Geothermal and hydrocarbon are not good bedfellows. Where you've got a high enough geothermal gradient for it to be a significant source of power, then you're going to be cooking your kerogens at depth shallow enough to have little prospect of encountering a trap, and they'll just sep out ot surface. Plus, you'd have a wider gas window and narrower oil window, and the oil is considerably the more valuable for export sales.
Could you use directly geothermally-generated steam as a steam-flood source all in the one well? You'd need to rig your surface water injector on the injection well to higher pressures than for conventional water or steam injection (higher pressures cost more and wear out faster) but the production wells wouldn't need significantly different completion. Slugging of your steam flow from the geothermal source into the flood injection leg of the well would be an issue - potentially a big issue.
What are the odds of the shape and size of your geothermal field being sufficiently close to power an outer ring of injection wells and efficiently steam-flood into the central few producers. It's not impossible, but it's also not terribly likely. Geothermal fields tending to be relatively large and disperses, but oil fields being sharply delineated by their original oil-water contacts (would you drill out in the water leg, except to provide pressure / waterflood support? Would you sign the AFE for subsidiary drilling centres, access roads etc for a 1/3 increase in well count (steam producer plus the regular injector - producer pair). You might make a case, but it's not going to be a high likelihood case.