porter sur - to be about

[alan gould]

the dictionary entry for "porter" included this usage.  i'm familiar with "s'agit de..."  is "porter sur" used in conversation?  the dictionary gave the following example: 

Cette recherche, menée dans 3 pays, portait sur les défis de plus en plus importants qui affectent la...

merci

[George Hunt]

I guess it would be a less common usage and I  have not come across it in a conversational setting .

It doesn't mean quite  the same thing as "s'agir" so it is  a nice expression to have under one's belt.