Rick Wilkinson
OGJ Correspondent

MELBOURNE, June 13 -- Marine services company TSMarine has completed the first phase of a rigless intervention operation at Woodside Energy's Vincent field heavy-oil project off Western Australia.

The company's Havila Harmony monohull vessel deployed, installed, and tested seven subsea trees and carried out wireline operations on each well. It is the first rigless intervention job carried out in the Asia Pacific region, the company said.

The vessel was operating in 372 m of water.

TSMarine said the successful operation was the culmination of more than 2 years of planning and engineering working in collaboration with Woodside.

Vincent field on permit WA-28-L was found in 1998 and is estimated to contain 73 million boe. It is expected to come on stream later this year.

Woodside holsa 60% interest in the prospect and Mitsui E7P Australia the remaining 40%.