文献类型：期刊文献

英文题名：Force analysis and tightening optimization of gas sealing drill pipe joints

作者：Zhuang Yong[1];Gao Lian-Xin[1];Yuan Peng-Bin[2]

机构：[1]E China Univ Sci & Technol, Coll Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Shanghai Hilong Petr Tubular Goods Res Inst, Shanghai 200949, Peoples R China

年份：2015

卷号：58

起止页码：173

外文期刊名：ENGINEERING FAILURE ANALYSIS

收录：;EI(收录号：20153901301841);WOS:【SCI-EXPANDED(收录号:WOS:000364916800014)】；

基金：The authors would like to thank Shanghai Hilong Petroleum Tubular Goods Research Institute for the support of experiment specimens and equipment for this research.

语种：英文

外文关键词：Tool joint; Gas sealing; Tightening turns; Full scale test

摘要：In this article threaded tool joints of gas sealing drill pipes, which are exposed to different tightening turns and tension load, are analyzed using an elaborate finite element modeling through the use of MSC.Marc13.0. The corresponding mechanics model is also established and the reliability of the model is verified by finite element simulation and full scale test. Some conclusive results have been drawn from the analysis including that the force distribution of the gas sealing joints is quite different from the API standard one, and the metal seal structure can greatly improve the seal performance of the joint under tension load. Research also shows that reasonable tightening turns can effectively reduce the thread axial load growth amplitude under the tensile load as a result improving the fatigue life of the tool joints. (C) 2015 Elsevier Ltd. All rights reserved.