
Difference between oil and gas fields?
Hey to all experts out there!
I always read about either a gas field or oil field being discovered and I was wandering why this differentiation occurs. Is it always so that when gas is formed in a reservoir no oil remains... (I know oil forms before gas, right?). But are there actually fields that have both gas and oil in them? And how does this differentiation actually occur? When do we find gas and when do we fid oil? Is this related to temperature on the most part?
Hope to hear from you and thank you very mich!!