WE Report

Lessons Learned

Lessons Learned865

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

DNO
1419 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 11/04/2021 We pressure tested the BOP in an untraditional way using a BOP jump tool. This took very long time . . .

Drilling Supervisor / Stig Seland



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DNO
1415 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 10/04/2021 Two fingers have been torn off the protective sleeve/ retainer ring on the SSTT. One finger was . . .

Sturla Jensen / Stig Seland



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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
1417 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 10/04/2021 Heavily bending on Lubricator Umbilical approx 1,5 m from termination head for. Caused by Clamp had . . .

Sturla Jensen / Stig Seland



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DNO
1418 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 10/04/2021
Disconnected BOP.
Inspected top of TH and crown plug.

Sturla Jensen / 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
1400 – DNO

 		Borgland Dolphin Subsea
Own Experience
INTERNAL		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 06/04/2021 Unable to install flushing cap and URF offline, operations had to be done on rig time. Not able to . . .

Øystein Prytz / Stig Seland



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DNO
1396 – DNO

 		Borgland Dolphin Well test
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 05/04/2021 We discussed the option 1) of hanging the entire landings string with Wellsafe Explorer weak links, . . .

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
1394 – DNO

 		Borgland Dolphin Logistics
Own Experience
INTERNAL		 Operational A-3 HT2
Oselvar		 Subsea work 03/04/2021 The POB got maxed out and there were no Covid-19 emergency cabins available at the time. Also, a . . .

Drilling Engineer / Stig Seland



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DNO
1386 – DNO

 		Borgland Dolphin Logistics
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 Subsea 29/03/2021
During operations things got delayed and went missing in the transport route (Aker fuses for . . .

Drilling Engineer / 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
1365 – Wellesley

 		Borgland Dolphin Marine
Own Experience		 Operational 6204/11-3
Schweinsteiger		 Rig move 09/03/2021 Two(2) harbour tugs were contracted by Dolphin Drilling to assist in holding Borgland Dolphin . . .

Stian Engvik / Morten Laget



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DNO
1361 – DNO

 		Borgland Dolphin Marine
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 Prelay 08/03/2021 By using 41deg fluke angles the anchors would not hold the required test tension

Stian Engvik / 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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