GEOQUÍMICA DE HIDROCARBUROS DE LA SUBCUENCA BAJA GUAJIRA, COLOMBIA

  This paper proposes two petroleum systems in the Baja Guajira Sub-basin: 1) The Upper Cretaceous Formation-Castilletes Formation system and 2) The Siamana Formation- Macarao Formation-Castilletes Formation system. Geochemical models in two dimensions, calibrated with thermal maturity data, indicate that hydrocarbons have been originated at the base of the stratigraphic sequence and have migrated upward. The critical factor indetermining the formation of the Chuchupa and Ballena gas field was the presence of sealing beds in the top ofthe Castilletes Formation. Well information from the Baja Guajira Sub-Basin reveals a relatively absence of low permeable strata explaining the scatter occurrence of gas field in the Guajira Sub-Basin. The geochemical information along with the geochemical models allow to locate the best prospective area forhydrocarbons, which is located toward the norwest of the Baja Guajira Sub-basin in the offshore region, where it is expected the presence of several hydrocarbon kitchens. Keywords: Geochemistry, Baja Guajira, hydrocarbon, petroleum system, Tmax, %Ro.

• Fecha de publicación: 2011
• Institución: Universidad Industrial de Santander
• Repositorio: Repositorio UIS
• Idioma: spa
• OAI Identifier: oai:noesis.uis.edu.co:20.500.14071/5064
• Acceso en línea: https://revistas.uis.edu.co/index.php/revistaboletindegeologia/article/view/2543; https://noesis.uis.edu.co/handle/20.500.14071/5064
• Rights: openAccess
• License: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)