WE Report

Lessons Learned

Lessons Learned865


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

Wellesley
5123 – Wellesley

Deepsea Yantai Drilling Operational 35/10-10S
Carmen
Surface section 09/04/2023 The centralizers was placed close to the bottom of the casing joint and was difficult to handle on . . .

Drilling Engineer / Morten Laget


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DEA
5072 – DEA

No Rig HSEQ
Own Experience
INTERNAL
No well N/A 17/02/2023
Feedback:
– Likte rebusløpet veldig godt. Samme med Quiz, men kanskje ha den litt kortere. Og . . .

Karina Helle / Anniken Meisler


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Wellesley
4960 – Wellesley

Borgland Dolphin Logistics
Own Experience
End of Well 36/1-4
Hemispheres
Other 14/12/2022 Sevaral months after end of operation personnel on Saga Fjordbase found a full mudskip left after . . .

Johan Kjos-Hanssen / Morten Laget



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INEOS
4952 – INEOS

No Rig Logistics
NEA Q&A
Planning No well Surface section 07/11/2022

test- Kan du slette denne Daniel?

Karina Helle / Tommy Johnsen


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PGNiG
4946 – PGNiG

Deepsea Yantai Drilling
Experience Transfer Meeting
Operational 6608/1-1 S
Copernicus
Production section 03/11/2022
The gas readings for the 12 ¼” was done very well, and the correlation was quite good between the . . .

Richard Mollison



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PGNiG
4914 – PGNiG

Deepsea Yantai HSEQ
Own Experience
INTERNAL
End of Well 6608/1-1 S
Copernicus
Other 26/09/2022 We didn’t ask of information from the DSV during the operation

Åse Kristin Pettersen / Morten Laget


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PGNiG
4912 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Production section 20/09/2022 Time was spend circulating hole clean and even MW in/out.

Drilling Engineer / Morten Laget


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PGNiG
4907 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
17/09/2022 During bulking the boat was alongside and was covered in dust

Drilling Engineer / Morten Laget


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PGNiG
4905 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
P&A 16/09/2022 To balanced the cement plug by pumping more spacer behind the cement plug.

Drilling Engineer / Morten Laget


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PGNiG
4902 – PGNiG

Deepsea Yantai Logistics Operational 6608/1-1 S
Copernicus
Top hole 15/09/2022 It was sent out personell who had not been on the rig before and was not experienced with the . . .

Drilling Engineer / Morten Laget


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PGNiG
4903 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Top hole 15/09/2022 Enhanced and ROV had to be on same channel as drillfloor when doing offline activity due to repeater . . .

Drilling Engineer / Morten Laget


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PGNiG
4904 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 15/09/2022 The cement swivel was delivered with the wrong threads. Delivered with NC50, should been XT57.

Drilling Engineer / Morten Laget


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PGNiG
4950 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 15/09/2022 The box end of the 13 3/8″ no cross coupling is too long to allow the use of the casing running tool . . .

Richard Mollison


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PGNiG
4901 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
P&A 14/09/2022 The heating cabinet in the logging unit does not work as required, not able to change the . . .

Drilling Engineer / Morten Laget


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PGNiG
4846 – PGNiG

Deepsea Yantai Logistics Operational 6608/1-1 S
Copernicus
Reservoir section 12/09/2022 The BU GVR MWD tool for 8 1/2″ section not at site when drilling the section. The near bit . . .

Drilling Engineer / Morten Laget


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PGNiG
4845 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Production section 11/09/2022 Ran casing hanger through rotary and installed master bushing. Difficult to install due to short . . .

Drilling Engineer / Morten Laget


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PGNiG
4834 – PGNiG

Deepsea Yantai Drilling
Own Experience
Planning 6608/1-1 S
Copernicus
Other 04/09/2022 When running of 20″ x 13 3/8″ casing was planned to be on Sunday 4/9/22 we tried to get surge . . .

Drilling Engineer / Morten Laget


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PGNiG
4835 – PGNiG

Deepsea Yantai Drilling
Own Experience
Operational 6608/1-1 S
Copernicus
Surface section 04/09/2022
When the rig reached a TD of 1100 m and no contingency 4-string design was needed anymore, the 20″ . . .

Drilling Engineer / Morten Laget


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PGNiG
4841 – PGNiG

Deepsea Yantai Drilling
Own Experience
Operational 6608/1-1 S Intermediate section 04/09/2022 Had to switch to a BX elevator

Drilling Engineer / Morten Laget


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PGNiG
4831 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
29/08/2022 When the conductor was lowered to the seabed it was realised that a blanking plate from the Wellhead . . .

Phil Hardy / Morten Laget


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