The invention relates to an oil-gas field oil-containing
sludge treatment method. According to the method, the used oil-containing
sludge treatment apparatus comprises a
microwave reaction chamber, awaveguide
pipe, a
microwave generator and a power source; the stable emulsifying state of oil-containing
pollution is destroyed by using a
microwave catalytic oxidation method, and part of residual
chemical agents in the oil-containing
sludge can be subjected to a
chemical reaction, such that demulsification and
viscosity breaking are achieved, and the three-phase separation of oil, water and mudsand is achieved; the pollutants in the oil-containing sludge are mainly transferred into a water phase, the water is discharged into a
sewage treatment system so as to be treated, and the
crude oil is recycled; and the mud sand phase has extremely low
oil content and extremely low content of other pollutants, can be used for paving various internal roads for
oil field production, well sites and
solid waste yards, and can be used as natural pit
filling materials. According to the present invention, the method has advantages of simple treatment process, low treatment cost, safety, environmentalprotection, high
recovery rate of
crude oil,
resource utilization of mud sand, and the like.