The oil is hidden in a layered structure deep in the earth's crust. It is usually crude or unprocessed and mixed with impurities. Therefore, the filtration process is the basic premise of the petroleum industry. Petrochemical lubricants, fuel additives filtration, oil recovery to enhance oil recovery, glue solution filtration, glycol liquid filtration, glycol liquid filtration, gas purification process, distillation and cracking process, amine cleaning agent, marine filtration station (off Shore filter station), oil drilling and injection fluid, drilling oil and injection fluid. The scope of filtration required by the petroleum industry is mainly the removal of moisture, free carbon, acid value, colloids in the oil, the filtration of fuel additives, the filtration of impurities entrained in the raw gas, the removal of rust and pipeline fallout, the filtration of impurities in the supply water, and the removal of activated carbon powder. filter. The existence of oil is vital to the survival and maintenance of industrial civilization, so it is very important to refine, clean and disinfect it through proper filtration processes.