Reducing Crude-Transmission Viscosity

STWA’s AOT 2.0 (Fig. 5) Midstream product is an add-on system component for pipeline pump stations. It is designed to reduce the frictional-­pressure loss of the pipeline as the crude oil moves between pump stations along the pipeline. By reducing the ­frictional-pressure loss in the pipeline, pump-station operation requires less pressure to overcome the pipeline’s friction per mile, leading to greater energy efficiency and higher maximum flow rates achievable within the pipeline’s pressure limits. This turnkey product uses an ultralow-amperage electric bath to encourage particulate-matter aggregation of the paraffin or asphalt content of the crude oil being transported, to reduce the viscosity of the crude oil quickly and easily. The system has been tested by several entities, including the US Department of Energy, which reported viscosity reduction as great as 56%. Each unit has a maximum flow rate of 5,000 gal/min and is designed for installation as parallel units to any pipeline flow rate, with a minimum of components and with negligible maintenance required.

Fig. 5: STWA’s AOT 2.0 Midstream units.



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