Does anyone know the main issues surrounding batching of different types of crude in an onshore pipeline. What additional facilities/ considerations should be made? is it generally feasible in all pipelines. The two types of crude do not differ that much; densities 800 and 850. Are there any good info sources for this subject?

In some of the Gulf of Mexico ports where multiple crudes may be delivered through a common pipeline they have digital process viscometers installed along the pipeline to "identify" the crude from its known base density and base viscosity.
This identification allows them to dose the crudes with the appropriate amount of "snot" (drag reducer) which optimises the flow rates for the available pump pressure.

Snot is expensive and overdosing doesn't further reduce the pipe friction, it just costs more and apparently there is an optimum amount for each crude.

MORE NEWS