Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

11401 Likelihood Evaluation of Pipelines Corrosion in the Mexican Soil Assisted by Geographic Information Systems

Picture for 11401 Likelihood Evaluation of Pipelines Corrosion in the Mexican Soil
Available for download
Product Number: 51300-11401-SG
ISBN: 2011 11401 CP
Author: A Godoy, F Rubi, A De Leon, J Canto, L Martinez, L M Martinez, J Ascencio, L Munoz
Publication Date: 2011
$0.00
$20.00
$20.00
The new integrity management standard will be operating for main pipelines in Mexico. In order to achieve that standard, a new methodology was developed where different variables and models of Geographic Information Systems (GIS) were combined in a geodatabase capable of identifying hot spots for corrosion on pipelines. Such geodatabase, integrated into GIS with a graphical user interface, facilitates data review when performing preassessments on an External Corrosion Direct Assessment campaign.

Using multilayer systems from the Mexican Institute of Geography, factors influencing the corrosion rate of buried hydrocarbon pipelines can be visualized. Variables like soil pH, porosity, salinity, temperature, humidity, resistivity, redox potentials, and bacteria concentration can be categorized in order to estimate the likelihood of pipeline corrosion or soil corrosivity at a given area. In order to represent the physical-chemical properties of the soil, these are converted to a raster data format (data model in which geographic entities are represented by pixels arranged forming a grid, with many bands of data). This conversion discretizes continuous variables in order to render them easier to manage visually and mathematically. Data obtained from Close Inspection Survey (CIS), Direct Current Voltage Gradient (DCVG), Alternate Current Voltage Gradient (ACVG), and In-Line Inspection (ILI) studies can also be integrated to the database allowing more complete corrosion likelihood, and risk assessments.

Key words: Corrosiveness, raster image, soil properties, environmental factor, corrosion map, multi-layer, pipeline integrity, Close Inspection Survey, Direct Current Voltage Gradient, Alternate Current Voltage Gradient, In-Line Inspection
The new integrity management standard will be operating for main pipelines in Mexico. In order to achieve that standard, a new methodology was developed where different variables and models of Geographic Information Systems (GIS) were combined in a geodatabase capable of identifying hot spots for corrosion on pipelines. Such geodatabase, integrated into GIS with a graphical user interface, facilitates data review when performing preassessments on an External Corrosion Direct Assessment campaign.

Using multilayer systems from the Mexican Institute of Geography, factors influencing the corrosion rate of buried hydrocarbon pipelines can be visualized. Variables like soil pH, porosity, salinity, temperature, humidity, resistivity, redox potentials, and bacteria concentration can be categorized in order to estimate the likelihood of pipeline corrosion or soil corrosivity at a given area. In order to represent the physical-chemical properties of the soil, these are converted to a raster data format (data model in which geographic entities are represented by pixels arranged forming a grid, with many bands of data). This conversion discretizes continuous variables in order to render them easier to manage visually and mathematically. Data obtained from Close Inspection Survey (CIS), Direct Current Voltage Gradient (DCVG), Alternate Current Voltage Gradient (ACVG), and In-Line Inspection (ILI) studies can also be integrated to the database allowing more complete corrosion likelihood, and risk assessments.

Key words: Corrosiveness, raster image, soil properties, environmental factor, corrosion map, multi-layer, pipeline integrity, Close Inspection Survey, Direct Current Voltage Gradient, Alternate Current Voltage Gradient, In-Line Inspection
Product tags
Also Purchased
Picture for 06163 CATHODIC PROTECTION OF PIPELINES
Available for download

06163 CATHODIC PROTECTION OF PIPELINES IN HIGH RESISTIVITY SOILS AND THE EFFECT OF SEASONAL CHANGES

Product Number: 51300-06163-SG
ISBN: 06163 2006 CP
Author: Fraser King, Greg Van Boven, P, Nichols, Rod Reid, Kurt Lawson and Neil Thompson
Publication Date: 2006
$20.00

The effect of seasonal changes on the protection of pipelines in high-resistivity soil. The nature and magnitude of the seasonal fluctuations. Corrosion rates are low even when compliance with a given CP criterion cannot be demonstrated.
Picture for 07037 Use of CP Coupons and Soil Corrosion Probes in Application of Pipeline Cathodic Protection Cri
Available for download

07037 Use of CP Coupons and Soil Corrosion Probes in Application of Pipeline Cathodic Protection Criteria

Product Number: 51300-07037-SG
ISBN: 07037 2007 CP
Author: Naeem A. Khan
Publication Date: 2007
$20.00
Picture for 10059 Using Soil Analysis and Corrosion Rate Modeling to Support ECDA and Integrity Management
Available for download

10059 Using Soil Analysis and Corrosion Rate Modeling to Support ECDA and Integrity Management of Pipelines and Buried Plant Piping

Product Number: 51300-10059-SG
ISBN: 10059 2010 CP
Author: Stephen F. Biagiotti, Steve Biles and Craig Chaney
Publication Date: 2010
$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