Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2020-2021).

Insulated pipe and steel structures arise in a large number of applications including oil and gas pipeline,x000D
balance of plant in the petrochemical industry, steel support structures for buildings and large liquid storagex000D
containers. Degradation of insulated metal piping, pressure vessels and structural components may be thex000D
result of 1) internal corrosive processes, arising within the existing transport medium or 2) external sourcesx000D
such as aerated water or water with corrosive contaminants that have been introduced into thick (up to 51 mm)x000D
insulating barriers. Other areas where corrosion may occur include above ground carbon steel storage tanks,x000D
where insulating layers can be 6 to10 mm thick. Current ultrasonic inspection technology is only capable ofx000D
localized wall thickness measurements after insulation removal. PEC has a demonstrated capability to performx000D
inspection in the presence of conducting ferromagnetic materials at large lift-offs. This project will: 1) Developx000D
pulsed eddy current (PEC) technology, including probe design that is optimized for rapid inspection ofx000D
insulated electrically conducting pipe at large lift-off for general corrosion. 2) Demonstrate capabilities andx000D
limitations of such technology. 3) Develop theoretical models of the response of PEC to changing wallx000D
thickness, lift-off and permeability and validate these against laboratory measurements. 4) Optimize probex000D
design for the target inspection conditions and assist in identifying parameters that may affect measurementx000D
accuracy using the developed models. This work will be important to inspection service providers who cannotx000D
currently perform local inspection of pipe without expensive and time consuming removal of insulation.x000D
Development of technologies that will assist in lifecycle management and improve assessment capability forx000D
conditions of corrosion in chemical processing, oil and gas and liquid transport and containment industries willx000D
support the performance of Canadian industry in these areas. HQP will be trained to enter the workforce in thisx000D
rapidly growing area of in-service inspection.x000D