Abstract: Since the trial production of an oilfield in the South China Sea was put into operation,with the development of new oil wells,the fluid production of the oilfield has gradually increased,resulting in the bottleneck problem of the offshore pipeline export volume of the oilfield,and the pressure of the downstream central platform to treat the production water has gradually increased,so it is necessary to put production water treatment system into operation in time. Combined with the design treatment capacity and operation parameters of the equipment at all levels of the production water treatment system,single commissioning and joint commissioning are carried out until the production water treatment system operates stably for 72 consecutive hours,which provides a reliable guarantee for safe operation.

Key words: production water treatment system, equipment, commissioning, putting into operation