Menu
Search
Filters
Close
Menu

51313-02343-Pipeline Risk Assessment for the Purpose of ICDA in a Large Gas Gathering T&D System

Picture for Pipeline Risk Assessment for the Purpose of ICDA in a Large Gas Gathering T&D System
Available for download
Product Number: 51313-02343-SG
ISBN: 02343 2013 CP
Author: Nima Tajallipour
Publication Date: 2013
$0.00
$20.00
$20.00

In this paper a methodology to assess the risk of internal corrosion for a large gas gathering transmission and distribution piping network is proposed. Due to the high number of pipelines present in the system performing Internal Corrosion Direct Assessment (ICDA) for all the gas pipelines is appear to be unrealistic and unfeasible therefore an approach based on phase-envelope analysis for the transmitted gas is proposed to determine the water carrying capacity of the transmitted gas and also to indicate pipelines which are susceptible to water condensation and drop-out based on their operational conditions. In addition the effect of heavy hydrocarbon gas molecules (C6+) over the shape of the hydrocarbon phase envelope is investigated and the probability of forming a liquid hydrocarbon phase is evaluated.


Some of the challenges such as prediction of the hydrocarbon bubble and dew point at pressures and temperatures close to the gas mixture’s critical point are also discussed. Obtained results highlight the importance of performing reliable gas analyses at different locations in a large piping network especially at regions close to the compressors or the gas dehydration units and demonstrate the success of the proposed approach to systematically evaluate the risk of internal corrosion for a large gas transmission distribution network during different operational seasons.
 

In this paper a methodology to assess the risk of internal corrosion for a large gas gathering transmission and distribution piping network is proposed. Due to the high number of pipelines present in the system performing Internal Corrosion Direct Assessment (ICDA) for all the gas pipelines is appear to be unrealistic and unfeasible therefore an approach based on phase-envelope analysis for the transmitted gas is proposed to determine the water carrying capacity of the transmitted gas and also to indicate pipelines which are susceptible to water condensation and drop-out based on their operational conditions. In addition the effect of heavy hydrocarbon gas molecules (C6+) over the shape of the hydrocarbon phase envelope is investigated and the probability of forming a liquid hydrocarbon phase is evaluated.


Some of the challenges such as prediction of the hydrocarbon bubble and dew point at pressures and temperatures close to the gas mixture’s critical point are also discussed. Obtained results highlight the importance of performing reliable gas analyses at different locations in a large piping network especially at regions close to the compressors or the gas dehydration units and demonstrate the success of the proposed approach to systematically evaluate the risk of internal corrosion for a large gas transmission distribution network during different operational seasons.
 

Product tags
Also Purchased
Picture for MP-ICDA Analysis On Block 12 And Block 15 Gathering Pipelines On Petroamazonas EP
Available for download

51316-7089-MP-ICDA Analysis On Block 12 And Block 15 Gathering Pipelines On Petroamazonas EP

Product Number: 51316-7089-SG
ISBN: 7089 2016 CP
Author: Carlos Melo Gonzalez
Publication Date: 2016
$20.00

In 2010, mechanical integrity personnel started the application of the Direct Assessment (DA) and Inline Inspection Methodologies (ILI) to establish the integrity validation baseline assessments for a Pipeline Integrity Program (PIP) for the pipelines operated within Blocks 12 and 15 by Petroamazonas EP, in Ecuador.
Picture for 09138 Using a Common Gas Source for Defining DG-ICDA Regions: A Case Study
Available for download

09138 Using a Common Gas Source for Defining DG-ICDA Regions: A Case Study

Product Number: 51300-09138-SG
ISBN: 09138 2009 CP
Author: Jim Ponder and Adam Ray Gardner
Publication Date: 2009
$20.00
Picture for DG-ICDA: How Confident Are You in Your Inspection Locations?
Available for download

51312-01437-DG-ICDA: How Confident Are You in Your Inspection Locations?

Product Number: 51312-01437-SG
ISBN: 01437 2012 CP
Author: Lynsay Bensman
Publication Date: 2012
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support