Hourly activities:
00:00 - 00:15: Performed TBT for POOH and racking 3 1/2" DP w/ FWD PRS.
00:15 - 03:15: POOH w/ cutting BHA on 3 1/2" DP from 761 m to surface, pulled wet. Avg. Tripping speed 277 m/hr.
03:15 - 03:45: Inspected cutting BHA and l/o same. B/o x-over.
03:45 - 04:00: Cleaned and cleared rig floor.
04:00 - 04:15: Changed handling equipment.
04:15 - 04:30: Performed TBT for rigging up CSG equipment.
04:30 - 05:30: Rigged up 7" tubing equipment.
05:30 - 06:00: P/u and m/u tubing hanger running tool. M/u tool to x-over and to TDS.
06:00 - 06:45: RIH to 20,5 m. Engaged into th as per vetco procedure. Picked up to 18,5 t, confirmed string free.
06:45 - 07:00: Flow checked, well stable.
07:00 - 07:15: Performed pre-job meeting with day shift prior to pulling completion.
07:15 - 07:45: Pulled THRT, reset drawwork limits due to stand height. Landed th in c-plate.
07:45 - 08:00: Broke THRT from hanger and removed same with PRS.
08:00 - 08:15: Removed communication collar. Performed check for radiation, non measured.
08:15 - 08:30: R/u air lines for cable drum and impact wrenches. Function tested same.
08:30 - 09:15: Placed handling tool on HTS, p/u and checked same. M/u and p/u tubing hanger, removed c-plate and installed auto slips.
09:15 - 09:30: Cut control lines, broke th and pup below. L/o assy to deck.
09:30 - 14:30: POOH 7" tubing including control lines from 450 m to surface. Removed clamps and spooled 4 ea control lines to reel while POOH. Performed radiation spot checks on every 10th joint. Zero readings.
14:30 - 14:45: Cleaned and taped up cut on last joint. L/o same to deck.
14:45 - 15:00: Performed TBT prior to rigging down casing equipment.
15:00 - 15:30: R/d casing tong and associated equipment. Changed elevators to 5 1/2" DP.
15:30 - 15:45: RIH with retrieval tool and pup joint. B/o and l/o same.
15:45 - 16:15: Cleaned and cleared rig floor.
16:15 - 17:15: Changed to 3 1/2" handling equipment. R/u auto slips.
17:15 - 18:00: P/u two singles from deck. M/u same and installed x-over. Parked stand in aft PRS.
18:00 - 18:30: P/u and m/u cutting BHA from RKB to 25 m. Installed x-over.
18:30 - 19:00: Surface tested cutting assy with 600 LPM 6 bar.
19:00 - 19:15: Performed TBT with night shift for RIH and cutting FLX-4.
19:15 - 21:30: RIH w/ cutting BHA on 3 1/2" DP from 25 m to 461 m.
21:30 - 22:00: P/u double with aft PRS. M/u TDS.
22:00 - 22:15: B/o 3 1/2" DP connection and filled pipe.
22:15 - 23:00: RIH with BHA. Hung up at 499,3 m, 5 t down weight. Attempted to pass restriction. Turned pipe and set down weight. No sucess. Checked space out. Depth corresponding with 7" tubing cut at 473,8 0,5 m. Rotated with 14 KNM. String stalled out. Pulled up with 37 t overpull and broke free.
23:00 - 23:30: POOH above cut at 473,8. Worked area with taper mill, 80 RPM.
23:30 - 00:00: Ran back in hole. Observed stop sub entering cut at 498,6 m. Tagged obstruction at 499,3 m. Worked string with 5 t down and attempted to pass obstruction. No success. Evaluated situation and decided to POOH.

24-hour summary: POOH with cutting BHA from 761 m to surface. L/d cutting BHA. R/u tubing handling equipment. RIH w/ THRT, engaged th and pulled free. POOH with THRT and th, l/o retrieval tool and hanger. POOH with 7" tubing, l/o joints to deck and spooled control lines. R/d tubing handling equipment. M/u cutting BHA RIH on 3 1/2" DP to 499,3 m. Worked string, unable to pass through restriction.