Análise da qualidade da cimentação de poços de petróleo offshore utilizando técnicas de mineração de dados

Abstract

This work presents the first study of correlation between planning and operation information of the primary cement job in offshore oil wells with the result of these, verified through acoustic logs for cement quality analysis. The big advance for the industry is the reliability of safely following the operations of the well, without the need to cement logging evaluation, which generates a significant saving. For this purpose, at first, a database constructed with information from Petrobras’ wells since 2013 was used. Two other databases had to be created during the development of this work, with information that showed most relevant to the problem. This work presents a direction for further studies of this nature, but indicates the need for further research for each scenario due to the importance of this information for well safety, which, if analyzed incorrectly, can lead to irreparable catastrophes.