Hourly activities:
00:00 - 00:15: Cleaned and cleared rig floor
00:15 - 00:30: Changed BX inserts to 5in and prepared RTTS BHA components to p/u
00:30 - 01:45: M/u RTTS BHA and RIH with 2x stands of 8,25 DC to 74m
01:45 - 02:00: RIH w/ 2x stands of DP from 74m to 147m
02:00 - 02:15: M/u TDS and set RTTS packer at 147m
02:15 - 02:45: Filled riser w/ 7. 3m3. Observed level dropped in riser 1 meter before stabilizing. Lined up TT pump and observed well static
02:45 - 03:00: Performed line test and closed BOP prior to pressure test above RTTS. Pressured up well to 6 bar and observe pressure bleeding off. Stop cement pump pressure dropped to zero
03:00 - 03:30: Opened BOP and monitored well on TT. TT level drop over 20 min before stabilizing
03:30 - 04:00: Attempted to pressure test again. Good low pressure test at 20bar/5min. Continued to pressured up to 25 bar and observed pressure bleeding off. Stopped cement pump and pressure dropped to zero
04:00 - 04:30: Opened BOP and monitored well on TT. Observed loss rate 4. 8m3/hr. Released RTTS packer, loss rate increased to 10. 8m3/hr
04:30 - 05:00: Picked up w/ RTTS packer to 142. 5m depth above top shot of 10 3/4in CSG perforation) set RTTS at 142,5m. Well static. Pressure tested above RTTS to 20bar/5min and 50bar/5min. Good test. Released RTTS. Loss rate 10m3/hr
05:00 - 05:45: M/u new stand. RIH and RTTS packer at 155m. depth below bottom shot of 10 3/4in CSG perforation) loss rate 10m3/hr. Stopped TT pump and let level drop
05:45 - 06:15: Filled pipe, performed line test. Attempted to pressure test below RTTS. No success. Pumped 1 m3, not able to achieve pressure build up
06:15 - 06:30: Released RTTS
06:30 - 07:30: POOH on DP from 155m to 8m
07:30 - 07:45: Changed inserts in elevator
07:45 - 08:00: L/d RTTS BHA
08:00 - 08:15: Cleaned and cleared rig floor
08:15 - 11:30: Evaluated situation. Discussed situation w/ onshore organisation. Agreed way forward to attempt to cure losses w/ LCM pill meanwhile serviced drilling equipment. Housekeeping. Adjusted link tilt, performed maintenance on ps21, TDS, greased both prss.
11:30 - 12:00: Filled the well w/ sea water, observed returns at surface after 8,7 m3 pumped. Prepared and start mixing 400kg/m3 LCM pill in pump room
12:00 - 12:15: Continued mixing 400kg/m3 LCM pill in pump room. Hopper is packing off while mixing. Continued to mix manually. Worked good flow checked on TT. Loss rate 10m3/hr
12:15 - 12:45: Continued mixing 400kg/m3 LCM pill in pump room changed handling equipment and prepared to RIH w/ drill pipe
12:45 - 14:00: Continued mixing 400kg/m3 LCM pill in pump room RIH w/ 5,5in DP from surface to 845m
14:00 - 19:30: Continued mixing LCM pill while monitoring well. Loss rate 11m3/hrs. Meanwhile isolated and removed suction strainers in MP#2
19:30 - 21:30: Pumped 15m3 1. 3sg 400kg/m3 LCM pill 550 LPM. When pill starts to exit string, decreased pump rate to 160l/min. Lined up TT and kept volume in TT static by adjusting pump rate between 160-200l/min to avoid LCM going up annulus and avoid SW from annulus dropping down and mix with LCM. Pumped and pulled to top of stand when 2 m3 LCM left in the DP string. Stopped pumping after all LCM volume out of the DP string. Loss rate during pumping and displacing LCM pill 11m3/hr
21:30 - 22:15: Stop pumping and monitor well on TT for 30 min. Loss rate 10 m3/hr
22:15 - 23:00: POOH w/ 5,5in DP from 900m to surface. Average pulling speed 1200 m/hour
23:00 - 23:15: Removed ps21, installed master bushing
23:15 - 23:30: Performed pre-job meeting to RIH w/ RTTS
23:30 - 00:00: M/u RTTS BHA from surface to 88m

24-hour summary: tested well w/ RTTS packer, located loss area mixed and pumped LCM pill. Monitored well