Oil field associated gas liquefaction separation mobile vehicle group

The utility model relates to an oil field associated gas liquefaction separation mobile vehicle group, which is used for carrying out liquefaction separation on oil field associated gas subjected to dehydration and decarburization purification treatment of a purification treatment mobile vehicle group, and comprises a liquefaction separation vehicle and a refrigerant compressor vehicle, a precooling heat exchanger, a cryogenic heat exchanger, a heavy hydrocarbon separator, a refrigerant separator, a non-condensable gas separator and a heavy hydrocarbon buffer tank are mounted on the liquefaction separation vehicle; and a refrigerant compressor is mounted on the refrigerant compressor vehicle. The oilfield associated gas liquefaction separation mobile vehicle set can separate heavy components such as propane, butane and the like in oilfield associated gas to produce heavy hydrocarbon products, can separate light components such as methane and the like in the oilfield associated gas to produce liquefied natural