How is oil mined?

Petroleum exploitation is a systematic project, which needs the combination of multi-discipline, multi-specialty and multi-field. The general steps are as follows: 1. Geologists conduct three-dimensional seismic survey on the basis of analyzing local sedimentary conditions, aiming at finding trap structures that may generate oil. 2. According to the results of three-dimensional seismic analysis and sedimentary theory analysis, it is considered that there may be oil and gas trap structures underground, and we will go to the drilling rig to explore the well. 3. If oil and gas are found during well drilling, expand the scope of well drilling and find the flow direction of industrial oil and gas. 4. After the industrial oil flow was discovered, a large number of production wells were drilled. 5. After the production well is drilled, Youjian Company will build ground pipelines and oil and gas treatment stations (commonly called joint stations). 6. The pumping unit is installed in the oil production plant, and the metering station is built. The downhole operation company operates the oil well and then produces oil.

The produced oil has to undergo "three-off" treatment, that is, dehydration, degassing and desulfurization. The treated pure oil is transported to the refinery for smelting to produce various refined oils. Natural gas is sold directly as fuel.