WE Report

Lessons Learned

Lessons Learned865


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

DNO
1158 – DNO

Borgland Dolphin C&P
Experience Transfer Meeting
Planning A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020 A lot of POs and Invoices.

Actions Required for Oselvar: Ensure contract strategy is known within the team
Karina Helle / Morten Laget



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DNO
1159 – DNO

Borgland Dolphin Drilling
Experience Transfer Meeting
Reporting A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020
Reduced operational efficiency due to poor weather.
Developed a method to lay out completion . . .

Actions Required for Oselvar: Plan for lay out of completion tubulars
Secure efficient operations . . .
Karina Helle / Morten Laget



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DNO
1160 – DNO

Borgland Dolphin Multidicipline
Experience Transfer Meeting
Planning A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020
Site visit and good communication.
Good rig-to-platform interface.
High level of support during . . .

Actions Required for Oselvar: Plan for site visits
Interface management
Proper facilitation of . . .
Karina Helle / Morten Laget



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DNO
1161 – DNO

Borgland Dolphin HSEQ
Experience Transfer Meeting
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020 Low reactive safety figures.

Actions Required for Oselvar: Look into a system for follow up of safety performance
Karina Helle / Morten Laget



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DNO
1162 – DNO

Borgland Dolphin Multidicipline
Experience Transfer Meeting
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020
Efficient switch to suspension mode.
Flexibility due to Covid-19.

Actions Required for Oselvar: Prepare for contingencies
Karina Helle / Morten Laget



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DNO
1163 – DNO

Borgland Dolphin Logistics
Experience Transfer Meeting
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020
Experience transfer meeting, Schooner & Ketch: Efficient mibilisation and backload
Minimal best . . .

Karina Helle / Morten Laget



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DNO
1164 – DNO

Borgland Dolphin Multidicipline
Experience Transfer Meeting
Planning A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/09/2020

Actions Required for Oselvar: “- Internal requirements for P&A operations
– DNO’s ability to . . .
Karina Helle / Morten Laget



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Wellesley
483 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Surface section 05/09/2020 Ran MPT tool dressed to pull extended wear bushing. Successfully engaged and sheared out but hung up . . .

Drilling Supervisor


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Wellesley
481 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 03/09/2020
Made up shoe track to maximum torque. On attempting to change torque values in JAM system to optimum . . .

Drilling Supervisor


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Wellesley
476 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 02/09/2020 Due to shallow gas zone at 331m, needed to fill casing with mud to be ready in case of need to wash . . .

Drilling Supervisor


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Wellesley
473 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 01/09/2020 To be able to use it for BHA-handling, a hole was made in the protector.

Drilling Engineer


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Wellesley
474 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 01/09/2020
Hit shallow gas at 331m, only 24m below 36″ conductor shoe. Killed with 1.50 SG kill mud. Drilled . . .

Drilling Supervisor


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Wellesley
475 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 01/09/2020
Hit shallow gas at 331m, only 24m below 36″ conductor shoe. Killed with 1.50 SG kill mud. Drilled . . .

Drilling Supervisor


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Wellesley
466 – Wellesley

Borgland Dolphin Marine Operational 6204/11-3
Schweinsteiger
Rig move 31/08/2020 When work wire and pre-laid mooring line was retrieved after vessel had received rig PCP, . . .

Stian Engvik / Morten Laget



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Wellesley
467 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 31/08/2020 More manual handling and time spent in addition to less efficient handling when not having all BHA . . .

Drilling Engineer


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Wellesley
472 – Wellesley

Borgland Dolphin SmartBlue
INTERNAL
Setup 6204/11-3
Schweinsteiger
Connection 31/08/2020 Unable to adapt to rig-networks subnet

admin


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Wellesley
1318 – Wellesley

Borgland Dolphin Operational 6204/11-3
Schweinsteiger
30/08/2020 Skeiv lasta basket backloaded.


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Wellesley
464 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 27/08/2020 No fill on 36″ hole wiper trip. Ran 30″ conductor, found 1m fill on bottom. Washed to bottom, picked . . .

Drilling Supervisor


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Wellesley
465 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 27/08/2020 Good suggestion from Dolphin not to do this as in past fibreglass tubing has broken due to vibration . . .

Drilling Supervisor


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Wellesley
462 – Wellesley

Borgland Dolphin Drilling Planning 6204/11-3
Schweinsteiger
26/08/2020 To low budget time on rig move

Morten Laget


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