bengsoon/volve_alpaca huggingface dataset:
Hourly activities:
00:00 - 02:30: Circulated 13 3/8" x 20" annulus to 1,40 SG OBM with 2020 liter/min, 26-28 bar.
02:30 - 03:00: Flow checked well, static.
03:00 - 03:30: Pumped 4 m3 1,70 SG slug.
03:30 - 05:00: POOH with 13 3/8" casing on 5 1/2" DP from 1422 m to 1284 m. Set hanger in slips. Picked up and released spear from hanger. Laid out spear assembly to cantilever.
05:00 - 07:15: Rigged up 13 3/8" casing handling equipment.
07:15 - 07:30: Performed pre-job meeting with oncoming crews.
07:30 - 07:45: POOH 13 3/8" hanger, broke out and laid down same.
07:45 - 13:00: POOH with 13 3/8" casing from 1272 m to 823 m. Average pulling speed 7,1 joints/hr.
13:00 - 13:15: Checked and serviced casing handling equipment.
13:15 - 14:45: POOH with 13 3/8" casing from 823 m to 618 m. Average pulling speed 11,4 joints/hr.
14:45 - 15:00: Serviced and lubricated casing handling equipment.
15:00 - 20:30: POOH with 13 3/8" casing from 618 m to surface. Average pulling speed 9,4 joints/hr.
20:30 - 21:45: Rigged down casing handling equipment.
21:45 - 00:00: Picked up seal assembly RT with seal assembly painted). RIH with seal assembly to below BOP. POOH with seal assembly and inspected same, no damage observed. RIH with seal assembly to 137 meter, hang up on shear seal, sat down 12 ton.

24-hour summary: Retrieved 13 3/8" casing.
Hourly activities:
00:00 - 01:15: POOH with seal assembly and inspected same, no damage observed.
01:15 - 04:00: Picked up new seal assembly and RIH from surface to 139,2 meter. POOH with seal assembly and inspected same, no damage observed.
04:00 - 06:00: RIH with seal assembly from surface to 140,38 meter. POOH with seal assembly.
06:00 - 06:30: Inspected seal assembly, found vertical marks on the seal od. Broke out and laid down seal assembly RT.
06:30 - 07:00: Picked up and made up wear bushing running tool and jet sub.
07:00 - 07:15: Performed pre-job meeting.
07:15 - 09:00: RIH with wear bushing. Jet washed WH with 2900 liter/min, 57 bar. Installed wearbushing. POOH with wearbushing and jetsub assembly RT, laid down same.
09:00 - 10:30: Picked up 13 3/8" casing cutter assembly from cantilever and broke off 5 1/2" HWDP single.
10:30 - 13:15: Held pre-job meeting prior to slip cut drill line. Slipped and cut drill line. Cleaned and cleared rig floor.
13:15 - 13:30: Performed pre-job meeting.
13:30 - 14:45: Made up 5 meter 5" DP pup with centralizer to 5 1/2" DP stand. Installed PS-21 slips.
14:45 - 16:15: RIH with 5 1/2" DP cement stinger from 5 m to 1340 m. Average tripping speed 890 meter/hr.
16:15 - 19:00: Connected TDS and washed down from 1340 meter with 500 liter/min, 5 bar, 3-15 gas. Started degassers. Observed obstruction at 1418 meter, not able to pass through. Increased pump rate in increments of 200 liter/min to 2000 liter/min, 15-31 bar, 6-12 gas.
19:00 - 20:30: Attempted to work string past 1418 meter with 2000 liter/min, 31 bar, 1,7-8,0 gas, 0-20 ton. Observed pressure increase to MAX 50 bar.
20:30 - 00:00: Continued to circulate to decrease gas level. Circulated with 2500 liter/min, 42-45 bar, 1,7-0,3 gas.

24-hour summary: Performed 13 3/8" seal assembly dummy run. Slipped and cut drill line. RIH with stinger to set kickoff plug. Circulated prior to set kickoff plug.
Hourly activities:
00:00 - 01:30: Circulated with 2500 liter/min, 42-45 bar, 0,45-0,18 gas. At 01 00 established rotation with 40 RPM, 2-4 KNM. Performed pre-job meeting prior to cement job.
01:30 - 02:00: Racked back stand and made up pump in sub with DPSV above and below. Meanwhile monitored well on triptank, well static.
02:00 - 02:15: Hooked up surface lines and pressure tested same to 200 bar for 10 minutes.
02:15 - 03:30: Pumped 26,9 m3 of 1,60 SG spacer at 2215 liter/min, 10-35 bar. Mixed and pumped 22,6 m3 of 2,0 SG cement slurry at 640 liter/min. Displaced cement to the rig floor with 890 liter drill water. Zeroed stroke counters. Pumped 1,9 m3 of 1,60 spacer. Displaced cement with 12,4 m3 OBM at 2200 liter/min, 5-10 bar, 50 RPM, 3-5 KNM.
03:30 - 06:15: Broke out pump in sub with DPSV above and below. POOH to 1348 meter. Dropped two sponge balls. Circulated clean with 3330 liter/min, 61 bar, 50 RPM, 3-6 KNM. Dumped 63 m3 contaminated mud.
06:15 - 06:30: Flow checked well, OK.
06:30 - 06:45: POOH wet with 5 1/2" DP stinger from 1348 m to 1295 m.
06:45 - 07:00: Pumped 4 m3 1,70 SG slug.
07:00 - 08:30: POOH with 5 1/2" DP stinger from 1295 m to surface. Average tripping speed 863 meter/hour. Filled trip tank from 08 05 to 08 10 hrs.
08:30 - 09:00: Removed PS-21 slips and installed master bushings.
09:00 - 09:30: Broke out and laid down cement assembly with pump in sub and DPSV'S.
09:30 - 13:00: Picked up and RIH with wearbushing RT and jetsub assembly. Jet washed WH with 3050 liter/min, 55 bar. Engaged wearbushing and pulled free with 20 ton overpull. Confirmed measurement to WH. POOH with wearbushing and jetsub assembly, laid down same.
13:00 - 13:15: Performed pre-job meeting prior to mill run.
13:15 - 15:00: Picked up and made up mill assembly. RIH with mill assembly on 5 1/2" HWDP from surface to 139 meter. Made up TDS and established circulation at 1000 liter/min, 7 bar.
15:00 - 17:00: Polished WH area from datum at 138,9 m to 139,3 m with 400 1000 liter/min, 6-9 bar, 30 RPM, 1-2 KNM.
17:00 - 18:00: POOH with mill assembly on 5 1/2" HWDP from 139 m to surface and laid out same.
18:00 - 19:30: Picked up seal assembly and RIH from surface to 140,3 meter. POOH with seal assembly and inspected same, observed vertical marks on the seal od.
19:30 - 22:00: RIH with wear bushing. Jet washed WH with 2900 liter/min, 57 bar. Installed wearbushing. POOH with wearbushing and jetsub assembly RT, laid down same. Cleaned and cleared rigfloor.
22:00 - 22:15: Performed pre-job meeting prior to making up BHA
22:15 - 23:30: Picked up and made up 17 1/2" drilling BHA and RIH from surface to 25m
23:30 - 00:00: Plugged i and programmed MWD tool

24-hour summary: Set kickoff plug. Pulled wear bushing. Polished wellhead. Performed 13 3/8" seal assembly dummy run. Installed wear bushing.
Hourly activities:
00:00 - 00:30: Plugged in and programmed MWD tools.
00:30 - 02:45: Picked up DC s, jar and accelerator. RIH with 17 1/2" BHA from 25m to 112m
02:45 - 03:00: RIH with 17 1/2" BHA on 5 1/2" HWDP from 112m to 234m.
03:00 - 03:15: Removed master bushings and installed PS-21 slips.
03:15 - 05:00: RIH with 17 1/2" BHA on 5 1/2" DP from 234 to 1271m.
05:00 - 05:15: Filled pipe
05:15 - 05:45: Performed choke drill
05:45 - 06:15: Washed down with 17 1/2" BHA from 1271m to 1351m at 2500 liter/min, 105 bar. Tagged firmed cement at 1351 meter
06:15 - 07:00: Performed downlink with 3600 liter/min, 220 bar
07:00 - 10:00: Drilled cement from 1351m to 1373 m with 3000-3810 liter/min, 155-230 bar, 122 RPM, 11-17 KNM, ROP 12-14 m/hr, wob 3-5 ton, ECD 1. 437 SG, MAX gas 0,02
10:00 - 14:00: Continued to k/o from f-15 c to f-15 d. Drilled with reduced rate from 1373m with 3000-4010 litre/min, 155-237 bar, 122 RPM, 6-12 KNM, ROP 2-5 m/hr, wob 3-5 ton, ECD 1,438 SG, MAX gas 0,04 at 14 00 hrs, 1380m MD, 50 cuttings was observed reporting continued on f-15 d

24-hour summary: None
Hourly activities:
14:00 - 19:00: Drilled with reduced rate from 1373m to 1403m with 3000-4010 liter/min, 50 return of formation at 1380m, 155-237 bar, 122 RPM, 6-12knm, ROP 2-5 m/hr, wob 3-5 ton, ECD 1,438 SG. MAX gas 0,04 obtained surveys as required
19:00 - 23:45: Drilled from 1403m to 1484m with 4000 liter/min, 235 bar, 80-120 RPM, 12-25 KNM, ROP 27-29 m/hr, wob 2-10 ton, ECD 1,420 SG. MAX gas 0,05 Obtained surveys as required
23:45 - 00:00: Recorded SCR s.

24-hour summary: RIH with 17 1/2" BHA. Drilled cement and kicked off. Drilled 17 1/2" hole.
Hourly activities:
00:00 - 08:15: Drilled 17 1/2" hole from 1484 m to 1654 m with 4000 liter/min, 235 bar, 138-142 RPM, 13-22 KNM, ROP 27-31 m/hr, wob 3-8 ton, ECD 1,420-1,424 SG. MAX gas 0,05 Meanwhile picked up and racked back 13 3/8" casing in derrick.
08:15 - 13:00: Circulated hole clean with 4500 liter/min, 280 bar. 3 x bottoms up. Racked back one stand each bottoms up.
13:00 - 13:45: POOH wet into 20" shoe with 17 1/2" BHA on 5 1/2" DP from 1443 m to 1321 m.
13:45 - 21:45: Waited one weather. Monitored well on triptank. Observed loss rate of 150 liter/hour. Called in ocean price for cuttings discharge at 21 30 hrs. Meanwhile picked up and racked back 13 3/8" casing in derrick. Performed planned maintenance.
21:45 - 22:30: RIH with 17 1/2" BHA on 5 1/2" DP from 1321 m to 1378 m. Unable to pass 1378 m. Established circulation with 2000-3300 liter/min, 77-165 bar, 5-15 RPM, 2-24 KNM, wob 15-24 ton. Worked string past 1378 meter.
22:30 - 22:45: RIH with 17 1/2" BHA on 5 1/2" DP from 1378 m to 1648 m.
22:45 - 23:00: Washed down with 17 1/2" BHA from 1648 m to 1654 m at 3000 liter/min, 170 bar.
23:00 - 00:00: Drilled 17 1/2" hole from 1654 m to 1670 m with 4000 liter/min, 280 bar, 140 RPM, 11-21 KNM, ROP 31-36 m/hr, wob 7-9 ton, ECD 1,420 SG. MAX gas 0,04 Meanwhile picked up and racked back 13 3/8" casing in derrick.

24-hour summary: Drilled 17 1/2" hole from 1484 m to 1670 m. Waited on weather.
Hourly activities:
00:00 - 13:45: Drilled 17 1/2" hole from 1670 m to 2002 m with 4000-4430 liter/min, 260-282 bar, 140 RPM, 12-21 KNM, ROP 31-38 m/hr, wob 1-12 ton, ECD 1,418-1,429 SG. MAX gas 0,85 At 13 30 the ocean pride disconnected cuttings hose due to bad weather. Meanwhile picked up and racked back 13 3/8" casing in derrick. Observed leaking pipe on iso tank stopped drilling.
13:45 - 18:00: Repaired leaking pipe on iso tank Meanwhile circulated hole clean with 4500 liter/min, 280 bar. 3 x bottoms up. Racked back one stand each bottoms up.
18:00 - 21:15: Repaired leaking pipe on iso tank Meanwhile RIH with 17 1/2" BHA from 1889 m to 1929. Established circulation with 500 liter/min, 5 bar, 30 RPM, 8 KNM. Reciprocated string between 1929 m and 1970 m.
21:15 - 21:30: Washed down with 17 1/2" BHA from 1970 m to 2002 m with 4450 liter/min, 292 bar, 140 RPM, 10 KNM.
21:30 - 23:00: Drilled 17 1/2" hole from 2002 m to 2032 m with 4450 liter/min, 296 bar, 140 RPM, 10-24 KNM, ROP 35-36 m/hr, wob 3-6 ton, ECD 1,410 SG. MAX gas 0,41
23:00 - 00:00: Circulated hole clean with 4500 liter/min, 280 bar. 3 x bottoms up. Racked back one stand each bottoms up.

24-hour summary: Drilled 17 1/2" hole from 1670 m to 2032 m. Waited on weather.
Hourly activities:
00:00 - 02:45: Circulated hole clean with 4500 liter/min, 280 bar. 3 x bottoms up. Racked back one stand each bottoms up.
02:45 - 03:00: Performed flow check, OK.
03:00 - 04:30: POOH wet into 20" shoe with 17 1/2" BHA on 5 1/2" DP from 1929 m to 1325 m. Observed obstruction when passing 1378 meter with stabs, 10-15 ton overpull. Ran back down to 1378 meter, sat down 15 ton, not able to pass. Pulled back into shoe at 1325 meter.
04:30 - 06:45: Waited one weather, not able to discharge cuttings to vessel due to hard weather. Monitored well on triptank.
06:45 - 07:00: Washed down with 17 1/2" BHA from 1366 m to 1404 m at 3000 liter/min, 132 bar, 15 RPM, 8-25 KNM. Observed 25 ton wob when bit passes 1378 m, continued to wash down. Observed 5-10 ton wob when stabs passes 1378 meter.
07:00 - 07:15: Pulled back with 17 1/2" BHA on 5 1/2" DP from 1380 m to 1370 m. Observed obstruction when passing 1378 meter with stabs, 5-10 ton overpull.
07:15 - 07:30: Slided down with 17 1/2" BHA from 1370 m to 1384 m at 3000 liter/min, 133 bar. Observed 20-21 ton wob when passes 1379-1382 m. Sat down 30 ton at 1395 meter, established rotation 15 RPM and attempted to wash down. No able to pass 1384 meter.
07:30 - 08:30: POOH wet into 20" shoe with 17 1/2" BHA on 5 1/2" DP from 1384 m to 1325 m.
08:30 - 13:45: Waited one weather, not able to discharge cuttings to vessel due to hard weather. Monitored well on triptank. Vessel came alongside at 12 00 hrs. Commenced cuttings discharge from rig iso tanks.
13:45 - 14:30: RIH with 17 1/2" BHA from 1364 m to 1376m. Sat down 30 ton at 1376 meter. Established circulation with 500 liter/min, 45 bar, 15 RPM, 5-28 KNM. Washed past 1376 meter with bit and stabilizers to 1392 m.
14:30 - 15:30: Washed down from 1392 m to 1444 m with 4450 liter/min, 267 bar, 30-60 RPM, 10-25 KNM.
15:30 - 16:45: RIH with 17 1/2" BHA from 1444 m to 2013 m.
16:45 - 17:30: Washed down from 2013 m to 2030 m with 4450 liter/min, 285 bar, 140 RPM, 10-19 KNM.
17:30 - 00:00: Drilled 17 1/2" hole from 2032 m to 2190 m with 4320 liter/min, 282-291 bar, 140 RPM, 15-22 KNM, ROP 32-36 m/hr, wob 3-6 ton, ECD 1,42 SG. MAX gas 0,2

24-hour summary: Drilled 17 1/2" hole from 1929 m to 2190 m. Waited on weather.
Hourly activities:
00:00 - 04:30: Waited on weather/iso tank vessel. Meanwhile circulated hole clean with 4330 liter/min, 277 bar. 3 x bottoms up. Racked back one stand each bottoms up.
04:30 - 04:45: Waited on weather/iso tank vessel. Meanwhile performed flowcheck, well static.
04:45 - 06:15: Waited on weather/iso tank vessel. Meanwhile POOH wet into 20" shoe with 17 1/2" BHA on 5 1/2" DP from 2089 m to 1362 m. Observed 5 8 t overpull at 1383 m bit depth. Built 13 3/8" casing stands and racked back same in derrick stands racked in total).
06:15 - 14:00: Waited on weather/iso tank vessel. Monitored well on trip tank. Meanwhile built 13 3/8" casing stands and racked back same in derrick stands racked in total). Performed general rig maintenance.
14:00 - 16:30: Waited on weather/iso tank vessel. Meanwhile RIH w/ 17 1/2" BHA from 1362 m to 1384 m, 25 t down weight. Reamed from 1383 m to 1403 m w/ 3000 l/min, 170 bar, 25 RPM, 8-29 KNM. Backreamed interval. RIH f/ 1363 m to 1401 m, 25 t down weight. Reamed from 1401 m to 1405 m w/ 4000 l/min, 174 bar, 25 RPM, 8-19 KNM. Washed in f/ 1405 m to 1440 m, no restriction. Pumped OOH f/ 1440 m to 1403 m w/ 4000 LPM, 174 bar. POOH f/ 1403 m to 1362 m, 15 t drag at 1378 m, observed 1/4 turn on string. Wiped stand from 1363 m to 1403 m, no restriction. POOH from 1403 m to 1364 m into 20" shoe.
16:30 - 19:00: Waited on weather/iso tank vessel. Meanwhile built 13 3/8" casing stands and racked back same in derrick stands racked in total). Performed general rig maintenance.
19:00 - 00:00: Waited on weather/iso tank vessel. Meanwhile isolated drill floor equipment and performed maintenance on FWD and aft PRS, TDS, block and dolly. Performed manriding in derrick after wind speed below 30 kts.

24-hour summary: Circulated hole clean 3 x b/u. POOH w/ 17 1/2" BHA into 20" casing shoe at 1362 m. Built and racked 13 3/8" casing stands offline. Waited on weather/iso tank vessel. While waiting built casing stands and racked same. RIH and reamed interval 1378 m to 1440 m twice, POOH into 20" shoe. Performed maintenance on PRS, TDS, block and dolly.
Hourly activities:
00:00 - 03:00: Waited on weather/iso tank vessel. Meanwhile performed maintenance on FWD and aft PRS, TDS, block and dolly. Performed general rig maintenance.
03:00 - 06:00: Waited on weather/iso tank vessel. Meanwhile troubleshot power supply issues on FWD PRS. De-isolated drill floor equipment. Built 13 3/8" casing stands and racked same in derrick stands racked in total)
06:00 - 07:30: Waited on weather/iso tank vessel. Meanwhile held TBT and removed FOSV from string. RIH w/ 17 1/2" BHA from 1364 m to 1502 m, 20 t down weight. Reamed in from 1502 m to 1593 m w/ 3000 LPM, 165 bar, 30 RPM and 10 20 KNM.
07:30 - 13:30: Waited on weather/iso tank vessel. Meanwhile RIH from 1593 m to 2131 m. Filled pipe and established parameters. Down linked. Circulated b/u and reciprocated string f/ 2131 m 2171 m, 3300 LPM, 185 bar, 80 RPM, 8 17 KNM. Connected iso tank vessel and emptied 1/2 iso tank on rig. Established drilling parameters and washed in from 2171 m to 2190 m
13:30 - 19:00: Drilled 17 1/2" hole from 2190 m to 2285 m, average ROP 17,3 m/hr, wob 2 10 t. 4350 l/min/ 290 bar. 140 RPM 10 24 KNM. ECD 1,42 SG. Reduced RPM to 80 while drilling through stringers. Performed surveys on connections as per DD instructions. Meanwhile built casing stands and shoe track. Racked same in derrick casing racked in total 67 stands). Offloaded cuttings to vessel.
19:00 - 21:00: Drilled 17 1/2" hole from 2285 m to 2331 m, average ROP 23 m/hr, wob 3 12 t. 4300 l/min/ 285 bar. 140 RPM 10 24 KNM. ECD 1,42 SG.
21:00 - 21:15: Took SCR.
21:15 - 22:00: Drilled 17 1/2" hole from 2331 m to 2350 m. Average ROP 25,3 m/hr.
22:00 - 23:45: Circulated b/u prior to drilling balder fm. W/ 4300 l/min/ 286 bar, 1,42 SG ECD. Took rotational check shots.
23:45 - 00:00: Drilled 17 1/2" hole from 2350 m to 2355 m, average ROP 20 m/hr. Wob 10 12 t. 4300 l/min/ 286 bar. 140 RPM 15 22 KNM. ECD 1,42 SG.

24-hour summary: While waited on weather/iso tank vessel performed maintenance on drilling equipment. Built 13 3/8" casing stands and r/b same in derrick. RIH with 17 1/2" BHA and circulated b/u. Connected iso tank vessel to rig and offloaded cuttings. Drilled 17 1/2" hole from 2190 m to 2350 m, built 13 3/8" casing stands offline. Circ. B/u prior to drilling balder fm. Drilled 17 1/2" hole from 2350 m to 2355 m
Hourly activities:
00:00 - 00:45: Drilled 17 1/2" hole from 2355 m to 2373 m, average ROP 24 m/hr. Wob 10 15 t. 4300 l/min/ 286 bar. 140 RPM 15 22 KNM. ECD 1,42 SG.
00:45 - 01:15: Installed pressure gauge on TDS brake system to aid fault finding.
01:15 - 05:15: Drilled 17 1/2" hole from 2372 m to 2418 m, average ROP 11,5 m/hr, wob 12 19 t. 4300 l/min/ 286 bar. 80 140 RPM 15 30 KNM. ECD 1,41 SG. Took surveys on connection as per DD instructions. Drilled hard stringers in interval.
05:15 - 07:00: Drilled 17 1/2" hole from 2418 m to 2431 m, average ROP 7,5 m/hr, wob 12 19 t. 4300 l/min/ 286 bar. 80 140 RPM 15 30 KNM. ECD 1,41 SG. Took surveys on connection as per DD instructions. Drilled hard stringers in interval.
07:00 - 15:15: Drilled 17 1/2" hole from 2431 m to 2493 m, average ROP 7,5 m/hr, wob 8 16 t. 4300 4400 l/min/ 282 297 bar. 70 140 RPM 8 28 KNM. ECD 1,41 SG. Took surveys on connection as per DD instructions. Drilled hard stringers in interval.
15:15 - 15:30: Took SCR'S.
15:30 - 15:45: Observed leak on kelly hose at connection. R/b stand.
15:45 - 16:00: Removed ps21 slips, installed master bushing. M/u swedge and hose and lined up for circulation.
16:00 - 19:00: Prepared permits, isolated TDS and drawworks. Replaced damaged o-ring. Connected kelly hose and safety lines. De-isolated TDS and drawworks. Meanwhile circ. Well with 1200 LPM 51 bar.
19:00 - 19:15: Removed hose and circ. Sub from string. M/u TDS, broke circulation. Tested kelly hose to 250 bar.
19:15 - 00:00: Drilled 17 1/2" hole from 2493 m to 2544 m, average ROP 10,7 m/hr, wob 8 16 t. 4300 l/min/ 295 bar. 120 160 RPM 12 28 KNM. ECD 1,41 SG. Took surveys on connection as per DD instructions. Drilled hard stringers in interval.

24-hour summary: Drilled 17 1/2" hole from 2355 m to 2493 m. Repaired leak on kelly hose. Drilled 17 1/2" hole from 2493 m to 2544 m.
Hourly activities:
00:00 - 03:00: Drilled 17 1/2" hole from 2544 m to 2573 m, average ROP 9,7 m/hr, wob 6 15 t. 4300 l/min/ 295 bar. 140 160 RPM 12 28 KNM. ECD 1,41 SG. Took surveys on connection as per DD instructions. Drilled hard stringers in interval.
03:00 - 05:00: Drilled 17 1/2" hole from 2573 m to 2589 m, average ROP 8 m/hr, wob 6 15 t. 4300 l/min/ 295 bar. 140 160 RPM 12 28 KNM. ECD 1,41 SG.
05:00 - 06:30: Drilled 17 1/2" hole from 2589 m to 2595 m. Picked off bottom and downlinked. Diagnosed downhole tools with different parameters.
06:30 - 09:30: Drilled 17 1/2" hole from 2595 m to section TD at 2618 m. Average ROP 7,6 m/hr. Wob 6 10 t. 4300 l/min/ 296 bar. 120 RPM 16 28 KNM. ECD 1,41 SG.
09:30 - 14:45: Circulated hole clean w/ 4330 l/min/ 295 285 bar, 120 RPM 10 18 KNM, ECD 1,40 SG. Circulated total 3 b/u. Reciprocated string while circ. And r/b one stand after each b/u. Stopped rotation on last 30 min due to installation of sensor in TDS junction box of brake system).
14:45 - 15:00: Flowchecked, well static.
15:00 - 15:30: POOH wet w/ 17 1/2" BHA on 5 1/2" DP from 2533 m to 2333 m. Avg. Tripping speed 400 m/hr.
15:30 - 16:00: Pumped slug and allowed levels to stabilise.
16:00 - 16:15: POOH from 2333 m to 2270 m. Took 25 t overpull at 2270 m, attempted to wipe area 3 times, no success.
16:15 - 16:45: Rotated through tight spot from 2280 m to 2260 m w/ 15 RPM, 10 20 KNM.
16:45 - 18:15: POOH w/ 17 1/2" BHA on 5 1/2" DP from 2260 m to 1364 m. Avg. Tripping speed 597 m/hr.
18:15 - 18:30: Flowchecked well for 10 min, well static. Performed trip drill.
18:30 - 19:45: POOH on 5 1/2" DP from 1364 m to 249 m. Avg. Tripping speed 892 m/hr.
19:45 - 20:00: Flowchecked prior pulling BHA through BOP. Well stable. Removed ps21 and installed bushings.
20:00 - 23:15: R/b HWDP and DC, including jar and acc. Plugged into MWD and dumped data. L/d 17 1/2" BHA in three modules.
23:15 - 23:30: Cleaned and cleared rig floor.
23:30 - 00:00: P/u and m/u vetco bull nose jet sub. RIH to below BOP. Operated pipe rams.

24-hour summary: Drilled 17 1/2" hole to section TD at 2618 m. Circulated well clean, 3 x b/u. POOH 17 1/2" BHA and l/d same. M/u and RIH w/ jetting tool.
Hourly activities:
00:00 - 00:15: Jetted BOP w/ 2000 LPM and 17 bar.
00:15 - 02:00: P/u and m/u vetco wbrrt. RIH on 5 1/2" HWDP. Jetted NSP area prior to landing wbrrt w/ 2200 LPM, 30 bar. RIH and landed wbrrt at 139,24 m at 138,92 m), set down 6 t as per vetco instructions. Pulled NSP free with 2 t overpull. Jetted NSP setting area w/ 2200 LPM, 30 bar.
02:00 - 03:00: Dropped 2 7/8" drift. POOH w/ wbrrt to surface. Inspected NSP, disengaged same from running tool. Re-set wbrrt and l/o same. L/o jetting assy and recovered drift.
03:00 - 03:30: Cleaned and cleared rig floor after wet trip.
03:30 - 03:45: Performed TBT prior rigging up casing running equipment.
03:45 - 08:15: R/u handling equipment for 13 3/8" casing removed drilling bails and elevator. Installed long bails. P/u archer FAC tool. Changed out torque wrench die holders to be able to m/u fill up tool. M/u FAC tool and confirmed check valves open.
08:15 - 08:45: TOFS cleaned and cleared rig floor.
08:45 - 10:00: R/u handling equipment for 13 3/8" casing installed BX elevator, secured hoses and function tested same. Installed tilt arms on bails. Installed and function tested ps30 slips.
10:00 - 10:15: Performed TBT prior to run casing stands from derrick.
10:15 - 11:45: RIH with 13 3/8" 72ppf q125 VAM top casing from surface to 295 m. Ran casing in stands from derrick, including shoe track. Average running rate 16 joints/hr. Float in self-fill mode.
11:45 - 12:30: Installed fill up tool. Evacuated rig floor due to excessive exhaust fumes from process turbines direction 284 deg).
12:30 - 16:00: RIH with 13 3/8" casing in stands from 295 m to 1362 m. Average running rate 25 joints/hr.
16:00 - 16:30: Broke circ. W/ 220 l/min and 27 bar. Attempted to increase flow to 330 l/min, 36 bar, observed TDS weight decrease. Shut pumps down and bled pressure off.
16:30 - 17:00: M/u swedge and circ. Hose.
17:00 - 17:15: Attempted to breake circulation. Pressure increased to 70 bar, hold 3 min and bled off.
17:15 - 17:45: Evaluated situation and discussed way forward.
17:45 - 18:30: Lined up to pump down annulus. Pumped w/ 130 l/min, 10 bar, held 5 min. Pumped up to 15 bar, held 5 min. No pressure decrease, bled off pressure to zero.
18:30 - 19:00: Lined up to pump down casing. Pressured up to 72 bar and observed sudden pressure drop. Float converted and ball sheared.
19:00 - 20:00: Increased flow in steps to 1500 l/min/ 30 bar. Circulated one casing volume m3).
20:00 - 20:15: R/d swedge and circ. Hose
20:15 - 00:00: RIH with 13 3/8" 72ppf q125 vamtop casing in stands from 1362 m to 2470 m. Filled casing every stand. Average running rate 25 joints/hr.

24-hour summary: Retrieved nominal seat protector. R/u casing handling equipment. RIH with 13 3/8" 72# q125 vamtop casing in stands from derrick to 1362 m. Troubleshot convertible float and circulated at 20" casing shoe. Continued RIH with 13 3/8" casing in stands from 1362 m to 1470 m.