Hourly activities:
00:00 - 00:45: Worked to p/u cement head in moonpool using overhead crane and transfered to TDS lifting chains
00:45 - 01:45: M/u cement head to the xmas tree, installed split hatch in moonpool
01:45 - 03:30: Built scaffolding around cement head in moonpool
03:30 - 03:45: Performed pre-job meeting to pressure test cement head
03:45 - 04:45: Confirmed line up, flushed and pressure tested cement head and bleed off manifold to 20/345 bar for 5/10 min
04:45 - 05:00: Performed pre-job meeting before bullheading operation
05:00 - 05:30: Lined up to pump into the well. Opened HMV. Wellhead pressure went up to 20 bar. Bled off pressure to MGS. Pressured up DHSV control line to 520bar. Pressured up above DHSV to equalize pressure. Observed indecation of DHSV openning on hydraulic pump pressure gauge.
05:30 - 06:00: Pumped 10m3 of wash pill, 1100 l/min 134bar
06:00 - 08:00: Bullheaded sea water into the well, 1300 l/min 143 bar, totally pumped 140m3. Meanwhile carried out TBT for cement job
08:00 - 09:45: Lined up valves on the cement head, released bottom dart, mixed and pumped 13. 6m3 1,90sg cement, 600l/min. Pressure 130 bar, decreasing to 90bar, indicating cement moving down in the tubing. Displaced lines w/ 0,9m3 of hi-vis pill. Released top dart. Pumped 12,2m3 of hi-vis pumped 13,1m3 of hi-vis). Displaced w/ 37,7m3 of sea water at initial rate of 1000lpm. Increased pumping rate to 1300l/min 101bar. Reduced pumping rate in the end of displacement to 700l/min 83bar. Switched to contamination pill. Observed rapid increase in pressure while pumping contamination pill indicating cement plugging into perforations. Shut down after having pumped 3,5m3 contamination pill, 111 bar and monitored WH pressure decline. Recorded final stabilized squeeze pressure of 60bar. Closed swab valve. Verified volumes pumped by checking volumes left in the pits and silos. Theoretical top of cement 2755mmd. DHSV was cycled 3 times after 30m3 of sea water displacement was pumped
09:45 - 13:00: Flushed manifolds after cement job. Worked aloft in derrick to repair crown grease system. Lined up and prepare to pressure test BOP. Meanwhile WOC
13:00 - 13:45: Performed BOP test no1 20/345 bar 5/10 minutes. Cycleed HMV and MMV. Meanwhile WOC
13:45 - 14:45: Lined up for BOP test no2, flushed 0. 5m3 through kill and choke lines
14:45 - 15:45: Performed BOP test no2 20/345 bar 5/10 minutes. Cycled HMV and MMV. Meanwhile pumped out dirty side of skimmer tank to mill tank, WOC
15:45 - 17:00: Lined up and performed BOP test no3 20/345 bar 5/10 minutes. Continued to clear out dirty side of skimmer tank, transfered to mud pits 7. 5m3. Lined up to bleed off pressure from XMT 110bar down to 62bar. Meanwhile WOC
17:00 - 17:30: Opened all low torque valves on cement head and pressure tested rig up against SV to 310 bar/10 minutes. Meanwhile WOC
17:30 - 18:15: Closed HMV bled off pressure above HMV from 72bar to 0. Opened SV, pressured up to 72bar to equalize, opened HMV. Pressured up well against cement plug with cement pump to 310bar/10min. Pumped 620liters. Good pressure test.
18:15 - 19:15: Carried out inflow test of cement plug. Bled down pressure in tubing to 10 bar. Monitored pressure pressure for 30 min. Pressure increased 3. 6 bar with clear decreasing trend towards the end. Good inflow test
19:15 - 22:00: Carried out inflow test of DHSV. Equalized pressure and opened swab valve, applied 310 bar to tubing. 770l pumped. Closed DHSV. Bled off pressure in tubing above DHSV to 240 bar. Monitored pressure above DHSV for 30 min for 70bar LP inflow test. Pressure increased 1. 5bar in 30 min with decreasing trend towards the end. Good LP inflow test. Bled down pressure in tubing above DHSV to 10bar. 110l bled off. Monitored pressure above DHSV for 30 min for 300bar HP inflow test. Pressure increased 2,4bar in 30 min with decreasing trend towards the end. Good HP inflow test. Equalized pressure above DHSV, pressured up control line to DHSV to 520bar to open DHSV. Bled off tubing pressure to 20bar. 710l bled off. Closed DHSV. Bled off remaining pressure from xmas tree. Meanwhile performed TBT to r/d cement head
22:00 - 23:30: Closed SV. R/d cement head. Removed hydraulic control hoses to HMV and DHSV. Broke off bleed off manifold from kill wing side
23:30 - 00:00: Worked to installed BPV plug for drop protection and xmas tree lifting cap. Meanwhile performed BOP test no4

24-hour summary: r/u cement head bullheaded well to sea water bullhead cement in 7in liner/perfs worked to test BOP, meanwhile WOC pressure tested and inflow tested cement plug inflow tested DHSV r/d cement head installed BPV plug