Assessment and Creation of Novel PE Pipe Repair Systems

Completed

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

Applied Research and Development

ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering)

Not Cross-cutting

Project Contact
Cadent Gas

Network Innovation Allowance

Ofgem

01 February 2018

01 May 2020

ENA months

£313,672

Energy

London

Network Innovation Allowance

Project Contact, Cadent Gas

Project Contact, SGN

Task 1 Initial acceptance testing:For each of the repair techniques, it will be necessary to identify any potential benefits the technique can offer over conventional systems, to assess any potential limitations of use in terms of site application and conditions, repair geometry and pressure containment capability, and to identify any perceived gaps. Task 2 Initial field trials of potential PE pipe repair systems:A series of field trials of the most promising systems identified. The first part of Task 2 will be to develop the appropriate G23 (field trial procedure) to enable use of the various repair systems on the low pressure GD network. There will also be a need to select a number of field trial sites. It is suggested that 4 techniques should be selected to cover the variety of potential systems currently available (5 applications of each of the 4 technique types). The installed repairs will be monitored over a period of time, initially 3-6 months is suggested. Task 3 Creation of training material:Rosen will develop and provide more operational guidance within GD Networks. Rosen will develop initial briefing material, probably in the form of an engineering bulletin, to inform network Operations Staff of the potential for use of these techniques. A briefing document will be developed and circulated to potential repair system providers by Rosen. Rosen will also provide an initial outline draft of procedures for the new repair methods. Rosen will provide support for the GD Networks in gaining industry wide approval for the finalised technical specification for methods of repairing leaking PE systems. The proposed scope of work falls into 3 Tasks: Task 1: Acceptance Testing to identify and assess suitable PE repair techniques. Task 2: Initial Field Trials Location of field trials TBC but will be split accordingly between Cadent and SGN Networks. Task 3: Creation of Training Material Creation of training material and draft procedures for the new repair techniques. To develop, approve and deliver potential permanent PE pipe repair systems for use within the GDNs this Project focuses on the initial acceptance testing and field use of several of these repair systems.

Task 1 Initial acceptance testing:For each of the repair techniques, it will be necessary to identify any potential benefits the technique can offer over conventional systems,to assess any potential limitations of use in terms of site application and conditions, repair geometry and pressure containment capability,and to identify any perceived gaps.Task 2 Initial field trials of potential PE pipe repair systems:A series of field trials of the most promising systems identified. The first part of Task 2 will be to develop the appropriate G23 (field trialprocedure) to enable use of the various repair systems on the low pressure GD network. There will also be a need to select anumber of field trial sites. It is suggested that 4 techniques should be selected to cover the variety of potential systems currently available(5 applications of each of the 4 technique types). The installed repairs will be monitored over a period of time, initially 3-6 months issuggested.Task 3 Creation of training material:Rosen will develop and provide more operational guidance within GD Networks. Rosen will develop initial briefing material,probably in the form of an engineering bulletin, to inform network Operations Staff of the potential for use of these techniques. A briefingdocument will be developed and circulated to potential repair system providers by Rosen. Rosen will also provide an initial outline draft ofprocedures for the new repair methods. Rosen will provide support for the GD Networks in gaining industry wide approval forthe finalised technical specification for methods of repairing leaking PE systems.

14/12/22