An overview on lessons learned with high-performance polyurethane elastomers coatings in Alberta oil sands service, from material properties, operating conditions, wear data, to useful life and cost savings. Wear monitoring system with no perforation of the pipe wall is discussed.
Six years have passed since the first installation of spools with custom-designed internal abrasion protection coatings made from high-performance polyurethane elastomers. These coatings, which do not require an intermediate layer of rubber or neoprene have become an essential tool in oil sands tailings and hydrotransport lines. Useful life of steel pipes is extended significantly; often by factors of 10 or even more.
With the advent of intelligent coatings incorporating wear sensors three years ago, much wider use of high-performance polyurethane elastomer coatings became possible. Such intelligent coatings transmit wear information to the outside of the pipe without the need for a hole through the pipe wall.
This presentation will give an overview on lessons learned with these coatings in Alberta oil sands, from material properties, operating conditions, wear data, to useful life and cost savings.
Key words: wear protection, internal coating, polyurethane, liner, wear monitoring, maintenance cost, useful life, hydrotransport, tailings, steel pipes