WE Report

Lessons Learned

Lessons Learned865

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

INEOS
2272 – INEOS

 		Borgland Dolphin Logistics
Own Experience		 Operational 6306/3-1 S
Fat Canyon		 Production section 04/11/2021 SLB D&M sends out several 8ft containers only filled with for examples batteries. One therefore . . .

Drilling Engineer / Morten Laget


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DNO
2110 – DNO

 		Borgland Dolphin Subsurface
Own Experience		 Operational A-1 H, A-2 H, A-3 HT2
Oselvar		 Production section 08/09/2021 The results from the pressure test caused some initial confusion regarding if the test was . . .

Øystein Prytz / Stig Seland


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DNO
2099 – DNO

 		Borgland Dolphin Drilling
Own Experience		 Operational 2/5-15
Gomez		 Production section 29/08/2021
The NORM instrument was found finally found on the drillfloor, however in an unmarked black . . .

Drilling Engineer / Morten Laget


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Wellesley
234 – Wellesley

 		Transocean Arctic Drilling Operational 35/11-21 S
Grosbeak West		 Production section 16/06/2020 Good experience M/U 9 5/8″ VAM21 CWD2 joint with drilling bails rather than longer casing bails. . . .


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Wellesley
256 – Wellesley

 		Transocean Arctic Drilling Operational 35/4-2
Songesand		 Production section 16/06/2020 The cement slurry for the 9 5/8″ casing was thick/sticky and caused cement pump suction problems . . .


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PGNiG
356 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Used mousehole and bucking machine for offline operations.


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PGNiG
357 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Casing running performance was good.


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PGNiG
358 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019
Backup 12 ¼” BHA tools not testing correctly (XBAT, PWD and HCIM)
Shipped out new backup XBAT and . . .


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PGNiG
359 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Insite (Halliburton) could not handle NOV data, resulting in an overload and some NPT.


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PGNiG
360 – PGNiG

 		Deepsea Nordkapp Drilling
INTERNAL		 Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Casing was sent out one week before handling equipment.


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PGNiG
361 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Cement stand is big and difficult to handle. Time consuming to rack back and lay out. Cement stand . . .


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PGNiG
378 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Issues recovering the OH 9-5/8” csg (in preparation for ST). Swabbing in annulus and back flow up . . .


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PGNiG
379 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Cut of 9-5/8” casing close to/above uncemented weak sand interval (w/ minor 5% gas). Resulted in . . .


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PGNiG
382 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 12-/4” drilling – parameters went well.


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PGNiG
383 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Had to stop operations to fix a leak in TDX s-pipe connection – 2x o-rings.


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PGNiG
384 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 NOV software did not include the PGNiG well so PGNiG personnel unable to see it – only seen in . . .


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PGNiG
385 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Excellent mud performance throughout operations. Issues with O/W ratio due to topside issues.


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PGNiG
386 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Production section 22/10/2019 Excellent cement performances throughout operations (except the first KOP due to losses, weak . . .


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Wellesley
206 – Wellesley

 		Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen		 Production section 07/02/2019 Unable to release CRTi tool after using it for the first time (above). Spent 30 min. And called . . .


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Wellesley
207 – Wellesley

 		Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen		 Production section 07/02/2019 AxeBlade Bit performed well, did not create stick-slip.


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