Pipeline end-sled design for gulf lateral sets several benchmarks

07/30/2001
Installation in 1999 of Discovery Producer Services LLC's Green Canyon Block 209 lateral in the Gulf of Mexico represented several important achievements.Among them were:The deepest gulf use of double-submerged-arc welded line pipe.To date, the largest and highest pressure rated diverless connectors (16-in. and 12-in. ANSI 1500 class).Establishment of a dual-diameter expandable and piggable deepwater natural gas transmission system.The successful use of large diameter, high-pressure diverless connectors will assist establishing future pipeline transmission infrastructure beyond the continental shelf.The primary focus of this article is on design, fabrication, testing, and installation...
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