SPECIAL REPORT: Field use supports move to suspension-based DRA

Suspension-based drag-reducing agents (DRAs) have proven to be an alternative to gel-based technology for ConocoPhillips Pipeline Co.’s US crude pipelines. This article examines data from one of Conoco’s pipelines in addressing the relative advantages of suspension-based (vs. gel-based) DRA technology.When added to pipelines or conduits, DRAs typically perform one of two major tasks: Reduction of energy consumption where the same target throughput is accomplished with less pumping power. Increased throughput of the fluid in the pipeline by use of the same pumping power that was used before addition of the DRA. Click here to enlarge imageFig. 1 illustrates the effect of treati...

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