Hourly activities:
00:00 - 01:45: Continued working string from 916 m to 887 m MD. Worked string with rotation/flow as limited by torque and overpull. Parameters flow 200 LPM SPP 2-3 bar 30 RPM torque 6-33 KNM.
01:45 - 03:15: POOH with 26" drilling BHA from 887 m to 540 m MD. Worked thight area from 650 m to 640 m MD.
03:15 - 03:45: Displaced well above 500 m MD to 1,40 SG KCL mud while pullling stand. Pumped a total of 143 m3 mud. Parameters flow 4500 LPM SPP 200-210 bar 30 RPM torque 4-7 KNM. Issued notice to shut-in adjacent wells at 03 30.
03:45 - 05:15: POOH with 26" drilling BHA from 495 m to 250 m MD. Worked tight area from 450 m to 430 m MD.
05:15 - 05:30: At 250 m MD, topped up well by pumping 15 m3 1,40 SG KCL mud. Flow 1800 LPM SPP 34 bar. Meanwhile performed toolbox talk for pulling BHA.
05:30 - 06:00: POOH with 26" drilling BHA from 250 m to 146 m MD. Removed PS-21 slips and installed master bushing. Confirmed adjacent wells shut in at 05 45.
06:00 - 06:15: POOH with 26" drilling BHA from 146 m MD to 136 MD. Observed with ROV when comming through CTS funnel 30" conductor.
06:15 - 07:00: POOH and racked back stand of 8,25" DC. Broke and laid out jar.
07:00 - 09:45: Broke and racked back stand of 8,25" DC and stand of 9,25" NMDC. Broke connection between GMWD and MWD, retrieved gyro insert, re-made connection. Attempted to rack to rack back 26" drilling BHA in derrick negative too high weight in PRS. Large amounts of clay trapped on BHA.
09:45 - 10:00: Held toolbox talk for breaking BHA.
10:00 - 11:45: Broke and laid out UBHO, MWD, GMWD and stab/motor/26" bit. Meanwhile removed CTS funnel from conductor using aft crane assisted by ROV.
11:45 - 12:45: Cleared and tidied drillfloor. Prepared for rigging casing running equipment.
12:45 - 14:00: Removed DP elevator and drilling bails. Moved casing casing tong and frame to IR tracks. Hooked up hydraulics to casing tong.
14:00 - 14:15: Held toolbox talk prior to derrick inspection. Isolated equipment.
14:15 - 15:00: Performed inspection of derrick and TDS using manrider.
15:00 - 19:00: Made up lafleur circulating tool. Installed long bails. Installed 310 MT BX elevator and hooked up hydraulics. Meanwhile ROV performed digiquartz measurement of conductor elevation releative to f-15 1 mm deviation.
19:00 - 19:30: Held toolbox talk for running 20" casing. Made adjustments on lafleur spacing.
19:30 - 21:30: Picked up 20" shoe joint. Hung off in rotary and secured with dog collar. Tested float for flowthough OK. Picked up and made up 20" intermediate joint. Adjusted stabbing arm and casing tong. Applied threadlock and made up connection to 46000 ft lbs available torque). RIH.
21:30 - 22:15: Picked up 20" landing collar joint. Checked threads. Applied threadlock and made up connection to 46000 ft lbs. Found spacing to make up mark to be approx 5 mm short. Discussed situation and decided to continue operation.
22:15 - 00:00: RIH with 20" 133# n80 tenaris er casing w/centralizers from 40 m to 78 m MD. Checked floats for inflow OK.

24-hour summary: POOH with 26" drilling BHA. Racked back DC, broke and laid out 26" drilling BHA. Rigged up for running 20" casing. Ran 20" casing from surface to 292 m MD.