Study of Erosion Behavior of Shale-Gas Gathering Pipeline Elbow Based on Fluid–Solid Coupling
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 16, Issue 1
Abstract
The erosion of elbows in shale gas-gathering pipelines is influenced by both internal tensile stress and solid particle erosion. However, scholarly attention to the occurrence of elbow erosion in such pipelines under stress is lacking. To address this gap, this study establishes a numerical model accounting for the two-way coupling between elbows and natural gas under internal pressure while also considering particle erosion under stress. Numerical simulations were conducted to analyze the erosion behavior of elbows under varying gathering pressures, gas flow rates, and particle sizes. The results indicate that the location of maximum stress coincides with the position of the highest erosion rate, suggesting that stress concentration renders the material highly susceptible to erosion. Additionally, an increase in collector pressure exacerbates the impact of stress on the erosion process. Gray-scale correlation analysis subsequently identifies the priority order of factors influencing the maximum erosion rate in the elbow as follows: collector pressure has the highest influence, followed by gas flow rate, and then particle size.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
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© 2024 American Society of Civil Engineers.
History
Received: Feb 4, 2024
Accepted: Jun 20, 2024
Published online: Sep 28, 2024
Published in print: Feb 1, 2025
Discussion open until: Feb 28, 2025
ASCE Technical Topics:
- Continuum mechanics
- Coupling
- Energy engineering
- Energy infrastructure
- Engineering fundamentals
- Engineering mechanics
- Erosion
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Gas flow
- Gas pipelines
- Geology
- Geomechanics
- Geotechnical engineering
- Hydraulic engineering
- Hydrologic engineering
- Infrastructure
- Lifeline systems
- Models (by type)
- Numerical models
- Pipeline systems
- Pipelines
- Piping erosion
- Soil mechanics
- Structural engineering
- Structural members
- Structural systems
- Water and water resources
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