Modelagem e simulação de zona de dano de falha da bacia rio do peixe: percepções na produção de petróleo, água e estocagem de CO₂.

Abstract

The concern with the dynamic behavior of subsurface fluids has driven research institutions and behavior during the storage process. Several challenges hinder this forecasting, among which reservoir-rock anisotropy and the presence of sealing structures are among the most significant. In this context, the present study aims to conduct the characterization, geological modeling, and numerical simulation of a subsurface f field data, to deliver a more accurate and detailed representation of geological heterogeneities. To accomplish this, data from the Rio do Peixe Basin were compiled and analyzed, based on scientific publications and various research projects developed in the area. As a result, it was identified that the structures composing fault zones in siliciclastic environments display distinct topological behaviors depending on their distance from the principal fault. Additionally, a workflow was developed for modeling the fault zone, comprising the fault core and its associated damage zone. From this three-dimensional model, a water-injection scenario was of the fault zone led to nearly complete reservoir compartmentalization, as evidenced by pressure data. Therefore, the knowledge generated in this research is applicable to companies involved in the energy transition, with the potential to enhance the detailing and prediction of fluid production and storage at great depths, as well as to improve the understanding of fault zones relevant to groundwater production in the semi-arid region of Brazil.