How to move a singe field of oil etc? now there is only a resource displacer for ore fields.

Is working perfectly for oil.
You can do it with Filter mining dril.
1. Build a pumpjack over a oil field.
2. Set only this drill with water boost (Cursed Drill Boost).
3. Build a Resource displacer near the pumjack.
4. Select this oil water boost and displace only this field.

sounds more complicated than before, let me have a look tomorrow

Ok, i've added a mini displacer, to move only 1 field hehe

I try to understand what you min with "2. Set only this drill with water boost (Cursed Drill Boost)."
How to do that? the pumpjack has no input for water (the mining drill also not)
Cursed Drill Boost is installed
Now Cursed Filtered Minig Drill is installed too. for the mining drill now i can set the filter with water, but not for the pump jack.
playing with Krastorio+SPace Exploration

the mini resource displacer still does not work on oil patches
https://prnt.sc/usu3zw
https://prnt.sc/usu59c

Check version 0.1.5