A. emulsion of oil and brine
B. emulsion of oil and impurities
C. emulsion of brine and impurities
D. emulsion of impurities and moisture
I got this question in unit test.
Query is from Mining of Petroleum topic in section Fuel Technologies of Applied Chemistry
The best I can explain: The crude oil is obtained from the earth’s crust which will be in the form of emulsion of oil and brine. It is very stable. When this emulsion is charged then water gets separated from the oil.