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Temporary Mooring

Campaign moorings for MODUs, flotels, construction and pipelay vessels.

Class B
MODU
Campaign
Mooring
Watch circle

What this expert provides

The Temporary Mooring expert specifies the site-specific mooring of mobile units for a campaign: semi-submersible and drillship MODUs, flotels, construction and crane vessels, pipelay and anchor-spread barges, temporary storage and pre-laid moorings.

Expert Profile

Sets the pattern, line lengths and pay-out, pretension, anchor type, pre-laid versus rig-deployed anchors and thruster assistance, then runs a quasi-static multi-line analysis. Offset against the operational watch circles usually governs, so it is reported first. Follows API RP 2SK, DNV-OS-E301 and ISO 19901-7 and coastal-state rules where they apply.

Key Capabilities

  • Pattern, line length, pay-out and pretension
  • Justified campaign return period
  • Intact and one-line-removed offsets against the watch circle
  • Proximity to pipelines, wellheads and cables
  • Anchor running, proof tensioning and chain condition