RE: Good news....4 Sep 2018 11:44
I know the ex-OIM of the AM
Like many FPSO's there is a limit to what they can take in. They arent just like a fixed pipeline which can pump and pump and pump.
Its a csreful juggling act between abillity to get the oil on board, with restrictions on pipe and valve sizes etc
Then theres the quality of the oil coming on board. The poorer the quality then the longer it will take to clear out the impurities.
Then you have ullage space of the cargo tanks and the ability of the FPSO marine crew to conduct maintenance and routine inspections of tanks as per class and state requirements. Its not a case of as fast as you can pump it in, they can pump it out.
An FPSO the size of the AM which will be handling 30,000bbls - 40,000bbls a day will need a loading /discharging cycle of around 10-12days between fully discharged and ready to discharge again.
Its a fine juggling act as it takes around 7days to prep, inspect and reinstate a cargo tank after inspection and there will be one carfo tank at least out for inspection during every month
Then you also need one tank empty and with enough ullage space to continue loading into during the discharge to the offloading tanker as you cant just load into the same tanks you are discharging as you need to be able to test the oil is up to spec and then you need to know how much oil was in the space and what was left after discharge to calculate accurate turnoaround figures.
Its not simply a case of putting a meter on the discharge hose and let it tick away like at the petrol pumps as there are huge discrepancies between meters, no matter the calibration. Tanks on both the FPSO are manually checked before and after discharge and again by the offloading tanker and the reception refinery.
They are physically checked as its the most accurate way to determine volumes shipped/received etc
No-one wants to purchase a 600,000bbl parcel of Lancaster crude, to then receive 10%more or less than agreed. As Hurricane will be hit with massive demurrage charges if we dont give them the expected quantity and on the flipside we would only get paid for what was agreed.
Give them more than 600,000bbls? Tough. You shoulder it unless agreed earlier.
All this takes time
So what bottlenecks they are hoping to unclog on the AM im at a loss as to decide what and where.
You could double the size of the risers and pipework but it doesnt translate into twice as quick turnaround and throughput of oil as it simply doesnt work that way.
There are some restrictions in place that cannot be engineered out