Hourly activities:
00:00 - 06:00: Continued drilling 12 1/4" hole from 3422 m to 3433 m. Parameters 3500 LPM/ 225-232 bar, 170 RPM/ 21-30 KNM, wob 7-13 ton, ROP 8-13 m/hr, ECD 1,33-1,34 SG. Note hard stringer at 3422 m and from 3428 m to 3433 m. ROP at stringer 1-3 m/hr.
06:00 - 10:15: Continued drilling 12 1/4" hole from 3433 m to 3437 m. Parameters 3500 LPM/ 229 bar, 170 190 RPM/ 17-22 KNM, wob 4-10 ton, ROP 1-3 m/hr, ECD 1,33 SG. Observed problem with mudpumps. Note hard formation from 3433 m to 3437 m.
10:15 - 11:45: Troubleshot problems with mud pumps and Repaired liner spray.
11:45 - 13:30: Continued drilling 12 1/4" hole from 3437 m to 3442 m, TD of section. Parameters 3500 LPM/ 229 bar, 170 190 RPM/ 17-22 KNM, wob 4-10 ton, ROP 1-4 m/hr, ECD 1,33 SG. Observed softer formation from 3339 m and increased ROP from 1 m/hr to 4 m/hr. Note hard formation from 3437 m to 3439 m.
13:30 - 13:45: Took survey at 3442 mmd, TD of section. Survey depth 3426,62 mmd/ 2652,73 mtvd. Inc 85,4dgr AZ 121,89 dgr. Compared to plan 3,8 m left/ 1,0 m high.
13:45 - 15:30: Circulated hole clean while resiprocated string at 3342 m. Parameters 3500 LPM/ 235 bar, 80 RPM up and 160 RPM down/ 15-19 KNM.
15:30 - 16:00: Flowchecked well on trip tank static.
16:00 - 16:15: Took up/ down WT and torque readings at 3432 m 185 ton up/ 127 ton down. Torque 22 KNM/ 10 RPM and 152 ton rot. WT.
16:15 - 17:00: POOH wet with 12 1/4" BHA on 5 1/2" DP from 3442 m to 3243 m.
17:00 - 17:15: Flowchecked well on trip tank, had initial losses 480 l/hr, but decreasing trend to 360 l/hr.
17:15 - 17:45: Dropped 3" drift for 5 1/2" DP. Pumped same down with 2000 LPM/ 87 bar and landed off with 136 bar.
17:45 - 18:00: Pumped and chased 5 m3 1,56 SG slug.
18:00 - 19:00: POOH with 12 1/4" BHA on 5 1/2" DP from 3243 m to 2907 m. Encountered tight spot at 2907 m, MAX OP 20 ton.
19:00 - 20:00: Attempted to rotate through tight spot at 2907 m, no go. Attempted to ream through with 500 LPM/ 10 bar, 20 RPM/ 14-30 KNM, no go. Observed signs of packing off.
20:00 - 21:15: Run in hole to 2920 m. Attempted to stage pumps up to 3500 LPM, no go. Observed 204 bar with 2500 LPM, previously had 136 bar with 2500 LPM. Probable due to drift in string. Reamed out of hole from 2920 m to 2880 m with 2750 LPM/ 244 bar, 30 RPM/ 15-18 KNM.
21:15 - 22:45: Attempted to pull on elevator from 2880 m, no go. Encountered tight spot at 2872 m, MAX OP 25 ton. Run in hole to 2880 m and m/u TDS. Attempted to rotate through tight spot at 2872 m, no go. Attempted to ream through with 500 LPM/ 18 bar, 20 RPM/ 14-30 KNM, no go. Reamed out of hole from 2880 m to 2840 m with 2750 LPM/ 245 bar, 30 RPM/ 15-25 KNM.
22:45 - 23:30: POOH wet with 12 1/4" BHA on 5 1/2" DP from 2840 m to 2598 m and into the 13 3/8" shoe. No restriction observed in rest of oh or shoe area.
23:30 - 23:45: Flowchecked well on trip tank, static.
23:45 - 00:00: Took up/ down WT and torque readings at 2598 m 172 ton up/ 136 ton down. Torque 11-13 KNM/ 10 RPM, 10-14 KNM/ 20 RPM and 154 ton rot. WT.

24-hour summary: Drilled 12 1/4" hole from 3433 m to 3442 m, TD of section. Circulated hole clean. POOH with 12 1/4" BHA from 3442 m to 2907 m. Took weight at 2907 m. Pumped out of hole to 2840 m. POOH from 2840 m to 2598 m. Repaired ESD system on rig. POOH with 12 1/4" BHA from 2598 m to 178 m.