Design and interpretation of transient tests at well's inception

Given that short-duration tests (CCT and slug) can last only a few minutes-particularly in high-conductivity reservoirs-we approached the challenge with a two-fold strategy. First, we developed a forward model to design the chamber length to ensure that we collected interpretable test data. Second, we combined the CCT and slug tests so that we could control the total test duration, particularly in high-conductivity reservoirs. The approach presented here allowed individual treatment of slug, CCT, and reverse-slug or injection test for underpressured reservoirs. Overall, the model presents a simple, yet complete approach to design and analysis of these short-term tests.