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08138 Water Accumulation Assessment in Wet Gas Pipelines

Picture for 08138 Water Accumulation Assessment in Wet Gas Pipelines
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Product Number: 51300-08138-SG
ISBN: 08138 2008 CP
Author: R. Hauguel, A. Lajoie, F. Carimalo, X. Campaignolle, T. Chretien, and M. Meyer
Publication Date: 2008
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$20.00
$20.00
On underground aquifer gas storages, wet gas and liquid water are both carried away by gathering lines from wellheads to gas treatment stations. Internal corrosion of these lines due to liquid water is the main time related damaging process. For the sake of the development of corrosion integrity management plans, it is essential to identify the most likely locations of internal corrosion. Water accumulation is one of the most influential factors in assessing the corrosion threat along a pipeline. The Dry Gas Internal Corrosion Direct Assessment methodology NACE Recommendation, proposes a simplified flow model to predict the critical angle at which water accumulates. However, because of its assumptions the applicability of this model is theoretically limited to the dry-gas lines. The goal of this paper is to estimate the operating conditions where gas flow can carry away liquid water accumulated at low spots. In order to evaluate the draining gas flow rate in a pipe, calculations of multi-phase flow were performed for different pipelines angles. Subsequently, new calculation rules were proposed for wet gas lines and integrated in a new tool to easily estimate this draining flow rate as a function of operating conditions.
On underground aquifer gas storages, wet gas and liquid water are both carried away by gathering lines from wellheads to gas treatment stations. Internal corrosion of these lines due to liquid water is the main time related damaging process. For the sake of the development of corrosion integrity management plans, it is essential to identify the most likely locations of internal corrosion. Water accumulation is one of the most influential factors in assessing the corrosion threat along a pipeline. The Dry Gas Internal Corrosion Direct Assessment methodology NACE Recommendation, proposes a simplified flow model to predict the critical angle at which water accumulates. However, because of its assumptions the applicability of this model is theoretically limited to the dry-gas lines. The goal of this paper is to estimate the operating conditions where gas flow can carry away liquid water accumulated at low spots. In order to evaluate the draining gas flow rate in a pipe, calculations of multi-phase flow were performed for different pipelines angles. Subsequently, new calculation rules were proposed for wet gas lines and integrated in a new tool to easily estimate this draining flow rate as a function of operating conditions.
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Picture for Internal Corrosion Direct Assessment of a Wet Gas Pipeline
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51318-11630-Internal Corrosion Direct Assessment of a Wet Gas Pipeline

Product Number: 51318-11630-SG
Author: Xihua S. He / Debashis Basu / and Osvaldo Pensado / Jianyun Mei / Bibo Zhang / Hongbo Wu / Yongzhao Fan / Deqiang Cai / Yang Li
Publication Date: 2018
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This work applied the Wet Gas-Internal Corrosion Direct Assessment (WG-ICDA) standard to assess the severity of internal corrosion of 2 segments along a pipeline used to transport wet gas from a gas mine.
Picture for 08131 Facilitating Internal Corrosion Direct Assessment using Advanced Flow and Corrosion Prediction
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08131 Facilitating Internal Corrosion Direct Assessment using Advanced Flow and Corrosion Prediction Models

Product Number: 51300-08131-SG
ISBN: 08131 2008 CP
Author: Vishal Lagad, Sridhar Srinivasan, and Russell D. Kane
Publication Date: 2008
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Picture for Advanced Internal Corrosion – Direct Assessment Methology for Wet Gas/Dry Gas Pipelines
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51314-4276-Advanced Internal Corrosion – Direct Assessment Methology for Wet Gas/Dry Gas Pipelines

Product Number: 51314-4276-SG
ISBN: 4276 2014 CP
Author: Jeremy Ryder
Publication Date: 2014
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