WE Report

Lessons Learned

Lesson Learned





By: Sanne Risbakk

Report No.

4827

Discipline/Origin

Marine
PSA Q&A

Well

6608/1-1No well selected

Date created

2022/08/25
1199 days ago

Project Phase

Planning
Project Phase

LL Type/Classification

Planning
Other

Deepsea Yantai


Question

At which combinations of significant wave height and period should one, according to the operation manual, switch to survival draft? ​

Answer

De-ballasting to survival draft is situation dependent and will vary of which of the limits met first. Detailed procedures would be captured in the WSOG, OTG limitations and document, Design Criteria Operational Limitations, doc no L4-MODU-DSY-E-MA-302, rev3, dated 15.11.2021.​

This document includes the table “Limitations for operating draught 21m” in the same document where limitations are illustrated by curves in the table.​

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