BRIEF-PGS says Q4 2008 fleet utilisation 77 pct

OSLO Jan 6 (Reuters) - Norwegian seismic surveyor Petroleum Geo-Services (PGS) (PGS.OL) said on Tuesday:

* Its seismic 3D vessel fleet used about 77 percent of its total time to carry out marine contract and multi-client seismic surveys in the fourth quarter of 2008.

* This compares to 80 percent in the third quarter of 2008 and 69 percent in the fourth quarter of 2007.

* The fleet utilisation update comes ahead of fourth-quarter and full-year 2008 results due on Feb. 19.

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(Reporting by Richard Solem)