WE Report

Lessons Learned

Lessons Learned865

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

DNO
1416 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 10/04/2021 Had only 1 Dolphin sub sea engineer. He had to work overtime, and OIM had to make deviation. . . .

Drilling Supervisor / Stig Seland



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DNO
1413 – DNO

 		Borgland Dolphin Drilling
Own Experience
INTERNAL		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 08/04/2021 Difficult to find the relevant risks in a very comprehensive risk register

Anniken Meisler / Anniken Meisler


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DNO
1399 – DNO

 		Borgland Dolphin Drilling
Own Experience
INTERNAL		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 06/04/2021 Mail sent to IDS 15.03.21 (Monday) with set up requirements including feedback from DNO. No progress . . .

Øystein Prytz / Stig Seland



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DNO
1397 – DNO

 		Borgland Dolphin Drilling Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 05/04/2021 The DOPs was in the best intention written very detailed, with exact description of many small . . .

Drilling Supervisor / Stig Seland



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DNO
1395 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 04/04/2021 Landing string got stuck after pulling 7 m. Possible stuck with SSTT at marine riser flex joint, OR . . .

Drilling Supervisor / Stig Seland



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DNO
1376 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 27/03/2021 A lot of changes in start of the operation. Change of document name, change of specific lines, . . .

Drilling Engineer / Stig Seland



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DNO
1374 – DNO

 		Borgland Dolphin Drilling
Own Experience
INTERNAL		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 Other 19/03/2021
Extremely time-consuming compared to what we get in return. Render design (or just Pia . . .

Steinar Aarnes / Morten Laget


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Wellesley
1358 – Wellesley

 		Borgland Dolphin Drilling
Own Experience
INTERNAL		 Planning 36/1-4
Hemispheres		 Top hole 04/03/2021 Multiple requests for data raised during the creation of the model. The data requests were often . . .

Giacomo Bonomo / Morten Laget


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DNO
1244 – DNO

 		Borgland Dolphin Drilling
PSA Q&A		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 31/01/2021

o Hva er back-up løsning ved manglende sement bak casing ?

Karina Helle / Morten Laget



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DNO
1245 – DNO

 		Borgland Dolphin Drilling
PSA Q&A		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 31/01/2021

o Hvordan verifiseres sement bak casing for “open hole to surface plug”?

Karina Helle / Morten Laget



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DNO
1246 – DNO

 		Borgland Dolphin Drilling
PSA Q&A		 Other A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 31/01/2021

Fra møte i september ber vi om en oppfølging av følgende aksjoner:

Actions
Based on feedback and . . .

Karina Helle / Morten Laget


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DNO
1247 – DNO

 		Borgland Dolphin Drilling
PSA Q&A		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 31/01/2021

Recommend establishing plans for handling possible trapped gas in Oselvar wells when opening the . . .

Karina Helle / Morten Laget


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DNO
1248 – DNO

 		Borgland Dolphin Drilling
PSA Q&A		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 31/01/2021

Review historical documentation regarding “Baseline Survey” performed by DONG (previous operator) . . .

Karina Helle / Morten Laget


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DNO
972 – DNO

 		No Rig Drilling
INTERNAL		 Planning No well
Gomez		 N/A 17/10/2020 No kickoff or handover to the Well Management team.

Morten Laget


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Wellesley
552 – Wellesley

 		Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger		 P&A 21/09/2020
Ran through BOP while jetting from top of BOP and landed out on top of wear bushing without hanging . . .

Drilling Supervisor


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Wellesley
553 – Wellesley

 		Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger		 P&A 21/09/2020
Re-dressed DQ MPT tool after retrieving 9 5/8″ wear bushing. RIH and jetted through BOP at high rate . . .

Drilling Supervisor


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Wellesley
554 – Wellesley

 		Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger		 Top hole 21/09/2020
Not able to load barite due to long transfer lines when loading on starboard side.
Bentonite ended . . .

Drilling Supervisor


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Wellesley
555 – Wellesley

 		Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger		 Top hole 21/09/2020 Took onboard 90 m3 ready mixed kill mud in Stolsfjorden

Drilling Supervisor


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Wellesley
519 – Wellesley

 		Borgland Dolphin Drilling Planning 6204/11-3
Schweinsteiger		 P&A 17/09/2020 Evaluated if joining the Rig Chase Campaign would be beneficial compared to the original plan using . . .

Elisabeth Vik


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DNO
1155 – DNO

 		Borgland Dolphin Drilling
Experience Transfer Meeting		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 N/A 08/09/2020
Initial engineering not completed before select phase started.
Several several MoCs.

Actions for Oselvar: “Secure alignement in the project.
Use the project meetings to aligne
Set . . .
Karina Helle / Morten Laget



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