Hourly activities:
00:00 - 00:15: Reset PRS electronics.
00:15 - 00:45: Continued POOH w/ cutter BHA on 5 1/2" DP from 453 m surface Avg. Tripping speed 600 m/hr.
00:45 - 01:00: Changed handling equipment
01:00 - 01:15: L/d pup joint. Inspected cutters, and taper mill. L/d cutter assy.
01:15 - 01:30: Cleaned and cleared drill floor. Static losses 0,5 m3/hr over 10 min.
01:30 - 02:00: P/u and m/u the 13 3/8" EZSV plug BHA. Installed springs on centralizer.
02:00 - 02:15: Installed PS-21 slips
02:15 - 02:30: RIH w/ EZSV plug BHA on 5 1/2" DP from 0 m to 30 m. Hung up on restriction at 30m. Re-attempted to run past restriction, same hud.
02:30 - 04:15: Pulled BHA to surface and inspected tool. Found cement in holes for springs on centralizer, which possibly interrupted spring movement. B/o and l/d EZSV RT, p/u backup, found cement on backup RT. Cleaned off cement. M/u BHA.
04:15 - 04:30: RIH slowly w/ EZSV plug BHA from surface to 42 m. Passed restriction at 30m.
04:30 - 04:45: Installed PS-21 slips.
04:45 - 05:30: RIH w/ EZSV plug BHA on 5 1/2" DP from 42 m to 285 m. Restricted running speed 2 min/std. Observed hydraulic leak on IRN.
05:30 - 05:45: Repaired hydraulic leak IRN.
05:45 - 06:30: Continued RIH w/ EZSV plug from 285m to 695m
06:30 - 07:00: Washed setting area from 695m to 685m w/ 800 l/min 6 bar
07:00 - 07:15: Set EZSV at 690m bottom plug. Sheared at 27t and tagged w/ 5t. Released stinger with 22 turns
07:15 - 07:30: Removed ps21 slips and installed master bushing
07:30 - 07:45: R/b stand, p/u and m/u 3m pup and cement stand for space out
07:45 - 08:00: Stang back into EZSV and m/u cement hose
08:00 - 08:15: Verified line up and performed integrity test to 100 bar between fosvs on cement assy
08:15 - 08:45: Attempted to pressure test below EZSV to 20 bar, meanwhile monitored trip tank, observed 500 l/min losses. Failed test
08:45 - 09:15: Closed UPR and lined up to monitor annulus through choke. Pressured up annulus through kill line to 35 bar whilst monitoring below EZSV with 5 bar at the cement unit through cement assy. Observed no pressure build up on the drill pipe side. Confirmed hydraulic isolation of annulus cement plug
09:15 - 09:30: Pumped 10m3 wash pill at 2500 l/min 19 bar
09:30 - 10:15: Balanced cement plug m 690 m mixed and pumped 7,8 m3 of 1,95 SG cement slurry, 600 l/min. Displaced the cement with 7,2 m3 of drill water. TOC 590 m.
10:15 - 10:45: Broke off cement hose and 3m pup w/ cement assy, l/d same
10:45 - 11:15: POOH with 5,5in DP from 687m to 500m w/ 2 min/stand. Flowback observed from 566m to 500m. M/u TDS and monitored pressure 1 bar on standpipe gauge
11:15 - 11:45: Installed sponge ball in saver sub and m/u TDS. Circulated 2x bu at 3500 l/min 31 bar
11:45 - 12:00: POOH from 500m to 405m
12:00 - 12:15: P/u swaco washing tool from HTS with FOSV, m/u to string and stand of drill pipe from derrick
12:15 - 12:30: Washed BOP, 3 passes, 1600 l/min 14 bar 20 RPM 1-4knm
12:30 - 12:45: Functioned BOP
12:45 - 13:00: Washed BOP, 3 passes, 1600 l/min 14 bar 20 RPM 1-4knm
13:00 - 13:30: R/b stand of 5,5in DP in derrick and l/d swaco wash tool and FOSV, drop 3in drift in string
13:30 - 13:45: Removed master bushing and installed ps21 slips
13:45 - 14:00: POOH from 405m to 16m
14:00 - 14:15: Removed ps21 slips and installed master bushing
14:15 - 14:30: POOH from 16m to surface, removed spring centralizers, l/d EZSV running tool
14:30 - 14:45: Cleaned and cleared rig floor
14:45 - 15:00: R/u diverter chains and bridle
15:00 - 15:15: Performed pre-job meeting to n/d diverter and BOP
15:15 - 17:30: N/d diverter and BOP
17:30 - 17:45: Took down scaffolding in moon pool
17:45 - 18:00: Lowered diverter chains through rotary and attached to HPDR
18:00 - 18:15: Removed dogs on HPDR connector to well head
18:15 - 18:45: Pulled HPDR to rig floor and installed master bushing
18:45 - 19:00: Lowered rig floor tuggers down to moon pool hatches and prepared for removing the hatches
19:00 - 19:15: Performed pre-job meeting to remove half moon cover and instal hatches in the moon pool. Meanwhile serviced drilling equipment
19:15 - 21:00: Removed half moon cover, lather, hoses and installed hatches in the moonpool. Meanwhile worked through skidding check list reporting on 15/9-f-1 c

24-hour summary: installed 13 3/8" EZSV pressure tested annulus cement pumped cement plug on top of 13 3/8" EZSV n/d BOP reporting on 15/9-f-1c