In April 2005, the OMV Exploration and Production GmbH started to develop the Strasshof Tief field, a sour gas field in the Vienna Basin. During drilling, testing, stimulating and producing unexpected results were obtained. The approach presented in this thesis is based on detailed analysis of the available well data and to localize opportunities of improvement. This thesis is subdivided into 8 chapters. Chapter 2 illustrates an overview of the Strasshof Tief field. Chapter 3 delivers an insight to the seismic image. The aim of the following three chapters is to analyse the wells from an historical view. Chapter 7 includes a more detailed analysis of incidents, which affected the productivity most. In the last chapter a conclusion of the results and a future prospect are given.