Geochemical characterization of the Cretaceous Gacheta Formation, in the Casanare area, and its contribution of hydrocarbon charge as a source rock for petroleum systems present in the Llanos Orientales basin, Colombia

被引：0

作者：

Cadena-Mejia, Maria Paula ^{[1
,2
]}

Cordoba-Ortiz, Fabio ^{[2
]}

Kairuz-Hernandez, edgar Chajid ^{[3
]}

Mejia-Molina, Alejandra ^{[1
]}

Duque-Valenzuela, Nicolas ^{[2
,4
]}

机构：

[1] Univ Pamplona, Fac Ciencias Bas, Villa Del Rosario, Colombia

[2] Gmas S A S, Bogota, Colombia

[3] Neoil Energy, Bogota, Colombia

[4] Serv Geol Colombiano, Bogota, Colombia

来源：

BOLETIN DE GEOLOGIA | 2024年 / 46卷 / 03期

关键词：

Llanos Foothills; Generative potential; triangle log R Methodology; Crude oil analysis; One-dimensional modeling; EASTERN CORDILLERA; FORELAND;

D O I：

10.18273/revbol.v46n3-2024001

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The geochemical characterization of the Gachet & aacute; Formation, based on the geochemical variables quantity, quality and maturity of organic matter, allowed the identification of an area with greater generating potential in the west of the study area, in the Casanare department. In addition, application of the triangle log R methodology made it possible to determine the lower interval of the Gachet & aacute; Formation the one with the highest generating potential. Crude oil analysis in the area, as well as the simulation of hydrocarbon generation and expulsion events, contributed to the identification of two oil systems, SP1: Chipaque- Guadalupe (.), from which the FCO1 family originates, and SP2: Gacheta- Mirador (.), from which the FPM family originates. Based on the above, it is postulated that the crude oils present in the platform of the Llanos Orientales Basin are product of the mixture of the two families mentioned above, defined in this study as GPF.

引用

页码：13 / 38

页数：26