Hourly activities:
00:00 - 03:00: Waited on cement to set up. Meanwhile and tested lines for top up job tensioning system parts to centralizer deck
03:00 - 05:30: Held toolbox talk prior to pumping operation. Assessed cool cement sample still fingersoft. Lined up cement unit to UWG hose and top up pipe. Circulated at 30 LPM to check for potential flow bypass above cement on lower UWG shoe. Pressure built up to 5 bar with linear build, maintained pressure for 5 min, no pressure drop. Volume pumped 193 liter. Halted operation, bled back pressure and continued wating on cement to set up.
05:30 - 05:45: Restarted pumping operation to check cement shoe and burst disk on top up pipe. Pumped down cement unit and top up pipe. Pressured up to 53 bar 189 l, burst disk at 14 m below ML 159 m MD ruptured.
05:45 - 06:00: Attempted to do circulation test through UWG cement hose/ top up pipe. Got alarm on overpressured cement unit. Released pressure, but control screen froze up.
06:00 - 06:15: Troubleshooting on halliburton control screen. Unable to sign out alarms system freeze.
06:15 - 06:30: By manual operation of cement unit. Stepped up rate through cement hose top up pipe to 500 LPM, obtained same pressure drop as previously i. E. 50 bar at 500 LPM indicating open flow above bursted disk at 14 m below ML 159 m TVD.
06:30 - 07:15: Held pre job meeting. Prepared for cement job. Got ROV in position to operate centralizing rods in funnel, shifted handles and pressured up thorugh minireel to retract rods OK. Started mixing cement.
07:15 - 07:45: Performed remedial cement job. Pumped 10 m3 1,56 g-cement slurry. Pump pressure during cementing 70 bar. Pump rate 500 LPM. Displaced cement down cement hose and top up pipe with 1,1 m3 SW.
07:45 - 08:30: Broke cement hose in moonpool, inserted cement hose release ball. Let ball drop by gravity. Pressured up on cement unit and released cement hose. Flushed through manifold and cement hose. Flushed and cleaned cement unit.
08:30 - 08:45: Held toolbox talk prior to pulling cart.
08:45 - 09:00: Released cart from 30" conductor housing with 5 righthand turns. Readings on inclinometer before release pitch 0,25 roll 0,021
09:00 - 09:30: Broke out cement stand and laid out same. Pulled cart clear of template.
09:30 - 10:00: Pumped sponge for cleaning the 5 1/2 HWDP landing string.
10:00 - 11:00: Held prejob/information meeting for running LP drilling riser. Whole crew attended.
11:00 - 11:30: Held toolbox talk prior to pulling cart.
11:30 - 12:00: Repaired hydraulic leak on TDS.
12:00 - 14:00: POOH with cart on 5 1/2" HWDP. Laid out cart. Rigged handling equipment for 4 3/4" inner string.
14:00 - 14:15: Held toolbox talk prior to pulling 4 3/4" aluminium cement stinger.
14:15 - 15:15: POOH with 4 3/4" aluminium cement stinger and centralizers, laid down on pipe deck.
15:15 - 16:15: Cleaned and tidied drillflloor. Removed handling equipment for 30" condcutor and innerstring.
16:15 - 16:30: Held toolbox talk prior to installing cradles in HTS.
16:30 - 17:00: Installed cradles on HTS. Installed protector busing in tensioner deck.
17:00 - 17:15: Held toolbox talk prior to installing riser spider.
17:15 - 21:30: Removed master bushing and installed riser spider. Installed hydraulic lines and function tested spider. Installed protector bushing and tension ring in centralizer deck.
21:30 - 00:00: Picked up stress joint DCI joint 1st double, by simultaneous lift by deckcrane and TDS. Landed double in spider. Removed handling flange and installed guide rods on flange, installed gasket ring. Picked up 2nd double and landed on flange. Made up nuts according to bandak procedure.

24-hour summary: Performed remedial cement job by pumping through top up pipe. Released cart and POOH with same. POOH with 4 3/4" cement stinger. Rigged up for running low pressure drilling riser and ran same to 80 m MD. Installed guidewires.