Automated Well Test Analysis II Using ‘Well Test Auto’

Abstract

The use of computers in the petroleum industry is both cost effective and a solution to human errors in carrying out data analysis. In well testing, recent advances in gauge equipments and the need for a timely interpretation of well-test data, to mention a few, have spurred the need for a computer aided approach.

The well test interpretation procedure has been completely automated in this work by implementing the approach presented in part I of this paper, in a computer program using Visual Basic Excel; WELL TEST AUTO.  This program was tested on ten (10) data sets. These data sets comprise of eight (8) design/simulated data sets (Using a simulator and lifted from literature) and two (2) actual field data sets (lifted from literature). Although the results of the ten (10) data sets proved successful as the confidence intervals (CIs) of the parameters were within an acceptable range, selected three (3) data sets were analyzed and presented in this work.