Thematic Areas

Energy security

Georgia’s aging pipelines to be assessed

2015-11-12 - Tbilisi, Georgia

Rehabilitation and modernisation are two key activities for the gas transportation network in Georgia. Built during the 1960-80s, the gas pipelines are now threatened with serious corrosion. Inspection is urgent, both through periodical assessment and by correcting identified weaknesses to ensure their efficiency and public safety.

Assessing Georgia’s unpiggable pipelines – pipelines that must be assessed externally – must use the External Corrosion Direct Assessment (ECDA) method, an internationally recognised method for evaluating the seriousness and extent of external corrosion for unpiggable pipelines. ECDA proactively contains corrosion defects by identifying and addressing the corrosion activity; repairing the corroded defects and repairing the causes of corrosion.

A pilot area of Georgia’s gas pipeline which wil be used for an ECDA survey which will demonstrate the purpose, abilities and techniques of ECDA and its tangible results. Existing technical characteristics of the system, route maps and topography will be used to create a pipeline profile identifying high and low points, locations of crossings and significant features of the locality. Current local practices will also be determined and the technology used. At the same time, the methods and technology used internationally will be reviewed, with special emphasis on ECDA. Importantly, this pilot study will also provide training to personnel of the Georgian Oil and Gas Corporation (GOGC).

This project will contribute to the efforts of the GOGC in effectively inspecting and assessing old parts of Georgia’s transmission gas network (unpiggable pipelines) in order to secure its soundness and effectiveness.