Boosting the Heating Capacity of Oil-Production Bundles Using Drag-Reducing Surfactants (original) (raw)

All Days, 2003

Abstract

Insulated and heated pipe bundles are frequently used in sub sea oil production systems to avoid low oil temperatures. To boost the heating capacity of the 10 km long pipe bundle from the Gullfaks South field in the North Sea, a surfactant based DRA was developed. The DRA was injected in the 20 km long heating medium loop in July 2001, and after over 12 months of operation the DRA gives over 50 % increase in the heating medium flow rate. The surfactant has effectively reduced the pressure drop in the heating medium circulation loop resulting in an increase in the flow rate and in the bundle heating capacity.

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