Analysis of Sealing Ability of Premium Tubing Connection under Axial Alternating Tension Load

Abstract:

In order to know the sealing ability under axial alternating tension load, a 88.9mm×6.45mm P110 premium tubing connection is established with multiple linear elastic plastic finite element model, stress and contact pressure on sealing surface and torque shoulder are analyzed under axial alternating tension load and 80 MPa inner pressure. The results show that tubing connection slide by the axial tension, while the maximum contact pressure on seal surface reduced. With the increasing of alternating cycle, the maximum equivalent stress on seal surface increased and the maximum contact pressure on seal surface decreased. And, under limited loads, contact pressure on torque shoulder is affected little caused by alternating load.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 3569-3572
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.3569
• Online since: January 2013
• Authors: Yi Hua Dou, Xing Wang, Yang Yu, Xiang Tong Yang
• Keywords: Alternating Tension Load, Premium Connection, Sealing Ability, Tubing

References

[1] Xuming Cui, Fujun He and Min Luo. Acta Petrolei sinica Vol. 24-1(2003), p.108.

[2] Yihua Dou and Fuxiang Zhang. Exploration Technology Vol. 30-5(2007), p.17.

[3] YihuaDou, Airong Xu and Guozheng Zhang. Journal of Petroleum Machinery Vol. 21 -1(2007), p.13.

[4] Yong Li, Ruiquan Liao and Manlai Zhang. Journal of Petroleum Machinery Vol. 39-4(2011), p.35.

[5] Yinping Cao, Fuxiang Zhang and Xiangtong Yang: Manufacturing Automation Vol. 34-7(2012), p.87.