This dataset represents the extraction of petroleum and natural gas from oil fields. This process includes oil recovery operations and surface processing operations. The oil recovery processes involve lifting oil and gas via pumping units, bringing petroleum and natural gas from underground to the surface. Surface processing mainly includes three-phase separation of oil, gas, and water, and the transportation of oil and gas.

petroleum is a fossil fuel, with a net calorific value of 43.4 MJ/kg. The density of petroleum varies depending on the property of the oilfield, generally ranging from 0.75 to 0.95 g/cm3. petroleum is primarily produced through underground extraction. It mainly serves as the raw material for oil refineries for the production of various fuels and petrochemical products.