The Strength Analysis and Structure Optimization of Packer Slip Based on ANSYS
Packer is one of the main down-hole mining tools in oil field. When setting the packer prone to fracture under tremendous pressure, directly affect the sealing performance of the packer, which affects the process of mining and safety in production wells. The slip was analysised by using the finite element analysis software ANSYS Workbench. When the applied load is 140kN, the slips maximum stress is 230.11MPa, which exceeding the maximum compressive strength of this material. In the fracturing test of the slip packer test model, the test pressure is 186.33kN when slip fracturing, the compressive strength is measured 233Mpa. To optimize the structure of slip, the spacing size of slip tooth were 15 mm, 25 mm and 30 mm. According to the results of finite element analysis, when the spacing size of slip tooth is 30 mm, the distribution of the slip tooths stress and strain tends to uniform. The maximum load is 240kN. This slip structure size is reasonable, and it provides a reference for the optimization design of slip.