Hourly activities:
00:00 - 00:30: Tested schlumberger MWD tools and made a survey. Had ECD of 1. 54 SG EMW. Could not close BX-ELEVATOR.
00:30 - 01:30: Changed out BX-ELEVATOR due to slack spring in closing mechanisme. Could not operate back-up elevator. Changed back to primary BX-ELEVATOR and decided to operated it while looking for a new latch locking pin spring.
01:30 - 04:30: RIH with 8 1/2" BHA from 581 m to 1059 m on 5" DP. Filled DP every 10 stds. Had problems with elevator locking mechanism and experienced slow respons on joy-stick function for drawworks.
04:30 - 05:00: Replaced latch locking pin spring on BX-ELEVATORS. Fixed joy-stick for drawworks.
05:00 - 06:00: RIH with 8 1/2" BHA from 1059 m to 1390 m on 5" DP. Filled DP every 10 stds. Experienced problems with fingerboard respons on finger opening function).
06:00 - 08:15: RIH with 8 1/2" BHA from 1390 m to 1792 m on 5" DP. Filled DP every 10 stds. Experienced problems with fingerboard respons on finger opening function).
08:15 - 08:30: Changed from 5" to 5 1/2" handling equipment.
08:30 - 10:30: RIH with 8 1/2" BHA from 1792 m to 2438 m on 5 1/2 DP. Filled DP every 10 stds.
10:30 - 11:30: Made up to TDS. Washed down from 2438 m to 2476. Parameters flow 1700 LPM SPP 182 bar string RPM 10 TQ 7 KNM. Mud weight 1. 44 SG.
11:30 - 12:30: Performed choke drill with crew.
12:30 - 13:30: Lo one 5 1/2" DP single for space-out. Continued to wash down from 2476 m and tagged TOC at 2494m m below LC according to CSG tally). Tagged with 2 MT, parameters flow 1700 LPM SPP 182 bar string RPM 10 TQ 7 KNM. Mud weight 1. 44 SG.
13:30 - 17:15: Drilled out shoe track, 9 5/8" CSG shoe found at 2534 m. Parameters flow 1700 LPM SPP 198-210 bar string RPM 10 TQ 5-8 KNM. Mud weight 1. 44 SG.
17:15 - 17:45: Cleaned out rathole and 3 m new formation to 2539 m. Parameters flow 1800 LPM SPP 193 bar 2100 LPM SPP 252 bar string RPM 20 TQ 6-11 KNM. Started displacing to 1. 35 SG OBM while drilling new formation.
17:45 - 20:15: Continued displacing well to 1. 35 SG OBM, flow 1800 LPM SPP 165 bar at TD. Displaced choke kill lines, filled sand traps and filled trip tank with 1. 35 SG OBM.
20:15 - 21:00: Circulated until even mud weight 1. 35 SG in/out. Pulled 8 1/2" BHA into 9 5/8" shoe track to verify no restriction.
21:00 - 21:45: RIH and pumped 4 m3 LCM pill at 2539 m, flow 1000 LPM SPP 61 bar.
21:45 - 22:30: POOH wet to 2440 m. Up weight 141 MT. Cleared drill floor.
22:30 - 23:45: RU TIW, pump-in sub and CMT hose. Meanwhile held tool box talk for fit. Lined up for pumping down both drill pipe and kill line. Closed pipe ram on BOP. Performed line test to 100 bar min. 0. 8 drop. OK.
23:45 - 00:00: Took fit equivalent to 1. 60 SG, using 1. 35 SG OBM. Pumped 70 LPM and applied 60 bars to the string and annulus. Shut down the pump.

24-hour summary: MU and RIH 8 1/2" PD xceed BHA from 1390 m to 2438 m. Washed down and found TOC at 2494 m. Drilled out 9 5/8" shoetrack with 1. 44 SG OBM. Verified 9 5/8" CSG shoe at 2534 m. Cleaned out rathole and drilled 3 m new formation to 2539 m. Displaced well to 1. 35 SG OBM while cleaning out rathole. Pumped 4m3 of LCM and POOH with 8 1/2" BHA to above top LCM/INSIDE 9 5/8" CSG at 2440 m. Performed fit to 1. 60 SG EMW. Drilled 8 1/2" hole from 2539 m to 2591 m.