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Pipe-in-pipe insulation system passes tests for reel lay

Journal Article · · Oil and Gas Journal; (United States)
OSTI ID:5355088
 [1]
  1. Esso Australia Ltd., Melbourne (AU)
The first reeled installation of the thermally insulated pipeline system known as pipe-in-pipe (PIP) occurred in development of the Seahorse and Tarwhine fields in Bass Strait, Australia, in 1989. This paper reports that PIP consists of an inner steel pipe coated with high-density polyurethane (HDPU) foam inside an outer steel carrier pipe. The lines are 7 and 10.8 miles, respectively, connecting the Barracouta offshore platform and subsea wellheads at each field location. Prior to the development of PIP, the only available insulation-coating system capable of withstanding the high contact loads associated with reeling were all very expensive. The cost benefits of reeling were therefore reduced for insulated pipelines.
OSTI ID:
5355088
Journal Information:
Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 90:21; ISSN 0030-1388; ISSN OIGJA
Country of Publication:
United States
Language:
English