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The influence of structural characteristics on fatigue of oil drill pipe joints

release time：2024-11-19

source： network

The structural characteristics also have a significant impact on the fatigue characteristics of oil drill pipe joints:
1. Stress concentration: The cross-sectional form of the drill pipe joint varies greatly, such as the rounded corner at the junction of the thickened transition zone and the pipe body being too small, which can cause stress concentration. Stress concentration can weaken the load-bearing capacity of drill pipe joints and accelerate the process of fatigue failure.
2. Threaded structure: Drill pipe joints are connected by threads, and parameters such as thread profile angle, pitch, and tooth height have a significant impact on fatigue life. Unreasonable thread structure can lead to uneven stress distribution and increase the risk of fatigue failure.

The influence of material properties on fatigue of oil drill pipe joints

The influence of working environment on fatigue of oil drill pipe joints

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The influence of material properties on fatigue of oil drill pipe joints

The influence of working environment on fatigue of oil drill pipe joints

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