Projects
Projects: Projects for Investigator |
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| Reference Number | NIA_NGGT0088 | |
| Title | Nitrogen Sleeve Epoxy End-Seal Repair Solution | |
| 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 | PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials) 50%; ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 50%; |
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| UKERC Cross Cutting Characterisation | Not Cross-cutting 100% | |
| Principal Investigator |
Project Contact No email address given National Grid Gas Transmission |
|
| Award Type | Network Innovation Allowance | |
| Funding Source | Ofgem | |
| Start Date | 01 January 2016 | |
| End Date | 01 January 2019 | |
| Duration | 36 months | |
| Total Grant Value | £680,000 | |
| Industrial Sectors | Technical Consultancy | |
| Region | London | |
| Programme | Network Innovation Allowance | |
| Investigators | Principal Investigator | Project Contact , National Grid Gas Transmission (100.000%) |
| Web Site | http://www.smarternetworks.org/project/NIA_NGGT0088 |
|
| Objectives | The objective of this project is to find a simple and cost effective solution, to facilitate the repair of leaking nitrogen epoxy end-seals. This type of repair should need minimal modification to the sleeve end-seal to effectively repair the nitrogen leaks. The project will identify, test, live trial, verify and develop an approved method of using composite wraps to repair nitrogen sleeve end seals. | |
| Abstract | National Grid UKT has approximately 500 leaking Nitrogen Sleeves on the Transmission pipeline system. Approximately 100 sleeves have an epoxy end-seal, and a number of end-seals are known to be leaking. There is a need to find a solution to enable NG to repair the end-seals to render them compliant with our Policies and Procedures. The seals were installed over a between 1960 and 1984, and the precise nature of any leak or defect cannot be known until a sleeve is excavated and inspected. Therefore a flexible repair solution is required so that a more rapid cost effective repair can be made. Composite wrap products, such as Syntho Glass XT produced by Metalyte, has been identified that could, by their flexible nature, be used to wrap the leaking end-seal to any pipeline or fitting geometry, potentially making it a more efficient solution for this type of repair. The wrap could be reinforced with a combination of carbon fibre and other fabrics, so that the strength can be designed to suit the particular application. This project will research and test the suitability and integrity of composite wraps. A number of composite wrap products and configurations will be destructively tested in scenarios that try to reproduce real repair scenarios, to examine the strength, and the pressure sealing capability. The intention is to undertake tests on a dummy end-seal arrangement at the PMC Ambergate facilities to fully evaluate the effectiveness of the proposed sealing techniques. The results will be used to design a number of live trial installations on the network that are required due to the variation in age, condition and design of the nitrogen sleeves. The results of the live trials will be reviewed and if the method is successful the necessary NG policy and composite wrap repair specifications will be created/modified and implemented as policy. If successful, a training package for NG staff to use the technique will also be developed to ensure an effective implementation within the business.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above | |
| Publications | (none) |
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| Final Report | (none) |
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| Added to Database | 12/09/18 | |
