Hourly activities:
00:00 - 01:00: M/u TDS and pumped w/ 400 l/min 3. 5 bar, 550 l/m 5 bar. Up/down weights 202t/126t. Washed down w/ 550 l/min from 2712m to 2768m
01:00 - 01:30: Tagged cement at 2768m w/ 10t, released spear by rotating 2x turns clockwise and observed torque dropped to 6knm then increased to 9knm. Observed hook load dropped to 90t. RIH slowly and located top of 7in tubing 7m lower or at 2775m. Set down 10t to repeat tagging of the cement
01:30 - 03:15: Dropped drift and POOH w/ spear on 5,5in DP from 899 m to surface. Avg. Tripping speed 730 m/hr retrieved drift
03:15 - 03:30: Pulled spear on surface. Inspected same, OK
03:30 - 03:45: Removed ps21s and installed master bushings
03:45 - 04:00: Performed pre-job meeting to p/u MS-T seal retrieval tool
04:00 - 04:15: M/u MS-T seal retrieval tool to 1x joint and 1x pup joint of 5,5in DP
04:15 - 04:45: Pulled MS-T seal retrieval tool to surface and connected control lines, function tested tool
04:45 - 05:00: RIH w/ MS-T seal retrieval tool and positioned tool stem in correct space out. Meanwhile bled off 5 bar from b-annulus.
05:00 - 06:00: Turned string counter clockwise using chain tongs, only able to get 1x turn. Backed out and attempted again, 1x turn only. Tried to turn w/ iron roughneck, no go
06:00 - 06:30: POOH and inspected tool, no damage found, observed some minor scratches
06:30 - 06:45: L/d MS-T seal retrieval tool on HTS
06:45 - 07:30: P/u and m/u jetting tool assembly to 5,5in DP stand
07:30 - 07:45: Jetted WH area with 2200 l/min 60bar 10 RPM
07:45 - 08:00: L/d wash tool and r/b DP stand
08:00 - 08:30: P/u MS-T retrieval tool assy
08:30 - 10:30: RIH with MS-T seal retrieval tool. Rotated tool 4x turns counter clockwise to engage tool to seal. Released seal assembly w/ 80t overpull
10:30 - 11:15: POOH w/ MS-T seal retrieval tool, removed seal assy. Disconnected control lines. L/d tool and landing string
11:15 - 11:30: Cleaned and cleared rig floor
11:30 - 11:45: Performed pre-job meeting to p/u cutter BHA
11:45 - 12:15: P/u premade cutter BHA m/u to 5,5in DP and RIH to cutting depth of 124m
12:15 - 12:45: M/u TDS to string, checked and verified depth, filled pipe. Established parameters. 300 l/min 30bar, 500l/min 83bar, 100rpm, 1-5 KNM off), weights 73t up, 69t down, 70t rotation
12:45 - 13:15: Cut 10 3/4in surface tie-back at 124m. 80rpm, 300 l/min 30bar. Observed shock on surface indicating successful cut
13:15 - 13:45: POOH w/ cutter BHA to surface and l/d same
13:45 - 14:00: Cleaned and cleared rig floor
14:00 - 14:30: Serviced drilling equipment
14:30 - 14:45: Performed pre-job meeting to p/u spear assembly
14:45 - 15:00: P/u spear assembly from derrick, checked and serviced same
15:00 - 15:15: RIH and latched on to 10 3/4in tie-back. Pulled free same w/ 8t overpull
15:15 - 16:00: R/u casing tong for 10 3/4in CSG
16:00 - 16:30: Set slips on fish and released spear. R/b spear in derrick
16:30 - 16:45: Changed to bx3 elevators
16:45 - 17:00: Installed elevator on hanger. Broke off and l/d same
17:00 - 18:15: POOH 10 3/4in CSG tie-back from 104m to surface
18:15 - 19:15: R/d casing tong. Cleaned and cleared rig floor
19:15 - 19:30: Performed pre-job meeting to p/u torque tool BHA
19:30 - 19:45: P/u and m/u torque tool to 3m. Removed FOSV from swedge
19:45 - 20:30: P/u 1x stand of 5,5in HWDP and m/u to x-over, RIH w/ 5,5in HWDP from 3m to 117m. Torqued all connections to 67500 KNM
20:30 - 21:00: M/u TDS to 5,5in DP, RIH to 140m, started pumping with 1450 l/m, rotated w/ 10rpm. Jetted tie-back adapter area
21:00 - 21:45: Stopped pumping and engaged to tie-back adapter at 141,5m. Attempted to back out tie back adapter with 30k KNM, string backed out at saver sub. M/u saver sub to 50 KNM. Tried to break again up 40knm, something broke below rotary table, after 2 turns measured distance travelled up of string Continued turning out further 4 turns, distance travelled further Assumed as good indication of tie back adapter loose.
21:45 - 22:30: POOH from 141,5m, visually checked all connections. When reached end of last 5,5in HWDP stand observed no BHA. The connection backed out from x-over
22:30 - 23:30: RIH with 5,5in HWDP to fish BHA, from surface to 113m. M/u TDS to 5,5in DP and tagged top of fish at 138,5m. Rotate to screw into the fish, string stalled out at 6knm
23:30 - 23:45: POOH w/ BHA to surface, removed and inspect x-over, OK
23:45 - 00:00: M/u to x-over. All connections m/u to 67knm, saver sub m/u to 50knm. RIH to 117m

24-hour summary: tagged cement plug left tubing in hole pulled MS-T seal cut 10 3/4in tie-back CSG pull 10 3/4in surface CSG hanger and tie-back above the cut attempted to release tie-back adapter