Preparation for 1st Gas

2 Days before gas:
Dewatering, by launching the PIG ( PIG-MEG-PIG-MEG-PIG-MEG-PIG-MEG-N2 to pressurised)to clear all the water from the service and production lines.
- PIG not able to launch successful, flush & push with diesel ( flushing diesel booster pump at ~ 180m3/hr max)
- Clients were happy with the amount of water, MEG and Diesel collected back in the tank.

One day before gas:
1) Function test the subsea valves opening and closing
2) Running the MEG injection to pressurised
3) Leak was found at ambilicals but fixed the next day.
4) Check all the vessel lined up for gas and condensate for leakage ( pressurised up to 35 barg wt N2 by Halibuton man)
5) Pressure not holding in some vessel due to some PV valves were passing. Fixed the leak by maintenance sup, both mech and inst. Check that all the open end to be pluged.
6) Circulate the diesel through the backup heater( swap the specticle blind on the heating medium inlet of the heater)to heat up the diesel to 72C (take few hrs to heat up around 20ton of diesel in the tank). Diesel to be heated up to 90 C upstream of the choke valve to control the temperature of the gas coming up from the well to be below -5C.
7)Meeting among the decision makers about the preparation. New time decided to be the next day 6am.to bring gas onboard.
8)Have to wake up around 4am to prepare the diesel system (temperature, and starting the Diesel pressuring pump, and keep circulating, to check temperature at upstream the choke with temperature gun for more accurate temperature measurement.


Some brief notes about our preparation for bringing the gas on to the vessel:

1) Safety note about the use of Camera ( prohibited w/o permit to work and tape off the flash light)
2) Safety note about the use of tools ( any tools that can create spark are not allowed, brass tool can be used)
3) Stop the daily activities ( construction, commissioning and daily deck operation and receiving supply boat etc), personnel are asked to stand by for immediate help if required.
4) Lock Cargo control room middle entrance. Only key personnel are allowed.
5) Production meeting to dedicate job to grp of people and the focal point of each grp.

ok la tomorrow gonna be the day...so have to sleep earlier tonight...