Hourly activities:
00:00 - 01:45: Ran 10 3/4" c95 60,7# vamtop tie-back casing from 15 m to 99 m MD.
01:45 - 02:00: Picked up and made up 10 3/4" 8,89 m space out pup.
02:00 - 03:30: Removed BX elevator and changed to DP elevator. Picked up 10 3/4" casing hanger adjustment sub assembly and made up same. Removed rubber protection and checked casing hanger according to vetco proecdure.
03:30 - 04:15: Picked up stand with 10 3/4" ITCO spear with PRS. Made up TDS while holding stand with PRS.
04:15 - 04:30: RIH and engaged spear in 3 m pup joint below 10 3/4" hanger by rotating string counterclockwise while picking up, obtained weight of tie-back string of 80 MT. Noted block height when casing hanger flush with RT.
04:30 - 04:45: RIH with tie-back casing on ITCO spear and tagged tie-back threads at 139,8 m with 2-3 MT E. Approx 15 cm deeper than expected). Checked colour band through b-annulus on tensioner deck, observed centre of 2nd orange band.
04:45 - 05:30: Put horizontal and vertical mark on pipe to count turns and measure elevation. Started rotation at 3 RPM clockwise and counted turns. Lost grip on ITCO spear due to too much weight being slacked off when the block weight increased. Re-engaged spear by conterclockwise rotation. Resumed rotation and let block weight incrase approx 8 MT. Stopped rotation after an estimated 4-5 turns obtained, judging from effective rotation and travel on colour bands. Took overpull to 10 MT and set torque limit to 10,17 KNM. Resumed rotation at 3 RPM. Torque and weight increased and peaked at 7,03 KNM before ITCO spear released. Estimated total downwards travel 2,5-3 inches. Re-attempted torquing up tie-back adapter twice, spear released at 3-5 KNM. Re-engaged spear and took overpull on tie. Back adapter to 30 MT.
05:30 - 06:00: Released 10 3/4" ITCO spear and POOH with same. Racked back stand in derrick. Prepared for rigging down casing tong.
06:00 - 07:30: Rigged down casing tong. Removed FMS and installed master bushing and bowl. Picked up adjustment sub actuation tool. Made up TDS.
07:30 - 07:45: RIH with adjustment sub actuation tool to 28,72 m MD to locate actuation dogs in polish bore target).
07:45 - 08:00: Pressured up through DP to 140 bar to actuate horizontal latch dogs.
08:00 - 08:15: Picked up to 2nd target and confirmed horizontal dogs latching into profile, took 5 MT overpull. Confirmed measurements. Rotated pipe 3 turns clockwise and obtained 2 KNM torque. Bled off pressure on DP to zero. Checked measurement towards rotary no movement.
08:15 - 09:15: Rotated pipe clockwise to retract adjustment sub. Obtained 6,5 turns on adjustment sub before stalling out on 10 KNM. Took 30 MT overpull and rotated 1/8 turn clockwise before stalling out at 6 KNM. Continuosly checked colour bands through annulus outlet on tensioner deck. Checked elevation of casing hanger
09:15 - 10:15: Slacked off overpull and came down to 1st tool target Waited 2 minutes for horizontal dog crest to relax. Picked up again and got unexpected overpull of 4-5 MT 20 cm above 2nd tool target groove). Slacked off pipe and picked up againg in attempt to free tool, got overpull at 2nd tool target. Made several attempts to free pipe by coming up and down with tool, not able to pass 2nd target. Pressured up on pipe to 120 bar. Re-attempted passing 2nd target negative. Bled off pressure. Worked pipe with 5 MT at 2nd target not able to pass. Tool was free to move down.
10:15 - 13:00: Discussed situation with town. Made plan of action.
13:00 - 15:00: Re-attempted comming free with adjustable sub actuation tool. Attempted to pull with 10 MT overpull negative. Pressured up pipe to 115 bar twice in attempt to manipulate horizontal latch dogs. Worked pipe several times with 10 MT overpull not able to pass 2nd tool target.
15:00 - 16:30: Held planning meeting for discussing contingency operations. Made plan of action.
16:30 - 17:15: Held toolbox meeting prior to contingency operations.
17:15 - 18:00: Pressured up on DP to 130 bar to make sure horizontal latch dogs and vertical torque dogs engaged in adjustable sub profiles, maintained pressure throughout operation. Adjusted block weight to 81 MT 1 MT overpull). Extended adjsutable sub while rotating 1-2 RPM torque 2-3 KNM. Observed torque peak of 7,09 KNM when rotation and torque transferred to tie-back adapter. Verified correct 10 3/4" casing hanger travel by observing colour bands through annulus outlet.
18:00 - 18:45: POOH with 10 3/4" tie-back casing on 5 1/2" DP stand from 140 m to 119 m MD. Hung 10 3/4" casing in manual casing slips and secured with dog collar. Observed top of casing hanger packed with dirt/cuttings. Moved casing tong to access IR.
18:45 - 19:45: Installed c-plate on top of 10 3/4" casing hanger. Bled off pressure on DP to zero. Adjusted pipe height to access 1st DP single with IR. Broke connection on 1st single breaking). Hung off DP in c-plate and screwd out connection with chain tongs. Racked back 5 1/2" DP double.
19:45 - 23:45: Installed DP elevator between c-plate and DP coupling and secured with cargo straps. Installed 10 3/4" BX elevator underneath 10 3/4" casing hanger. Removed drilling bails and DP elevator. Installed 10 3/4" BX elevator. Installed long bails and connected to 10 3/4" BX elevator. Moved casing tong to IR rails. Hooked up casing tong.
23:45 - 00:00: POOH with 10 3/4" tie-back casing to access coupling underneath 10 3/4" casing hanger sub assembly. Hung off on manual slips and secured with dog collar.

24-hour summary: RIH with adjustment sub actuation tool. Retracted adjustment sub according to drillquip procedure. Not able to come free with tool with 5 MT overpull. Discussed situation. Not able to come free with 10 MT overpull. Discussed sitaution. Reverted to contingency plan. Released and POOH with 10 3/4" tie-back casing with stuck tool. Broke casing connection and found tool packed with cuttings/dirt. Discussed situation. POOH with 10 3/4" tie-back caing.