SUBSTRUCTURE SINKING MAY DELAY SLEIPNER GAS

New Norwegian gas supplies to continental Europe scheduled for 1993 are uncertain following the sinking off Norway of Den norske stats oljeselskap AS's concrete gravity substructure for East Sleipner field. The 1.3 billion kroner ($194 million) structure, with a displacement of 560,000 metric tons, was undergoing submersion tests by Norwegian Contractors AS when water rushed into one of the four concrete legs. Within minutes the structure sank in 230 m of water.

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