WE Report

Lessons Learned

Lessons Learned865

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

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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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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DNO
2305 – DNO

 		Borgland Dolphin Logistics
Own Experience		 Operational 2/5-15
Gomez		 P&A 15/09/2021 Missing Protectors for 13-3/8″ Casing

Johan Kjos-Hanssen / Morten Laget



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DNO
2110 – DNO

 		Borgland Dolphin Subsurface
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 Production section 08/09/2021 The results from the pressure test caused some initial confusion regarding if the test was . . .

Øystein Prytz / Stig Seland


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DNO
2109 – DNO

 		Borgland Dolphin Project Management
Own Experience		 Other A-1 H, A-2 H, A-3 HT2
Oselvar		 Other 07/09/2021 Lead drilling engineer did not have admin rights on Oselvar Sharepoint.

Øystein Prytz / Stig Seland



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DNO
2108 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Intermediate section 05/09/2021
The PAB system failed before the cement job due to water ingress inside the unit which caused some . . .

Drilling Supervisor / Morten Laget


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DNO
2107 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Top hole 03/09/2021 Marker buoys too close to the hole, Fell inn and got drilled to bits. ROV use the marker buoys for . . .

Drilling Engineer / Morten Laget


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DNO
2106 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Surface section 31/08/2021
Drilled 12 ¼” hole with Smith XZ616 AxeBlade PDC bit from 1613 m to 2895 m in a vertical hole. . . .

Drilling Supervisor / Morten Laget


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DNO
2099 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Production section 29/08/2021
The NORM instrument was found finally found on the drillfloor, however in an unmarked black . . .

Drilling Engineer / Morten Laget


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DNO
2098 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Surface section 27/08/2021 Unable to set seal assembly after 13 3/8″ hanger was landed. Attempted several times to pressure up . . .

Drilling Supervisor / Morten Laget


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DNO
2093 – DNO

 		Borgland Dolphin Multi Discipline
Own Experience
INTERNAL		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 P&A 23/08/2021 No lessons learnt meetings were held with the offshore team (DSV and DE) during operations.

Øystein Prytz / Stig Seland



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DNO
2094 – DNO

 		Borgland Dolphin Logistics
Own Experience		 Operational 2/5-15
Gomez		 Reservoir section 23/08/2021 Prior to mobilization of 8-1/2″ BHA, Coring and Wireline tools we held a aligmnement meeting to . . .

Johan Kjos-Hanssen


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DNO
2096 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Surface section 22/08/2021 DrilQuip MPT and BOP test tool was sent out without pup joints.

Drilling Supervisor / Morten Laget


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