Production logging underground test blanking plug

The utility model relates to the technical field of oil and natural gas extraction, in particular to a production logging underground test blanking plug which comprises a bottom cover, one end of the bottom cover is connected with an outer sealing cylinder in a sealing mode, the other end of the outer sealing cylinder is connected with a pawl mandrel in a sealing mode, and the other end of the pawl mandrel is connected with a sealing portion in a sealing mode. Sealing connecting assemblies are arranged among the multiple sealing cylinders, and the sealing part is connected with the pawl mandrel in a sealed mode through the sealing connecting assemblies. According to the production logging underground test blanking plug, the sealing bolt is screwed, the movable rod is driven to rotate around the middle of the movable rod through the connecting rod, the butt joint block and the annular butt joint groove are in butt joint, assembling is achieved, pressure is applied to the inner wall of the sealing cylinder, the