Projects
Projects: Projects for Investigator |
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| Reference Number | NIA_SGN0005 | |
| Title | Corrosion Mapping System for Buried "Orpheus" Regulator Modules | |
| 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) 100% | |
| UKERC Cross Cutting Characterisation | Not Cross-cutting 100% | |
| Principal Investigator |
Project Contact No email address given SGN |
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| Award Type | Network Innovation Allowance | |
| Funding Source | Ofgem | |
| Start Date | 01 January 2013 | |
| End Date | 01 November 2013 | |
| Duration | 10 months | |
| Total Grant Value | £209,602 | |
| Industrial Sectors | Technical Consultancy | |
| Region | South East | |
| Programme | Network Innovation Allowance | |
| Investigators | Principal Investigator | Project Contact , SGN (100.000%) |
| Web Site | http://www.smarternetworks.org/project/NIA_SGN0005 |
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| Objectives | The objectives of this project are to: Design and build a mechanism that can be manually deployed, whilst being attached to the internal cover surface of the installation and provide 95% corrosion mapping of Orpheus 10 governor. Eliminate the need to excavate for maintenance inspection of Orpheus modules and as a result eliminate excavated material sent to landfill. Eliminate the hazardous operation of grit blasting, along with the safety and environmental impacts associated with painting the pipework. Reduce the time taken to carry out the maintenance inspection operation for Orpheus modules. Reduce the amount of excavation work required, which in turn will reduce the amount of disruption to customers. Reduce the amount excavated material sent to landfill. In order to determine whether this project has been successful or not the project must progress through a number of stage gate milestones. SGN’s project manager will evaluate the design and the mechanism’s performance against the requirements before approving progress to the next stage. Some of the key expected outcomes, representing successful delivery of the project, will be to assess: The potential to develop a unit that will carry out 95% mapping of the Orpheus 10 governorWhether the need to excavate for maintenance inspection of Orpheus modules can be eliminatedThe reduction in the amount of excavation required and the amount of material sent to landfillWhether the use of grit blasting for inspection purposes can be eliminated | |
| Abstract | All pressure systems operating above 0. 5barg are included within the scope of the Pressure Systems Safety Regulations (PSSR) 2000. In order to maintain the integrity of buried regulator modules that fall within the scope of the regulations it is essential that the have cathodic protection (CP) with monitoring being undertaken. Where CP has not been applied or has failed, a detailed ultrasonic inspection should be carried out at a frequency not exceeding 6 years. Buried Orpheus regulator modules have a history of failed CP and where appropriate, must therefore be subjected to conventional Non Destructive Testing (NDT). The installation must be carefully excavated, the vessel and associated pipework will then be grit blasted andinspected and assessed for corrosion prior to being repaired (if necessary) and re-painted with the excavation being reinstated at a later date. In specific circumstances this maintenance operation may require road closure notices and lane rental payments to be agreed with the local road authorities. The time associated with carrying out this particular maintenance inspection on the buried Orpheus module is approximately 3 weeks. In order to minimise the completion time and the operational activities associated with this process, the development of a technique that requires no excavations or grit blasting and can carry out internal long range NDT inspection of affected Orpheus modules would be advantageous to all Network Licensees in Great Britain (GB) <p>This project aims to design, build and manually deploy a suitable mechanism for carrying out corrosion mapping on Orpheus 10 governor module installations. In order to achieve the anticipated expectations of this project SGN have delivered a standard Orpheus 10 governor installation to the project supplier’s research facilities, located at Egremont, Cumbria. This has provided them with a fundamental basis to work from when exploring the methodology of solving the problem as described: </p> <ol> <li>The deployment system sits flush on the Orpheus 10 flange and locates on the protruding pins. The deployment system comprises a turntable ring and a frame to deploy an ultrasound probe vertically into the valve. The poles are initially fed through the deployment wheels. </li> <li>The ultrasound head and camera is then attached to the end of the deployment pole. A cover plate can used to allow the operator to attach the camera and ultrasound head to the deployment poles safely after it is clear from the deployment wheels. Afterwards the ultrasound head would be lowered to the top of the vessel and zeroed for scan. </li> <li>The operator deploys the ultrasound head mounted to the deployment poles into the Orpheus vessel at the desired speed. </li> <li>The ultrasound head is deployed to the base of the Orpheus vessel, the poles will be designed to ensure the vertical line is retained when the ultrasound head passes over the 14" opening from the pipe inlet. The ultrasound head is attached to the deployment pole by a hinge; as it reaches the curved base, it pivots to ensure the probe keeps contact to the base. </li> <li>The ultrasound head traverses to / past the mid point of the base. </li> <li>The ultrasound head reaches the opposite wall to ensure complete coverage on the base of the valve. </li> <li>The ultrasound head isretrieved then the top assembly is rotated by one increment and the process repeated. </li> <li>Once 80-90% of scanning has been completed the lower pole section is reconfigured to be 90° to vertical and offset to allow the ultrasound head to reach around and under the 3" and 14" pipe profilesTo allow the ultrasound head & probe to reach around the pipes, the turntable at operator level is rotated whilst the ultrasound head is lowered under the desired pipe. This would allow the ultrasound head to reach past the centre line of 14" pipe and ensure complete coverage. </li> </ol> <p>Following completion of the project, which includes a rig trial that will be carried out in Egremont, SGN will be provided with a final report that presents the findings, conclusions and any further recommendations of the project. </p>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 | 09/08/18 | |
