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Direct Electrical Heating

Flow assurance is often vital to successful development of deepwater fields.  As the industry explores deeper-water wells, longer transportation distances have become more common; this presents a specific challenge for subsea production flowlines.  The combination of low temperatures and high pressure present on the seabed can result in hydrate formation ot wax deposits inside flowlines, limiting or even blocking the flow.  Electric alternating current can be passed through the pipe wall; the pipe acts as a conductor in a single phase circuit and therefore, heat is generated to maintain the fluid's temperature above critical values.

ANSYS coupled-field solutions are useful for efficiently designing electrically heated flowlines.