Skidded moving type carbon dioxide oil displacing production gas recovery system

The invention discloses a skidded moving type carbon dioxide oil displacing production gas recovery system, which mainly consists of a carbon dioxide compression unit, a drying unit, a carbon dioxidecondensing liquidation unit, a stripping unit, a refrigeration unit and a tail gas liquidation separation unit. The units are sequentially connected to form a main material pipeline loop, an auxiliarymaterial pipeline loop and a dichlorodifluoromethane pipeline loop. The cold and hot flow energy among the three loop pipelines is reasonably exchanged; the raw material gas to be cooled is used as astripping tower heat source; the self body is cooled; the discharged tail gas is used for cooling raw material gas; the cold quantity is sufficiently utilized. Two kinds of coolants and the two kindsof work conditions including the standard work condition and the ultra-low-temperature work condition are reasonably used to achieve the complementary effects; the product quality is improved; the carbon dioxide and methane are