my old phone has been disabled I need to use it

my old phone has been disabled

Did you forget your passcode?, see this Apple article: If you forgot your iPhone passcode

https://support.apple.com/en-us/HT204306

Did you forget your Apple ID that you used to setup the iPhone?, check your Apple ID via your email box, see this Apple article: If you forgot your Apple ID

https://support.apple.com/en-us/HT201354 

See also this Apple article: If your Apple ID is locked or disabled

https://support.apple.com/en-ca/HT204106             

After you have access on iPhone, remove the iPhone from your account, see this Apple article:

Check your Apple ID device list to see where you're signed in

https://support.apple.com/en-us/HT205064    

Trying set up for my wife

Then she can sign in with her Apple ID.

i want to replace sim card from her phone

When it is a different carrier, see this Apple article: How to unlock your iPhone for use with a different carrier

https://support.apple.com/en-us/HT201328

If the SIM format is different, visit or contact the carrier and request a replacement SIM card, normally it is free.