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Subsea, Pipelines & Integrity

Reference topics for line sizing and end-of-life integrity, with cathodic-protection screening subject to qualified inputs and engineering review.

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Analysis topics

  • Wall thickness. Screen a pipeline wall across the design codes (DNV-ST-F101, ASME B31, PD 8010) and get a one-page report.
  • On-bottom stability. Check stability of a subsea line in waves and current (DNV-RP-F109).
  • Free-span / VIV. Screen a free span for vortex-induced vibration and allowable length (DNV-RP-F105).
  • Lateral & upheaval buckling. Check a line for snake buckling under pressure and temperature, and the cover a buried line needs.
  • Fitness-for-service. Assess a corroded line from wall-thickness readings against its design pressure.
  • Cathodic protection (screening). Sacrificial-anode demand and mass screening for offshore structures (DNV-RP-B401) and pipeline bracelet anodes (DNV-RP-F103). Project use requires qualified inputs and an engineer-of-record check; it does not establish that an installed system is protected.

Related standards

Explore the standard and the published capability data.

DNV-ST-F101 DNV-RP-F109 DNV-RP-F105 API 579 DNV-RP-B401 DNV-RP-C203 API RP 2RD / OS-F201 Catenary riser Lateral buckling Upheaval buckling (DNV-RP-F110) ASME B31.4 / B31.8 PD 8010

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