You can use estrogen (patch or gel) and the mini pill but my understanding is you use 3 mini pills a day not one. You'd need a dr to confirm this.
You need to think about whether you fancy a patch stuck on your bum, first of all. Not everyone does!
They are convenient if you don't mind anyone else seeing it as you just change them 2 x a week. They come in different sizes but also different strengths.
You can get an estrogen only patch and then you need a tablet- Utrogestan- alongside it.
If you don't want a patch, you can choose from tablets or gel/spray (for the estrogen) . If you use gel or spray most women now use Utrogestan as the progesterone.
If you find the idea of tablets easier, Femoston is the closest to body-identical (like estrogen gel or spray and Utrogestan.)
Spray or gel is easier to adjust yourself without getting a new prescription for a higher dose of patch.
At 47 you may need a lot more estrogen than older women not having surgical menopause, so gel may suit you better so you can increase it.
Be prepared to try one type of 3 months and see how you feel.
Hope your op goes well.
I hope this hasn't confused you even more!