bengsoon/volve_alpaca huggingface dataset:
Hourly activities:
00:00 - 03:00: Waiting on weather. Meanwhile p/u 8 1/4" drill collars and racked back in set back. Installed last tension cylinder in moon pool.
03:00 - 04:00: Waiting on weather. Meanwhile rearranged collar fingerboard to rack back BHA and lay out 6 1/2" jar.
04:00 - 06:00: Waiting on weather. Meanwhile laid out 6 1/4" jar and 5" HWDP.
06:00 - 08:45: Waited on weather. Issued notice to shut in adjacent wells at 06 45. Meanwhile removed end stops on HTS. Made up aluminium inner string on HTS.
08:45 - 09:15: Removed dog collar and pulled slips. Ran 30" conductor from 45 to 62 m MD.
09:15 - 09:30: Installed c-plate in rotary. Hung off conductor housing in c-plate. Removed cart handling tool. Filled conductor with SW.
09:30 - 10:45: Installed c-plate on top of 30" housing. Picked up and ran 2 ea premade lengths of aluminium stinger to 46 m inside 30" conductor. Made up x-over to pup below cart.
10:45 - 11:15: Lowered cart and made up to 30" coductor housing with 5 counterclockwise turns. Installed inclinometer and valve handle on cart.
11:15 - 11:45: Removed c-plate from RT. Ran conductor housing through RT. Installed master bushing.
11:45 - 13:00: RIH with 30" conductor on 5 1/2" HWDP landing string from 65 m to 196 m MD. Marked pipe at 112,9 m to obtain relative distance top of conductor housing to centralizer deck. Observed with ROV when comming through template.
13:00 - 13:45: Laid out 5 1/2" HWDP single. Made up cementing single with side entry and FOSV. Made up TDS. RIH with 30" conductor to 201,7 m MD and adjusted setting depth according to marking on pipe releative to centralizer deck.
13:45 - 14:45: Performed elevation check releative to f-15 using ROV and digiquartz, 18 mm deviation OK. Recorded x/y inclinometer readings 0,0/0,2.
14:45 - 15:00: Made up cement hose to pump in sub. Flushed lines. Performed line test agianst lo-torque valve to 200 bar 5 min OK.
15:00 - 15:30: Circulated 28 m3 SW at 1500 LPM SPP 0 bar.
15:30 - 16:15: Pumped indicator pill Not able to suck effectively from pit. Changed mudpump, but problems prevailing. Mudpump strainers plugged by LCM. Total LCM pill pumped 3,5 m3. Displaced LCM pill to string by pumping 3,6 m3 seawater.
16:15 - 17:30: Lined up to cement unit. Mixed and pumped 55 m3 1,54 SG xlite cement slurry at 920 LPM cup 21 bar. Observed cement return at seabead with ROV. Block weight declined from 101 MT to 97 MT during cementing.
17:30 - 18:00: Displaced cement with 6,2 m3 SW at 480 LPM FCP 19 bar. Bled off pressure on cement unit no backflow observed.
18:00 - 00:00: Waited on cement to set up. At 22 00, checked inclinometer x/y readings 0,2/0,12. Weight in block 97 MT. Issued notice for shut in of adjacent wells at 23 30.

24-hour summary: Waited on weather to running conductor. Ran 30" conductor and innerstring. Landed conductor at 202 m MD. Cemented conductor. Waited on cement. Released cart and POOH with landing string inner string. Installed CTS on conductor.
Hourly activities:
00:00 - 02:00: Took 2 GMWD surveys at 328 m MD. Drilled 26" hole slided from 328 m to 338 m MD. Drilling parameters flow 3000 LPM SPP 82 bar 83 RPM wob 5-7 MT torque 3 KNM. Perfomed 3 GMWD surveys at 338 m MD. Obtained survey within specification on 3rd attempt.
02:00 - 03:15: Drilled 26" hole slided from 338 m to 354 m MD. Drilling parameters flow 3000 LPM SPP 75 bar 85 RPM wob 5-6 MT torque 3-5 KNM. Secured DP at centralizer deck and took GMWD survey at 354 m MD OK.
03:15 - 06:00: Drilled 26" hole slided from 354 m to 390 m MD. Drilling parameters flow 3000 LPM SPP 50-105 bar 90-180 RPM wob 5-10 MT torque 4-8 KNM. Secured DP at centralizer deck and took GMWD survey as instructed by DD.
06:00 - 10:30: Drilled 26" hole slided from 390 m to 459 m MD. Drilling parameters flow 3500 LPM SPP 50-112 bar 90-180 RPM wob 5-10 MT torque 4-7 KNM ROP 40 m/hr. Pumped 2-3 hivis pills per stand.
10:30 - 10:45: Rigged up WL equipment to run gyro.
10:45 - 12:15: Ran WL gyro. Landed gyro in UBHO at 420 m MD and performed survey. Experienced noise interference downhole. POOH with WL gyro and changed setting from north seeking to line of sight. RIH with gyro and landed in UBHO. Perfomed survey. POOH with WL gyro, performed contiunous survey on way out.
12:15 - 12:30: Rigged down WL equipment.
12:30 - 22:30: Drilled 26" hole slided from 459 m to 620 m MD. Drilling parameters flow 3100-4500 LPM SPP 85-177 bar/ 130-220 RPM wob 4-15 MT torque 5-12 KNM ROP 30-60 m/hr. Performed GMWD/MWD survey on every single. Pumped 2-3 hivis pills per stand.
22:30 - 00:00: Drilled 26" hole slided from 620 m to 660 m MD. Drilling parameters flow 3100-4500 LPM SPP 95-180 bar/ 130-220 RPM wob 4-15 MT torque 5-12 KNM ROP 30-50 m/hr. Performed GMWD/MWD on every connection. Pumped 2-3 hivis pills per stand.

24-hour summary: Drilled 26" hole from 390 m to 459 m MD. Perfomed gyro survey. Drilled 26" hole from 459 m to 798 m MD. Pumped hivis to clean hole. Perfomed GMWD/MWD surveys according to program.
Hourly activities:
00:00 - 03:45: Drilled 26" hole slided from 660 m to 742 m MD. Drilling parameters flow 3100-4500 LPM SPP 90-200 bar/ 130-220 RPM wob 15-20 MT torque 12-15 KNM ROP 20-40 m/hr. Performed GMWD/MWD on every connection. Obtained 3rd consecutive quality survey MWD versus GMWD. Pumped 2-3 hivis pills per stand.
03:45 - 06:00: Drilled 26" hole slided from 742 m to 798 m MD. Drilling parameters flow 3100-4500 LPM SPP 105-200 bar/ 130-220 RPM wob 15-20 MT torque 12-15 KNM ROP 15-25 m/hr. Performed MWD survey on every connection. Pumped 2-3 hivis pills per stand.
06:00 - 09:15: Drilled 26" hole slided from 798 m to 862 m MD. Drilling parameters flow 3100-4500 LPM SPP 105-200 bar/ 130-220 RPM wob 15-20 MT torque 12-15 KNM ROP 15-35 m/hr. Performed MWD survey on every connection. Pumped 2-3 hivis pills per stand.
09:15 - 10:45: Reamed/reciprocated last stand 3 times in order to clean hole before entering utsira. Pumped 15 m3 hivs pill. Parameters flow 4000-4500 LPM SPP 137-174 bar/ 140-170 RPM torque 3-5 KNM.
10:45 - 13:00: Drilled 26" hole slided from 862 m to 893 m MD. Drilling parameters flow 4500 LPM SPP 190 bar/ 130 RPM wob 10-20 MT torque 3-5 KNM ROP 10-20 m/hr. Performed MWD survey on every connection. Pumped 2-3 hivis pills per stand. Encountered top of utsira at 892 m MD observed by drilling break.
13:00 - 18:15: Drilled 26" hole slided from 893 m to 1090 m MD. Drilling parameters flow 3500 LPM SPP 110-130 bar/ 100 RPM wob 5-10 MT torque 0-4 KNM ROP 50-130 m/hr. Performed MWD survey on every connection. Pumped 2-3 hivis pills per stand.
18:15 - 00:00: Drilled 26" hole slided from 1090 to 1148 m MD. Drilling parameters flow 4000-4500 LPM SPP 150-190 bar/ 130-220 RPM wob 10-20 MT torque 0-20 KNM ROP 10-20 m/hr. Performed MWD survey on every connection. Pumped 2-3 hivis pills per stand. Encountered hard stringers at 1116, 1124 and 1134 m MD

24-hour summary: Drilled 26" hole slided from 798 m to 1265 m MD.
Hourly activities:
00:00 - 06:00: Drilled 26" hole slided from 1148 m to 1265 m MD. Drilling parameters flow 3000-4000 LPM SPP 150-180 bar/ 115-200 RPM wob 8-20 MT torque 5-15 KNM ROP 10-20 m/hr. Reamed 2 last stands drilled in order to cater for drilling the skade formation. Pumped 2-3 hivis pills per stand.
06:00 - 12:15: Drilled 26" hole slided from 1265 m to section TD at1400 m MD. Drilling parameters flow 3500-4500 LPM SPP 130-190 bar/ 100-170 RPM wob 5-20 MT torque 5-20 KNM ROP 40-150 m/hr. Pumped 2-3 x 30 m3 hivis pills per stand. Perfomed MWD survey on every connection. Maintained toolface highside when drilling skade sand. Top skade at 1234 m MD and base skade at 1364 m MD.
12:15 - 14:30: Circulated hole clean. Pumped 2 x 30 m3 hivis pills. Reciprocated stand between 1400 m and 1384 m MD. Parameters flow 4500 LPM SPP 180-190 bar 170-220 RPM torque 9-14 k NM.
14:30 - 15:45: Displaced well partly to put 1,40 SG KCL mud to above utsira formation. Pumped a total of 252 m3 KCL mud. Parameters flow 4500 LPM SPP 205-215 bar 170 RPM torque 7-14 KNM.
15:45 - 19:30: POOH with 26" drilling BHA from 1400 m to 1223 m MD. Took 30-50 MT overpull when pulling through skade sand. Worked string with rotation/flow as limited by torque and overpull. Paramaters flow 200-1000 LPM SPP 2-5 bar 20-30 RPM torque 10-35 KNM. String free with normal weight when bit above skade sand.
19:30 - 20:30: POOH with 26" drlling BHA from 1223 to 958 m MD.
20:30 - 00:00: Encounterd thight hole at 958 m MD, took 20-30 MT overpull. Worked string with rotation/flow as limited by torque and overpull. Parameters flow 200-800 LPM SPP 2-5 bar 30 RPM torque 6-28 KNM.

24-hour summary: Drilled 26" hole section from 1265 m to section TD at 1400 m MD. Circulated well clean. Displaced well to 1,40 SG KCL mud to above utsira. POOH with 26" BHA from TD to 540 m MD. Worked tight areas in skade and utsira. Displaced well above utsira to 1,40 SG KCL mud. POOH to 146 m MD.
Hourly activities:
00:00 - 02:00: RIH with 20" 133# n80 tenaris er casing w/centralizers from 78 m to 139 m MD.
02:00 - 02:30: Stabbed 20" casing into conductor. Used ROV push buckle to assist. Issued instruction to start production in adjacent wells at 02 28.
02:30 - 03:45: RIH with 20" 133# n80 tenaris er casing from 150 m to 214 m MD. Filled casing with KCL mud every 5th joint.
03:45 - 04:45: Removed master bushing. Installed PS-30 slips which was challenging due to large od casing through RT.
04:45 - 06:00: RIH with 20" 133# n80 tenaris er casing from 214 m to 292 m MD. Filled casing with KCL mud every 5th joint.
06:00 - 07:00: RIH with 20" 133# n80 tenaris er casing from 292 m to 314 m MD. Filled casing with 1,40 SG KCL mud every 5th joint.
07:00 - 07:15: Held handover meeting.
07:15 - 10:45: RIH with 20" 133# n80 tenaris er casing from 314 m to 448 m MD. Filled casing with 1,40 SG KCL mud every 5th joint.
10:45 - 12:30: Took 20 MT weight at 448 m MD. Attempted to pass restriction 4 times negative. Broke circulation and worked string down to 460 m MD pumping 1,4 SG mud at 660 LPM SPP 17 bar. Circulated bottoms up pumping seawater at 1550 LPM SPP 24 bar. Observed cuttings returns to seabed.
12:30 - 13:30: RIH with 20" 133# n80 tenaris er casing from 460 m to 497 m MD. Observed loose link-tilt clamp on bails.
13:30 - 14:45: Prepared permit for manriding. Isolated drillfloor equipment. Re-tightned link tilt clamp. De-isolated equipment.
14:45 - 00:00: RIH with 20" 133# n80 tenaris er casing from 314 m to 448 m MD. Filled casing with 1,40 SG KCL mud every 5th joint. Tight spot at 640 m to 652 m MD, 15 MT drag but no circulation needed.

24-hour summary: Ran 20" casing from 292 m to 1328 m MD. Removed lafleur, BX-ELEVATOR and drilling bails. Installed drilling bails and DP elevator.
Hourly activities:
00:00 - 02:30: Mixed and pump 113 m3 1,56 SG cement 2) at 1100 LPM cup 21 bar. Mixed and pumped 25 m3 1,92 SG tail slurry at 800 LPM cup 20 bar.
02:30 - 02:45: Displaced cement to drillfloor with 890 liters. Dropped dart. Displaced 3000 liter pumping with cement unit. Observed shear of lower wiper plug with 180 bar.
02:45 - 04:15: Lined up to pump with mud pumps. Stepped up pumps to 3000 LPM. Pressure rose from 4 bar to 89 bar during displacement. Displaced cement with 9661 strokes strokes less than theoretical). Bumped plug with 170 bar, i. E. 80 bar more than FCP at 3000 LPM. No firm confirmation of cement returns to seabed during displacement, but steady fluid return was observed during the operation.
04:15 - 04:45: Lined up to cement unit. Bled back to cement unit, in total 2,3 m3 before backflow stopped. Issued instruction to shut in adjacent wells at 04 40.
04:45 - 06:00: While depressurising wells. Rigged down cement hose and flushed same. Brought 2 x tension cylinders from moonpool to centralizer deck. Brought ROV to surface for collecting WH cap.
06:00 - 06:30: Mounted tension cylinders on centralizer deck. ROV brought WH cap to seabed. Verified adjacent wells shut in at 06 30.
06:30 - 07:00: Released cart with 5 clockwise turns.
07:00 - 07:15: Held toolbox talk for laying out cement head.
07:15 - 07:45: Broke and laid down cement head. Hooked down hydraulics. Laid out cement head on HTS.
07:45 - 08:45: Inserted sponge balls in string. Pumped sponge balls at 500 LPM SPP 1 bar. POOH with cart on 5 1/2" HWDP from 137 m MD to surface. Broke and laid out cart.
08:45 - 09:00: Held toolbox talk for installing tension cylinders.
09:00 - 12:30: Brought 2 x tension cylinders from weatherdeck to centralizer deck. Mounted tension cylinders on centralizer deck. Meanwhile prepared for running HPDR. Notice given to start production at 09 15. Started production in adjacent wells at 13 30.
12:30 - 16:30: Rigged up for running HPDR. Brought riser spider to drillfloor and hooked up same. Brought tensioning equipment to drillfloor. Meanwhile cleaned pits for reception of OBM.
16:30 - 16:45: Held toolbox talk for picking up HPDR.
16:45 - 17:30: Brought TBC double from cantilever to drillfloor by simultaneous lift by deck crane and TDS. Retracted TDS and set down TBC on drillfoor.
17:30 - 21:00: Function tested and performed pre-operational checks on TBC according to vetco procedure. Brought boat collission stool from drillfloor to centralizer deck. Installed RLGF on wellhead using aft crane and ROV. Verified production shut in of adjacent wells at 18 50.
21:00 - 21:30: Ran TBC double through moonpool, weatherdeck and XMT deck and hung off in spider.
21:30 - 22:15: Brought double from cantilever to drillfloor by simultaneous lift by deck crane and TDS. Removed handling flange type c from TBC Landed double onto double
22:15 - 00:00: Made up riser flange using bolt tensioner tool.

24-hour summary: Mounted tension cylinders. Rigged up for running HPDR. Picked up TBC and performed pre-operational checks. Ran HPDR to 82 m MD.
Hourly activities:
00:00 - 01:30: Installed boat collision stool at centralizer deck. Installed and alligned contact ring. Meanwhile released BOP NT-2 connector from stump.
01:30 - 03:00: Hooked up hydraulics to tension cylinders on centralizer deck.
03:00 - 06:00: Installed tensioning assembly half hubs. Oriented half hubs. Made up half hubs to tension ring. Ran tension cylinders and coupled 2 ea to tensioning assembly.
06:00 - 07:00: Coupled 2 ea tension cylinders to tensioning assembly. Transfered tension from block to tensioning cylinders. Applied 90 bar on tension cylinders, i. E. 150 MT tension.
07:00 - 07:15: Held toolbox talk for releasing claxton tool.
07:15 - 08:30: Broke studs on claxton tool using j-gun. Pulled out claxton tool and laid out same.
08:30 - 10:30: Modified scaffolding on weatherdeck for skidding BOP. Meanwhile retrieved RLGF from seabed using port crane assisted by ROV. Retrieved 10mt guidewire/tugger.
10:30 - 14:00: Moved BOP to wellcenter, landed BOP on HPDR and started nipling up NT-2 connector. Made up swadge to TDS and tested upper/lower IBOP and kelly hose OK.
14:00 - 16:00: Installed bell nipple and diverter.
16:00 - 17:00: Got problems with HPU due to overheating of hydraulic oil. Reverted to planned maintenance activity on TDS. Changed springs on centralizer bearing and die carrier. Meanwhile allowed hydraulic oil on HPU to cool.
17:00 - 20:00: Made up pulling tool for nominal seat protector. RIH with NSP pulling tool from surface to 140 m MD. Latched onto NPS and pulled free with 10 MT overpull. Filled BOP with seawater. POOH with NSP from 140 m MD to surface. Set back RT with NSP.
20:00 - 21:45: Picked up and made up 18 3/4" BOP test plug. RIH with test plug and landed same in wellhead at 140 m MD.
21:45 - 22:30: Lined up cement unit and flushed line to trip tank. Lined up to BOP. Closed UPR. Tested BOP connector to 20/345 bar 5/10 min OK. Volume pumped and bled back 450 liters.
22:30 - 23:30: As part of planned maintenance changed 1 die block on TDS to slimmer type.
23:30 - 00:00: Picked up and made up RT/NSP and made up to stand of 5 1/2" DP.

24-hour summary: Coupled tension cylinders and transfered riser tension from block to centralizer deck. Broke and laid out claxton tool. Skidded BOP to wellcenter and made up to riser. Performed maintenance on TDS. Pulled NSP. Ran test plug and tested BOP connector to 345 bar. Ran NSP and set in WH. Picked up and made up 17 1/2" BHA. Broke and laid out 8,25" DC for onshore inspection.
Hourly activities:
00:00 - 01:30: RIH with NSP to 140 m MD and set according to vetco instructions.
01:30 - 02:15: POOH with NSP RT from 140 m MD to surface. Broke and laid down RT.
02:15 - 02:30: Held toolbox talk for making up 17 1/2" drilling BHA.
02:30 - 05:30: Made up 17 1/2" drilling BHA comprising of 17 1/2" bit/pdx5/stab, powerpulse, arc, 17" NM stab and stand of 9 1/2" NMDC. Made up x-over to DC.
05:30 - 06:00: Picked up stand of 8,25" DC. Broke and laid out 8,25" DC singles for onshore inspection.
06:00 - 08:15: Broke and laid out 8,25" DC singles. Ran stand of 8,25" DC, broke and laid out 2 singels.
08:15 - 10:30: Picked up and made up 2 x 8,25" DC and jar. Picked up and made up 2x8,25" DC and intensifier.
10:30 - 10:45: Removed master bushing and installed PS-21 slips.
10:45 - 11:30: Found sheared bolt on actuator for PS-21. Removed PS-21 for repairs. Installed master bushing. Repaired PS-21 slips.
11:30 - 11:45: RIH with 17 1/2" drilling BHA on 5 1/2" DP from 115 m to 194 m MD. Used manual slips. Meanwhile repaired PS-21 slips.
11:45 - 13:00: Isolated TDS for maintenance. Changed out TDS centralizer bushings. Changed die carriers on TDS torque wrench.
13:00 - 13:15: Removed masterbushing and installed PS-21 slips.
13:15 - 15:00: RIH with 17 1/2" drilling BHA on 5 1/2" DP from 194 m to 1000 m MD.
15:00 - 15:45: Filled drillstring with SW. Tested MWD OK.
15:45 - 16:45: RIH with 17 1/2" drilling BHA on 5 1/2" DP from 1000 m to 1323 m MD.
16:45 - 17:30: Performed choke drill.
17:30 - 17:45: Held toolbox talk for drilling ahead and dispalcing to 1,40 SG OBM.
17:45 - 19:00: Washed down from 1323 m and tagged top of cement/plugs at 1359 m MD. Parameters flow 3200 LPM SPP 64 bar 30 RPM torque 10-13 KNM.
19:00 - 19:30: Held toolbox talk handover meeting.
19:30 - 20:00: Lined up for displacement and drained u-tube in surface equipement. Posted personnel.
20:00 - 22:00: While drilling on wiper plugs at 1359 m MD displaced well from SW to 1,40 SG OBM. Displaced mainfold and c/k lines to OBM. Drilling parameters flow 3200 LPM SPP 60 bar increasing to 125 bar 60 RPM torque 12 KNM decreasing to 8 KNM wob 5 MT ECD 1,38.
22:00 - 00:00: Drilled on cement plugs at 1359 m MD. Little or no progress was made. Drilling parameters flow 3200 LPM SPP 123 to 118 bar 40-60 RPM wob 5-10 MT torque 9-12 KNM. When increasing wob to 10 MT observed high stick/slip on MWD.

24-hour summary: Laid out DC and made up BHA. Made repairs on PS-21 slips. Made repairs on TDS. RIH with 17 1/2" BHA from 190 m and tagged cement/plugs at 1359 m MD. Displaced from SW to 1,40 SG OBM. Drilled plugs and shoetrack form 1359 m to 1389,7 m MD. Cleaned out rathole.
Hourly activities:
00:00 - 01:00: POOH with 17 1/2" BHA from 1453 m to 1435 m MD. Observed overpull of 10-15 MT at 1452 m MD. Worked string with 30 RPM as dictated overpull MT) and torque 20 KNM). String free to move down. Normal drag obatained at 1435 m MD.
01:00 - 03:45: POOH with 17 1/2" BHA on 5 1/2" DP from 1435 m to 174 m MD.
03:45 - 04:15: Flowchecked well static. Filled triptanks.
04:15 - 04:45: POOH with 17 1/2" BHA on 5 1/2" DP/HWDP from 174 m to 116 m MD. Removed PS-21 slips. Installed master bushing.
04:45 - 06:00: Pulled and racked back stand of 8,25" DC/INTENSIFIER and stand of 8,25" DC/JAR.
06:00 - 06:45: POOH with 17 1/2" BHA, racked on set back. Inspected bit and damaged power drive.
06:45 - 07:00: Drill crew hand over.
07:00 - 07:15: Toolbox talk prior to handling BHA, rig tongs required.
07:15 - 07:45: Cleared and cleaned rigfloor after POOH.
07:45 - 08:45: Broke off 17 1/2" bit from damaged power drive. Bit to be re-run. L/d power drive on deck.
08:45 - 09:45: P/u new power drive, made up bit.
09:45 - 11:00: RIH from surface to 84m.
11:00 - 11:15: Stopped due to uncertainty of float status. Toolbox talk prior to POOH to check float.
11:15 - 13:00: POOH from 84m to 4m. Broke BHA, inspected float, twisted. Removed twisted float.
13:00 - 15:30: RIH from 4m fo 27m, installed float sub and standard float on top of 17" NM string stabilizer. Rig tongs required.
15:30 - 16:45: RIH with 17 1/2" BHA from 27m to 115m.
16:45 - 17:15: Installed PS-21 slips dressed for 5 1/2" DP.
17:15 - 19:00: RIH from 115m to 559m.
19:00 - 19:15: Tool box talk with on comming shift prior to RIH with 17 1/2" BHA on 5 1/2" DP from 559m.
19:15 - 20:45: RIH from 559m to 1364m, emptying trip tank every 10 stand, filled pipe at 1000m.
20:45 - 21:15: Made up top drive and slided through 20" casing shoe to 1406m. No restrictions observed.
21:15 - 22:15: Took up/down weight, 135/121 ton, free rotation weight, 50 RPM, 127 ton. Started pumps and rotation, 3200 l/min, 137 bar, 50 RPM, 8-10 KNM. Washed from 1406m to tagging depth 1463m.
22:15 - 22:30: Pulled 2m, established drilling parameters, 4300 l/min, 225 bar, 150 RPM, 8-10 KNM. Tagged with 2-4 ton, 4300 l/min, 228 bar, 150 RPM, 10-12 KNM.
22:30 - 00:00: Drilled from 1463m to 1495m, 4490 l/min, 240 bar, 160 RPM, 9-12 KNM, wob 2-5 ton, ROP 18-20 m/hr.

24-hour summary: POOH and racked 17 1/2" BHA. Changed powerdrive. RIH to 1406m, established parameters, 3200 l/min, 134 bar, 50 RPM, 8-10 KNM. Washed to tagging depth at 1463m. Established drilling parameters, 4490 l/min, 240 bar, 160 RPM, 9-12 KNM, wob 2-5 ton, ROP 15-20. Drilled to 1516m. Pulled off bottom and circulated, due to problems with cuttings injection. Continued to drill from 1516m to 1567m. Cuttings in skip, trouble shot injection system, observed rubber in pumps.
Hourly activities:
00:00 - 01:00: Drilled from 1495m to 1515m, 4490 l/min, 240 bar, 160 RPM, 9-12 KNM, wob 2-5 ton, ROP 15-20 m/hr.
01:00 - 01:15: Drilled with reduced ROP, 10 m/hr, due to problems with injection of cuttings.
01:15 - 03:00: Pulled off bottom and circulated, due to problems with cuttings injection. 3500 l/min, 153 bar, 60 RPM, 7-9 KNM. Reciprocated pipe.
03:00 - 06:00: Back on bottom for drilling 17 1/2" hole from 1516m to 1567m. 4490 l/min, 240 bar, 160 RPM, 9-12 KNM, wob 2-3 ton, ROP 19-20 m/hr. Meanwhile delivered cuttings to skip and trouble shot cuttings injecting system. Observed rubber in cutting pumps.
06:00 - 11:45: Drilled 17 1/2" hole from 1567m to 1640m. 4490 l/min, 240 bar, 160 RPM, 11-13 KNM. Wob 1-4 ton, ROP 10-17 m/hr. Simultaneously p/u and build 2 stands of 13 3/8" casing set back. Malfunction occurred on alignment in FWD PRS. Emergency switch accidently activated during trouble shooting alignment problems on FWD PRS. Stop in operation while re-set min).
11:45 - 19:00: Drilled and steared 17 1/2" hole from 1640m to 1734m. 4490 l/min, 240 bar, 160 RPM, 11-13 KNM. Wob 1-4 ton, ROP 15-17 m/hr.
19:00 - 00:00: Drilled 17 1/2" hole from 1734m to 1809m. 4490 l/min, 245 bar, 160 RPM, 12-15 KNM, wob 3-5 ton, ROP 15-17 m/hr.

24-hour summary: Drilled and steared 17 1/2" hole from 1567m to 1889m. 4490 l/min, 245 bar, 160 RPM, 12-15 KNM, wob 3-5 ton, ROP 15-17 m/hr. Simultaneously p/u and build 7 stands of 13 3/8" casing and racked on set back. Malfunction occurred on alignment in FWD PRS. Emergency switch accidently activated during trouble shooting alignment problems on pipe handler. Stop in operation while re-set emergency switch.