LISBON, Feb 22 (Reuters) - Heavy tug boats on Tuesday sprayed water on a ship off the coast of Portugal's Azore Islands which went on fire nearly a week ago carrying thousands of Porsches and Bentleys, an incident insurance experts said could result in $155 million in losses. The 22 crew members on board the ship, called the Felicity Ace, were evacuated the same day the fire broke out. Two large tug boats equipped with firefighting gear arrived from Gibraltar on Monday, and were working with another patrol boat to spray water at the Felicity Ace and cool it down, MOL said. "When conditions are safe the salvage team will board the Felicity Ace for an initial assessment," MOL added. Two other tug boats with more firefighting equipment were scheduled to arrive Feb. 23 and Feb. 26.

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