WE Report

Lessons Learned

Lessons Learned865

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

PGNiG
363 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Time consuming to test HAL MWD tools onboard.


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PGNiG
364 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Time consuming to handle and M/U BHA.


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PGNiG
365 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Racked core barrels, saving rig time.


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PGNiG
366 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 FIT was performed as planned. Pumped approx. 2 m3 before 8 bar reference pressure was seen.


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PGNiG
367 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Performed FIT to 1.58 sg.


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PGNiG
368 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Drilled 8 1/2″ section with 1.30 sg MW. Based on LWD data from 12 ¼” the predicted PP in the 8 ½” . . .


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PGNiG
369 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Difficult to decide on placement of centralizers for racking since the casing joints vary in lengths . . .


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PGNiG
370 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Reduced torque when drilling out shoetrack resulting in less efficiency.


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PGNiG
371 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 StormGeo faultly predicted the upcoming weather, resulting in new decisions being made based on . . .


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PGNiG
372 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Problems with gas readings from gas trap with flow less than 2000 lpm. Gas trap installed in flow . . .


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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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PGNiG
374 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Getting OBM sent out lith a low O/W ratio (70/30).


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PGNiG
375 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Cores were retrieved successfully.


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PGNiG
376 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Coal was discovered in reservoar, resulting in stuck core barrels on annulus.


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PGNiG
377 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Waited for 30 minutes for annular relaxation after a P/T.


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PGNiG
380 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Circulating after releasing 9-5/8” hgr.


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PGNiG
381 – PGNiG

 		Deepsea Nordkapp Drilling Operational 6507/5-9 S, 6507/5-9 A
Shrek		 Reservoir section 22/10/2019 Circulating beneath annular for potential gas (ie on pulling seal assy)


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Faroe
291 – Faroe

 		Transocean Arctic Drilling Operational 31/7-3 A
Brasse		 Reservoir section 03/10/2019 It took 5 hours to drill the wiper plugs in the Weatherford liner. This is twice as long as normal. . . .


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Faroe
292 – Faroe

 		Transocean Arctic Drilling Operational 31/7-3 A
Brasse		 Reservoir section 03/10/2019 Stuck with wireline toolstring 1A ZAIT-PEX-PPC-MSIP-PPC-NGI-XPT at 2831 m, bottom of toolstring and . . .


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Faroe
293 – Faroe

 		Transocean Arctic Drilling Operational 31/7-3 A
Brasse		 Reservoir section 03/10/2019 Performed cut and thread operation to free stuck wireline cable and fish wireline toolstring 1A. . . .


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