More LNG-fuelled OSVs for Gulf of Mexico
Wärtsilä has announced a contract to deliver integrated propulsion systems for two additional LNG offshore support vessels (OSVs) to Harvey Gulf International Marine, in addition to the two systems ordered in 2011.
This order takes Harvey Gulf to four LNG OSVs on order, establishing the company as the second largest operator of LNG powered OSVs. Wärtsilä will deliver an integrated system that includes the dual-fuel machinery, electrical and automation package, complete propulsion, and also the LNG fuel storage and gas conditioning system. The LNG storage capacity will provide for more than a week of operational time.
The scope of supply for each of the two latest ships includes: three six-cylinder in-line Wärtsilä 34DF generating sets; two Lips compact steerable thrusters; two Lips transverse thrusters; integrated automation system with power management; complete ‘Low Loss Concept’ power distribution system including switchboards, transformers, power drives, motors and auxiliary equipment; LNGPac (LNG bunkering, storage and supply system); and training.
Wärtsilä says its dual-fuel engine technology allows the same 34DF engine to be operated on either gas or diesel fuel with full US EPA emissions compliance. The company points out that when running in gas mode, the environmental impact is minimised since NOx is reduced by some 85% compared to diesel operation, SOx emissions are completely eliminated as natural gas contains no sulphur, and emissions of CO2 are also reduced. Because LNG has no residuals, production of particulates is practically non-existent.
Harvey Gulf CEO Shane J Guidry, says: "Harvey Gulf's decision to become the leader in clean Gulf of Mexico operations has been enthusiastically accepted by oil company executives, and was the impetus for adding two additional LNG dual-fuel vessels to the fleet. These vessels, like their two sisterships, will meet the highest emission standards that exist today - and even higher standards that haven't been created yet. We recognise the strong stance on environmental protection by the administration in the wake of the oil spill, and are doing our part to respond to it and provide our customers support for their environmental commitments."
"Harvey Gulf's original order of complete integrated solutions from Wärtsilä has facilitated the development of an excellent working relationship between Harvey Gulf, STX USA Marine, Trinity Offshore and Wärtsilä. The challenges of bringing a new technology to the US market are being met effectively, and this strong teamwork between suppliers will ensure that Harvey Gulf is delivered state-of-the-art vessels that provide clean, safe, efficient, reliable and competitive operations. This order for two additional LNG powered vessels further demonstrates that Harvey Gulf is an industry leader and that the move to LNG as a marine fuel in the US has begun," states Pete Jacobs, business development manager, offshore at Wärtsilä North America.
"We are witnessing a true paradigm change, and it's a very exciting time for LNG fuelled vessels in the Gulf of Mexico. Millennia ago the shift was oar to sail, two centuries ago it was sail to steam, a century ago steam to diesel, and now it's a new era for gas. We are pleased to continue as a partner with Harvey Gulf as they reaffirm their commitment by adding more safe and clean LNG fuelled vessels to their modern fleet," adds John Hatley, Vice President Ship Power, Wärtsilä North America.
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