Pecten15 Sep 2018 23:43
I only worked on gas fields, that produced gas condensate as well (wet gas as FRR call it)
But I guess they behave the same way as oil fields. so here goes. Crude oil contains lots and lots of different hydrocarbon chains. Gas can be entrained in it too, as we see there is a lot of entrained gas in zone 19. Think of oa bottle of fizzy pop. You can't see the gas in the liquid until yo utake the top off and reduce the pressure inside the bottle. As soon as you open the bottle, CO2 gas bubbles start to form and some of this gas is liberated out of the top of the bottle. The remaining CO2 in your pop remains unseen, but its still there. You drink it and result is, you end up burping, cos you are full of gas. lol
Crude oil contains all the different oils we need in life and industry. Petrol, paraffin, diesel, naptha, lubricating oil, heavy oils, natural gas etc and all these different hydrocarbons are produced from crude at the refinery.
Zone 19 contains oil with a lot of entrained gas, as opposed to zones 14 and 15. When you take the top off zone 14 and 15, the bottle can soon become flat (unless other geolicial forces act on the rocks), whereas zone 19 has a lot of high pressure gas to keep the oil flowing.
Not sure if this makes any sense at this time of night lol.