News
What Is Drag Reducer Agent?
2006-5-8 13:19:04
Drag Reducer Agent (DRA) is a special polymer that injected into a pipeline trasporting fluids (crude, refined products, non-potable water, …) so reducing the frictional losses in the pipeline. The concentration injected is very small (in fact, in ppm levels!)
Drag reducer research started in early 1970’s. In late 1970’s first application of DRA in Alaska held by Conoco.
Drag Reduction Mechanism
DRA interacts with turbulent flow in the region near the pipeline wall and reduce the turbulence. As such, frictional pressure losses are reduced. For the consequence, DRA will only work effectively in a turbulent flow.
Applications of Drag Reduction Agent
1. Increase amount of fluids flowing in the pipeline
2. Reduce pipeline operating pressure
3. Energy and operation cost savings
4. Refinery debottlenecking
5. Shorten demurrage time
Drag reducer research started in early 1970’s. In late 1970’s first application of DRA in Alaska held by Conoco.
Drag Reduction Mechanism
DRA interacts with turbulent flow in the region near the pipeline wall and reduce the turbulence. As such, frictional pressure losses are reduced. For the consequence, DRA will only work effectively in a turbulent flow.
Applications of Drag Reduction Agent
1. Increase amount of fluids flowing in the pipeline
2. Reduce pipeline operating pressure
3. Energy and operation cost savings
4. Refinery debottlenecking
5. Shorten demurrage time