This course will focus on rate and pressure measurements commonly encountered during initial production testing of unconventional wells and the effect those measurements can have on performance diagnostics. In Section 2 we will look at examples of rate and pressure data acquired from different types of measurement equipment, and we will learn about using the production ratio’s plot to QA/QC test data. Next, we will learn how to identify measurement errors and how to identify reservoir effects that can influence performance diagnostic interpretations. In Section 3 we will explore the application of real time well performance diagnostics used during initial production testing for draw down optimization. Finally in Section 4 we will look at a general analysis workflow for the interpretation of initial production testing data for well characterization and estimation of ultimate recovery.