WE Report

Lessons Learned

Lessons Learned865


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

PGNiG
4947 – PGNiG

Deepsea Yantai HSEQ
Own Experience
Planning 6608/1-1 S
Copernicus
26/08/2022

/ Ã…se Kristin Pettersen



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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
3246 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
P&A 29/01/2022
Cement plug was pumped without incident, POOH through cement was without incident. Circulated clean . . .

Drilling Supervisor / Morten Laget



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Wellesley
4487 – Wellesley

Borgland Dolphin Logistics
Own Experience
Planning 36/1-4
Hemispheres
Other 15/01/2022 Another operator with the same rig chooses other vessels for a short well. Rig IDC, PSV’s not IDC . . .

Johan Kjos-Hanssen / Morten Laget



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Wellesley
2401 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Production section 30/12/2021 ALL mud skips was put on the same boat, effectively removing any hope for recieving backload on said . . .

Drilling Engineer / Morten Laget


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Wellesley
2347 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
Top hole 28/12/2021
Saga Fjordbase took the 75ft riser joint and backloaded in addition to the 30″ conductor joints. The . . .

Drilling Engineer / Morten Laget


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Wellesley
2346 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
WELS/Kabal software 27/12/2021
Dolphin HR-personnel booked and moved people in WELS, then they confirmed them in WELS also, in . . .

Drilling Engineer / Morten Laget


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Wellesley
2326 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
Top hole 26/12/2021 The base and boat backloaded the primary and secondary 18 3/4″ WHHs instead of two 30″ conductor . . .

Drilling Engineer / Morten Laget


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Wellesley
2325 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Top hole 24/12/2021
The deck-crew on days started to lay out slick joints in one bay before a crew change happened in . . .

Drilling Engineer / 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
2316 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Production section 09/12/2021 Extremeley slow drilling. At worst it was down to 1-2m/hr. At best it was 9-12m/hr.

Steinar Aarnes / Morten Laget


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INEOS
2319 – INEOS

Borgland Dolphin Drilling
Own Experience
Planning 6306/3-1 S
Fat Canyon
Top hole 09/12/2021
Encountered several shallow gas zones. The decision to use and mobilize foam cement took some . . .

Steinar Aarnes / 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
2302 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Production section 10/11/2021 Went down with 9 5/8″ cutters and cut the casing, observed 75 bar pressure drop and torque drop to . . .

Drilling Engineer / Morten Laget


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INEOS
2300 – INEOS

Borgland Dolphin Drilling
Own Experience
Planning 6306/3-1 S
Fat Canyon
Intermediate section 09/11/2021
Initial planned centralizer program of using 1 centralizer every other joint above shoetrack to top . . .

Drilling Supervisor / Morten Laget


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INEOS
2276 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Intermediate section 07/11/2021 Decided to use the Franks casing circulating tool FA-1

Drilling Supervisor / 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
2275 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Intermediate section 06/11/2021 Had two bit trips with very low, down to 1 m/hr ROP

Drilling Supervisor / Morten Laget


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