WE Report

Lessons Learned

Lessons Learned865

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

DNO
2200 – DNO

 		Borgland Dolphin Bleed of package
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 04/10/2021 The wireline plug failed and a backup had to be run.

Lars Solvang / Stig Seland



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DNO
2201 – DNO

 		Borgland Dolphin Completion
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 04/10/2021 Clamps holding the control lines (polyoil clamps) had disintegrated.

Lars Solvang / Stig Seland



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DNO
2202 – DNO

 		Borgland Dolphin Completion
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 04/10/2021 Clamps holding the control lines (polyoil clamps) had disintegrated. Tubing had to be cut after it . . .

Lars Solvang / Stig Seland



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DNO
2203 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 04/10/2021
The point load on the boat deck was higher than allowed and 4 x 1m2 steal plates was needed under . . .

Lars Solvang / Stig Seland



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INEOS
1530 – INEOS

 		Borgland Dolphin Drilling
Own Experience		 Operational PL937
Fat Canyon		 N/A 02/10/2021 Difficulty accessing BHA drawings on SharePoint during rig move due to poor internet connection.

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INEOS
3405 – INEOS

 		Borgland Dolphin Drilling
Own Experience		 Operational PL937
Fat Canyon		 Top hole 02/10/2021
A 30 m3 viscous freshwater spacer was pumped ahead of the cement to avoid contamination from sea . . .

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INEOS
1529 – INEOS

 		Borgland Dolphin Drilling
Own Experience		 Operational PL937
Fat Canyon		 Top hole 01/10/2021 The conductor tally was not ready until last minute, and this created stress for the offshore . . .

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DNO
2172 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 As planned

Lars Solvang / Stig Seland



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DNO
2173 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 Weight of the black eagle hose will make alignment to the manifold flushing cap difficult.

Lars Solvang / Stig Seland



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DNO
2174 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 Extraction stopped as the hub was secured with wire bracing. These had to be cut before operation . . .

Lars Solvang / Stig Seland



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DNO
2188 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 As planned

Lars Solvang / Stig Seland



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DNO
2189 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 Two lubricator valves installed in the landing string.

Lars Solvang / Stig Seland



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DNO
2190 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Planning A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 As planned

Lars Solvang / Stig Seland



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DNO
2191 – DNO

 		Borgland Dolphin Subsea
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 Pulled landing string and run a tubing hanger running tool on drill pipe. Pull the completion with . . .

Lars Solvang / Stig Seland



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DNO
2192 – DNO

 		Borgland Dolphin Wireline / Slickline
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 01/10/2021 Pulling HXT crown plugs with slickline using a mechanical jar was not successful. Changed out to a . . .

Lars Solvang / Stig Seland



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INEOS
3403 – INEOS

 		Borgland Dolphin Drilling
Own Experience		 Operational PL937
Fat Canyon		 Top hole 01/10/2021 Pilot Hole BHA was missed when boat went out from KSU. This was detected by DE offshore when he . . .


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INEOS
3406 – INEOS

 		Borgland Dolphin Logistics
Own Experience		 Operational PL937
Fat Canyon		 Rig move 01/10/2021 Realised that a crossover for the Hole Opener on the 36″x 42″ BHA was missing.

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INEOS
3404 – INEOS

 		Borgland Dolphin Rig Intake
Own Experience		 Operational PL937
Fat Canyon		 N/A 29/09/2021 Continuation of key personnel offshore (DSV, DE, services companies)


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INEOS
2164 – INEOS

 		Borgland Dolphin Logistics
Own Experience		 Operational PL937
Fat Canyon		 Top hole 25/09/2021 Equipment was not loaded onto rig when rig was moored at Gomez well location. Offloading supply . . .

Drilling Supervisor / Morten Laget


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DNO
2130 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 P&A 19/09/2021 1 hr extra rig time was unnecessarily spent to make up x-over to the RT before it could be made up . . .

Drilling Supervisor / Morten Laget


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