Screw guide shoe

The utility model relates to a screw guide shoe, including the stator shell, the inside stator that is provided with of stator shell, the inside screw rotor that is provided with of stator, the screwrotor surface is provided with screw groove, the screw rotor lower part is provided with the guide shoe, guide shoe fixed surface is provided with carbide, the guide shoe lower part is provided with slurry outlet, slurry outlet with the screw groove intercommunication. The utility model discloses can guide the sleeve pipe to hinder, sink well sections such as sand smoothly through the chance, improve the case success rate, reduce various risks. 本实用新型涉及种螺杆式引鞋，包括定子外壳，所述定子外壳内部设置有定子，定子内部设置有螺杆转子，所述螺杆转子表面设置有螺杆槽，所述螺杆转子下部设置有引鞋，所述引鞋表面固定设置有硬质合金，所述引鞋下部设置有泥浆出口，所述泥浆出口与所述螺杆槽连通。本实用新型可以引导套管顺利通过遇阻、沉沙等井段，提高下套管成功率，减少各种风险。