Petroleum is crude oil in the form of a black viscous liquid which cannot be utilized. Then in order to be utilized, petroleum must undergo processing first. Crude oil processing is carried out by an oil refinery which goes through two stages. The first stage of processing (primary processing) is ...

Oil and gas was first discovered by the Chinese in 347 AD. Only with bamboo, they were able to drill to a depth of more than 800 feet and get oil and gas for the first time. "Not America, not Europe. But China. They are indeed a smart nation," said the man who is familiarly called Mike. ...