Horizontal well cementation displacement simulation test system

The utility model provides a horizontal well cementation displacement simulation test system. The system comprises an irregular wellbore simulation device, a power displacement device module, an innerpipe eccentricity adjusting module and a displacement efficiency measuring module. The irregular wellbore simulation device comprises a measuring section formed by combining and transforming a plurality of regular sections and a plurality of irregular sections according to actual underground conditions. The regular sections and the irregular sections are made of transparent materials. The utilitymodel provides a horizontal well cementation displacement simulation test system. Due to the fact that the regular section and the irregular section which can be combined at will are arranged to simulate the actual situation of the horizontal well, the system can not only test the influence factors of the displacement efficiency of a conventional borehole of the horizontal well, but also test theinfluence factors of the d