Hourly activities:
00:00 - 00:15: Picked up pre-made 5 1/2" HWDP with 10 3/4" ITCO spear with PRS. Attempted to make up stand to TDS negative slipped in TDS back up dies.
00:15 - 01:15: Broke off TDS from stand. Set down stand in PRS. Lowered TDS and inspected torque wrench dies, removed swarf from dies. Re-attempted make up to stand in TDS OK.
01:15 - 01:30: Ran 10 3/4" ITCO spear 3 m into 10 3/4" tie-back casing and latched same. Took up/down weight 82/79 MT. RIH with tie-back casing on 5 1/2" HWDP Put meter marks from casing hanger landing shoulder. Tagged with 4 MT at 139,4 m, i. E. 30-40 cm shallow no colour marks observed in WH b-annulus outlet. Re-attempted tag same depth.
01:30 - 02:30: Evaluated situation. Checked drawings for potential hang-ups. Checked tally and joints left on deck OK. Made two attempt to index pipe before tagging again same depth. Sudden overpull of 14 MT observed after pulling some 30 cm above tag depth.
02:30 - 03:15: Decided to attempt to screw in 1-2 turn in order to verify tie-back adapter depth. RIH and tagged approx 10 cm deeper than earlier. Observed lower orange and white band in b-annulus outlet. Measured required distance for adjustment sub travel and decieded to continue according to plan.
03:15 - 04:15: Set torqe limit to 2700 NM. Made 3 attempts to enter tie-back adapter. Entered tie-back adapter on 4th attempt and observed weight increasing about 3-4 MT for each turn. Slacked off to neutral MT) for each turn achieved. String stalled out at 2700 NM after 5+ turns achieved. Took 10 MT overpull. Rotated at 1 RPM. Attempted make up to 10 000 NM torque) spear started to slip at 5500 NM. Re-engaged spear. Adjusted torque setting to minimum torque 6600 NM started to slip at 5500 NM. Re-enaged spear. Set torque limit to 10 000 NM, increased rotation to 3 RPM. String stalled out on 10 000 NM torque) OK.
04:15 - 04:45: Took 30 MT overpull to check pre-tension in casing towards datum. Streched pipe approx 2" and observed lower white band through b-annulus outlet.
04:45 - 06:00: Rigged down odfjell casing tong and removed PS-30 slips. Installed masterbushing and bowl.
06:00 - 09:00: Jammed torque wrench on TDS. Inspected equipment and found that wrong die-holders had been installed. Changed die-holders.
09:00 - 09:15: Held toolbox talk prior to picking up adjustment sub activation tool.
09:15 - 10:15: RIH with adjustment sub and located same at 28,4 m MD. Checked serial numbers on pipe. Made up TDS.
10:15 - 11:00: Pressured up on drillpipe to 140 bar to activate horizontal dogs. Pulled back 0,4 m and confirmed engaged in vertical dog profile by 9 MT overpull. Rotated string with 22 righthand turns. Observed colored band through b-annulus outlet to confirm adjustment sub collapsing. Increased overpull to 30 MT and continued rotating until TDS stalled out on 9 KNM and overpull reduced. Slacked off string to 28,4 m MD mark and waited for 2 min. Bleed off pressure on DP. Obtained a total of 17" travel on adjustment sub.
11:00 - 11:45: POOH with adjustment sub activation tool and racked back in derrick.
11:45 - 12:00: Made up drillquip straddle cup tester.
12:00 - 12:30: RIH with straddle cup tester and located same at 28,4 m MD across metal seal in adjustment sub. Meanwhile held toolbox talk for pressure testing.
12:30 - 13:00: Lined up cement unit on standpipe. Performed line test to 380 bar.
13:00 - 14:30: Pressure tested adjustment sub seal) to 380 bar 10 min OK. Kept b-annulus open throughout test.
14:30 - 15:00: RIH with straddle cup tester from 28,4 m and located same across tie-back adpater at 140,5 m MD.
15:00 - 16:00: Filled pipe with approx 1,8 m3 packer fluid prior to testing. Pressured up to 380 bar observed leakage from b-annulus outlet not able to obtain test.
16:00 - 16:15: Pulled back 10 m to put cuptester in blank pipe to test tool. Pressured up not able to obtain test straddle cup test leaking.
16:15 - 17:30: POOH with straddle cup tester from 130,5 m MD to surface. Laid out cup tester and inspected same. Found no tears or flaws, but od reduced significantly vs originally 10,13")
17:30 - 17:45: Held toolbox talk prior to rigging casing running equipment.
17:45 - 18:00: Rigged up casing running equipment. Found a yellow sheared allen bolt on walkway along drillfloor. Suspended operation and evaluated situation.
18:00 - 20:00: Isolated aft PRS and TDS and inspected same with manrider. Found origin of bolthead to be from backside of aft PRS upper grip head.
20:00 - 00:00: Parked aft PRS for repair. Performed repair work on aft PRS. Broke out and re-thightended in total 24 allen/hex bolts with prescribed momentum ft lbs). Replaced broken bolt. Meanwhile bx3 elevator in bails vetco/bot equipment to cantilever

24-hour summary: Changed die holders in TDS. Ran adjustment sub activation tool and retracted adjustment sub. Tested metal seal in adjustment sub to 380 bar. Rigged up casing running equipment to run hanger RT. Observed dropped object on drilfloor suspended operations for investigation and repair work on aft PRS. RIH with hanger RT on 10 3/4" casing.