivery in June 2010. Te Aberdeen-headquartered group announced the deals during Subsea 2010, Europe’s biggest two-day subsea conference and exhibition, held in February. The XLR is the latest evolution of the successful

Triton series and ‘baby brother’ to the heavy-duty XLX. Designed and manufactured by PSS, the 125HP vehicle has been designed for drill and light construction work and incorporates the latest controls technology, the revolutionary ICE Integrated real-time Control Engine, intuitive graphic user interface and ergonomic pilot control consoles with touch screen technology. “Te XLR is the next step in the evolution of subsea

systems which started with the XL. Our aim was to create an innovative system which offers the utmost in efficiency and reliability for the lightweight end of the market,” said Rory Satterfield, vice-president of Products Division, Triton Group. “A key element in its success is its compatibility with the

XLX and other vehicles which allow subsea operators to be fully flexible in the scope of jobs they can undertake and cross utilise various parts such as thrusters, umbilicals, cameras and valve packs. “Each of these systems is built to order to feature a range

of components tailored specifically to meet the needs of our customers who operate in some of the most challenging and demanding environments. “The new acquisition will be installed onboard GSP

Prince, the geotechnical and diving / ROV support vessel which entered the company fleet in September 2009,” said Fanel Hahui, GSP’s chief executive officer. “We have at the moment firm employment both for the

vessel and the subsea equipment, including the custom- built Triton XLR ROV in two of our offshore construction projects, Galata and Olympia. We’ll also use the Triton XLR ROV in subsea operations carried out under the TPAO contract, the vessel’s operation being at the moment under review for this contract.” Te GSP vehicle is rated to 2000m with 125hp and comes

with an extended-length tether management system that is compatible with either the XLR or XLX.

Offshore Marine Technology 2nd Quarter 2010

Te Technocean vehicle is rated to 3000m and will be

delivered with a tether management system complete with DNV-rated power system and specific tooling skid.

Safety

LEDs light the way

on drilling rig

In the first installation of its kind, light emitting diode- (LED) based illumination has been retro-fitted on a drilling rig of a major oil and natural gas producer. US-based Dialight’s SafeSite illumination fixture was selected for this particular test installation as it has been specially designed to operate in harsh environments such as drilling rigs, where vibration is the major cause of failure for traditional light sources such as metal halide and high-pressure sodium. As a rugged, solid-state device with a very robust housing,

designed to UL class I division 2 standards, it is virtually impervious to shock and vibration, making expensive and highly hazardous re-lamping a thing of the past not only for rigs, but also for oil platforms, shipyards, refineries and other hazardous locations. Switching to LED lighting from conventional

incandescent light bulbs, high intensity discharge (HID) or fluorescent lighting can bring real safety benefits for the offshore world, as well as radically reducing the need for maintenance while increasing energy efficiency. SafeSite, requires no maintenance and is warranted for at least five years. Safety for maintenance workers is a key issue in any

oil and gas environment, so the LED’s long lifespan reduces the exposure risk associated with traditional lamp and ballast replacement. Teir low voltage and low operating temperatures also make them much safer for use in combustible atmospheres, as well as in extreme temperatures or in wet-wash locations where conventional lamps would shatter under sudden temperature changes. Tese T4- and T5-rated LEDs have ‘instant-on’ ability,

unlike HID lights which can take a while to warm up when switched on. Teir ability to achieve full brightness in a fraction of a second makes them ideal as safety lights in low traffic areas where they can be leſt off or dimmed and triggered to come on by proximity switches. Being semiconductor-based they are built for frequent

switching off and on, unlike HID and fluorescent lights, so there is no need for perpetual 24/7 lighting. Tis ability to turn the LEDs off when there is no need for artificial lighting makes them ideal for integrating with energy saving controls and also substantially extends their lifespan. “The drilling rig owner is already extremely happy

with this test installation,” said Rizwan Ahmad, Dialight’s hazardous location lighting product manager, “and we’re getting plenty of enquiries for more, so it’s clear that customers can see the real benefits that SafeSite can bring to the offshore environment.” OMT

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