APTA
- This ZIP file contains the APTA Delphi program. The APTA program can plot the decline curves of Arps, Fetkovich, Blasingame method and dimensionless flow rate curve for finite outer boundary and constant pressure at inner boundary. Its formula is described in Chapter 2.1, 2.3, 3.1, 3.2 and 4.2 of the book “Advanced Production Decline Analysis and Application” by Hedong SUN, Academic Press, Elsevier 2014.