Inline Inspection Services

Tender description

Gas Networks Ireland requires the provision of an In-line inspection (ILI) service using the principle of Magnetic Flux Leakage (MFL) of their gas transmission pipeline system to carry out internal inspection of selected pipelines to determine any internal or external metal loss, pipeline damage, defects, etc. It will include all activities associated with pre-inspection, inspection and post inspection. It will include all logistics, pre-cleaning activities, waste management, recording of data, analysis of data and presentation of results. The duration of the contract will be for an initial period of four years with an option to extend for three further one year periods. GNI may also require, as an option, temporary filtering services including waste management. GNI are also looking for potential applicants to propose any new techniques or technologies which they believe will: • Broaden the range of pipelines which can be inspected. • Improve measurement reliability/accuracy. • Increase the range of parameters being measured. • Improve data processing and positional accuracy. • Enhanced data analysis/interpretation. GNI currently has 41 individual pipelines. Which undergo Inline inspection on a Risk Based inspection schedule. These are located in the UK, subsea between the UK and Ireland and throughout the Republic of Ireland and Northern Ireland. GNI wish to put in place a framework which will be used to procure the specialist ILI services required to carry out these inspections.