51315-6022-Proposed External Corrosion DIrect Assessment Methodology Modification Based on a Case of Study of 110Km Buried Pipeline

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This is the final series of steps for the development of external corrosion direct assessment modification set by NACE 502 SP 2008 document. This work aims to provide the modified methodology based on a case study of a buried pipeline that is 110 km (68.35 miles) in length and 457.2 mm (18in) in diameter.

Product Number: 51315-6022-SG

ISBN: 6022 2015 CP

Author: Homero Castaneda Lopez

Publication Date: 2015

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This is the final series of steps for the development of external corrosion direct assessment modification set by NACE 502 SP 2008 document. The standard includes four steps; we proposed in this modification the first step to include the integration of dynamic behavior of macro-parameters such as rainfall water accumulation and drainage chemistry of the soil and soil corrosiveness affecting the integrity of the metallic structure. These macro parameters will dictate the most suitable indirect measurementcharacterizing corrosion and damage evolution. Real time macro-modeling in combination with indirect and in line inspection were used to build probability and statistical models andlocate the highest risk areas based on corrosion phenomenon. This work aims to provide the modified methodology based on a case study of a buried pipeline that is 110 km (68.35 miles) in length and 457.2 mm (18in) in diameter and the advantages of adding more analysis in the current available standard practice.

Keywords: conference papers, 2015 conference papers, downloadable, EIS, CO2, intermediate reactions