Evolution of biomarkers in extracts of artificially matured kerogen from the Neuquen Basin, Argentina

JUAN BOTTO; SANTIAGO ORDUNA; JORGE DONADELLI; GERARDO MARTINEZ DELFA

Aracaju

Congreso; XVI Latin American Congress on Organic Geochemistry; 2023

Asociación Latinoamericana de Geoquímica Orgánica

Six maturity biomarkers were evaluated in three extracts obtained by artificial maturation of kerogen from the Vaca Muerta formation. The value of the indexes obtained are in agreement with the 13C-NMR results indicating a highly matured kerogen, with the exception of C-29 steranes.The evaluation of biomarker parameters for extracts produced by immature kerogen thermal treatment in the laboratory is a simple approach to study source rock/oil relationships without the interference of other parameters (such as difference in organic matter composition or the oil conservation). Additionally, it can be used in formations where underground source rock samples are not available.