Can you get into Oola's old lab?
Yes, in fact you can! (There's often a rich copper vein waiting by the exit for you)
However, to open the door to the lab, you need an Energy Crystal, which is a random drop from mobs in the zone.
Once you have one, you can take the crystal to the door, hand it to researcher Orl, and you will start an event that takes you through Oola's lab.