Hourly activities:
00:00 - 03:15: P/u singles while RIH w/ EZSV/CUTTER BHA on 5 1/2" DP from 375 mmd to 1198 mmd. Average running speed 253 m/hr.
03:15 - 04:00: M/u TDS and filled pipe w/ 400 l/min. Pumped 615 strokes/13,6 m3.
04:00 - 04:45: P/u singles while RIH w/ EZSV/CUTTER BHA on 5 1/2" DP from 1198 mmd to 1313 mmd. Average running speed 153 m/hr. Experienced issues with HTS.
04:45 - 05:00: Troubleshot issues on HTS. HTS not feeding pipe all the way to elevator.
05:00 - 05:30: P/u singles while RIH w/ EZSV/CUTTER BHA on 5 1/2" DP from 1313 mmd to 1393 mmd. Average running speed 160 m/hr. Unable to get proper latch on elevator.
05:30 - 06:00: Changed elevator.
06:00 - 06:15: P/u singles while RIH w/ EZSV/CUTTER BHA on 5 1/2" DP from 1313 mmd to 1409 mmd.
06:15 - 06:30: Removed power rollers and set up to run stands from derrick.
06:30 - 07:00: RIH w/ EZSV/CUTTER BHA on 5 1/2" DP from 1503 mmd to 1744 mmd.
07:00 - 07:15: Continued RIH EZSV/CUTTER BHA on 5 1/2" DP from 1744 mmd to 1812 mmd, restricted speed due to packer
07:15 - 07:45: TBT and equipment checks
07:45 - 08:45: Continued RIH with EZSV and casing cutters from 1812m to 2179m restricted due to packer
08:45 - 09:15: Investigated fault on draw works motor 3
09:15 - 09:45: Continued RIH from 2179m to 2348m restricted due to packer
09:45 - 10:00: P/u wild single from cant. For space out and RIH from 22348m to 2362m
10:00 - 10:45: Filled pipe 400 lts/min. Up WT 147, dwn WT 132
10:45 - 11:30: Set EZSV plug at 2390m mid element. 38 turns and pull up in 9t increments. Pins sheared at 169t. Pulled up 2m and rotated string 25 turns and tag with 7t
11:30 - 12:30: Spaced out and lined up for pressure test of EZSV. Close UPR. Verify line with 20 bar. Pressure tested 20 bar, 5 mins/ 165 bar, 10 mins. Lined back up for drilling and opened BOP
12:30 - 13:15: Pulled up to cutting depth, took up WT 146t and down WT 131t rotating torque with pumps off at 100 RPM 5-10 KNM rotating WT 138t, mud pump pressures at 300lts/ min 12 bar, 400lts/min 34, 500lts/ 53 bar.
13:15 - 13:30: TBT for cutting the 9 5/8in casing
13:30 - 13:45: Started cutting 9 5/8in casing, staging up mud pumps 300lts/ min 16-17 bar then up to 400lts/ min 33 bar 80 RPM, TQ 8 KNM. Cut at 2374m. Pressure dropped from 33 bar to 0 bar. Torque went down to free rotation value.
13:45 - 14:00: Flow check well on trip tank. Static
14:00 - 14:30: Started mud pumps 400lts/ min 0 bar. Picked up 0. 5m and observed stand pipe pressure increased to 33 bar, carefully RIH and observed pressure drop at 2374m to 0. 8 bar. Set 2t on blades to verify cut. Measured cut window 10 cm.
14:30 - 15:00: H2s detected on the baker gas trap in flow line. Discuss and plan next phase in operation
15:00 - 16:45: Circulated 2 x bottoms up staging up mud pumps to 1700 lts/ min 30 bar. No gas detected in shakers. Baker gas trap showing 2 ppm h2s in fluid.
16:45 - 17:00: Lineed up over trip tanks and installed mud bucket line
17:00 - 19:00: POOH wet with mudbucket from 2389m to 1543m
19:00 - 19:15: TBT with new crew
19:15 - 20:45: POOH from 1543m to 752m.
20:45 - 21:00: Layed out wild sgl to cat walk.
21:00 - 21:45: POOH from 738m to 334m.
21:45 - 22:00: Changed out auto slips.
22:00 - 22:15: POOH from 334m to 13m.
22:15 - 22:45: Broke down BHA, inspected same
22:45 - 23:00: Cleaned and cleared rig floor after trip.
23:00 - 23:15: TBT for running MST ret tool.
23:15 - 00:00: Pick up MST ret tool and function same prior to running

24-hour summary: Set EZSV in 9 5/8csg at 2390m, tested to 20/165 bar cut CSG, POOH retrieved MST seal RIH and cut surface tieback CSG, POOH, engaged spear and pull CSG hanger to surface started rigging up handling equipment