It is extremely difficult to separate and treat oily sludge in the existing technology. Oily sludge is mainly produced during the process of petroleum development, collection and transportation, and petroleum refining. Generally, the oil content in sludge is between 10% and 50%, and the water content is between 40% and 90%. The physical and chemical properties are very complex and generally contain a large amount of aging crude oil, residual oil, waxes, asphaltenes, colloids and solid suspended solids, bacteria, parasites, salts, acid gases, corrosion products and a small amount of mechanical impurities, copper, zinc, chromium, mercury and other heavy metal salts, etc., as well as malodorous toxic "triple" substances such as benzene series, phenols, anthracene, pyrene, as well as coagulants, corrosion inhibitors, scale inhibitors, bactericides and other water treatment agents added during the production process. Extremely difficult to separate and handle. It is difficult to meet emission standards for disposal using currently commonly used technologies such as centrifugation and sedimentation. If incineration, landfill and cement kiln co-disposal are adopted, all petroleum resources will be lost, and the disposal cost will be high, and large-scale landfill will be unrealistic. The process and special equipment realize the resource utilization and reduction treatment and disposal of oily sludge. First, vacuum suction filtration method is used to initially separate the liquid phase and solid phase in the oily sludge, and the remaining solid phase is further separated by distillation method. The heat required for distillation can be obtained by burning the distillation residue. The oil recovery rate of the oily sludge recycling process can be as high as 90%, and large-scale continuous production can be realized. The integrated process can realize the effective separation of oil, water and mud in oily sludge. The recovery rate of the obtained oil is high, and the water and sludge obtained from separation can be comprehensively utilized. At the same time, the process is safe and reliable, has low energy consumption, low treatment costs, and little fixed investment. It can effectively treat toxic and harmful substances in oily sludge without secondary pollution, meets environmental protection requirements, and is easy to promote, so that on-site operation can be realized. Large-scale continuous industrial production can be realized. The project has completed pilot trials and is pending further industrial development The team has completed the pilot test of this technology and the results are satisfactory. We look forward to further carrying out follow-up project scale-up verification with partners. The technical team accepts technology transfers and can provide technical guidance to partners.