Tools needed to unmount bike pedals
Look on the inside of the crankarms, where the pedal threads into the crankarm, if there is a socket for a hex wrench. Cheaper pedals don't and I'm guessing these don't.

Pedals require a narrow spanner, as indicated by Willeke, thus an ordinary adjustable wrench ... could work but probably won't. Google around for pedal spanners to see how the professional ones look like.

Lastly, I once again agree with Willeke to try and oil them in place. Even if you removed them, disassembling a pedal can be a challenging and tool-requiring business.