bengsoon/volve_alpaca huggingface dataset:
Hourly activities:
00:00 - 05:45: Ran 13 3/8" casing from 380 m to 800 m MD. Filled casing with 1,40 SG WBM every 5th joint. Average running speed 6 joints/hr.
05:45 - 06:00: Rearranged catwalk machine to pick casing from FWD STB bay.
06:00 - 11:30: Ran 13 3/8" casing from 800 m to 1198 m MD. Filled casing with 1,40 SG WBM every 5th joint. Average running speed 6 joints/hr.
11:30 - 11:45: Held toolbox talk prior to rigging down casing running equipment.
11:45 - 14:30: Removed PS-30 slips and installed master bushing. Removed 500t slip elevator. Removed FAC circulation tool. Removed casing bails and installed drilling bails and 5 1/2" elevator.
14:30 - 14:45: Held toolbox talk prior to picking up 13 3/8" x 18 3/4" subsea wellhead.
14:45 - 15:30: Picked up 13 3/8" x 18 3/4" subsea wellhead and made up to 13 3/8" casing. Ran in with casing and well head to 1214 m MD and hung off in rotary.
15:30 - 15:45: Held toolbox talk prior to removing casing tong.
15:45 - 16:30: Rigged down casing tong and panels and removed from drillfloor.
16:30 - 17:15: Ran in hole with casing and wellhead on 5 1/2" HWDP landing string from 1214 m to 1345 m MD. Circulated last stand down with 500 LPM.
17:15 - 18:00: Picked up cement head with premade pup joint and made up same to landing string and TDS. Took up/down weights 219/144 MT. Broke circulation with 500 LPM and landed 18 3/4" subsea wellhead in 30" conductor housing according to vetco instructions.
18:00 - 19:45: Circulated and condtioned well before cementing. Pumped at 2300 LPM. Standpipe pressure decreased from 37 bar to 20 bar after 200 m3 pumped. Prepared for pumping cement. Observed problem with mudpumps.
19:45 - 20:45: Inspected mudpump#1 and revealed that swab and liner needed to be changed. Questioned if mudpump was ready for operation. Tested mudpump and approved for operation.
20:45 - 23:45: Dropped ball to activate lower wiper plug. Mixed and pumped 126 m3 1,56 SG lead cement followed by 20 m3 1,92 SG tail cement. Pump rate 800 to 1200 LPM pumping pressure 20 bar. Displaced cement line with 890 liter seawater.
23:45 - 00:00: Released dart in cement head. Pumped 3 m3 seawater with cement unit at 1200 LPM. After pumping approx 1 m3, observed shear of upper wiper plug by 120 bar pressure peak. Closed lo-torque on cement head and lined up to pump with mudpumps.

24-hour summary: Ran 13 3/8" casing to TD. Rigged down casing running equipment. Made up and ran 13 3/8" x 18 3/4" wellhead and landed same in conductor housing. Cemented 13 3/8" casing. Washed template. Pulled out cart on landing string.
Hourly activities:
00:00 - 05:30: In parallel with tenison cylinder hook-up activities rigged up chainhoists and attached to tension ring. Removed vinyl protector guide. Installed centralizer in centralizer deck. Removed scaffolding and barriers at centralizer deck. Installed boat collision stool. Made up contact ring to three lowermost groves on serrated area. Assembled tensioning assembly and made up to tension ring. Removed chainhoists. At 05 30 operations had progressed to the point where tension cylinders support was required.
05:30 - 06:00: Continued working on tension cylinders. Meanwhile started moving BOP from test stump to trolley.
06:00 - 11:00: Worked on tension cylinders.
11:00 - 14:30: Made up tensioning assembly to two pistions and elavated tensioning assembly to contact ring. Applied 2 x 20 MT tension. Made up the two other tension cylinders to tensioning assembly. Installed shimm ring underneath tensioning assembly.
14:30 - 15:30: Transferred tension from block to tension cylinders. Applied 4 x 20 MT on tension cylinders.
15:30 - 17:30: Broke out claxton tool from BOP joint with hy-torq tool. Pullled 5 1/2" landing stand, broke out same and racked back in derrick.
17:30 - 17:45: Removed master bushing. Pulled claxton tool and laid out same. Found 1 o-ring missing on claxton tool and 1 o-ring bursted.
17:45 - 18:00: Held toolbox talk prior to skidding BOP.
18:00 - 18:15: Attempted to break out 4 remaining studs on NT-2 connector negative, not able to break studs within torque limit.
18:15 - 22:45: Not able to break studs on NT-2 connector. Attempted to adjust BOP to neutral weight on the NT-2 conncetor still not able to break studs. Torque tool socket adapter broke, repaired adapter. Traced new and more powerful adapter and used same for making/breaking. Re-made all studs in attempt to break the jammed studs. Untorqued the 4 studs in question OK. Continued BOP nippling operation. Meanwhile TDS support beams on forward PRS standpipe standpipe manifold 5/10 min 20/345 bar
22:45 - 00:00: Untorqued all studs on NT-2 connector. Lifted BOP off test stump and skidded to well centre.

24-hour summary: Worked on tension cylinders on centralizer deck. Made up tensioning assembly to tension cylinders. Transferred tension from block to tension cylinders. Broke and laid out claxton tool. Skidded BOP from STB side to wellcenter. Made up BOP to riser. Attached BOP tensioning system.
Hourly activities:
00:00 - 06:00: Landed BOP on riser NT-2 profile. Made up NT-2 connector. Made up tension cylinders to BOP. Meanwhile forward PRS BOP overshot joint cement/kill manifold 5/10 min 20/345 bar BOP test tool
06:00 - 07:30: Hooked up tension cylinder to BOP. Closed shear ram an lined up for testing down well from cement unit. Meanwhile finished off testing choke manifold.
07:30 - 08:30: Pressure tested 13 3/8" casing using seawater to 20/190 bar 5/10 min OK. Pumped 1 m3 and bled back 1 m3. Opened shear ram.
08:30 - 09:45: RIH with BOP testplug on 5 1/2" HWDP. Landed plug at 139 m MD and set down 4 MT on plug.
09:45 - 10:30: Closed MPR. Pressure tested BOP connector, riser, wellhead and TBC connector to 20/345 bar 5/10 mins OK.
10:30 - 11:00: Function tested BOP.
11:00 - 12:00: POOH with vetco test plug on 5 1/2" HWDP and laid down same.
12:00 - 12:15: Held toolbox talk prior to removing diverter.
12:15 - 12:45: Removed diverter from rotary.
12:45 - 13:00: Held toolbox talk prior to installing overshot joint and diverter.
13:00 - 14:30: Installed overshot and made up to flange on BOP body.
14:30 - 15:00: Installed diverter in rotary and locked same in place.
15:00 - 15:30: Held time out for safety meeting with rig crew.
15:30 - 17:15: Continued to nipple up overshot. Removed diverter bails. Installed bushings for manual slips.
17:15 - 17:30: Held toolbox talk prior to rigging for and testing IBOP and kelly hose.
17:30 - 20:45: Rigged up testing swage with weco and hooked up hose. Tested upper and lower IBOP to 20/345 bar 5/10 min. Broke out swage. Checked dies on aft PRS. Cleared v-door before picking up BHA.
20:45 - 21:00: Held toolbox talk prior to picking up 12 1/4" BHA.
21:00 - 21:30: Picked up and RIH with powerdrive, hung off in slips. Made up and run in with powerdrive, powerpulse, NMDC and 8" DC double.
21:30 - 22:45: Held time out for safety meeting with rig crew for nigthshift.
22:45 - 00:00: Made up and ran in with powerdrive, powerpulse, arcm NMDC and pony. Made up 2 x 8" DC double. Observed leakage on flange between overshot and BOP.

24-hour summary: Pressure tested 13 3/8" casing to 190 bar. Pressure tested BOP connector to 345 against test plug in subsea wellhead. Installed diverter and overshot joint. Tested IBOP and standpipe. RIH with 12 1/4" drilling BHA to 600 m MD. Repaired leakage on overshot joint.
Hourly activities:
00:00 - 01:30: Laid down jar from derrick. Picked up new jar from deck and made up to BHA. Meanwhile worked to repair leaking flange. Observed that flange appeared to be biased towards one side.
01:30 - 02:45: Broke and thigthened bolts as required whilst levelling BOP
02:45 - 04:45: Made up 8" DC stand and x-over. Installed automatic slips in rotary. RIH with 12 1/4" drilling BHA on 4 stands of 5 1/2" HWDP to 135 m MD.
04:45 - 06:00: RIH with 12 1/4" drilling BHA from 135 m MD to 600 m MD.
06:00 - 07:15: Ran in hole with 12 1/4" drilling BHA from 600 m to 1000 m MD. Inspected slips on PRS.
07:15 - 07:30: Held toolbox talk prior to routing SW returns overboard.
07:30 - 08:15: Established circulation rate at 1500 LPM. Tested MWD according to schlumberger procedure OK.
08:15 - 09:15: Ran in hole with 12 1/4" drilling BHA from 1000 m to 1300 m MD. Performed kick drill.
09:15 - 09:30: Made up TDS and washed down from 1300 m. Tagged cement at 1336,5 with 1500 LPM SPP 54 bar. Took up/down weights 135/115 MT.
09:30 - 10:30: Conducted choke drill.
10:30 - 19:00: Drilled 13 3/8" shoetrack from 1336,5 m to 1348 m MD with seawater. Drilling parameters flow 2500 LPM SPP 50-65 bar 30-50 RPM wob 2-10 MT torque 10-27 KNM. Pumped hi-vis sweeps
19:00 - 21:45: Drilled shoetrack from 1348 m to 1350 m MD. Meanwhile held pre-job meeting before displacing well to 1,40 OBM. Emptied slurry holding tank into pit and to obtain more buffer for cuttings slurry. Pumped hi-vis Displaced well from seawater to 110 m3 1,40 OBM. Stopped pumping when OBM interface at surface.
21:45 - 22:45: Pumped 5 m3 seawter/obm interface to pit Pumped treatable interface of 10 m3 to pit Filled sandtraps and shaker pits with 1,40 SG OBM. Total active volume 185 m3.
22:45 - 00:00: Drilled shoetrack from 1350 m to 1351,5 m MD. Drilling parameters flow 2600 LPM SPP 101 bar 60 RPM wob 5 MT torque 6-7 KNM. Hard to make progress at 1351,5 m MD.

24-hour summary: Ran in hole with 12 1/4" drilling BHA from 600 m to 1337 m MD. Drilled 13 3/8" shoetrack. Drilled/washed rathole down to 1360 m and drilled 3 m new formation. Circulated before fit. Performed fit to 1,53 SG, leaking off steadily. Circulated prior to performing new fit.
Hourly activities:
00:00 - 00:30: Continued drilling on shoe, hard to make progress. Reduced RPM to 40 and reduced flow to 2200 LPM. Increased wob steadily from 5 to 7 MT and broke through shoe.
00:30 - 02:00: Drilled rathole, reamead back to shoe for every 2 m drilled. Flow 2600 LPM SPP 101 bar 60 RPM wob 5 MT torque 6-7 KNM.
02:00 - 03:30: Drilled 3 m new formation prior to fit. Circulated well to obtain even MW in and out 1,39 SG heavy in/out. Used 1,395 SG for fit calculation.
03:30 - 04:30: Pulled bit inside casing shoe at 1350 m MD. Lined up for fit test to pump down pipe and annulus. Closed annular. Pressured up to 7 bar to fill standpipe and kill line and observed rapid increase in pressure curve deflection. Pumped 121 liter up to 17 bar. Pressure fell to 13 bar over 15 min, steady leakage rate. Bled back 50 liter.
04:30 - 06:00: Discussed quality of fit. Down linked MWD for ESD, got ESD figure of 1,37 SG. Decided to line up for new fit. Circulated and lined up for new fit.
06:00 - 07:30: Circulated on well at 3500 LPM to obtain even MW in/out. Leak tested kill line to HCR to 20 bar-ok. Obtained 1,39 SG MW in/out. Racked back 1 stand.
07:30 - 08:30: Lined up for fit. Reset pressure to zero bar. Pressured up to 6,5 bar at 50 LPM to fill standpipe and kill line and observed rapid increase in pressure deflection. Continued pumping at 50 LPM up to fit pressure of 18 bar. Pumped 100 liter up to 18 bar 1,53 EMW. Pressure fell to 13 bar after 15 mins with steady leakage rate. Bled back 50 liter.
08:30 - 09:45: Stepped up pumps and RPM. Drilled 2 m of new formation. Took surveys and downlinked tools according to schlumberger instruction. Downlinked and set powerdrive according to DD instructions.
09:45 - 17:30: Drilled 12 1/4" section from 1365 m to 1544 m MD. Drilling paramters flow 3500 LPM SPP 171-178 bar 130-170 RPM wob 2-4 MT torque 1-4 KNM. Average ROP 23 m/hrs. Reamed 1 single before connection. Took scrs at 1504 m MD.
17:30 - 18:00: Inspected TDS due to excessive noise. Found worn area on upper IBOP actuator sleeve.
18:00 - 19:15: Drilled 1 stand from 1544 m to 1584 m MD while observing monitoring upper IBOP actuator sleeve. Halted operations for troubleshooting.
19:15 - 21:15: Decided to pull 12 1/4" drilling BHA into casing shoe for TDS repair. Circulated hole clean with 2-3 bottoms up at 3500 LPM.
21:15 - 21:30: Flowchecked well for 15 min well static.
21:30 - 00:00: Installed mud bucket. Pulled 12 1/4" drilling BHA from 1585 m MD to 1343 m MD.

24-hour summary: Circulated to obatin even MW in/out. Performed fit to 1,53 SG. Drilled 12 1/4" hole section from 1363 m to 1585 m MD. Observed wear on actuator sleeve for upper IBOP. Circulated hole clean and pulled into casing shoe. Started repair on TDS/IBOP.
Hourly activities:
00:00 - 01:00: Circulated bottoms up with 2300 LPM inside shoe. Installed circulating swedge. Lined up for moinitoring well on triptank.
01:00 - 06:00: Dismantled IBOP assembly from TDS. Helicopter arrived at 05 00 with new upper IBOP assy.
06:00 - 10:15: Assembled new IBOP.
10:15 - 11:30: Made up swage for pressure testing IBOP assy. Tested IBOP and connections to 20/345 bar 5 min OK. Broke out and laid out test assy.
11:30 - 14:30: Continued working on TDS/IBOP. Greased and serviced TDS. Installed drilling bails and tilt arm.
14:30 - 15:15: Held toolox talk and installed automatic slips in rotary.
15:15 - 17:15: RIH with 12 1/4" drilling BHA from 1343 m to 1503 m MD. Made up TDS and washed down from 1503 m to 1584 m MD with 1700 LPM. Took up/down weight 125/117 MT.
17:15 - 17:45: Took MWD survey. Stepped up pump and rotation to obtain drilling parameters. Standpipe pressure fell rapidly when reaching 130 bar. Unclear indications. Attempted to pump and observed that pop off valve had triggered. Mud returns from pop off ventline went down to pit which overflowed pit and pit room. Halted operation.
17:45 - 20:00: Mechanical pop-off valve had taken damage and nedeed to be replaced. No spare available. Blinded off line with lo-torqe valve and lined both mudpump#1 and mudpum#2 pumps to one pop-off valve. Mudpump still dedicated for barite injection in spudcans. Meanwhile troulble shooting on pop-off, circulated with 800-1000 LPM and resiprocated string.
20:00 - 23:00: Drilled 12 1/4" section from 1585 m to 1640,5 m MD. Drilling parameters flow 3500 LPM SPP 180 bar 130-170 RPM wob 2-3 MT torque 10-12 KNM. Average ROP 19 m/hrs. Reamed 1 single before connection. Not able to handle cuttings return from well.
23:00 - 00:00: Not able to handle cuttings return from well. Conveyer screw from shakers to skip shute blocked. Still circulating on mill tank to get cuttings slurry within viscosity specification.

24-hour summary: Replaced IBOP and tested same. Got problems with pop-off and overflow when recommencing drilling. Repaired pop-off. Drilled 12 1/4" hole section from 1585 m to 1706 m MD with reduced ROP due to problems with handling oilbased cuttings.
Hourly activities:
00:00 - 00:30: Continued working on unblocking the conveyor screw. Pumped DCI active volume to holding tank.
00:30 - 06:00: Drilled 12 1/4" section from 1640,5 m to 1706 m MD. Drilling parameters flow 3500 LPM SPP 180 bar 130-170 RPM wob 0-2 MT torque 10-12 KNM ECD 1,42. Average ROP 12 m/hrs. Drilled with reduced ROP when going directly to skips. Worked to bring down vicosity in DCI milltank/active before injecting slurry.
06:00 - 09:00: Drilled 12 1/4" section from 1706 m to 1750 m MD. Drilling parameters flow 3500 LPM SPP 180 bar 170 RPM wob 2-3 MT torque 8-12 KNM ECD 1,42. Average ROP 12 m/hrs. Drilled with reduced ROP when going directly to skips. Worked to bring down vicosity in DCI milltank/active before injecting slurry. Changed out cooling water on mp2.
09:00 - 09:30: Picked off bottom due to problems with cutting shute blocking up. Circulated 2000 LPM 65 bar.
09:30 - 12:00: Circulated hole clean at 1730 m with 3500 LPM 174 bar 30-80 RPM. While circulating, evaluated risk involved with siemens software update on power management system during drilling operation.
12:00 - 00:00: Waiting on siemens software update. Meanwhile flow checked well before POOH POOH from 1750 m to 1530 m. Up weight 140 MT down weight 124 MT. Monitored well on trip tank at 1530 m. OK. POOH from 1530 to inside CSG shoe at 1340 m MD. continued with PMS and housekeeping/cleaning. continued injecting cuttings into f-12 and flushed with 2 x annulus volumes of water. repaired barite hopper b.

24-hour summary: Drilled 12 1/4" hole section from 1706 m to 1750 m with reduced ROP due to problems with handling oilbased cuttings. Picked off bottom due to problems with cutting shute blocking. Circulated hole clean at 1730 m. POOH and into CSG shoe at 1340 m due to siemens software upload. RIH from 1340 m to 1750 m. Drilled 12 1/4" hole section from 1750 m to 1787 m MD.
Hourly activities:
00:00 - 00:30: Waiting on siemens software update.
00:30 - 03:30: Removed TIW valve. RIH with 12 1/4" drilling BHA from 1340 m to 1706 m MD. Made up TDS and washed down from 1706 m to 1750 m MD with 2500 LPM 98 bar. Took up/down weight 143/121 MT.
03:30 - 04:00: Established parameters and downlinked tool as per DD'S instruction.
04:00 - 06:00: Drilled 12 1/4" section from 1750 m to 1787 m MD. Drilling parameters flow 3500 LPM SPP 187 bar 170 RPM wob 2-3 MT torque 9-14 KNM ECD 1,43. Average ROP 25 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required.
06:00 - 00:00: Drilled 12 1/4" section from 1787 m to 2178 m MD. Drilling parameters flow 3500 LPM SPP 186-194 bar 170 RPM wob 0-5 MT torque 11-13 KNM ECD 1,43-1,44. Average ROP 35 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required. Observed erratic data on resestivity log from 2030 mmd mmd sencor depth). Resistivity sensor non-functional from 2010 mmd at 18 00 hrs. Cuttings return routed to skips due to slurry transfer pump is out of operation.

24-hour summary: Drilled 12 1/4" hole section from 1787 m to 2275 m MD.
Hourly activities:
00:00 - 03:00: Drilled 12 1/4" section from 2178 m to 2230 m MD. Drilling parameters flow 3500 LPM SPP 194-197 bar 170 RPM wob 2-7 MT torque 13-15 KNM ECD 1,44. Average ROP 35 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required. Cuttings return routed to skips due to slurry transfer pump is out of operation.
03:00 - 03:30: Changed liner spray on MP#2.
03:30 - 06:00: Drilled 12 1/4" section from 2230 m to 2275 m MD. Drilling parameters flow 3500 LPM SPP 197 bar 170 RPM wob 2-7 MT torque 14-16 KNM ECD 1,44. Average ROP 35 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required. Cuttings slurry routed to boat due to injection pump is out of operation.
06:00 - 08:00: Drilled 12 1/4" section from 2275 m to 2311 m MD. Drilling parameters flow 3500 LPM SPP 197 bar 170 RPM wob 2-5 MT torque 14-15 KNM ECD 1,44. Average ROP 35 m/hrs. Reamed 1 stand before connection. Down linked and performed surveys as required.
08:00 - 09:00: Cleaned out water in cooling tank on MP#2. Meanwhile picked off bottom and circulated at 1750 LPM 55 bar 20 RPM.
09:00 - 10:00: MP#2 had to be replaced by MP#3 due to leaking swab. MP#3 had been run in test mode and charge pumpe had to be de-isolated. Meanwhile picked off bottom and circulated and reciprocated string at 1750 LPM 55 bar 20 RPM.
10:00 - 15:00: Drilled 12 1/4" section from 2311 m to 2377 m MD. Drilling parameters flow 3500 LPM SPP 200-205 bar 170 RPM wob 4-7 MT torque 13-15 KNM ECD 1,43-1,45. Average ROP 10-35 m/hrs. Reamed 1 stand before connection. Down linked and performed surveys as required.
15:00 - 16:00: Valve in cutting injection system would not open. Hydraulic oil was drained from closing side of automatic valve to make it open. Meanwhile cleaned out cooling water on MP#3. Meanwhile picked off bottom and circulated at 1750 LPM 55 bar 20 RPM.
16:00 - 00:00: Drilled 12 1/4" section from 2377 m to 2497 m MD. Drilling parameters flow 3500 LPM SPP 200-205 bar 170 RPM wob 4-7 MT torque 15-20 KNM ECD 1,43. Average ROP 35 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required. Lined over from MP#3 to MP#2 at 21 45.

24-hour summary: Drilled 12 1/4" hole section from 2275 m to 2626 m MD.
Hourly activities:
00:00 - 06:00: Drilled 12 1/4" section from 2497 m to 2626 m MD. Drilling parameters flow 3500 LPM SPP 205 bar 170 RPM wob 4-7 MT torque 16-18 KNM ECD 1,44. Average ROP 35 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required. Started injecting cuttings slurry into f-12 annulus at 03 30. Turned back time 1 hour at 03 00 due in norway.
06:00 - 00:00: Drilled 12 1/4" section from 2626 m to 2770 m MD. Drilling parameters flow 3500 LPM SPP 209-211 bar 160-180 RPM wob 4-10 MT torque 15-22 KNM ECD 1,43-1,44. Average ROP 1-10 m/hrs. Reamed 1 single before connection. Down linked and performed surveys as required. Started injecting cuttings slurry into f-12 annulus at 20 10.

24-hour summary: Drilled 12 1/4" hole section from 2626 m to TD at 2770 m MD. Circulated well clean. Dropped gyro. POOH to 2525 m MD taking gyro survey on every stand.
Hourly activities:
00:00 - 00:30: Drilled 12 1/4" section from 2768 m to 2770 m MD. Drilling parameters flow 3500 LPM SPP 203 bar 170 RPM wob 7 MT torque 15-20 KNM ECD 1,43. Average ROP 1-4 m/hrs.
00:30 - 02:30: Circulated 2 btms up at 2770 m MD, 3500 LPM 200 bar 170 RPM 13-15 KNM to clean well. Took one roadmap measurement, 200 LPM and 60 RPM. Up weight 175 MT. Down weight 156 MT.
02:30 - 03:30: Bo one STD, RU and dropped gyro. Pumped down tool, 550 LPM 7 bar 15 RPM and landet off on totco ring on top off jar in BHA.
03:30 - 03:45: Flow checked well while rotating with 10 RPM. Sat tool face on drop gyro.
03:45 - 06:00: Pulled first 5 stnds wet from 2768 to 2550 m MD. No drag observed. Pumped 4,7 m3 1,65 SG slug at 880 LPM 22 bar. Continued POOH to 2525 m MD. Gyro survey was performed on each stand.
06:00 - 12:15: POOH with 12 1/4" BHA from 2525 m to 1330 m MD. No overpull observed. No obstruction met pulling into 13 3/8" CSG shoe. Performed gyro survey on each stand. Oriented string to confirm toolface every 300 m as instructed by gyro data. Corrected ZMS interlock fault on aft PRS.
12:15 - 13:15: Function tested BOP while circulated through choke and kill lines at 13 3/8" CSG shoe. Serviced TDS. Flow checked before POOH with 12 1/4" BHA in casing.
13:15 - 15:45: POOH with 12 1/4" BHA from 1330 m to 90 m MD. Performed gyro survey on each stand. Oriented string to confirm toolface every 300 m as instructed by gyro data.
15:45 - 22:00: Removed auto-slips from rotary and inserted master bushings. Lo 12 1/4" BHA from 90 m to surface.
22:00 - 00:00: MU up wear bushing RT assembly and RIH with same from surface to 138 m. Tool landed off at 139. 05 m. Jetted BOP and wellhead, 1650 LPM 8 bar.

24-hour summary: POOH from 2525 m taking gyro survey on every stand. LD BHA and drop gyro. Pulled wear bushing. RU for running 10 3/4" x 9 5/8" CSG.
Hourly activities:
00:00 - 02:30: POOH with wear bushing and lo same.
02:30 - 03:30: MU CMT head assembly and RB in derrick.
03:30 - 06:00: Cleared and tidied rig floor off excess equipment. RU CSG tong, handling equipment and FAC tool. Prepared to run 9 5/8" CSG.
06:00 - 09:00: RU CSG tong and handling equipment. Prepared to run 9 5/8" CSG.
09:00 - 10:00: Sorted out power supply problem for CSG. Tong.
10:00 - 12:00: Installed elevators, flush mounted slips, bails and FAC circulating tool. Prepared to run 9 5/8" CSG.
12:00 - 17:00: Held tool-box meeting before running CSG. PU and MU shoe joint, intermediate- and float collar joints. Thread locked first 3 connections. Checked shoe and float collar for flow-through while PU. RIH with 9 5/8" CSG to 171 m MD. Filled every joint with 1. 40 SG mud using FAC tool.
17:00 - 22:00: Casing torque computer would not work according to set up. Had to continue with modified set-up.
22:00 - 00:00: RIH with 9 5/8" CSG from 171 to 276 m MD. Filled every joint with 1. 40 SG mud using FAC tool. First 19 joint was ran with centraliser.

24-hour summary: RU for running 10 3/4" x 9 5/8" CSG. MU and RIH with 10 3/4" x 9 5/8" CSG to 587 m MD.
Hourly activities:
00:00 - 02:15: RIH with 9 5/8" CSG from 276 to 416 m MD. Filled every joint with 1. 40 SG mud using FAC tool.
02:15 - 03:00: Changed proximity switch on PDM.
03:00 - 06:00: RIH with 9 5/8" CSG from 416 to 587 m MD. Filled every joint with 1. 40 SG mud using FAC tool.
06:00 - 00:00: RIH with 9 5/8" CSG from 587 to 1550 m MD. Filled every joint with 1. 40 SG mud using FAC tool. Lo 3 jnts. Running speed 4-7 jnts/hr.

24-hour summary: MU and RIH with 10 3/4" x 9 5/8" CSG from 587 to 1858 m MD.