The utility model discloses a pressure driven is from dummy piston pump drain in pulsation, it includes ground composite set and tubular column composite set in the pit, and ground composite set is including pulsation opposition duplex piston pump, production tree, well head play liquid control valve and metering device, and tubular column composite set includes screen pipe, packer and balanced type piston pump in the pit. The utility model discloses well balanced type piston pump flowing back power resources make the formation testing test and realize quick flowing back in succession after product and oil -water well acidizing fracturing are asked in induced flow in the fluctuation pressure through the conduction of oil jacket annular space, avoid the stratum to hurt, and are effectual and efficient.