Thread Galling Damage Mechanism and Prevention of a Low Alloy Steel Tubing Connection

Qi Lou; Fang Po Li; Wei Du; Ming Hua Liang

doi:10.4028/www.scientific.net/MSF.1035.430

Paper Titles

Microstructure Evolution and Mechanical Properties of 67GPa•% Grade Medium Manganese Steel
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Spinning Process of D406A Ultra-High Strength Steel
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Microstructure and Properties of Q690D High Strength Low Alloy Steel
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Microstructure and Mechanical Properties of High Strength Low Alloy Steel Q550D
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Thread Galling Damage Mechanism and Prevention of a Low Alloy Steel Tubing Connection
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Failure Analysis of Tee in Shale Gas Transportation Platform
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Integrity Analysis of Casing Premium Connection under High Compression Load
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Experimental Study of Steel Reinforcement Repair Sleeve on X80 Pipe with Interlayer Defect
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Fracture Failure Analysis of the Blowout Preventer Ram in an Oilfield
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HomeMaterials Science ForumMaterials Science Forum Vol. 1035Thread Galling Damage Mechanism and Prevention of...

Thread Galling Damage Mechanism and Prevention of a Low Alloy Steel Tubing Connection

Abstract:

The pull out and well drop accident caused by serious thread galling damage of low alloy steel tubing connections were investigated in this paper. Representative samples were selected from five failure accidents, and the test and verification program were designed. Based on the experiment and analysis it is considered that the material used for tubing and the quality of thread processing meet the requirements of the standard. The field end of tubing connection pull out may be due to the serious thread galling damage, which reduced the joint strength. Using the torque-position control method to make-up the thread connections in oil field may ensure the connection quality and the connection strength, meanwhile, and hence to avoid the occurrence of tubing pulling out effectively.

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Periodical:

Materials Science Forum (Volume 1035)

Pages:

430-435

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1035.430

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Online since:

June 2021

Authors:

Qi Lou*, Fang Po Li, Wei Du, Ming Hua Liang

Keywords:

Galling Damage, Low Alloy Steel, Make Up Position, Prevention

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* - Corresponding Author

References

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