This video describes and demonstrates how to do a Decline Curve Analysis (DCA) as first presented by Arps (1945). The Excel workbook can be downloaded with the following link:
https://docs.google.com/spreadsheets/d/1SYY2AcQuanPI9UiCOfdtbQviYP-IEE1n/edit?usp=drive_link&ouid=102871636509202761713&rtpof=true&sd=true