Prática de gestão da integridade de poços na indústria de óleo e gás

Abstract

This work proposes a management practice regarding on the life cycle of a petroleum and gas well, along with topics relating to its integrity during operation. The Brazilian National Agency of Petroleum Natural Gas and Biofuels (ANP, in Portuguese) associates the integrity of wells with the presence of Well Barrier Elements (WBE). WBEs are elements capable of preventing undesirable flow from the rock formation to the surface, guaranteeing the safety of workers and equipment associated with the well. The verification of WBEs must obey regulatory norms both national and international. This work presents the case study of an intervention process in a hypothetical well to fix a damaged or degraded WBE. As results, mechanical schematics were presented for monitoring the defined Well Barrier Elements assemblies during the intervention, along with verification tables that validate the identification of barrier elements for the well, capable of preventing the undesired entry of formation fluids to the surface.