Analysis of internal corrosion causes and protective measures of forged elbows in gas gathering station

Bo Liu; Wei Xu; Liqiu Chen; Feng Wang

doi:10.1117/12.3007246

25 October 2023 Analysis of internal corrosion causes and protective measures of forged elbows in gas gathering station

Bo Liu, Wei Xu, Liqiu Chen, Feng Wang

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 1280119 (2023) https://doi.org/10.1117/12.3007246
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

As natural gas mining conditions become more demanding, the concentration of corrosive media in the extracts continues to increase, causing the corrosion of pipelines and other equipment to become increasingly prominent, bringing great safety hazards to equipment and personnel used in gas gathering stations. Therefore, carrying out the cause analysis of elbow defects and studying the law of damage development have important research value and engineering significance for ensuring the safety of gas gathering stations. This paper takes the forged elbow of natural gas gathering station as the research object, and carries out the research on the internal corrosion mechanism of the elbow from two aspects of medium corrosivity and multiphase flow corrosion. The effects of CO₂, H₂S, and Cl- on the electrochemical corrosion of elbows are respectively revealed, the distribution law of medium velocity, water phase and wall shear force in the elbow is analyzed emphatically by computational fluid dynamics (CFD), and furthermore, the distribution of serious corrosion area in the elbow is discussed. In addition, the corresponding corrosion protection measures are proposed from four aspects of material selection, process structure optimization design, medium composition analysis, and regular inspection and testing.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bo Liu, Wei Xu, Liqiu Chen, and Feng Wang "Analysis of internal corrosion causes and protective measures of forged elbows in gas gathering station", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 1280119 (25 October 2023); https://doi.org/10.1117/12.3007246

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Corrosion

Pipes

Metals

Carbon monoxide

Chlorine

Design and modelling

Iron

Show All Keywords

Keywords/Phrases

Search In:

Publication Years