Oil and gas separator for electric oil submerged screw pump

The utility model relates to a special apparatus for oil mining in the petroleum industry, which is mainly designed to implement gas-oil separation and extend the operating cycle of a screw pump. The utility model mainly comprises a sieve tube, an exhaust tube, a rubber cup seal, and a gas-liquid separator. The gas-liquid separator mainly comprises a gas anchored outer tube and a gas anchored inner tube, wherein, the two ends of the gas anchored outer tube is connected and fixed with the upper joint and lower joint of a gas anchor. The main benefit of the utility model is: the utility model changes the liquid flow direction after gas liquid separation from flowing through the tube to flowing through the sieve tube outside of the tube, and thereby facilitates liquid suction into the pump intake port and improves the gas-liquid separation result and pump efficiency, extends the operating cycle of the pump, and therefore increases the benefit.