Technological Prospecting for Enhanced Oil Recovery Methods in Onshore Scenarios for the Brazilian Field Application – A Literature Review

Abstract

Enhanced oil recovery (EOR) methods are adopted when the reservoir is not auto-sufficient energetically or even after secondary oil recovery and the reservoir is not producing satisfactorily. This article aims to perform a literature review of EOR methods, starting from the applied techniques worldwide in onshore fields and proposing implementation in Brazilian onshore scenarios. This initial work studied polymer flooding combustion in situ and cyclic steam in onshore fields. The most promising studied method was combustion in situ due to its higher recovery factor. However, further studies are necessary to understand better more cases of EOR methods applied in onshore scenarios.