bengsoon/volve_alpaca huggingface dataset:
Hourly activities:
00:00 - 06:00: Drilled 17 1/2" section from 878 m to 1101 m MD. Base utsira 1064,5 mmd. Drilling parameters flow 3450-4000 LPM SPP 115-132 bar wob 0-12 MT torque 4-10 KNM string RPM 40 bit RPM 104-160. ROP 25-100 m/hr, average ROP 37. 2 m/ hrs. Pumped 10 m3 hi-vis sweep for every single drilled. Performed GMWD survey on connections. Up weight 138 MT down weight 118 MT. Sliding intervals 878 888 m 918 928 m 958 973 m 999 1019 m 1039 1065 m 1079 1101 m
06:00 - 18:00: Drilled 17 1/2" section from 1101 m to 1415 m MD. Top skade 1225 mmd. Base skade 1316 mmd. Drilling parameters flow 3500-4130 LPM SPP 106-148 bar wob 1-10 MT torque 6-13 KNM ECD 1. 01 1. 09 SG/ string RPM 40/bit RPM 136-160. ROP 1-100 m/hr, average ROP 26. 2 m/ hrs. Pumped 10 m3 hi-vis sweep for every single drilled. Performed GMWD survey on connections. Up weight 149 MT down weight 123 MT. MAX ECD in skade 1. 09 SG survey. Inc. Azi. 1131. 84 18. 41 118. 87 1164. 55 21. 19 116. 01 1171. 98 22. 67 114. 88 1212. 44 26. 61 110. 18 1252. 67 30. 29 110. 42 1293. 19 29. 76 111. 71 1333. 68 28. 07 113. 27
18:00 - 18:30: At TD. Pumped 30 m hi-vis followed by 30 m sea water, followed by another 30 m of hi-vis, at 3500 LPM while reciprocating drill string.
18:30 - 19:30: Displaced out pill with sea water 1 x bu, 3500 LPM 110 bars. Reciprocating the string.
19:30 - 20:45: Displaced hole to 1. 40 SG at 3500-4500 LPM, SPP 170-230 bars.
20:45 - 22:15: POOH with 17½" BHA from 1415 m to 1123 m. Took weight of 20 MT overpull. RIH with two jnts. POOH with rotation on the string, passed obstruction with 5 MT overpull.
22:15 - 00:00: Continued POOH with 17½" BHA from 1123 m to 720 m. Tight spots at 796 m and 775 m, pulled through with 10 MT overpull.

24-hour summary: Drilled 17 1/2" section from 1101 m to 1415 m MD. Circulated well clean. Displaced well to 1. 40 SG mud. POOH with 17½" BHA. Had tight spot at 1123 m, rotated through. Tight spots at 796, 775, 519 and 481m, pulled through with 10-15 MT overpull. Rack back BHA.
Hourly activities:
00:00 - 02:30: Continued POOH with 17½" BHA from 720 m to 122 m. Tight spots at 519 m and 481 m, pulled through with 10 MT overpull.
02:30 - 03:15: Removed PS-21 slip and installed master bushing. Held tool box take prior to handling the 17½" BHA.
03:15 - 03:45: Made up to TDS and displaced string to sea water.
03:45 - 05:00: Continued POOH BHA from 122 m to 35 m.
05:00 - 06:00: Prepared for racking back the UBHO.
06:00 - 07:00: Racked back the 17½" BHA.
07:00 - 07:15: Cleaned and cleared the rig floor.
07:15 - 07:30: Held tool box talk prior to rig up 13 3/8" casing handling equipment.
07:30 - 11:15: Rigged down the 5½" handling equipment. Rigged up the 13 3/8" casing handling equipment and FAC tool and function tested same. Meanwhile moved the CTS funnel from f-5 to f-15.
11:15 - 11:45: Held tool box talk prior to run in hole with 13 3/8" casing.
11:45 - 13:15: Picked up shoe, intermediate and float collar and baker locked same. Confirmed float OK.
13:15 - 00:00: RIH with 13 3/8" casing from 27 m to 819 m, filling every casing joint.

24-hour summary: Racked back the 17½" BHA. Rigged up the 13 3/8" casing handling equipment and FAC tool. RIH with 13 3/8" casing from to 1250 m, filling every casing joint. Started changing to 5½" handling equipment.
Hourly activities:
00:00 - 04:45: Continued RIH with 13 3/8" casing from 819 m to 1250 m, filling every casing joint.
04:45 - 05:00: Held tool box talk prior to change surface handling equipment and picking up the 18 3/4" well head.
05:00 - 06:00: Changing to 5½" handling equipment.
06:00 - 07:00: Rigged up 5½" handling equipment.
07:00 - 07:15: Held tool box talk prior to pick up cart.
07:15 - 07:45: Picked up 18 3/4" WH housing/cart assembly. Made up to 13 3/8" casing.
07:45 - 08:45: Rigged down casing tong and PS-30 13 3/8" slips. Cleared rig floor.
08:45 - 09:15: Lowered cart below rotary, removed cap and filled up cart with sea water.
09:15 - 10:00: Held tool box talk prior to install the master bushing, and installed same.
10:00 - 12:00: RIH with 5½" HWDP landing string as per tally, picked up 2 x HWDP and cement head and made up same. Installed lo-torque valve and cement hose. Up/down weight 180/125 MT. Landed 18 3/4" WH into 30" conductor by setting down casing string weight, plus 5 MT of landed string weight and engaged the lock ring. Performed over pull test to 25 MT.
12:00 - 13:15: Established circulation in steps with SW through top drive to 2300 LPM 21 bars.
13:15 - 13:30: Confirmed line up and leak tested line up to 200 bars 5 min.
13:30 - 17:45: Mixed and pumped 161 m 1. 52 SG lead at 1300 LPM 24 bar followed by 20 m 1. 92 SG tail slurry at 900 LPM 34 bar. ROV observed returns only came up f-5. Displaced and sheared wiper plug by pumping 3000 litres SW, plug sheared at pressure/volume 132 bar/ 1200 ltr. Continued to displace cement with seawater at 3000 l/min using mud pumps. FCP 90 bars, bumped plug and applied 160 bars to plug. Pump efficiency 95. 4 Bled off pressure, 1500 litres bled back to the cement unit. Disconnected cement hose after pressure had been bled off.
17:45 - 18:00: Reduced overpull on landing string to neutral. ROV observed cart. Released cart according to vetco, 5 turns right hand.
18:00 - 19:30: Held tool box talk prior to lay out cement head. Removed cement hose and lo-torque valve, broke out cement head. Dropped 2 sponge balls and flushed landing string.
19:30 - 20:00: POOH with landing string and racked back same. Laid out cart.
20:00 - 21:45: Installed hatch covers on wellhead and moon pool. Continued operations on well f-15 y1

24-hour summary: RIH with 13 3/8" casing to 1404,7 m. Installed 18 3/8" WH. Cemented casing. Laid out landing string.
Hourly activities:
18:00 - 19:45: Cleaned and cleared rig floor of WL equipment. Held tool box meeting prior to skidding the cantiliver from f-14 to f-5. Prepared to skid rig. Started to skid rig to f-5. Meanwhile RU to pump through KWV on f-14.
19:45 - 21:15: Continued skidding cantiliver from f-14 to f-5. Meanwhile performed line test against KWV on f-14 30/345 bar 5/10 min. Equalized and opened HMV and DHSV by pressuring up to 67 bar using baseoil and CMT unit according to f-14 initial start up procedure.
21:15 - 21:45: Continued skidding cantiliver from f-14 to f-5. Had rig shut-down.
21:45 - 23:30: Changed burst disk in turbine cooling system and rectified problem. Re-sat all rig systems.
23:30 - 00:00: Continued skidding cantiliver from f-14 to f-5.

24-hour summary: Skidded rig from f-14 to f-5. RU to run HPDR. PU TBC and stress joint.
Hourly activities:
00:00 - 00:15: Continued skidding cantiliver from f-14 to f-5. Skidded 3 m port and 2. 25 m aft.
00:15 - 01:30: Removed master bushings and installed safety guard. RU to install riser spider.
01:30 - 02:15: Equalized and opened HMV and DHSV by pressuring up to 63 bar using baseoil and CMT unit to start up on f-14 after shut-down.
02:15 - 03:00: Continued to install riser spider. Function tested riser spider and installed hole cover. Installed and function tested BX-ELEVATOR.
03:00 - 05:30: Held tool box meeting prior to lifting TBC riser joint to drill floor. Installed vetco equipment on rig floor. Lifted riser simultaniously with crane and TDS until it was vertical. Removed slings.
05:30 - 06:00: Removed protection from connector. Prepared to bring vetco hot stabs from moonpool to rig floor to be able to function test TBC.
06:00 - 10:00: Flushed and function tested TBC. Meanwhile removed cradle and trolly from HTS. Removed special tool and dressed fox hole for MU 12 1/4" BHA.
10:00 - 13:00: Waited on production to bean up f-14. Meanwhile lifted tension cylinders for f-9 to rig floor and placed them next to riser spider for easy acess when lifting them down to WH. pressure tested standpipe manifolds PU and MU drill collars from deck.
13:00 - 14:45: Waited on production to stop production on f-14 and f-12 for heavy lift. Meanwhile continued PU and MU drill collars from deck and pressure testing standpipe manifolds.
14:45 - 16:30: Removed hatches on f-5 and f-10. Lowered tension cylinders for f-9 through rotary down to WH and retrieved actuator for f-14.
16:30 - 19:00: Removed tension deck hatches from f-5 and f-10. RU guide line tuggers in moonpool. Meanwhile re-instated cradle and trolly to HTS for riser handling.
19:00 - 00:00: Held tool box talk with night crew. PU and ran HPDR doubles from surface to 50 m. Removed lifting sub on HPDR in riser spider and MU flange connection. Installed protection caps on flange nuts using bandak tool. Tested flanges to 3000 psi/5 min. Installed fairings around flanges. Verified that tension ring was in place on top of the centralizer deck opening. Meanwhile installed guide wires at template using ROV.

24-hour summary: Flushed and function tested TBC on rig floor. Waited for production to bean up f-14. Stop production on f-14 and f-12 for heavy lift. Ran HPDR until tensioner joint.
Hourly activities:
00:00 - 06:00: Continued to PU and run HPDR doubles from 50 to 103 m. Removed lifting sub on HPDR in riser spider and MU flange connection. Installed protection caps on flange nuts using bandak tool. Tested flanges to 3000 psi/5 min. Installed fairings around flanges. Meanwhile leak tested kill manifold 30/345 bar for 5/10 min and choke/kill manifold 30/345 bar for 5/10 min.
06:00 - 09:00: Continued to MU flange connection. Installed protection caps on flange nuts using bandak tool. Tested flanges to 3000 psi/5 min. Installed fairings around flanges. PU riser string using TDS and RD riser spider. Lowered HPDR so that claxton tool was below rotary and installed outer ring and master bushings. PU and MU one STD of 5 1/2" DP.
09:00 - 11:45: RIH with HPDR from 127 m to just over connector at 138 m. Entered guide funnel. Removed guide funnel from well head. Turned riser clockwise until hot stab was oriented in the right direction. Landed TBC on WH with 15 MT. Launched hot stab and locked connector onto WH. Applied 10 MT overpull on riser to confirm h4-musl connector.
11:45 - 14:00: Installed centralisers, tension ring and boat collison stool. Meanwhile performed line test on kill line to f-12 to 30/200 bar for 5/10 min. Equalized and opened f-12 DHSV.
14:00 - 15:30: Retrieved hot stab on TBC and replaced with dummy. Retrieved guide wires from template.
15:30 - 16:30: Re-installed hatch on f-10.
16:30 - 19:00: Attempted to install half-moon hatches on f-5 around BOP joint. Removed master bushings and retracted blocks to line up hatches without sucess.
19:00 - 19:15: Rig shut down due to production. Meanwhile held tool box talk prior to pressuring up tension cylinders.
19:15 - 20:00: Waited for production operator to transfer weight from HPDR to tension cylinders. Meanwhile carried out housekeeping on centralizer deck.
20:00 - 20:15: Released tension on TDS and adjusted pressure on tension cylinders to 37 bar.
20:15 - 22:30: Installed half-moon hatch cover on f-5. Erected 3 m scaffolding tower around claxton tool in moonpool to be able to insert veco 1502 male cap. Meanwhile pressured up to 90 bars on all 4 tension cylinders to obtain riser tension of 150 MT. Held tool box talk prior to equalizing DHSV on f-14.
22:30 - 23:45: Continued to erect scaffolding tower around claxton tool in moonpool to be able to insert veco 1502 male cap. Meanwhile equalized and opened DHSV by pressuring up to 88 bar using baseoil and CMT unit to start up production on f-14.
23:45 - 00:00: Continued to erect scaffolding tower around claxton tool in moonpool to be able to insert veco 1502 male cap.

24-hour summary: PU landing string, landed TBC, locked and confirmed with overpull. Started production on f-12. Installed centralizers, tensioner ring and boat collision stool. Transfered tension from TDS to tension cylinders. Installed half-moon hatch on f-5. Erected scaffolding tower around claxton tool. Integrity tested HPDR 20/195 bar for 5/10 min. OK. Disconnected and LD claxton tool and landing string. Started to nu BOP/DIVERTER.
Hourly activities:
00:00 - 00:15: Continued to erect scaffolding tower around claxton tool in moonpool to be able to insert veco 1502 male cap.
00:15 - 01:00: Filled riser with 8. 7 m3 SW and installed veco 1502 male cap.
01:00 - 02:15: RU and performed integrity test of riser system through TDS and claxton tool using CMT unit. Leak tested HPDR/WELL to 20/195 bar for 5/10 min. OK. Pumped 1275 ltrs at 700 LPM and bled back 1200 ltrs.
02:15 - 03:00: Disconnected claxton tool. Could not RB STD of 5 1/2" DP due to PRS not working. Meanwhile carried out maintenance on FWD iron-roughneck and prepared 12 1/4" BHA.
03:00 - 03:30: Re-sat aft PRS after shut-down.
03:30 - 04:00: RB STD of 5 1/2" DP and removed claxton tool from rig floor. Re-installed master bushings.
04:00 - 06:00: Held tool box talk prior to nipple up BOP/DIVERTER. Moved BOP to top of HPDR and started to nipple up BOP. Meanwhile pressure tested 5 1/2" TIW and grey valve to 30/345 bar for 5/10 min.
06:00 - 11:45: Held tool box talk prior to nipple up BOP and focused on tools aloft. Moved BOP to top of HPDR and started to nipple up BOP onto nt2 connector. Installed slick joint.
11:45 - 15:30: Installed overshot and diverter. POOH and lo diverter RT. Removed diverter inserts and installed outer ring and master bushings. Cleared rig floor of excess equipment. Meanwhile flogged bolts on slick joint.
15:30 - 16:00: Filled riser with SW using CMT unit and held tool box talk prior to MU test plug assembly. Had problem with BX-ELEVATORS.
16:00 - 17:00: BX-ELEVATOR would not close. Changed out rental elevators for rig elevators.
17:00 - 19:30: Checked dies on PRS prior to PU 5 1/2" DP. PU and MU BOP test plug assembly. RIH with BOP test plug on 5 1/2" DP from surface to 139. 4 m.
19:30 - 00:00: Lined up and pressure tested nt2 connector riser to 30/345 bar for 5/10 min. OK. Lined up and pressure tested lower IBOP, upper IBOP and kelly hose to 30/345 bar for 5/10 min. OK. Performed accumulator test. Meanwhile serviced both FWD and aft PRS. Serviced and inspected TDS.

24-hour summary: Nu BOP/DIVERTER and pressure tested BOP/DIVERTER/CONNECTOR to 345 bar/10 min. OK. Serviced and tested TDS. MU and RIH with 12 1/4" BHA from surface to 92 m. Rig shut down at 5 45 hrs.
Hourly activities:
00:00 - 02:15: RD and lo BOP test plug assembly. Function tested shear rams and recorded parameters. Meanwhile cleaned and cleared drill floor.
02:15 - 05:45: Held tool box talk with focus on manual handling of BHA. PU and MU 12 1/4" BHA from surface to 92 m.
05:45 - 06:00: Rig shut down. Waiting on production to free electrican to re-set drill floor equipment.
06:00 - 07:00: Waiting on production to free electrican to re-set drill floor equipment.
07:00 - 07:45: Held tool box talk with focus on manual handling of BHA. PU and MU 12 1/4" BHA from 92 m to 140 m.
07:45 - 08:00: Held tool box meeting prior to equalizing and opening HMV on f-14.
08:00 - 10:45: RIH with 12 1/4" BHA on 5 1/2" DP from 140 m to 180 m. Broke off liner XO on BTM of 5 1/2" DP STD. Removed master bushings and installed ps21 slips. Continued to RIH with 12 1/4" BHA on 5 1/2" DP from 180 m to 987 m filling every 10 stds. Meanwhile equalized and opened HMV on f-14.
10:45 - 11:45: MU TDS and tested MWD tools at 2400 LPM 48 bar. Removed ps21 slips and installed master bushings. Installed TIW.
11:45 - 14:45: Performed slip and cut.
14:45 - 15:15: Continued to perform slip and cut.
15:15 - 16:45: Removed TIW and master bushings. Installed ps21 slips. RIH with 12 1/4" BHA on 5 1/2" DP from 987 m to 1307 m.
16:45 - 17:30: MU TDS and performed choke drill. Operation transfered to f-99.
23:30 - 00:00: Perform choke drill.

24-hour summary: Continued MU and RIH with 12 1/4" BHA from 92 m to 140 m. RIH with 12 1/4" BHA on 5 1/2" DP from 140 m to 1307 m MDRT. Performed cut slip. Opened ASV and checked status on burst disk on f-14. Washed down and tagged cement at 1376. 5 m MD. Drilled on cement plug/float and displaced to 1. 35 SG OBM.
Hourly activities:
00:00 - 01:30: Continued to RIH with 12 1/4" BHA on 5 1/2" DP from 1307 m to 1351 m. Down weight 108 MT. Held tool box talk prior to displacing well to 1. 35 SG OBM. Made up TDS and broke circulation. Washed down from 1351 m at 2300 LPM SPP 43 bar and tagged cement plug at 1376,5 m MD.
01:30 - 02:45: Drilled on cement plug/float at 1376,5 m MD and displaced to 1. 35 SG OBM. Drilling parameters flow 2800 LPM SPP 114 bar string RPM 20-30 wob 4-5 MT torque 8-10 KNM ECD 1. 36. Picked off bottom every 10-15 min to clean bit. Meanwhile MU and RB 10 3/4" CSG. Stds.
02:45 - 06:00: Drilled on cement plug/float at 1376,5 m MD. Drilling parameters flow 2800 LPM SPP 114 bar string RPM 20-30 wob 5-10 MT torque 8-12 KNM ECD 1. 36. Picked off bottom every 10-15 min to clean bit. Meanwhile MU and RB 10 3/4" CSG. Stds. A total of 3 stds 10 3/4" CSG RB in derrick.
06:00 - 11:00: Drilled on cement plug/float at 1376,5 m MD. Drilling parameters flow 2800 LPM SPP 111 bar string RPM 40-70 wob 1-11 MT torque 2-20 KNM ECD 1. 36 SG EMW. Picked off bottom every 10-15 min to clean bit. Meanwhile MU and RB 10 3/4" CSG. Stds.
11:00 - 15:00: Drilled out shoe track from 1376. 5 m to 1415 m MD. Drilling parameters flow 2800 LPM SPP 112 bar string RPM 70 wob 2-6 MT torque 9-20 KNM ECD 1. 36 SG EMW. Reamed through shoe every 2 m drilled. Meanwhile MU and RB 10 3/4" CSG. Stds.
15:00 - 15:30: Drilled 3 m new formation in 12 1/4" hole section from 1415 m to 1418 m MD. Drilling parameters flow 2800 LPM SPP 112 bar string RPM 70 wob 2 MT torque 9-10 KNM ECD 1. 36 SG EMW. Meanwhile MU and RB 10 3/4" CSG. Stds.
15:30 - 16:15: Spotted 5 m3 LCM pill in open hole/td flow 2800 LPM SPP 112 bar string RPM 10 torque 9 KNM. Reduced flow to 1600 LPM going through MWD tools. Circulated and POOH until bit just below 13 3/8" CSG shoe flow 2800 LPM SPP 112 bar string RPM 10 torque 9 KNM. Meanwhile held toolbox prior to performing fit and MU and RB 10 3/4" CSG. Stds.
16:15 - 17:45: Closed BOP and lined up to perform fit. Performed line test to 100 bar 5 min against IBOP and kill HCR. Performed fit and pressured up at 50 LPM to 33 bar bar on CMT unit) using 298 ltrs SW. Bled back 230 ltrs. Meanwhile MU and RB 10 3/4" CSG. Stds.
17:45 - 18:30: Filled trip tanks with 1. 35 SG OBM and displaced choke and kill manifolds to mud. Meanwhile MU and RB 10 3/4" CSG. Stds. A total of 12 stds 10 3/4" CSG RB in derrick.
18:30 - 00:00: Established parameteres and started drilling 12 1/4" hole section from 1418 m to 1522 m MD. Drilling parameters flow 3250-3300 LPM SPP 153-159 bar string RPM 120 wob 2-4 MT torque 11-15 KNM ECD 1. 37 SG EMW ROP 30-50 m/hr. Meanwhile MU and RB 9 5/8" CSG. Stds.

24-hour summary: Continued drilling shoe track/float in 12 1/4" section. Drilled 3 m new formation and took fit. Drilled 12 1/4" hole section from 1415 m to 1653 m MD.
Hourly activities:
00:00 - 06:00: Drilled 12 1/4" hole section from 1522 m to 1653 m MD. Drilling parameters flow 3300-3500 LPM SPP 159-179 bar string RPM 120 wob 2-4 MT torque 13-17 KNM ECD 1. 37-1. 38 SG EMW drilled with limited ROP 20-40 m/hr due to problems transfering slurry from milling tank through active tank to holding tank. Meanwhile MU and RB 9 5/8" CSG. Stds. A total of 14 stds 9 5/8" CSG RB in derrick.
06:00 - 06:45: Drilled 12 1/4" hole section from 1653 m to 1672 m MD. Drilling parameters flow 3500 LPM SPP 179 bar string RPM 120 wob 2-4 MT torque 13-17 KNM ECD 1. 38 SG EMW drilled with limited ROP 20-40 m/hr due to problems transfering slurry from milling tank through active tank to holding tank. Stopped drilling to investigate TDS. Meanwhile MU and RB 9 5/8" CSG. Stds.
06:45 - 07:15: Investigated leak in TDS. Found small leak on lower side of washpipe. Decided to continue operation and keep observing TDS. Meanwhile MU and RB 9 5/8" CSG. Stds.
07:15 - 12:00: Drilled 12 1/4" hole section from 1672 m to 1793 m MD. Drilling parameters flow 3500 LPM SPP 172-174 bar string RPM 120-150 wob 3-4 MT torque 12-19 KNM ECD 1. 37-1. 38 SG EMW. Unable to drill on because holding tank was full to inject slurry because it did not meet viscosity requirement) and cuttings screw going to skip clogged up. Meanwhile MU and RB 9 5/8" CSG. Stds.
12:00 - 15:30: Circulated while reciprocating drill string circulation parameters flow 2800 LPM SPP 117 bar string RPM 50 torque 8-12 KNM ECD 1. 36 SG EMW due to problems with mill pump and slurry system. Meanwhile MU and RB 9 5/8" CSG. Stds.
15:30 - 18:00: Drilled 12 1/4" hole section from 1793 m to 1862 m MD. Drilling parameters flow 3500 LPM SPP 176 bar string RPM 150 wob 3-6 MT torque 12-20 KNM ECD 1. 38 SG EMW. Unable to drill on due to line from shaker to mill tank, line from mill tank to active tank and cuttings screw going to skip clogged up. Meanwhile MU and RB 9 5/8" CSG. Stds.
18:00 - 22:30: Circulated while reciprocating drill string circulation parameters flow 1000-2000 LPM SPP 22-30 bar string RPM 50 torque 5-9 KNM ECD 1. 37 SG EMW due to problems with mill pump and slurry system. Meanwhile MU and RB 9 5/8" CSG. Stds.
22:30 - 00:00: Drilled 12 1/4" hole section from 1862 m to 1886 m MD. Drilling parameters flow 3500 LPM SPP 184 bar string RPM 150 wob 1-3 MT torque 9-17 KNM ECD 1. 38 SG EMW. Drilled with limited ROP 20 m/hr to observe proper operation of mill pump and slurry system. Meanwhile MU and RB 9 5/8" CSG. Stds.

24-hour summary: Drilled 12 1/4" hole section from 1653 m to 1895 m MD and sorted out problems with mill pump and slurry system. Recorded on f-99 circulated hole clean, flow checked and POOH with 12 1/4" BHA from 1884 m to inside 13 3/8" CSG shoe at 1381 m due to exhaust fumes on drill floor. Circulated inside 13 3/8" CSG shoe to keep MWD batteries alive.
Hourly activities:
00:00 - 00:15: Drilled 12 1/4" hole section from 1886 m to 1895 m MD. Drilling parameters flow 3500 LPM SPP 184 bar string RPM 150 wob 2-3 MT torque 14-20 KNM ECD 1. 37 SG EMW. Drilled with limited ROP 20 m/hr to observe proper operation of mill pump and slurry system. Stopped drilling due to exhaust fumes on drillfloor. RU cascade system on drill floor. Meanwhile shut down CSG. Equipment. A total of 29 stds 9 5/8" CSG RB in derrick.
14:15 - 14:45: Held tool box talk regarding, CRI slurry system, servicing the TDS and start to RIH with drilling BHA and continue drilling 12¼" hole.
14:45 - 15:15: Serviced the TDS.
15:15 - 15:45: Checked surface equipment prior to RIH with drilling BHA.
15:45 - 18:00: RIH from 1383m to 1551m. Performed kick drill 29 sec. Continued RIH from 1551m to 1876m.
18:00 - 19:00: Made up to TDS and filled the pipe. Performed survey at 1876m. Washed down and tagged bottom at 1895m.
19:00 - 22:15: Drilled 12¼" hole section from 1895 m to 1955 m MD. Drilling parameters flow 3500 LPM SPP 180 bar string RPM 150 wob 2-5 MT torque 9-21 KNM ECD 1. 37-1. 38 SG EMW ROP 25-40 m/hour problems pumping slurry from active tank to slurry holding tank due to high viscosity. Simultaneously MU and RB 9 5/8" CSG. Stds.
22:15 - 22:45: Racked back one stand and circulated at reduced rate 30 RPM, 50 RPM, 1100 LPM. Due to cuttings ditch to holding tank blocked.
22:45 - 00:00: Contined drilling 12¼" hole section from 1955 m to 1979 m MD. Drilling parameters flow 3500 LPM SPP 180 bar string RPM 150 wob 4-7 MT torque 8-22 KNM ECD 1. 37-1. 38 SG EMW ROP 25-35 m/hour simultaneously MU and RB 9 5/8" CSG. Stds.

24-hour summary: Unable to work at drill floor due to exhaust fumes on f-99). Continued drilling 12¼" hole section from 1895 m to 2145 m.