Direct electric heating — Application of multiple offshore DEH power modules

Direct Electric Heating (DEH) was first utilised by Statoil in the 1990´s as an alternative subsea Hydrate mitigation measure. Since then the application of DEH has been expanded to a number of projects predominantly around the North Sea. The Shah Deniz project is looking to install the largest single DEH installation to date with up to ten DEH modules planned for a gas platform located within the Caspian Sea. This paper describes the various design aspects that were considered in the design of the topsides facilities to support the application of a large subsea DEH installation in a remote location.