Novel oil sand screen

The utility model discloses a novel oil sand screen, it includes outer tube and center tube, the center tube be located inside the outer tube, center tube and outer tube between from interior to exterior be equipped with filter membrane, internal rotation pipe, silicon nitride filter layer, outer swinging head and quartzy filter layer in proper order, internal rotation pipe and outer swinging head on one side of be connected to inside the gearbox, the labor and the material resources are saved, the gearbox and dive the hydroelectric machine outside in the pit and be equipped with the guard box, the external down -hole cable of hydroelectric machine that dives in the pit, the oil sand screen lie in set intraduct, this sand screen can effectively prevent the gap of filter sand in -process filter sand tubular column or the emergence of the circumstances that thin formation sands stops up that the hole was got into the pit shaft, has improved the life of sand screen, has still improved simultaneously the work eff