Is it possible to use my treechat wallet???

No, you need send some sats to your 3Dordi wallet

well you can import the treechat shaullet on 3dordi I guess...

Yes, You can.
Goto Treechat wallet.
Download Shuallet.
Import in 3D Ordi. (Restore from file option)

https://app.treechat.com/p/1bf2f14c-781e-4f6c-9aba-fe5860238650