Multi-Occupancy Building Cured In Place Lining (Nu Flow)

Completed

Fossil Fuels: Oil Gas and Coal(Oil and Gas, Refining, transport and storage of oil and gas)

Applied Research and Development

PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials)
ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering)

Not Cross-cutting

Project Contact
Cadent Gas

Network Innovation Allowance

Ofgem

01 February 2015

01 October 2015

8 months

£95,480

Technical Consultancy

London

Network Innovation Allowance

Project Contact, Cadent Gas

Project Contact, Northern Gas Networks
Project Contact, Nu Flow Technologies UK Ltd
Project Contact, Wales and West Utilities

The objectives are to determine whether candidate lining systems can successfully line metallic small diameter risers and also have the ability to prevent leakage from slackened off jointsThe project will have to: Establish the degree to which the coating covers the complete inner surfaces of the rig pipeworkAssess the bonding strength of the coating, including after a number of different types of physical stress testAssess the integrity of the coating after some basic extreme temperature testingEnable basic screening, ranking and provision of ‘Go / No Go’ recommendations for future testing of candidate systemsHighlight further product development needsProvide learning that will inform the work to define appropriate standards and policy Establishing the lists of physical test criteria, to allow the performance comparison of the coating in relation to other systemsThe ability for the coating system to be applied to the mock riser rigs in a single working day

There are a number of multiple occupancy buildings across the country with internal gas risers. These risers, usually constructed of steel or copper, are coming to the end of their expected operational life, and to replace these using existing construction methods will be expensive, disruptive and time consuming. An alternative method to replace these systems is required. The proposed solution investigates the possibility of utilising a liner system that was developed in the water industry to line lead water pipes. It is believed this technology can be transferred to the UK Gas market to enable the remote lining of the internal pipe wall in multiple occupancy building risers. The method would involve a small excavation being carried out at the base of the riser upright. Once the pipeline has been separated, a calculated measure of grit (dependant on length and diameter), is blown through the pipeline in order to clean the internal pipe wall. This would quickly be followed by warm air to ensure the epoxy liner securely bonds to the internal pipe wall. The epoxy liner would then be blown through the pipeline using forced air up through the riser into the customer’s property. Any overspray from the liner material would be collected in a pre-designed collection devices so not causing unnecessary mess to the customers property.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above

14/09/18