A Study on the Influential Factors of Stress Corrosion Cracking in C110 Casing Pipe

In this paper, we analyze the potential factors affecting the hydrogen sulfide type of stress corrosion cracking in C110 casing pipes. In order to further study these cracking factors, the methods of material property testing, scanning electron microscopy, XRD, TEM, and 3D ultra-depth-of-field were...

Full description

Saved in:
Bibliographic Details
Published in:Materials 2022-01, Vol.15 (3), p.801
Main Authors: Wang, Zhe, Wang, Pingquan, Zeng, Dezhi, Shi, Taihe, Deng, Wenliang
Format: Article
Language:English
Subjects:
Casing
Chemical composition
Corrosion
Corrosion potential
Depth of field
Experiments
Hydrogen sulfide
Laboratories
Material properties
Mechanical properties
Microstructure
Morphology
Nonmetallic inclusions
Pipes
Pitting (corrosion)
Precipitates
Steel
Stress corrosion cracking
Working conditions
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we analyze the potential factors affecting the hydrogen sulfide type of stress corrosion cracking in C110 casing pipes. In order to further study these cracking factors, the methods of material property testing, scanning electron microscopy, XRD, TEM, and 3D ultra-depth-of-field were applied in the experiments. Besides that, an HTHP autoclave was independently designed by the laboratory to simulate the actual corrosion environment, and the potential factors affecting the stress corrosion cracking of C110 casing pipes were determined. The test results showed that the chemical composition, metallographic structure, hardness, and non-metallic inclusions of the two types of C110 casing pipes were all qualified. In fact, there remains a risk of stress corrosion cracking when the two kinds of C110 casing pipes serve under long-term field-working conditions. It is considered in this paper that the precipitates on the material surface, stress damage, and pitting corrosion are all critical factors affecting the stress corrosion cracking of casing pipes.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15030801