WE Report

Lessons Learned

Lessons Learned865


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

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
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
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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INEOS
2205 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Pre-Lay 06/10/2021 Spud BHA was loaded at Gomez location but not the conductor. Result was that conductor could not be . . .

Drilling Supervisor / Morten Laget


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INEOS
2206 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational 6306/3-1 S
Fat Canyon
Top hole 06/10/2021 9 7/8″ pilot hole BHA received before spud but 17 1/2″ followed later. Had spudded well before 17 . . .

Drilling Supervisor / Morten Laget


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INEOS
2207 – INEOS

Borgland Dolphin Drilling
Own Experience
Planning 6306/3-1 S
Fat Canyon
Top hole 06/10/2021 We found shallow gas, and suddenly had to rely on surface equipment (iBOPs on the DDM) as a second . . .

Drilling Supervisor / Morten Laget


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INEOS
2208 – INEOS

Borgland Dolphin Drilling
Own Experience
Planning 6306/3-1 S
Fat Canyon
Top hole 06/10/2021 Hit shallow gas on drilling pilot hole.

Drilling Supervisor / Morten Laget


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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
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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