1. Crude oil is a light oil and is volatile. That's what makes it evaporate very fast.
2. They measure it's Reserve-to-production ration or R/P.
you may want to check ur tutorials again
Answer:
The rate of evaporation of crude oil is reflected by volatile property of the crude oil.The rate of evaporation of the crude oil is dependent upon density of the crude oil,low density oil are more volatile and it can evaporate 75% faster than the high density of crude oils.
The reserve to production ratio is the amount of non-renewable resources available after evaporation, in a particular time. It is particularly applied to crude oils particularly petroleum. The engineers are concerned about the rate of evaporation of crude oil reserves, they measure its reserve to production ratio.
