Ovewrite a data extension field in the send log

I am trying to overwrite the data that comes into the send-log from a Data Extension field on an email send.

I've researched UpdateDE but I'm not trying to permanently alter the data extension. I'm trying to null the value for all recipients/users in the DE on a particular send and save a code snippet for when it is needed.

The DE field is Id, so I've tried:

%%[var @Idset @Id = ""]%%<p>ID: %%Id%%</p>

In this test, it still outputs the original DE Id.

Any help or guidance would be greatly appreciated.