strange 3bet with 300bb deep

Just complete preflop, that hand is far from a good one. Limpers aren't folding so you don't have much folding equity preflop. When BTN limp-3bets he has Aces pretty often. As MP will come along and your hand rarely flops good enough I would just fold to a 3bet.

But I find this hand is pretty decent preflop, I think this hand I would OR too in UTGfor this reason I raise preflop in SB(in propokertools it's ranking 13%, and I open like Top 15% in UTG), I'm wrong?? for you is like what kind of range Top 20% 30%??. After what you said with the 3bet you are alright I was no thinking of folding but in reality I'm putting monney in a really bad spot with in one part against AA without position in 3player and with very deep stake.

Problem with the hand is that it will rarely flop anything really strong. You have AJs, which can make strong hits on the flop, but 96s will not.

When you are going to be at least 3way oop, what kind of flops are good for you? Especially 300bb deep?

Yes, I know this hand don't hit a lot of good flop. And I think in much higher stake I would limp this hand in this spot. But here My thought was to bet and in the flop steal if is locked (like paired, some monocolor and some Kxxr or Axxr) and the other thing generrally they are passive in that level at PLO 10 so when you check you can go at the showdown for few monney. And the opponent do many big mistake like for exemple if I hit my nuts draw I have a lot of implied odds or some unlikely nuts straight like TQKxx, 578xx,78Txx...
But this is how I analyse my line when I bet here without position, maybe I'm wrong and I'm over playing my hand considering a edge much higher than the real one.

You have two Holdem hands, which isn't a strong PLO hand. When you AJs hits, it's easy to play. But what if that 96s hits? Board is 7h5s2h? How do you play it oop? 87x flops?

Playing hands that will hit marginal stuff leads to situations where it is hard to estimate your real equity. With 9high flush draw you often have to hope opponent(s) doesn't have higher flush draw, with KJ6 flop you are hoping no one has KJ or better etc. Now playing those marginal things is hard enough in position. Here you are creating a situation where you are going to have marginal hit often oop against at least 2 opponents. And the fact that you are that deep gives opponent a spot to use position even more than with 100bb stacks. Of course he is 48/11 but AF is 2,5 so he knows where the raise button is.

Don't get me wrong, I would open a lot of hands here against limper. But that hand looks a lot better than it actually is. If it was slightly stronger, I would like it more.