bengsoon/volve_alpaca huggingface dataset:
Hourly activities:
00:00 - 02:00: RIH with 13 3/8" casing in stands from 2228 m to 2448 m. Filled casing every 3. Th stand. Average running speed 110 m/hr 9 joint/hr.
02:00 - 03:00: Rigged down casing fill up tool, bails and casing elevator. Rigged up 5 1/2" DP handling equipment.
03:00 - 03:30: Picked up and made up casing hanger.
03:30 - 03:45: Removed casing slips and installed master bushings.
03:45 - 04:00: Removed protection from hanger and checked seals. Hanger not able to pass through rotary due to misalignment.
04:00 - 04:15: Rigged up snatch block to align hanger and allow it to pass through rotary.
04:15 - 04:30: Ran hanger through rotary and sat in manual slips.
04:30 - 05:45: Rigged down 13 3/8" casing tong.
05:45 - 07:15: RIH with 13 3/8" casing on 5 1/2" HWDP landing string from 2460 m to 2570 m. Experienced tight spot between 2562 m 2570 m. Worked tight spot, not able to pass 2570 meter.
07:15 - 07:30: Made up TDS to string and established circulation with 500 liter/min, 18 bar.
07:30 - 15:45: Washed and worked down 13 3/8" casing on 5 1/2" HWDP landing string from 2560 m to 2596 m with 500-1500 liter/min, 18-45 bar, 20-40 ton down weight. The hole packed off several times. Lost 500-3000 liter/hour to formation.
15:45 - 16:30: Picked up and made up cement stand to landing string. Landed casing hanger in wellhead, sat down all weight. Rotated 1/4 right hand turn.
16:30 - 19:00: Established circulation and increased rate in steps to 2200 liter/min, 29 bar. Observed pack off at 2200 liter/min, reduced rate to at 1800 liter/min, 21 bar meanwhile performed pre-job meeting prior to cement job. Rig air supply from production shut down.
19:00 - 22:15: Production troubleshot on rig air system and consumption. Tested and confirmed air supply OK. Meanwhile pressure tested surface lines and cement hose to 30 345 bar 5 10 minutes. Circulated and conditioned mud with 1800 liter/min, 21 bar.
22:15 - 00:00: Pumped 25 m3 of 1,75 SG spacer using rig pumps with 1560 liter/min, 15 bar. Lined up to pump from cement unit. Applied 20 bar pressure behind IBOP. Released dart for bottom wiper plug. Mixed and pumped 27,7 m3 of 1,90 SG cement slurry at 600 liter/min. Observed dart landing and shearing. Released dart for top wiper plug.

24-hour summary: RIH with 13 3/8" casing in stands from 2228 m to 2570 m. Washed and worked 13 3/8" casing down on landing string from 2570 m to 2596 m. Circulated and conditioned mud. Mixed and pumped 27,7 m3 1,90 SG cement.
Hourly activities:
00:00 - 01:45: Displaced cement to rig floor with 3000 liter of drill water. Observed top wiper plug shear. Zeroed volume counters. Continued to displace cement using rig pumps with OBM at 1800 liter/min, 0-60 bar. Observed bottom wiper plug landing with 136 bar. Observed loss of full returns after 180 m3 pumped. Reduced rate to 1400 liter/min, still not full returns. Reduced rate to 500 liter/min after 181,5 m3 pumped. Displaced with theoretical volume 1/2 shoe track volume 186,4 m3 1,25 m3 187,6 m3. Top plug did not bump. Recorded FCP 60 bar. Lost 10,2 m3 during cement displacement.
01:45 - 02:30: Bled off pressure and checked for back flow on cement unit. No back flow observed.
02:30 - 06:00: Set and pressure tested seal assembly to 345 bar 15 min.
06:00 - 09:30: Tested BOP pipe rams and annular to 20 345 bar 5 10 minutes. Meanwhile performed pre-job meeting prior to break out and lay down cement head.
09:30 - 12:00: Released casing hanger RT. Broke out and laid down cement head. Installed 2 ea. Sponge balls in string. Circulated clean with 2230 liter/min, 19 bar. POOH with casing hanger RT and laid down same.
12:00 - 12:15: Cleaned and cleared drill floor. Held pre-job meeting prior to wear bushing run.
12:15 - 13:15: Installed wear bushing in WH, datum at 138,92 meter.
13:15 - 14:00: Continued to test BOP pipe rams to 20 345 bar 5 10 minutes.
14:00 - 15:30: Broke out and laid down jet sub wear bushing RT assembly. Cleaned and cleared drill floor.
15:30 - 18:00: Pressure tested IBOP'S, kelly hose and manifolds to 20 345 bar 5 10 minutes.
18:00 - 00:00: Waited on cement. Meanwhile performed planned maintenence on TDS and travelling block. Restarted v-icis. Replaced wash pipe. Measured TDS dolly alignment using laser equipment. Replaced solenoid valve on aft PRS

24-hour summary: Displaced cement. Set and tested seal assembly. Released and POOH with hanger RT. RIH and set wear bushing. Waited on cement meanwhile tested surface equipment. Performed planned maintenance.
Hourly activities:
00:00 - 01:45: Waited on cement. Meanwhile pressure tested manifolds to 20 345 bar 5 10 minutes. Performed planned maintenence on TDS and travelling block. Installed BHA wash tool.
01:45 - 03:00: Pressure tested 13 3/8" casing to 20 320 bar 5 10 minutes against blind shear ram.
03:00 - 04:30: Made up and RIH with 12 1/4" BHA from surface to 167 meter.
04:30 - 08:45: RIH with 12 1/4" BHA on 5 1/2" DP from 167 m to 2508 m. Average tripping speed 550 m/hr 13 stds/hr. Filled pipe every 1000 meter.
08:45 - 09:15: Performed choke drill.
09:15 - 09:30: Established circulation and washed down with 12 1/4" BHA on 5 1/2" DP from 2508 m to 2548 m at 2000 liter/min, 82 bar. Tagged TOC at 2548 meter.
09:30 - 14:15: Drilled shoetrack and cement from 2548 m to 2602 m with 2000 2500 liter/min, 85-122 bar, 30-60 RPM, 8-20 KNM, wob 3-11 ton. Reduced mud weight from 1,40 SG to 1,28 SG OBM while drilling. Cleaned out rat hole in 1-2 meter steps, reamed rat hole twice. Meanwhile prepared for pick up and racking of 10 3/4" casing.
14:15 - 15:15: Drilled 3 meter new formation to 2605 meter. Pulled back into shoe without circulation or rotation to confirm no restrictions observed.
15:15 - 16:00: Circulated and conditioned mud until 1,28 SG mud in and out with 3000 liter/min, 145 bar. Meanwhile lined up and tested lines from cement unit to 120 bar 5 min
16:00 - 17:15: Performed fit to 66 bar using 1,28 SG mud, 1,55 SG EMW. Pumped 877 liter from 5 bar to 66 bar at cement unit with 55 liter/min. Bled back 811liter.
17:15 - 17:45: Flow checked well for 10 min, OK.
17:45 - 18:30: Dropped gyro. Waited for gyro to initialize.
18:30 - 18:45: Pumped 4 m3 1,56 SG slug with 1000 liter/min, 22 bar.
18:45 - 21:00: POOH with 12 1/4" BHA on 5 1/2" DP from 2590 m to 436 m. Average tripping speed 957 m/hr.
21:00 - 21:30: Made up string and took orientation shots.
21:30 - 21:45: POOH with 12 1/4" BHA on 5 1/2" DP from 436 m to 167 m. Average tripping speed 1076 m/hr.
21:45 - 22:00: Flow checked well for 10 min, OK. Meanwhile removed PS-21 slips and installed master bushings.
22:00 - 22:15: POOH with 12 1/4" BHA on 5 1/2" HWDP from 167 m to 97 m. Not able to retrieve gyro due to wrong retrival tool setup.
22:15 - 22:30: Reconfigured gyro retrieval tool.
22:30 - 22:45: Retrieved gyro.
22:45 - 00:00: POOH with 12 1/4" BHA from 97 m to surface and laid down same. Cleaned and cleared drill floor.

24-hour summary: Pressure tested casing to 320 bar. Made up and RIH with 12 1/4" BHA. Drilled out cement and shoe track. Performed fit to 1,55 SG EMW. POOH with 12 1/4" BHA.
Hourly activities:
00:00 - 00:30: Performed pre-job meeting prior to make up 8 1/2" BHA. Changed to 5" handling equipment.
00:30 - 06:00: Picked up and made up 8 1/2" drilling BHA and RIH from surface to 151 meter.
06:00 - 07:15: RIH with 8 1/2" BHA on 5 1/2" HWDP DP from 151 m to 1011 m. Average tripping speed 688 m/hr.
07:15 - 08:00: Tested MWD tools with 2000 liter/min, 118 bar.
08:00 - 10:00: RIH with 8 1/2" BHA on 5 1/2" HWDP DP from 1011m to 2585 m. Average tripping speed 787 m/hr. Filled pipe every 1000 meter.
10:00 - 11:00: Washed down from 2585 m to 2605 m with 1800 liter/min, 111 bar, 60 RPM, 9-13 KNM.
11:00 - 18:45: Drilled and oriented 8 1/2" hole from 2605 m MD to 2779 m MD with 1990 2389 liter/min, 142 207 bar, 60-130 RPM, 11-19 KNM, wob 5-10 ton, ROP 37-42 m/h, 1,31 1,34 SG ECD. Average drilling ROP 23 m/hr meanwhile picked up and racked back 10 3/4" casing in derrick.
18:45 - 00:00: Drilled and oriented 8 1/2" hole from 2779 m MD to 2905 m MD with 2400 2470 liter/min, 207 211 bar, 130-160 RPM, 17-21 KNM, wob 5-12 ton, ROP 39-18 m/h, 1,34 1,35 SG ECD. Average drilling ROP 24 m/hr meanwhile picked up and racked back 10 3/4" casing in derrick.

24-hour summary: POOH and laid down 12 1/4" BHA. Made up and RIH with 8 1/2" drilling BHA. Drilled 8 1/2" hole to 2905 meter.
Hourly activities:
00:00 - 11:15: Drilled and oriented 8 1/2" hole from 2905 m MD to 3145m MD with 2450 2570 liter/min, 202 216 bar, 160 RPM, 18-21 KNM, wob 4-12 ton, ROP 18-25 m/h, 1,35 1,37 SG ECD. Average drilling ROP 21 m/hr meanwhile picked up and racked back 9 5/8" casing in derrick.
11:15 - 11:30: Recorded SCR'S
11:30 - 16:30: Drilled and oriented 8 1/2" hole from 3145 m MD to 3253 m MD with 2570 2707 liter/min, 205 214 bar, 160 RPM, 17-23 KNM, wob 4-8 ton, ROP 18-25 m/h, 1,37 1,39 SG ECD. Average drilling ROP 22 m/hr increased MW from 1,28 SG to 1,32 SG while drilling. Meanwhile picked up and racked back 9 5/8" casing in derrick.
16:30 - 16:45: Pulled off bottom and trouble shoot sonic tool failure. Sonic tool not fuctional.
16:45 - 00:00: Drilled and oriented 8 1/2" hole from 3253 m MD to 3364 MD with 2446 2570 liter/min, 205 213 bar, 160 RPM, 18-23 KNM, wob 4-8 ton, ROP 11-22 m/h, 1,38 1,39 SG ECD. Average drilling ROP 15 m/hr meanwhile picked up and racked back 9 5/8" casing in derrick. Total 44 stands racked back.

24-hour summary: Drilled and orientated 8 1/2" hole from 3145 m MD to 3364 m MD. Picked up and racked back casing offline.
Hourly activities:
00:00 - 05:15: Drilled and oriented 8 1/2" hole from 3364 m MD to 3450 MD with 2389 2565 liter/min, 208 216 bar, 160 RPM, 17-23 KNM, wob 4-10 ton, ROP 9-23 m/h, 1,39 1,40 SG ECD. Average drilling ROP 16 m/hr meanwhile picked up and racked back 9 5/8" casing in derrick.
05:15 - 13:15: Drilled and oriented 8 1/2" hole from 3450 m MD to 3591 m MD with 2389-2435 liter/min, 213 220 bar, 160 RPM, 18-23 KNM, wob 3-5 ton, ROP 5-20 m/h, 1,39 1,40 SG ECD. Average drilling ROP 18 m/hr meanwhile picked up and racked back 9 5/8" casing in derrick.
13:15 - 13:30: Recorded SCR'S.
13:30 - 16:30: Drilled and oriented 8 1/2" hole from 3591 m MD to 3632 m MD with 2389 liter/min, 218 220 bar, 160 RPM, 17-22 KNM, wob 3-5 ton, ROP 5-20 m/h, 1,39 SG ECD. Average drilling ROP 14 m/hr meanwhile picked up and racked back 9 5/8" casing in derrick.
16:30 - 20:45: Circulated hole clean with 2400 liter/min, 218 bar, 142 RPM, 17-19 KNM. Circulated total 2 1/2 x bottoms up.
20:45 - 21:00: Flow checked well for 10 minutes, OK.
21:00 - 21:45: Pumped OOH from 3632 m to 3496 m with 2450 liter/min, 200 bar.
21:45 - 00:00: Attempted to take pressure points. No communication with tool.

24-hour summary: Drilled and orientated 8 1/2" hole from 3364 m MD to 3632 m MD. Circulated well clean. Attempted to take pressure points, tool failure. Picked up and racked back casing offline.
Hourly activities:
00:00 - 00:30: Run back to bottom. POOH wet with 8 1/2" BHA on 5 1/2" DP from 3632 m to 2450 m. Performed pre-job meeting prior to re-logging for 15 minutes.
00:30 - 02:30: Re-logged interval from 3390 m to 3349 m with 2450 liter/min, 210 bar, 90 RPM, 12-21 KNM.
02:30 - 03:30: RIH with 8 1/2" BHA on 5 1/2" DP from 3349 m to 3632 m.
03:30 - 04:30: Filled pipe, observed pressure increase, worked string clear. Circulated with 2450 liter/min, 215 bar, 140 RPM, 12-19 KNM.
04:30 - 05:00: Dropped gyro and pumped down same with 500 liter/min, 20 bar, 20 RPM, 12-18 KNM.
05:00 - 05:15: Flow checked well for 10 minutes, OK.
05:15 - 10:30: POOH wet with 8 1/2" BHA on 5 1/2" DP from 3632 m to 2706 m. Worked tight spots at 3472, 3126, 3075, 3064, 3028 meter. Restricted pulling speed 2 min/stand. Took gyro readings shoots.
10:30 - 10:45: Pumped 4 m3 1,56 SG slug with 1000 liter/min, 22 bar.
10:45 - 11:30: POOH with 8 1/2" BHA on 5 1/2" DP from 2706 m to 2596 m. Restricted pulling speed 2-1 min/stand. Took gyro readings shoots.
11:30 - 11:45: Flow checked well for 10 min, OK.
11:45 - 16:00: POOH with 8 1/2" BHA on 5 1/2" DP from 2596 m to 203 m. Took gyro readings shoots as required
16:00 - 16:30: Flow checked well for 10 min, OK. Held pre-job meeting prior to handling BHA.
16:30 - 16:45: Retrieved gyro from string.
16:45 - 18:15: POOH with 8 1/2" BHA on 5 1/2" HWDP DC from 203 m to 52 m. Racked back laid down BHA.
18:15 - 18:30: Performed pre-job meeting prior to handling radioactive source.
18:30 - 19:00: Removed radioactive source from BHA.
19:00 - 19:30: Held pre-job meeting for 15 minutes. POOH and broke down 8 1/2" BHA from 52 m to 45 m.
19:30 - 20:30: Down loaded data from MWD tool.
20:30 - 21:45: POOH and broke down 8 1/2" BHA from 45 m to surface.
21:45 - 22:00: Cleaned and cleared drill floor.
22:00 - 00:00: Picked up and made up 8 1/2" BHA, RIH from surface to 21 meter.

24-hour summary: Relogged interval from 3496 m to 3349 m. POOH with 8 1/2" drilling BHA. RIH with 8 1/2" logging BHA.
Hourly activities:
00:00 - 01:00: Picked up and made up 8 1/2" BHA, RIH from 21 m to 44 m.
01:00 - 02:15: Plugged into MWD and initialized same.
02:15 - 03:00: Picked up and made up 8 1/2" BHA, RIH from 44 m to 190 m.
03:00 - 03:15: Removed master bushings and installed PS-21 power slips.
03:15 - 04:15: RIH with 8 1/2" BHA on 5 1/2" HWDP DP from 190 m to 997 m. Average tripping speed 807 m/hr.
04:15 - 05:15: Filled pipe and shallow tested MWD tools at 2400 liter/min, 121bar.
05:15 - 06:15: RIH with 8 1/2" BHA on 5 1/2" DP from 997 m to 1800 m. Average tripping speed 803 m/hr.
06:15 - 06:30: Emtied trip tank and filled pipe.
06:30 - 07:30: RIH with 8 1/2" BHA on 5 1/2" DP from 1800 m to 2571 m. Average tripping speed 771 m/hr.
07:30 - 07:45: Filled pipe.
07:45 - 08:00: Performed pre-job meeting prior to slip cut.
08:00 - 10:30: Rigged up, slipped and cut drill line. Calibrated block after slip cut.
10:30 - 11:15: RIH with 8 1/2" BHA on 5 1/2" DP from 2571 m to 2936 m. Reduced speed due to hole condition.
11:15 - 12:15: Washed and reamed tight spot between 2936 m and 2976 m with 2000 liter/min, 120 bar, 80 RPM, 8-16 KNM.
12:15 - 12:30: RIH with 8 1/2" BHA on 5 1/2" DP from 2976 m to 3215 m. Reduced speed due to hole condition.
12:30 - 13:30: Washed and reamed tight spots between 3175 m and 3215 m with 2000 liter/min, 121 bar, 80 RPM, 8-16 KNM.
13:30 - 13:45: RIH with 8 1/2" BHA on 5 1/2" DP from 3215 m to 3264 m. Reduced speed due to hole condition.
13:45 - 17:30: Washed and reamed string down from 3264 m to 3632 m with 1000 liter/min, 44 bar, 50 RPM, 8-13 KNM. At 3286 m hole packed off, stopped pumps and slided through obstruction.
17:30 - 20:30: Circulated hole clean with 2450 liter/min, 185 bar, 130-150 RPM, 14-19 KNM. Reciprocated string. Circulated total 3 x bottoms up.
20:30 - 20:45: Flow checked well for 10 min, OK.
20:45 - 21:15: POOH wet with 8 1/2" BHA on 5 1/2" DP from 3620 m to 3499 m.
21:15 - 00:00: Recorded pressure points.

24-hour summary: RIH with 8 1/2" logging BHA on DP. Washed and reamed tight spots. Slipped cut drill line. Circulated 3 x bottoms up. Recorded pressure points.
Hourly activities:
00:00 - 01:00: Recorded pressure points.
01:00 - 01:30: RIH with 8 1/2" BHA on 5 1/2" DP from 3347 m to 3620 m. Reduced speed due to hole condition.
01:30 - 07:45: Back reamed OOH while re-logging from 3620 m to 3333 m with 2540 liter/min, 170 bar, 100 RPM, 12-22 KNM.
07:45 - 09:15: Observed tight spot at 3333 meter, attempted to work through without rotation. Hole packed off. Pulled back to 3295 without flow. Ran back in to 3335 with 1650 liter/min, 87 bar. Re-logged stand from 3333 m to 3295 m.
09:15 - 10:30: Pumped OOH from 3295 m to 3257 m, experienced tight hole. Ran back in to 3273 m without circulation. Re-logged stand from 3273 m to 3255 m.
10:30 - 19:30: Back reamed OOH while re-logging from 3255 m to 2652 m with 2540 liter/min, 160-168 bar, 100-120 RPM, 11-21 KNM.
19:30 - 20:30: POOH while re-logging from 2652 m to 2584 m with 2540 liter/min, 160-168 bar.
20:30 - 21:45: Circulated bottoms up with 2430 liter/min, 218 bar, 130 RPM.
21:45 - 22:15: Flow checked well, OK.
22:15 - 22:30: Function tested BOP.
22:30 - 23:00: Pumped 4 m3 1,56 SG slug with 1000 liter/min, 22 bar.
23:00 - 00:00: POOH with 8 1/2" BHA on 5 1/2" DP from 2584 m to 1800 m. Average tripping speed 784 meter/hr.

24-hour summary: Re-logged open hole with sonic tool. POOH with 8 1/2" logging BHA.
Hourly activities:
00:00 - 01:15: POOH with 8 1/2" BHA on 5 1/2" DP from 1800 m to 877 m. Average tripping speed 723 meter/hr. Stopped due to fault on iron roughneck.
01:15 - 02:00: Repaired electical failure on iron roughneck. Meanwhile observed well on trip tank.
02:00 - 02:45: POOH with 8 1/2" BHA on 5 1/2" DP from 877 m to 190 m. Average tripping speed 916 meter/hr.
02:45 - 03:00: Flow checked well for 10 min, OK.
03:00 - 04:00: POOH with 8 1/2" BHA on 5 1/2" HWDP from 190 m to 43 m. Laid down jar and accelerator.
04:00 - 04:15: Changed handling equipment.
04:15 - 06:00: Plugged into MWD tool and down loaded data.
06:00 - 07:15: Continued laying down BHA from 43 m to surface
07:15 - 08:00: Cleaned and cleared rig floor after l/d BHA. Changed handling gear in IR and BX elevator. Removed master bushing and installed PS 21. Moved rollers on cantilever.
08:00 - 08:45: Picked up 3 1/2" DP singles, made up and RIH open ended from surface to 143 m.
08:45 - 09:15: Experienced bad connection, checked threads, cleaned box and pin. Retried to m/u no success. Layed out two singles of 3 1/2" DP
09:15 - 10:15: Continued p/u 3 1/2" DP singles and RIH from 143 m to 325 m
10:15 - 10:45: Changed handling equipment from 3 1/2" to 5 1/2"
10:45 - 12:30: RIH w/ cement stinger on 5 1/2" DP from 325 m to 2550 m Avg. Tripping speed 1270 m/hr.
12:30 - 13:15: Broke circulation at 2550 m. Staged up flow and circulated w/ 2450 l/min, 170 bar
13:15 - 14:45: RIH in open hole from 2550 m to 3154 m, restricted running speed due to open ended stinger. Avg. Tripping speed 400 m/hr
14:45 - 15:00: Broke circulation at 3154 m. Circulated w/ 1330l/min, 60 bar
15:00 - 15:45: Cont. RIH in open hole from 3154 m to 3594 m. Restricted running speed due to open ended stinger.
15:45 - 16:15: Established circulation and washed down last stand with 500 LPM, 20 bar. Tagged bottom at 3632 m.
16:15 - 18:00: Staged up pumps to 2500 LPM 190 bar. Circulated hole clean. Reciprocated and rotated pipe with 60 120 RPM while circulating.
18:00 - 18:30: Layed out one single. P/u and m/u cement assy. Connected cement hose
18:30 - 20:15: Established circulation, circulated b/u prior to cement job with 2450 LPM, 187 bar. Performed TBT for setting cement plug
20:15 - 21:30: Balanced cement plug m 3353 m pumped 11,8 m3 of 1,60 SG spacer, 800 l/min/ 30 bar. Mixed and pumped 13,3 m3 of 1,90 SG cement slurry, 600 l/min. Displaced the cement to the rig floor with 890 l of drill water.
21:30 - 22:00: Zeroed volume counters. Pumped 5,2 m3 of 1,60 SG spacer. Displaced the cement with 31,6 m3 strokes) of 1,32 SG OBM, 2450 l/min/ 180 bar at 30 RPM.
22:00 - 22:15: Broke off cement line, layed out cement assy.
22:15 - 22:45: Pulled out of cement to 3350 m MD. Restricted speed to 3 min/stand
22:45 - 00:00: Made up TDS and circulated out excess cement, 2450 LPM, 200 bar, 80 RPM, 12 KNM.

24-hour summary: POOH out of hole with 8 1/2" BHA, l/d BHA. RIH with 3 1/2" cement stinger on 5 1/2" DP to 3632 m. Circulated and conditioned well before cement job. Set cement plug from 3632 to 3353 m.
Hourly activities:
00:00 - 00:45: Circulated out excess cement, 2450 LPM, 200 bar, 80 RPM, 12 KNM. Performed TBT for setting cement plug
00:45 - 01:15: M/u cement assy and installed cement hose. Tested line to 200 bar for 5 min
01:15 - 03:00: Balanced cement plug m 3074 m pumped 11,8 m3 of 1,60 SG spacer, 800 l/min/ 29 bar. Mixed and pumped 13,3 m3 of 1,90 SG cement slurry, 600 l/min. Displaced the cement to the rig floor with 890 l of drill water. Zeroed volume counters. Pumped 5,2 m3 of 1,60 SG spacer. Displaced the cement with 28 m3 strokes) of mud, 2450 l/min/ 114 170 bar at 30 RPM.
03:00 - 03:45: Broke off cement hose, layed out cement assy. Pulled out of cement to 3070 m. Restricted pulling speed to 3 min/stand
03:45 - 06:00: Circulated out excess cement, 2450 l/min/ 188 bar at 80 RPM, 12 KNM.
06:00 - 09:00: Circulated and conditioned mud prior to setting cement plug and mixed new spacer.
09:00 - 09:30: Rigged up cement assy, installed cement hose and positioned string at 3070 m
09:30 - 10:45: Balanced cement plug m 2795 m pumped 11,8 m3 of 1,60 SG spacer, 600 l/min/ 10 25 bar. Mixed and pumped 13,3 m3 of 1,90 SG cement slurry, 600 l/min. Displaced the cement to the rig floor with 890 l of drill water. Zeroed volume counters. Pumped 5,2 m3 of 1,60 SG spacer. Displaced the cement with 25,1 m3 strokes) of mud, 2500 l/min/ 100 155 bar at 25 RPM.
10:45 - 11:00: Layed out cement assy.
11:00 - 11:30: Pulled out of cement to 2790 m MD. Restricted pulling speed to 2 3 min/stand
11:30 - 14:00: Circulated out excessive spacer and cement at 2790 m, 2500 LPM, 172 bar, 80 RPM.
14:00 - 14:15: Made up cement assy, installed cement hose, positioned string at 2790 m. Confirmed line-up.
14:15 - 15:45: Cement/ko plug m 2545 m pumped 11,8 m3 of 1,60 SG spacer, 800 l/min/ 10 25 bar. Mixed and pumped 13,4 m3 of 2,00 SG cement slurry, 600 l/min. Displaced the cement to the rig floor with 890 l of drill water. Zeroed volume counters. Pumped 1,3 m3 spacer. Displaced the cement with 26,8 m3 strokes) of mud, 2500 l/min/ 140 170 bar at 25 RPM.
15:45 - 16:15: Pulled out of cement to 2590 m. Restricted pulling speed to 2 3 min/stand.
16:15 - 18:45: Installed sponge balls, circulated out excessive cement and hole clean, 2500 LPM, 170 180 bar at 60 120 RPM. Reciprocated string.
18:45 - 19:00: Flowchecked well for 15 min. Well static.
19:00 - 19:15: Pumped slug
19:15 - 19:45: POOH w/ 3 1/2" cement stinger on 5 1/2" DP from 2590 m to 2180 m Avg. Tripping speed 820 m/hr.
19:45 - 20:15: Carriage travel fault on iron roughneck, identified faulty cable, rectified and secured same
20:15 - 22:15: POOH w 5 1/2" DP from 2180 m to 326 m Avg. Tripping speed 927 m/hr.
22:15 - 22:30: Flowchecked well for 15 min. Well static. Meanwhile changed handling equipment from 5 1/2" to 3 1/2".
22:30 - 00:00: L/d 34 joints of 3 1/2 DP, 26 jnts/hr.

24-hour summary: Set cement plug from 3350 to 3070 m. Set cement plug from 3070 to 2790 m. Set cement plug from 2790 to 2545 m. POOH with cement string and l/d 3 1/2" cement stinger