Integrated pipeline umbilical

Another form of umbilical is an IPU, consisting of a combination of one or more production and/or injection lines and/or various service lines, hydraulic lines, electrical and/or fibre optic cables, etc. An IPU differs from a traditional multicore umbilical in that it incorporates a relatively large-bore service or production line.

Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global Standards

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