Hourly activities:
00:00 - 01:30: Greased and operated valves on kill manifold and in moonpool. Changed valve and on cement unit. Greased valves on cement unit. Drained mud from cement unit and filled tanks with water.
01:30 - 02:00: Pressure tested cement unit against isolation valve. Obtained test to 345 bar with 1,3 bar drop 10 min.
02:00 - 03:30: Tested kill line against valve in moonpool and k3 valve on kill manifold. Pressurized to 35 bar, dropped 0,5 bar 5 min OK. Pressurized to 345 bar, dropped 0,7 bar 5 min OK. Tested kill line against HCR valves. Pressurized to 35 bar, dropped 0,5 bar 5 min OK. Pressurized to 345 bar, dropped 1 bar 5 min
03:30 - 04:00: Lined up to test MS-SEAL from above. Pressurized to 35 bar, dropped 0,6 bar 5 min OK. Pressurized to 345 bar. Pressure dropped 0,7 bar 5 min in the start but with gradually increasing fall off trend. Dropped 1,8 bar 5 min towards the end of the test. Pumped and bled back 373 liter. Bled off pressure and discussed situation. Decided to re-attempt pressurizing MS seal with padprt tool.
04:00 - 04:45: Re-sat padprt by applying 30 MT overpull. Pressurized to 207 bar to re-energize MS-SEAL. Held pressure for 10 min 1,3 bar drop Slacked off overpull on padprt to relax bulk seal. Took 30 MT overpull to expose MS-SEAL.
04:45 - 05:30: Lined up to pressure test MS seal from above. Pressurized to 35 bar, pressure dropped 0,4 bar 5 min OK. Pressurized to 345 bar. Pressure dropped at 1,7 bar 5 min in the beginning but improved towards the end of the test to 0,5 bar 5 min. Last 10 min 1,1 bar drop OK. Pumped and bled back 400 liter. Lost 20 MT on block while performing test.
05:30 - 06:00: Attempted to released padprt by slacking off weight and applying 4 rigihthand turns nogo. Discussed situation.
06:00 - 07:45: Discussed way forward with regards to releasing padprt. Repeated padprt release procedure but got same negative result.
07:45 - 09:00: Awaited instructions for releasing padprt.
09:00 - 09:30: Reverted to emergency release procedure. Rotated string 13 times counterclockwise until torque bulid up of 10 000 NM. Attempted to pull free with 40 MT overpull nogo. Repeated emergency release procedure but got same negative result.
09:30 - 13:00: Awaited instructions for releasing padprt. Meeting ongoing with town.
13:00 - 13:15: Held toolbox talk for attempt to free padprt with straight pull release.
13:15 - 13:45: Stepped up hookload. Released padprt with 60 MT overpull. Observed 30 MT continuos drag after release.
13:45 - 14:30: Staged up pumps to 2650 LPM SPP 25 bar. Circulated riser clean. Got fines over shakers.
14:30 - 14:45: Broke out and laid down cement head.
14:45 - 16:00: POOH with padprt on 5 1/2" HWDP fdrom 137 m MD to surface. Laid out padprt. Found tool cavities packed with cuttings.
16:00 - 16:15: Held toolbox talk prior to running wearbushing.
16:15 - 16:45: Made up jet sub and testable wbrrt.
16:45 - 17:15: RIH with jet sub wbrrt on 5 1/2" DP from surface to 140 m MD. Washed across wellhead from 136,5 m to 143 m MD with 2650 LPM.
17:15 - 18:00: Set wearbushing at 140,5 m MD according to vetco instructions. Applied 8 MT overpull to verify setting.
18:00 - 19:00: Lined up kill manifold for re-testing MS-SEAL. Closed UPR. Conducted line test against HCR to 345 bar 5 min, dropped 0,6 bar OK.
19:00 - 21:30: Attempted to replicate test on MS seal testing against wbrrt. Conducted low pressure test to 35 bar 5 min OK. Pressured up to 345 bar, not able to obtain good test, pressure leaked off at approx 3,5 bar 10 min 1 and did not stabilize. Topped up drillpipe and observed for flow up drillpipe. Observed flow from drillpipe. Discussed situation. Decided to pull wbrrt and install test plug for test of MS-SEAL and BOP.
21:30 - 23:00: POOH with wbbrt from 140 m MD to surface. Laid down wbbrt.
23:00 - 00:00: Made up BOP test plug. RIH with BOP test plug on 5 1/2" DP from surface to 140 m MD.

24-hour summary: Attempted to release padprt negative. Discussed situation with town. Pulled padprt free with 60 MT overpull. Cleaned riser and POOH with padprt. Ran wearbushing and cleaned wellhead. Attmepted to re-test MS seal against wbrrt negative. POOH with wbrrt. Ran BOP test plug. Tested BOP and obtained good test on MS-SEAL.