Lessons Learned749

Operator Rig Discipline / Origin Project Phase Well Section Date What Happened
Wellesley 258 – Wellesley Transocean Arctic Drilling Operational 35/4-2
Songesand
Reservoir section 16/06/2020 The mud engineer made a good displacement plan for displacing the well from SW to 1.25 sg mud. The . . .
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PGNiG 373 – PGNiG Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek
Reservoir section 22/10/2019 Odfjell changing out parts of Management (TSL, DSL, OIM) to attend 3 day leadership seminar onshore. . . .
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Wellesley 211 – Wellesley Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 The pump strokes and volume pumped (from pit sensors) matched very well from 0-83 m3 mud pumped . . .
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Wellesley 213 – Wellesley Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 Trip sheet from Geoservice and Transocean has shown different numbers. In addition, gains have been . . .
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Wellesley 214 – Wellesley Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Reservoir section 07/02/2019 Investigated two sensor systems in TT.
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Wellesley 201 – Wellesley Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 05/02/2019 Tried to shear OBM mud in pits before drilling the 12 1/4″ section. At this time the well and all . . .
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Wellesley 202 – Wellesley Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
N/A 05/02/2019 Operating with 5 deck crew, as specified in the contract, does not allow for utilizing two deck . . .
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Wellesley 203 – Wellesley Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
N/A 05/02/2019 Column tank ST3 which was previously used for brine storage has within the last two years been . . .
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DNO 329 – DNO Island Innovator Drilling Planning 6507/7-16 S
Canela
P&A 07/01/2019 During M/U of 20″x36″ cutting assembly (MOST tool), had to break off MOST tool above space out pup . . .
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