New type blowout preventer box

The utility model relates to a blowout preventer box, which can be used for the formation test of a high pressure water injection well and a high-pressure oil gas well. The utility model is mainly composed of a low pressure sealing area and a high pressure sealing area. Testing steel wires can be effectively oiled in the low pressure sealing area through a yellow oil chamber which is formed by a press cover and a tapered sealing ring, the corrosion of steel wires by underground corrosive medium can be reduced, oil gas from the high pressure sealing area can be safely discharged by a low pressure sealing chamber through a flow guiding pipe, pollution can be reduced, and the harm of operators can be reduced. The utility model has the advantages of simple structure, convenient use and convenient manufacture. The popularization and the use of the utility model are favorable for an oil gas test.