Volume 34 Issue 6
Dec.  2006
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Abstract
SONG Sheng-yin, WANG Ying-jie, LIN Yuan-hua, ZHANG De-ping. Fatigue life estimate for coiled tubing[J]. COAL GEOLOGY & EXPLORATION, 2006, 34(6): 73-76.
Citation: SONG Sheng-yin, WANG Ying-jie, LIN Yuan-hua, ZHANG De-ping. Fatigue life estimate for coiled tubing[J]. COAL GEOLOGY & EXPLORATION, 2006, 34(6): 73-76.
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Fatigue life estimate for coiled tubing

  • 1. China Petroleum University, Beijing 102249, China;

  • 2. Tubular Goods Research Center, CNPC, Xi'an 710065, China;

  • 3. Fiber Teaching & Research Group, Xi'an Communication College, Xi'an 710106, China;

  • 4. South-Western Petroleum University, Chengdu 610500, China

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  • Received Date: May 18, 2006
  • Available Online: March 14, 2023
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    • Abstract
  • On the basis of analyzing the bending tensile stress,radial stress,circumferential stress and equivalent stress of coiled tubing(CT),the predicting model for fatigue life of coiled tubing was established;Then based on the predicted calculation,through analyzing the influence of many factors,such as internal liquid stress of CT,outer diameter,wall thickness,diameter of rolled canister and tensile strength on the fatigue life of CT,this paper put forward the practical methods improving the service life of CT.
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