WE Report

Lessons Learned

Lessons Learned865


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

Wellesley
5116 – Wellesley

Deepsea Yantai Drilling Operational Eirik (OMV) Reservoir section 30/03/2023
Change of slips due to damage of pump in sub connection.
Due to the low ROP the pump in sub side . . .

Sander Schaathun / Morten Laget


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PGNiG
4946 – PGNiG

Deepsea Yantai Drilling
Experience Transfer Meeting
Operational 6608/1-1 S
Copernicus
Production section 03/11/2022
The gas readings for the 12 ¼” was done very well, and the correlation was quite good between the . . .

Richard Mollison



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PGNiG
4951 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1
Copernicus
N/A 26/09/2022 The Electrician was called and he found a loose wire (norwegian: fase) inside one of the . . .

Steinar Aarnes



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PGNiG
4909 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Top hole 19/09/2022 The SMO level sensor did not function in auto operation. Was operated manually. Enhanced made a . . .

Drilling Engineer / Morten Laget


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PGNiG
4950 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 15/09/2022 The box end of the 13 3/8″ no cross coupling is too long to allow the use of the casing running tool . . .

Richard Mollison


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PGNiG
4846 – PGNiG

Deepsea Yantai Logistics Operational 6608/1-1 S
Copernicus
Reservoir section 12/09/2022 The BU GVR MWD tool for 8 1/2″ section not at site when drilling the section. The near bit . . .

Drilling Engineer / Morten Laget


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PGNiG
4835 – PGNiG

Deepsea Yantai Drilling
Own Experience
Operational 6608/1-1 S
Copernicus
Surface section 04/09/2022
When the rig reached a TD of 1100 m and no contingency 4-string design was needed anymore, the 20″ . . .

Drilling Engineer / Morten Laget


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PGNiG
4765 – PGNiG

Deepsea Yantai Drilling
Own Experience
Planning Copernicus Surface section 23/08/2022 The use of normal HWDP Requires double handling from fingerboard to well center when running and . . .

Richard Mollison / Morten Laget


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Wellesley
3373 – Wellesley

Borgland Dolphin Marine
Own Experience
Operational 36/1-4
Hemispheres
Rig move 18/02/2022 Uncontrolled runout of anchor and chain

Stian Engvik / Morten Laget



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Wellesley
2409 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Top hole 01/01/2022 When making up 18 3/4″ WHH to No Cross joint it was very tight clearance for upper and lower jaws to . . .

Drilling Supervisor / Morten Laget


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Wellesley
2322 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
Top hole 23/12/2021
It was observed in the manifest that the connection on the 13 3/8″ swages was Vam21, in addition to . . .

Drilling Engineer / Morten Laget


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INEOS
2303 – INEOS

Borgland Dolphin Logistics
Own Experience
Operational 6306/3-1 S
Fat Canyon
Production section 14/11/2021 The BHA was sent from Stavanger to Kristiansund, and after screening the loadout list from . . .

Drilling Engineer / Morten Laget


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INEOS
2277 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Intermediate section 07/11/2021 It took 4,25 hrs to rig it up on Borgland Dolphin. The rigging up of casing tong and FMS slips . . .

Drilling Supervisor / Morten Laget


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INEOS
2278 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Intermediate section 07/11/2021 We had several faults on the Franks equipment. This led to troubleshooting, phone calls to town, . . .

Drilling Supervisor / Morten Laget


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INEOS
2279 – INEOS

Borgland Dolphin Drilling
Own Experience
Planning 6306/3-1 S
Fat Canyon
Intermediate section 07/11/2021 9 5/8″ float shoe filled up with mud.

Drilling Supervisor / Morten Laget


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INEOS
2210 – INEOS

Borgland Dolphin Drilling
Own Experience
Planning 6306/3-1 S
Fat Canyon
Top hole 07/10/2021 The MWD/LWD SLB engineer started working and programming the BHA but sturggled to program it. It was . . .

Drilling Engineer / Morten Laget


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INEOS
2212 – INEOS

Borgland Dolphin Logistics
Own Experience
Operational 6306/3-1 S
Fat Canyon
Top hole 07/10/2021 The container that contained swivels and HP Filterunit on the manifest was opened on the rig, but . . .

Drilling Engineer / Morten Laget


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DNO
2194 – DNO

Borgland Dolphin Wireline / Slickline
Own Experience
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
P&A 04/10/2021 Due to the missing clamps the control lines was coiled up around the tubing and made it impossible . . .

Lars Solvang / Stig Seland



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DNO
2197 – DNO

Borgland Dolphin Wireline / Slickline
Own Experience
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
P&A 04/10/2021 Deep set plug failed during pressure test.

Lars Solvang / Stig Seland


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DNO
2199 – DNO

Borgland Dolphin Bleed of package
Own Experience
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
P&A 04/10/2021 Hydrocarbons contamination required a bleed off package to be installed.

Lars Solvang / Stig Seland



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