New techniques for the measurement of pipeline depth of cover
National Grid Gas Transmission
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Network Innovation Allowance
Gas Transmission Networks
The following project scope is to be undertaken:
- Develop a methodology to identify areas of reduced pipeline depth of cover using inertial measurement data, ground elevation data and additional geographic data.
- Perform an assessment of depth of cover using the developed methodology for 1 pipeline. This pipeline will be internally inspected using an intelligent pig which will include an inertial measurement unit, once inspected this data will be processed to provide an accurate route showing the position and elevation of the pipeline. The accurate route of the pipeline will then be processed with ground elevation data and additional geographic data sources to identify the depth of cover along the pipeline.
- Evaluate the accuracy of the developed methodology by performing in-field measurements of depth of cover using pipe locating and survey equipment
Investigate the feasibility of using a new methodology to identify areas of reduced depth of cover on a buried pipeline.
Deliver of a technical report documenting a methodology and the results from a trial on 1 pipeline including in-field validation.