Oil tank leaked oil recovery system for oil and gas storage and transportation

The oil tank leaked oil recovery system comprises a base, a collecting groove is formed in the base, a first filter screen is installed at the position of a groove opening of the collecting groove, fixing plates are fixedly installed on the two sides of the base, placing grooves are formed in the fixing plates, the inner bottoms of the placing grooves communicate with the collecting groove, and the collecting groove communicates with the first filter screen. A containing groove is formed in the rear end of the base, a first collecting bag capable of being unfolded is installed in the containing groove, a containing box is fixedly connected to the rear end of the base, a second collecting bag capable of being unfolded is placed in the containing box, a magnetic ring capable of being magnetically attracted into the containing box is installed at a bag opening of the second collecting bag, and the bag opening of the second collecting bag is further filled with an oil absorption pad. The tail end of the second co