In order to study the connection performance and sealing performance of HST special thread casing joints under tight working conditions and tensile conditions,Abaqus finite element software is used to analyze the stress and contact pressure of the joint torque shoulder,sealing surface and thread teeth under two working conditions by changing the interference amount of the sealing surface of the pipe body and the coupling and the force of the pipe body.Through analysis,it is obtained that the maximal interference of the sealing surface of the pipe body under the tight working condition is 0.09 mm,and the joint connection performance and sealing performance are weakened under the tensile condition.The research provides theoretical guidance for the practical application of HST special thread oil casing.
关键词
HST/特殊螺纹油套管/力学性能/密封性能/有限元分析
Key words
HST/special thread oil casing/mechanical property/sealing performance/finite element analysis
维普
万方数据