Horizontal well underground physical simulation test device

The utility model belongs to a horizontal well underground physical simulation test device, and provides a physical simulation test device which can carry out horizontal well horizontal section production dynamic simulation, late-stage development and production increase technology research and commonly used chemical additive product performance evaluation in the oil industry. The simulation test device comprises a casing, wherein pressure measuring points and feed liquid valves are arranged on the casing; a liquid flow steering tube and a simulation pitshaft are fixed in the casing, and the liquid flow steering tube is positioned in the simulation pitshaft; and a simulation formation is arranged between the simulation pitshaft and the casing. The simulation formation with selected packing material for preparation according to the requirement of an experimental purpose layer is filled between the simulation pitshaft and the casing. According to the utility model, different simulation formations can be made to realize experimental research of different experimental purpose layers, and the horizontal well underground physical simulation test device can carry out research on horizontal well water plugging, profile control, plugging removal and the like, provides a means for desk research of horizontal well production dynamic research and development and production increase implementation effect evaluation, provides a scientific basis for efficient development of horizontal wells, and can be used for guiding production.