How crude oil is produced?
Crude is found in a wide variety of locations and formats, including semi-solids, liquids (conventional oils), mixed formats (sand oils) and heavy oils in areas of Canada and Venezuela. All crude oil must be refined before it can be converted into production quality fuel for nearly any purpose, and the various types of petroleum have different levels of difficulty with respect to refining. Heavy oils can be expensive to extract and refine, resulting in a longer and more complicated process. During processing, crude oil is separated by distillation, which separates the various components according to the boiling point (viscosity) of the oil, which allows for easy recombi ...more