Study on the Cone Angle of Sliding Sleeve Ball Seat in Open Hole Staged Ball Throwing Fracturing

In the ball type fracturing sliding sleeve, contact surface between socket and is most vulnerable part to failure. Once fails, sealing of sleeve will fail, fluid leak, finally fail. The condition mainly determined by cone angle socket. order improve as much possible, extend service life based on erosion finite element structural analysis, this paper has carried out analysis sleeve. Firstly, seat analyzed, rate under different angles obtained. conclusion that proportional seat. Combined with working conditions fracturing, structure out, stress are compared. Finally, combined rule force socket, optimal 20 °. When °, meets strength requirements can obtain a higher life.