bengsoon/volve_alpaca huggingface dataset:
Hourly activities:
00:00 - 01:45: Continued staging up pumps 1300 1700 LPM and RPM 30-120, for drilling parameters. Observed loss rate. LCM pill still coming over shakers. MAX ECD 1. 40 SG EMW. Time actual loss m loss m 00,00-00,15 0,16 0,64 00,15-00,30 0,15 0,6 00,30-00,45 1,04 4,16 00,45-01,00 0,68 2,52 01,00-01,15 0,2 0,8 01,15-01,30 0,15 0,6 01,30-01,45 0,74 2,96
01:45 - 02:00: Took survey and connection, 6,8 m flow back observed over connection.
02:00 - 03:00: Logged as RIH, 1485 l/m, 20 ROP, 60rpm from 3662m to 3670m. ECD 1. 39 SG EMW.
03:00 - 06:00: Started drilling and brake in new bit. Drilled 8 1/2" hole from 3670 m to 3682. 5m. Flow 1700 LPM SPP 145-150 bars string RPM 80-160 TQ 12-20 KNM wob 4-11 MT ECD 1. 38-1. 42 EMW ROP 3-10 m/hr. Mud weight 1. 32 SG. Averaged losses 2,6 m
06:00 - 11:15: Continued drilling 8½" hole from 3682. 5 m to 3734 m. Flow 1700 LPM SPP 150 bars string RPM 160 TQ 16-22 KNM wob 5-9 MT ECD 1. 42-1. 43 EMW ROP 10-20 m/hr. Mud weight 1. 32 SG. Losses 2-3 m
11:15 - 12:15: Pulled off bottom and circulated to clean hole, due to increasing trend in losses, loss rate increased to approx. 6 m ECD 1. 43 SG EMW. Meanwhile discussed further plan with onshore organisation.
12:15 - 19:00: Continued drilling 8½" hole from 3734 m to 3785 m. Flow 1700 LPM SPP 155 bars string RPM 180 TQ 16-22 KNM wob 5-9 MT ECD 1. 42 EMW. Mud weight 1. 32 SG. Controlled ROP at 10 m/hr. Connection at 13 30, 3743 m, 9. 3 m returns over connection period. 1,14 m Connection at 18 00, 3785 m, 7,9 m returns over connection period. 1,69 m Average losses 1,4 m
19:00 - 00:00: Continued drilling 8½" hole from 3734 m to 3834 m. Flow 1700 LPM SPP 155 bars string RPM 180 TQ 16-19 KNM wob 1-4 MT ECD 1. 42 EMW. Mud weight 1. 32 SG. Controlled ROP at 10 m/hr. Up weight 171 MT down weight 121 MT free rotational weight 137 MT. Connection at 22 15, 3823 m, 13,5 m returns over connection period. 1,32 m Average losses 1,4 m

24-hour summary: Drilled 8½" hole from 3682. 5 m to 3889m.
Hourly activities:
00:00 - 06:00: Continued drilling 8½" hole from 3834 m to 3889 m. Flow 1700 LPM SPP 155 bars string RPM 180 TQ 14-16 KNM wob 1-2 MT ECD 1. 42 EMW. Mud weight 1. 32 SG. Controlled ROP at 10 m/hr. Up weight 173 MT down weight 125 MT free rotational weight 144 MT. Connection at 03 15, 3864 m,10. 7m returns over connection period. 1,29 m3/min. Losses per hour from 00 00 hrs to 01 45 average 1,4 m Losses per hour from 01 45 hrs to 05 00 average 1,2 m
13:15 - 19:00: Continued drilling 8½" hole from 3955 m to 4008 m. Flow 1700 LPM SPP 155 bars string RPM 180 TQ 14-16 KNM wob 4-6 MT ECD 1. 42 EMW. Mud weight 1. 32 SG. Controlled ROP at 10 m/hr. Up weight 173 MT down weight 128 MT free rotational weight 148 MT. Connection at 3986m, 9. 0m gains, 1. 6 MAX connection gas observed. 2,25m
19:00 - 00:00: Continued drilling 8½" hole from 4008 m to 4050 m. Flow 1700 LPM SPP 158 bars string RPM 180 TQ 16-18 KNM wob 1-2 MT ECD 1. 42-1. 43 EMW. Mud weight 1. 32 SG. Controlled ROP at 10 m/hr. Up weight 173 MT down weight 128 MT free rotational weight 148 MT. Average losses 1. 5 m Connection at 4026m, 11. 8m gains, 1. 9 MAX connection gas observed. 1. 18m

24-hour summary: Drilled 8½" hole from 3889m to 4090m Started to circulate hole clean.
Hourly activities:
00:00 - 00:15: Perform gyro rotation shots at 2251m.
00:15 - 01:00: Continued POOH from 2251m to 1885m. Due to gyro, pipe to be stationary in slips for 2 min. Before continue POOH. Tripping speed 488 m/hr.
01:00 - 01:30: Changed out handling equipment from 5½" to 5".
01:30 - 02:00: Continued POOH with 5" pipe from 1885-1724m. Due to gyro, pipe to be stationary in slips for 2 min. Before continue POOH. Tripping speed 322 m/hr.
02:00 - 02:30: Perform gyro rotation shots at 1724m.
02:30 - 03:45: Continued POOH with 5" pipe from 1724m to 1194m. Due to gyro, pipe to be stationary in slips for 2 min. Before continue POOH. Tripping speed 424 m/hr.
03:45 - 04:15: Perform gyro rotation shots at 1194m.
04:15 - 05:15: Continued POOH with 5" pipe from 1194m to 706m. Due to gyro, pipe to be stationary in slips for 2 min. Before continue POOH. Tripping speed 488 m/hr.
05:15 - 05:45: Perform gyro rotation shots at 706m. Problems with PS-21 slip.
05:45 - 06:00: PS-21 slips unable to hold DP. Investigated problem.
06:00 - 06:15: Repaired PS-21 slips.
06:15 - 07:30: Continued POOH with 5" pipe from 706m to 217m. Due to gyro, pipe to be stationary in slips for 2 min. Before continue POOH.
07:30 - 08:30: Flow checked well static. Meanwhile reset diagnostic work station, serviced and maintenance on aft PRS.
08:30 - 11:45: Continued POOH with 5'' HWDP and 8½" BHA. Laid out BHA.
11:45 - 12:30: Pulled radioactive source to rig floor and removed from BHA into safe container.
12:30 - 13:30: Continued laying down 8½" BHA.
13:30 - 13:45: Cleared rig floor.
13:45 - 14:45: Rigged up to RIH with 3½'' drill pipe.
14:45 - 16:30: Held tool box talk and RIH with 3½'' drill pipe from surface to 250m, in singles picked up from cantilever. Tripping speed 143m/hr
16:30 - 17:00: Changed to 5'' handling equipment.
17:00 - 19:00: RIH with 5'' drill pipe from 250m to 1676m. Tripping speed 713m/hr
19:00 - 19:15: Held tool box talk, performed checks and emptied trip tank.
19:15 - 19:45: RIH with 5'' drill pipe from 1676m to 1961m. Tripping speed 570m/hr.
19:45 - 20:15: Changed to 5½" handling equipment.
20:15 - 21:15: RIH with 5½'' drill pipe from 1961m to 2534m. Reduced running speed due to hole not taking correct volume. Tripping speed 573m/hr.
21:15 - 21:45: RIH open hole from 2534m to 2648m. Performed kick drill 41 sec.
21:45 - 22:00: Flow checked well on trip tank, 670l gain in 7 minutes.
22:00 - 22:30: Shut in well on UPR pipe ram. Monitored pressure build up on choke. No pressure build up seen. Heavy rain, rain water into well 6 l/min.
22:30 - 22:45: Opened choke and flow checked with fully open choke well static.
22:45 - 23:00: Flushed across BOP prior to opening same.
23:00 - 23:15: Broke out FOSV and made ready for tripping.
23:15 - 23:30: Lined up to run in on active pit due to large amounts of rain water going into mud.
23:30 - 00:00: Continued RIH from 2648m to 2884m.

24-hour summary: None
Hourly activities:
00:00 - 02:30: Continued RIH from 2884m to 4061m.
02:30 - 03:00: M/u TDS, establish circulated at 500 LPM. Washed down from 4061m and tagged TD 4091m. SPP increased from 23 bars to 28 bars. P/u 5 m off BTM to 4086m.
03:00 - 05:30: Started to circulation. Increased rate from 500 LPM to 1500 LPM, observed MAX loss rate 6 m Beamed back the rate to 1250 LPM 77 bars. Total losses during circulation 4. 3m Maximum gas at bottoms up 2 Meanwhile held pre-job meeting prior to perform cement job.
05:30 - 06:00: Attempted to pressure test line from CMT unit to standpipe on rig floor. No go due to minor CMT pump issue and wash pipe failure.

24-hour summary: None
Hourly activities:
06:00 - 06:30: Lined up from cement unit to string. Mixed pump 9,75 m of 1,90 SG slurry 800 LPM.
06:30 - 07:00: Displaced cement with rig pump 1. 32 SG OBM 1250 LPM. After 15. 5 m pumped catch up with cement and pump pressure increased to 44 bars. Total displacement volume 20. 9m Lost 3. 9m during displacement.
07:00 - 08:00: Held tool box talk and POOH from 2633m to 2350m. Pulled dry w/ 2-3 min/std. Through cement plug.
08:00 - 08:15: Pumped 2,5m 1,32sg OBM at 2350m to clean stinger.
08:15 - 08:45: Continued POOH from 2350m to 2034m. Tripping speed 632 m/hr.
08:45 - 13:00: Loaded 2x sponge balls and circulated with 1,32sg OBM, 120 RPM/1000 LPM observed losses 6m Reduced to 120 RPM/500 LPM. Circulated w/ stable returns until cement plug set up.
13:00 - 13:15: Monitored well on trip tank. Well static.
13:15 - 13:30: Racked back one stand. Conducted kick drill 50 sec.
13:30 - 14:00: Flushed manifold after cement job. While hanging off the TDS block.
14:00 - 16:15: Slip and cut drill line.
16:15 - 16:45: Pumped slug 7. 8m 1. 68 SG chased with 3. 6m of 1. 32 SG OBM. Simultaneously changed out master bushing to PS-21 slips.
16:45 - 17:15: Function tested BOP.
17:15 - 17:30: Racked last stand 5½" DP, broke out and laid out x-over.
17:30 - 19:00: Continued POOH from 1961m to 1310m. Tripping speed 434 m/hr.
19:00 - 19:15: Held tool box talk with crew. Checked iron roughneck, pipe handler, elevator and PRS dies.
19:15 - 20:45: Continued POOH with 5" DP from 1310m to 250m. Monitored well on trip tank. Tripping speed 707m/hr
20:45 - 21:15: Changed out handling equipment from 5"-3½".
21:15 - 21:30: POOH with 3½" DP, laid out singles from 250-241m. HTS roller failed.
21:30 - 21:45: HTS rollers failed to stop. As running HTS and rollers in manual. Rollers did not stop after command. This caused 3½" DP to tip off the last roller post. The DP end landed on the cantilever. No personnel in area due to area had been barried prior to commencing operation. Installed FOSV and monitored on trip tank.
21:45 - 22:15: Barried off operation area on drill floor and cantilever. Investigated incident. Documented incident by taking pictures.
22:15 - 22:30: Held tool box talk and removed the 3½" DP from HTS rollers.
22:30 - 00:00: Maintenance team investigated the causes.

24-hour summary: None
Hourly activities:
00:00 - 01:15: Continued investigation of the incident. Simulated incident. Found HTS rollers got stop signal but had too long slowing down period. Investigated for hydraulic or electrical error. On 2nd simulation attempt the system worked normal, rollers stopped as they should. Unable define the error.
01:15 - 02:00: Held tool box talk and removed the HTS rollers.
02:00 - 04:00: Continued POOH with 3½" DP from 241m to surface and laid out 3½" DP on cantilever.
04:00 - 05:15: Held tool box talk and leak tested cement line to rig floor 200 bars/5mins. Attempted to pressure test the 2nd cement plug. Pressure up against shear ram 50 bars and increased pressure in 20 bars increments. At 110 bars pressure drop rapid to 70 bars. 0. 95 m pumped 0. 6 m return. Trip tank steady.
05:15 - 06:00: Prepared for RIH with 8¼" drill out BHA.
06:00 - 08:00: Prepared for RIH with 8¼" clean out BHA.
08:00 - 10:30: RIH with 8¼'' clean out BHA. Removed nozzles in bit.
10:30 - 10:45: Changed out master bushing to ps21 slips.
10:45 - 14:15: RIH with 5'' drill pipe from 125m to 1510m. Filling pipe every 10 stands. Closed end displacement, monitoring returns on trip tank. Tripping speed 395 m/hr. 5'' elevators not closing probably on 5'' drill pipe.
14:15 - 14:30: Investigated slipped stand in PRS and elevator.
14:30 - 15:30: Continued RIH with 5" DP from 1510m to 1836m. Tripping speed 326 m/hr.
15:30 - 16:00: RIH from 1836m to 2034m, up/down weight 129/112 MT. Tripping speed 198 m/hr.
16:00 - 16:45: Started circulation, staged up pumps from 450 to 2000 l/min, SPP 21. 5 to 99. 4 bars.
16:45 - 19:00: Washed down from 2034m to 2401m, down/up weight 114/131 MT. 2000 l/m, 105bar, increased pumprate to 2500 l/m, 167bar. No cement over the shakers.
19:00 - 22:00: Continued washing down from 2401m to 2587m w/ 2500 LPM, SPP 167-175bars. Tight/overpull at 2587mt. Started rotation at 20rpm. Continued to wash/ream down from 2587m to 2629, torq 5-10 KNM. Occasionally wob at 5 MT for a few seconds, otherwise no wob. Took weight at 2629m 10 MT. Washed through. Reamed to 2631 m. Stopped rotation and set down 10 MT with 2500 LPM, firm cement at 2631m 50/50 cement/formation over the shakers. No gain/losses during clean out.
22:00 - 00:00: Circulated hole with 2500 LPM 80 RPM and reciprocated the string. Size of the cutting in return cement ø1" and formation chips 2" x ½" x 1/8". Circulated 3 bottoms up. After 2nd bottoms up 90 formations cuttings back. No gain/losses during clean out. Decided to pump out to 9 5/8" casing shoe.

24-hour summary: RIH with 8¼" clean out BHA. Washed down from 2034m to 2629m, rate 2500lpm SPP 167-175bars, 80 RPM. Tagged and set down 10 MT at 2631m firm cement. Cleaned out hole having large cuttings back over the shakers.
Hourly activities:
00:00 - 00:30: Drill crew supplied with stretcher team to carry person from hospital to the hellideck. Meanwhile slowly pumped out of open hole w/2500 LPM.
00:30 - 01:15: Pulled out into the shoe at 2521m pumping.
01:15 - 03:00: Circulated hole clean inside the shoe at 2500 LPM no rotation. 2 bottoms up before hole clean. Meanwhile serviced TDS. Problem with trip tank.
03:00 - 03:15: Lever difference in trip tank. Investigated same.
03:15 - 03:30: Flow checked well static.
03:30 - 04:00: Pumped 8 m slug 1. 71 SG OBM chased with 3. 6m SG OBM, at 670 LPM 26 bars.
04:00 - 04:30: Started to POOH from 2521m to 2359m. Observed a 0,5 m3 gain. Tripping speed 324 m/hr.
04:30 - 04:45: Flow checked well static.
04:45 - 05:15: Continued POOH from 2359m to 1839m. Tripping speed 1040 m/hr.
05:15 - 05:30: Changed to 5" handling equipment.
05:30 - 06:00: Continued POOH from 1839m to 1470m. Tripping speed 738 m/hr.
06:00 - 07:30: Continued POOH from 1470m to 125m. Tripping speed 896 m/hr.
07:30 - 07:45: Flow checked prior to lay out BHA static. Simultaneously changed out ps21's to master bushing.
07:45 - 09:30: Hold tool box talk and racked back/laid out BHA. Problem with BX elevator.
09:30 - 09:45: Investigated leak on BX elevators and repaired same.
09:45 - 10:15: Continued to laying out BHA.
10:15 - 10:30: Cleared rig floor.
10:30 - 11:15: Rigged up prior to pick up 3½" DP. Tested HTS rollers.
11:15 - 12:00: Boat in. Waited for crane.
12:00 - 14:30: Picked up and ran in 3½" DP from surface to 299m.
14:30 - 15:00: Changed to 5" handling equipment.
15:00 - 18:30: RIH from 299m to 2009m. Pump 1m every 500m to ensure 3½" not plugged. Tripping speed 488 m/hr.
18:30 - 19:00: Changed to 5½" handling equipment.
19:00 - 19:45: RIH from 2009m to 9-5/8" shoe at 2530m. Tripping speed 694 m/hr.
19:45 - 21:15: Washed down from 9-5/8" shoe to 2638m at 2500 LPM, 233 bars. Did not tag previous TD at 2631m. No pressure increase in SPP or weight difference as washing down.
21:15 - 21:30: Pulled up to 2631m. Continued circulating with 2500 LPM, 233 bars and 100-120 RPM, reciprocating the string. Some cuttings over shakers. No gain or losses during circulation. Meanwhile prepared 6m 1. 34 SG WBM hi-vis pill. Problem with mixing the pill.
21:30 - 22:45: Problem with mixing. Found hopper blocked and cell feeder did shut off.
22:45 - 00:00: Mixed and prepared 6m 1. 34 SG WBM hi-vis pill.

24-hour summary: None
Hourly activities:
00:00 - 00:30: Changed primary seal in diverter overshot.
00:30 - 02:00: Picked up diverter. Removed outer ring and automatic slips from RT. Landed diverter. Removed diverter running tool. Removed diverter inserts.
02:00 - 02:45: Installed outer ring and automatic slips in RT. Laid out diverter running tool. Cleaned and tidied drillfloor.
02:45 - 03:00: Held toolbox talk prior to making up 9 5/8" EZSV.
03:00 - 03:45: Picked up and made up EZSV running tool to stand of 5 1/2" DP. Made up 9 5/8" EZSV to running tool.
03:45 - 06:00: RIH with 9 5/8" EZSV on 5 1/2" DP from surface to 610 m MD. Tripping speed 271 m/hrs.
06:00 - 07:00: RIH with 9 5/8" EZSV from 610 m to 800 m MD. Tripping speed 190 m/hrs.
07:00 - 07:15: Held toolbox talk handover meeting.
07:15 - 08:45: RIH with 9 5/8" EZSV from 800 m to 1416 m MD. Tripping speed 410 m/hrs.
08:45 - 09:30: Made up TDS to stand of 5 1/2" DP. RIH to EZSV setting depth at 1437 m MD. Attempted to wash across setting area at 70 LPM, but unable to maintain flowrate due to increasing SPP bar MAX). Took up/down weights 115/103 MT, neutral 109 MT.
09:30 - 10:00: Set EZSV at 1437 m MD by applying 35 righthand rotations torque 2-4 KNM. Picked up weight and sheared setting sleeve with 26 MT overpull. Picked up 3 m above plug and ran back in to 1437 m MD and tagged plug with 10 MT set down OK.
10:00 - 11:30: Pulled back to 1432 m MD. Displaced well from 1,34 SG to 1,44 SG OBM at 2900 LPM SPP 100 bar. Flowchceked well for 10 min well static.
11:30 - 12:00: Pumped 5 m3 1,77 SG slug and chased to drillfloor. Allow mud level to settle.
12:00 - 13:30: POOH with EZSV setting tool from 1432 m MD to surface. Tripping speed 954 m/hrs.
13:30 - 14:00: Removed autoslips and laid out EZSV setting tool.
14:00 - 14:30: Picked up and made up wbrrt/ jetting sub to stand of 5 1/2" DP.
14:30 - 15:15: RIH with wbrrt/jetting sub to 139 m MD on 5 1/2" DP. Jetted accross wellhead at 3100 LPM SPP 34 bar 5 RPM. Set wbrrt in wearbushing.
15:15 - 16:15: Attempted to pressure test BOP. Observed rapid leak off at 20 bar. Attempted to seat wbrrt twice and re-test negative. Observed mud return in pipe indicating leakage accross wbrrt.
16:15 - 17:15: Released wbrrt from wearbsuhing. POOH from 139 m MD to surface. Reset wbrrt according to vetco instructions.
17:15 - 17:30: Held toolbox talk for running 18 3/4" BOP test plug.
17:30 - 18:00: Picked up and made up 18 3/4" BOP test plug. RIH with test plug on 5 1/2" DP from surface to 139 m MD. Seated test plug in wearbushing.
18:00 - 00:00: Pressure tested BOP and ibops to 20/345 bar 5/10 min.

24-hour summary: None
Hourly activities:
00:00 - 04:15: POOH with 9 5/8" 53,5# c95 casing from 707 m MD to surface. Pulling speed 14 jts/hr.
04:15 - 06:00: Laid down cut 9 5/8" casing joint. Cleaned and tidied drillfloor. Removed 9 5/8" elevator inserts. Rigged down and removed odfjell casing tong. Removed PS-30 slips from RT.
06:00 - 07:00: Installed masterbushing, bowl and hole cover. Removed casing running equipment from drillfloor.
07:00 - 07:15: Held toolbox talk handover meeting.
07:15 - 08:45: Broke and laid out 5 1/2" HWDP and 8 1/4" DC. Broke and laid down 10 3/4" bowen spear and pack off assy. Changed dies in PRS.
08:45 - 09:45: Picked up and made up wbrrt. Made up nominal seat protector. RIH with wbrrt/nsp on 5 1/2" DP from surface to 139 m MD. Set nominal seal protector in wellhead.
09:45 - 10:45: POOH with wbrrt from 139 m MD to surface. Reset wbrrt, broke and laid out same.
10:45 - 11:00: Held toolbox talk for running cement string.
11:00 - 11:15: Changed from 5 1/2" to 5" handling gear.
11:15 - 11:45: RIH on 5" DP from surface to 325 m MD.
11:45 - 12:15: Changed from 5" to 5 1/2" handling gear.
12:15 - 14:00: RIH on 5 1/2" DP from 325 m to 1363 m MD.
14:00 - 15:15: Laid out single from 5 1/2" stand for space out purposes. Made up TDS to string. Broke circulation and staged up pumps to 2500 LPM SPP 45 bar. Washed down from 1363 m to 1422 m MD. Hung up on cut casing at 1422 m MD and observed SPP increasing to 75 bar. Picked up and started rotation at 10 RPM.
15:15 - 17:00: Passed cut at 1422 m, RIH and tagged EZSV at 1435 m MD. Picked up 1 m to 1434 mmd. Circulated and condtioned mud at 2500 LPM SPP 46 bar 85 RPM 3-8 KNM.
17:00 - 17:15: Lined up cement unit and performed line test to 200 bar 5 min OK. Pumped 16 m3 og 1,7 SG cement spacer using rigpumps at 2000 LPM SPP 30 bar. Chased spacer with 2,6 m3 OBM to fill standpipes.
17:15 - 18:00: Pumped 22,9 m3 2,0 SG cement at 800 LPM. After 14 m3 pumped, picked up 1 m to 1433 m MD. Chased cement slurry to drillfloor with 890 liters of water. Theoretical top of cement at 1318 m MD.
18:00 - 18:15: Using rig pumps displaced cement with 12,3 m3 OBM to give 1 m3 underdisplacement in string. Pump rate 2000 LPM slowing down to 500 LPM at the end of the displacement. Observed no pressure bulid up during displacement.
18:15 - 19:15: Pulled 5 stands of dry pipe from 1434 m to 1238 m MD. Pulling speed 6 min/std.
19:15 - 21:15: Inserted 2 ea sponge balls for cleaning string. Stepped up pumps to 2500 LPM SPP 42 bar and rotated at 120 RPM. Circulated out excess spacer and cement. Sampled mud and routed contaminated returns to separate pit. No visual observation of cement returns.
21:15 - 22:00: POOH with 1 stand wet. Pumped 5m3 1,67 SG slug. Allowed mud levels to settle.
22:00 - 23:15: POOH with 5 1/2" DP from 1198 m to 325 m MD. Tripping speed 700 m/hrs.
23:15 - 23:30: Changed from 5 1/2" to 5" handling gear.
23:30 - 00:00: POOH with 5" DP from 325 m to 90 m MD. Tripping speed 470 m/hrs.

24-hour summary: None
Hourly activities:
00:00 - 00:15: POOH with 5" DP from 90 m MD to surface.
00:15 - 04:30: Waited on cement to set up. Meanwhile tested FOSV. Re-arranged stands of 9 5/8" casing racked back in derrick. Moved stands to aft setback area, doped box end of stands.
04:30 - 04:45: Held toolbox talk prior to making up 17 1/2" drilling BHA.
04:45 - 06:00: Picked up and hung of 17 1/2" powerdrive. Picked up and made up powerpulse HF. Picked up and made up arc-9. Picked up and made up 9 5/8" NMDC single.
06:00 - 07:00: Picked up and made up 9 1/2" NMDC. Picked up and and made up 7 5/8" reg x 6 5/8" reg box crossover.
07:00 - 07:15: Held toolbox talk handover meeting.
07:15 - 10:30: Continued to make up 17 1/2" drilling BHA. Had problems to access fingerboard with PRS due to conflict with dual latch bracket. Set ZMS in override and ran PRS manually. Made up and ran stand with jar and 8 1/4" DC. Made up and ran stand with accelerator and 8 1/4" DC. Installed totco ring. Made up 6 5/8" reg x 5 1/2 FH box crossover. Had problems with PRS when attempting to pick up stand of 5 1/2" HWDP.
10:30 - 11:45: Troubleshot PRS weight indicator and PRS elevator problems.
11:45 - 12:30: Made up stand of 5 1/2" HWDP. Removed masterbushing. Installed autoslips in RT. RIH with 17 1/2" BHA on 5 1/2" DP to 147 m MD. Prevailing problems with PRS when attempting to pick up stands of 5 1/2" HWDP.
12:30 - 00:00: Troubleshot situation with PRS. PRS not supplying sufficient hydraulic pressure to gripper claw. Performed faultfinding in hydraulic and electrical system.

24-hour summary: Made up 17 1/2" drilling BHA. Had problems picking up 5 1/2" HWDP with PRS. Troubleshot PRS problems. Meanwhile installed pump in sub and circulated on well at 2300 LPM. Perfomed PM in drilling areas.
Hourly activities:
00:00 - 06:00: Perfomed faultfinding in PRS hydraulic and electrical system. Meanwhile installed pump in sub on drillstring and circulated in well at 2300 LPM to power down MWD batteries. Performed cleaning and general PM in drilling areas.
06:00 - 19:00: Troubleshot problems with aft PRS. Found fault to be in control system, not supplying enable signal to solenoid valve which regulates the hydraulic pressure to the gripper claw. Meanwhile perfomed cleaning and general PM in drilling areas.
19:00 - 22:00: Cleared drillfloor. Installed flush joint elevator on PRS. Tested PRS OK.
22:00 - 22:30: Calibrated blocks
22:30 - 22:45: Rigged down cement hose and pump in sub.
22:45 - 23:45: Removed masterbushing. Installed PS-30 in rotary.
23:45 - 00:00: Held toolbox talk prior to RIH with 17 1/2" drilling BHA.

24-hour summary: Repaired aft PRS. RIH with 17 1/2" drilling BHA from 228 m to 1235 m MD. Performed choke drill. Washed from 1235 m to 1301 m MD. Drilled/washed soft cement from 1301 m to 1318 m MD. Tagged hard cement at 1318 m MD.
Hourly activities:
00:00 - 02:30: RIH with 17 1/2" drilling BHA on 5 1/2" DP from 228 m to 1174 m MD. Tripping speed 370 m/hrs.
02:30 - 03:00: Filled drillsting pumping at 500 LPM.
03:00 - 03:30: Performed choke drill.
03:30 - 04:15: RIH with 17 1/2" drilling BHA on 5 1/2" DP from 1074 m to 1235 m MD. Made up TDS to drillstring.
04:15 - 05:00: Washed from 1235 m to 1301 m MD. Parameters 2000 LPM 30 RPM SPP 60 bar torque 4-5 KNM wob 1 MT.
05:00 - 05:30: Washed/drilled soft cement from 1301 m to 1315 m MD. Parameters 2000 LPM 30 RPM SPP 60 bar torque 5-15 KNM wob 0-5 MT.
05:30 - 06:00: Increased pump rate to 4000 LPM. Washed/drilled down to 1318 m MD and tagged hard cement. Parameters 4000 LPM 210 bar SPP 30-50 RPM torque 5-13 KNM wob 3-8 MT.
06:00 - 10:30: Drilled cement in 20" casing from 1318 m to 20" shoe depth at 1368 m MD. Drilling parameters 4000 LPM SPP 193-205 bar ECD 1,43-1,46 5-8 MT wob 60 RPM torque 6-12 KNM.
10:30 - 15:00: Drilled cement below 20" shoe and new formation from 1368 m to 1381 m MD. Encountered soft cement underneath shoe. Initiated kick-off. Drilling parameters 4000 LPM SPP 190 bar ECD 1,43-1,44 1-2 MT wob 60 RPM torque 6-10 KNM. Operations transferred to f-15

24-hour summary: Drilled cement in 20" casing from 1318 m to 1368 m MD. Drilled cement/new formation from 1368 m to 1381 m MD. Initiated kick off of f-15.