dave,
my first reaction would certainly not to wet it, depending on the amount a good sprinkling of talc, flour, baking powder, shake,n vac " you get the idea on to the area would certainly absorb a vast amount of it . leave overnight and vac , avoiding touching the fibres with the tool, but, as you have already wet the area I would suggest ultrapac renovate, allow plenty of dwell then extract and neutrilise.
why be frightened because its wool? to much imho is said about the effect on wool with different chems, if the job warrants an attack, then attack it instead of nancy pancing.
you should be able to get decent results with renovate, I did a wool cream covered in soot by a fall, the walls the furniture was covered, renovate did the trick.
maybe I was just lucky
geoff