Projects
Projects: Projects for Investigator |
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| Reference Number | NIA_NGGT0093 | |
| Title | Ultrasonic testing of thin wall pipeline girth welds using high frequency probes | |
| 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 (Physics) 25%; PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials) 50%; ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 25%; |
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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 April 2016 | |
| End Date | 01 February 2016 | |
| Duration | 4 months | |
| Total Grant Value | £10,000 | |
| Industrial Sectors | Energy | |
| 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_NGGT0093 |
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| Objectives | To determine if by using higher frequency probes acceptable results can be achieved to allow there use on thin wall pipe weld inspection. Tests will be carried out on a range of thin wall pipe samples using High frequency probes, the results will be compared to conventional test probes, and a report produced to compare the results. Subject to successful demonstration the technique this will feed into the update of T/SP/NDT/2 for National Grid and allow the extension of ultrasonic and reduce the need for radiography. | |
| Abstract | National Grid applies Non Destructive testing (NDT) to the requirements of T/SP/NDT/2 within this document BS EN 17640 is the reference standard for the requirements of manual Ultrasonic. BS EN ISO 17640 contains standard ultrasonic inspection techniques for ferritic steel welds. The techniques in general include scans with different angles from either side of the weld. The minimum thickness noted in this standard is 8mm. However there are an increasing number of applications involving smaller thicknesses and these cannot strictly be inspected by these methods. Because of this there is a need to use radiography for the thinner pipe weld inspections. Radiography is a none preferred method because of the Health and Safety issues around its use as well as potential environmental concerns. Within National Grids policies radiography is only used when there is no available alternative, if this project is successful then the use of radiography can be reduced further. Within the NDT profession if is recognized that the use of higher frequency probes can improve the inspection of thinner materials. By carrying out a number of controlled inspection on thin wall pipes (4mm to 8mm) and using higher frequency probes the hope is that this will demonstrate that the required scanning sensitivity can be achieved to enable the use of Ultrasonic weld inspection down to 4mm wall thickness.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 | 17/12/18 | |
