Legacy Stubs

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
Northern Gas Networks

Network Innovation Allowance

Ofgem

01 August 2020

01 February 2022

ENA months

£578,407

Energy

Yorkshire & Humberside

Network Innovation Allowance

Project Contact, Northern Gas Networks

Northern Gas Networks are working in partnership with Steve Vick International, who will design, develop and field test a suitable solution to enable the seal or abandonment of Tier 1 and Tier 2 metallic stubs up to and including the final transition joint prior to the parent main connection.Discovery – an initial stakeholder session has already taken place with relevant stakeholders across Northern Gas Networks to develop a scope and clear objectives for the project.Design & Development – As the supplier, Steve Vick International (SVI) will undertake Design & Development work at their research facilities in Bradford on Avon, Wiltshire. SVI will detail all work carried out and all key decisions made in the form of a Design & Development Log. This document will inform NGN and SVI in the decisions made at each pre-determined stage gate of the project prior to advancing to the next phase.Field Trials – Carried out under G23 mandate, this phase will establish if the new systems are suitable for installation on the GD network. It will establish the number of projects that can be carried out in one working day and will help assess future cost of each project when being used as an approved technique. Project Closure - This phase will assess the project in its entirety and establish if it has met the initial scope and objectives formulated during Phase 1. It will leave the project in a situation where implementation into the NGN and SVI business models is easily achievable This project covers the design, manufacture and testing of equipment of Tier 1 & Tier 2 Pipe diameters, including GIS:LC14 Approved sealants.The scope has been broken down into the following stages: Tier 1 Foambag Design & Development Tier 1 Entry System Design & Development Tier 2 Foambag Design & Development Tier 2 Entry System Design & Development Remote Entry System Witnessed testing to enable G23 documentation Fields Trails – A total of 40 Field Trails will be undertaken. 20 Tier 1, 10 Tier 2 & 10 Remote Installations Training Project Closeout. Benefits of this project include but are not limited to :Cost Saving : Reduction in excavation costs when compared to the traditional methods. Provide a solution to all Tier 2 stubs ≥18”Ø removing the need for full scale tee piece cut outs on the parent main for any stub with a diameter greater than 14”.Risk reduction: Removes the risks of potential deep excavations on parent mains and potentially removes or significantly reduces the requirements of Traffic Management.Customer and Stakeholder Benefits: Operations can be carried out in a shorter period of time causing less interruption than traditional methods. Additionally, the reduction of Traffic Management and occupation of highways minimizes the disruption on customers and stakeholders. Environmental Benefits: Significant reduction is excavation size compared to normal tee piece cut out on a parent main. There is potential to further reduce excavation size of standard ESEAL 1 and 2 projects by removing the requirement for flow-stopping. This project will aim to meet the following objectives:Design & Development of: Tier 1 Foam bag system for abandoning metallic legacy stubs. Tier 2 Foam bag system for abandoning metallic legacy stubs Tier 1 and 2 reusable gas tight pipe entry system Remote entry system to allow Tier 1 and 2 operations to be carried out from within the parent main Measured using pressure testing, installation validation testing and data collection via the Project Log document. Phase success measured at the stage gate meeting. Overall success measured with Field Trials and reporting to be assessed at the project closeout phase Fully approved Legacy Stub system for use on Tier 1 and 2 metallic stubs - All documentation must be published and approved to G23 standards by SVI and NGN. Ready for Implementation – The project will be measured using all of the published and presented data and reports from design, development and testing to enable implementation.

Steve Vick International working in partnership with Northern Gas Networks will design, develop and field test a suitable solution to enable the seal or abandonment of Tier 1 and Tier 2 metallic stubs up to and including the final transition joint prior to the parent main connection. A solution which currently does not exist.

02/11/22