WE Report

Lessons Learned

Lessons Learned865


Operator Rig Discipline / Origin Project Phase Well Section Date What Happened

PGNiG
6747 – PGNiG

Deepsea Yantai Marine
Own Experience
Operational 6501/10-1
Tomcat
Pre-Lay 15/09/2024
We started on anchor 4. This anchor was together with anchor 5 and 6 supposed to be installed to . . .

Stian Engvik / Stig Seland


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PGNiG
4842 – PGNiG

Deepsea Yantai Marine
Own Experience
Operational 6608/1-1 S
Copernicus
Rig move 09/09/2022 Marine reps identified possibility to start transit 2hrs before de-ballasting was completed. This . . .

Stian Engvik / Morten Laget


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PGNiG
4843 – PGNiG

Deepsea Yantai Marine
Own Experience
Operational 6608/1-1 S
Copernicus
Rig move 09/09/2022 Bridge and marine reps was not informed from DSV or DE when required spud equipment was taken . . .

Stian Engvik / Morten Laget


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PGNiG
4844 – PGNiG

Deepsea Yantai Marine
Own Experience
Operational 6608/1-1 S
Copernicus
Top hole 09/09/2022
Everything went according to plan and logging was done remotely. Final position report was delivered . . .

Stian Engvik / Morten Laget


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PGNiG
4830 – PGNiG

Deepsea Yantai Marine
Own Experience
Operational 6608/1-1 S
Copernicus
Rig move 29/08/2022 All tubulars were backloaded from the rig and mud and bulk tanks emptied. The rig was deballasted to . . .

Phil Hardy / Morten Laget


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PGNiG
4823 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

The question of how the operator (PGNiG) ensures that the site-specific
criteria set for . . .

Sanne Risbakk / Morten Laget



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PGNiG
4824 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

How are the weather conditions monitored ?​

Sanne Risbakk / Morten Laget



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PGNiG
4825 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

It is sometimes run with reduced power from auxiliary engines for operation of the DP to save fuel. . . .

Sanne Risbakk / Morten Laget



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PGNiG
4826 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

Is there a permanent or site-specific approval from DNV with regard to waves in deck for survival . . .

Sanne Risbakk / Morten Laget



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PGNiG
4827 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

At which combinations of significant wave height and period should one, according to the operation . . .

Sanne Risbakk / Morten Laget



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PGNiG
4828 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

How is the wave height measured at the location?​

Sanne Risbakk / Morten Laget



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PGNiG
4829 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 S
Copernicus
Other 25/08/2022

Are there site-specific measurements of waves that make you know when to change draft?

Sanne Risbakk / Morten Laget



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PGNiG
4763 – PGNiG

Deepsea Yantai Marine
Own Experience
Planning Copernicus Rig move 23/08/2022 Mooring analysis was requested at an early stage of the planning fase, but was not taken into . . .

Stian Engvik / Morten Laget


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