Fanaelialae
Legend
Only if there's already difficult terrain for the ogre to cross through (it increases the amount of extra movement for difficult terrain from 1 sq to 2 sqs.) Hopefully, the wizard has an ability to make rubble or a really good movement rate to get down an already difficult-terrain hallway, (maybe this is where all those short-range teleports come in handy?) because otherwise, he's no better off with Phantasmal Terrain than he was painting the door on the wall!
It's admittedly a high level spell, but Spectral Vision (Wizard Utility 16 from Arcane Power) seems to be what you are looking for. It can cause a wall to look like a door (and a lot more), and even resists attempts to pierce the illusion (you have to either make an insight check or be hurt by it to see through the illusion).