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Projects: Projects for Investigator
Reference Number NIA_SGN0086
Title Cured In-Place Pipe (CIPP) (Stage 3)
Status Completed
Energy Categories Fossil Fuels: Oil Gas and Coal(Oil and Gas, Refining, transport and storage of oil and gas) 100%;
Research Types Applied Research and Development 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Project Contact
No email address given
Cadent Gas
Award Type Network Innovation Allowance
Funding Source Ofgem
Start Date 01 October 2015
End Date 01 April 2018
Duration 30 months
Total Grant Value £1,521,181
Industrial Sectors Technical Consultancy
Region London
Programme Network Innovation Allowance
Investigators Principal Investigator Project Contact , Cadent Gas (99.998%)
  Other Investigator Project Contact , WRc plc (0.001%)
Project Contact , SGN (0.001%)
Web Site http://www.smarternetworks.org/project/NIA_SGN0086
Objectives The objective of this work is to develop and commercialise a range of solutions for installation, maintenance and intervention operations for fully structural CIP liner systems. To do this the project will engage the supply chain in bringing forward designs and operating practice. This will ensure that at the end of the project the industry has a robust and complete CIP liner solution that is ready for implementation. The project would be considered a success if one bonded connection solution is deemed fit-for-purpose for use. Two approved solutions would provide a competitive market. Specific success criteria are: To understand and quantify the shrinkage behavior of fully structural CIP liners and so develop pressure testing procedures. To develop audited time and motion schedules for fully structural CIP liner processes. To develop a CIP liner delivery mechanism to enable the implementation of this technology upon the completion of the Stage 3 project. To demonstrate a range of fully bonded end and service connections for fully structural CIP liners up to 2 barg; and in so doing;Provide an option to widen the operating envelope of fully structural liner systems to 7 barg (intermediate) pressure. This option does not fall within the scope of this project but could be progressed separately should there be enough interest in the application.
Abstract The development of cured-in-place (CIP) liner technology for the repair and remediation of gas distribution pipelines up to 2 barg has progressed through two stages of development, initially as a GDN-sponsored IFI project, and since April 2013 as a NIA project. WRc has been the lead contractor for the project, drawing on and coordinating the support of a further 15 technology organisations spanning consultancies, test houses and the liner technology providers and installers. The project has been steered by a management group led by SGN and comprising representatives from the four network companies and WRc. Key achievements of Stages 1 and 2 are or will be: Stage 1 (December 2011 to March 2013) - development and publication to the supply chain of a performance specification and installation best practice guide for non, semi and fully structural CIP liners for deployment in GB gas distribution systems at pressures up to 2 barg (medium pressure system) and diameters up to 48 inches. Stage 2 (April 2013 to March 2016) - preliminary worldwide screening and audit/testing of available technologies resulting in the selection of four CIP liner solutions for further detailed mechanical/physical life testing, together with a field trial on each of the four GDN networks. Also, delivery of a risk assessment framework for lined pipes as an aid to solution selection, and a contractor fit-for-purpose certification scheme framework. These, and the results of the comprehensive test programme, will inform any modification of the performance specification and installation best practice documents generated at Stage 1. The project will essentially be complete by April 2015 and subsequently, once outstanding long-term test results become available those systems that are fit for purpose will be determined. A process through which these and further systems can complete or seek certification will also be defined. Development and testing of the CIP liner technology has revealed a development gap in the maintenance, flow-stopping and end connection systems. Currently no end or side connection fittings exist which are suitable for use on fully structural CIP liners i. e. they bond to the CIP liner and exploit the superior mechanical strength of the fully structural liner material. There is a need for these technologies to be developed and tested for gas applications, initially for systems at 2 barg but potentially at pressures up to 7 barg, to enable the roll-out of fully structural CIP technology across the GDN network and this forms the basis of Stage 3. Phase 1 - Identifying potential solutionsTask 1: Understanding the science of liner shrinkage and relaxationTask 2: Development of a pressure testing procedure for FS CIP linersTask 3: Performance Specification development for bonded main and side connectionsTask 4: Information gathering and promotion of project to supply chain and GDN operations teamsTask 5: Open call for technology solutionsTask 6: Assessment of potential technology solutions and decision on which to take forwardPhase 2 - Demonstration of fully structural technologiesTask 7: Development of generic procedures for fully structural solutionsTask 8: Development of fully structural bonded end and side connection systemsTask 9: Manufacture of bonded end and side connections at WRcTask 10: Laboratory testing of fully structural bonded end and side connection systemsTask 11: Field trials of fully structural bonded end and side connection systemsTask 12: Commercial delivery model, implementation support and reportingNote : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above
Publications (none)
Final Report (none)
Added to Database 09/08/18