Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/1003181611417236 |
Tectonic evolution of petroleum systems within the onshore Llanos Basin: Insights on the presence of Orinoco heavy oil analogs in Colombia and a comparison with other heavy oil provinces worldwide | |
Mora, A.1,2; Garcia-Bautista, Diego Fernando3; Reyes-Harker, A.4; Parra, M.5; Blanco, V4; Sanchez, N.4; de la Parra, F.4; Caballero, V4; Rodriguez, G.4; Ruiz, C.4; Naranjo, J.4; Teson, E.1; Nino, F.4; Quintero, I1; Moreno, N.4; Cardozo, Eduardo1; Gamba, Nestor1; Horton, Brian K.6,7; Arias-Martinez, Juan Pablo1,8 | |
2019-05-01 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2019 |
卷号 | 103期号:5页码:1179-1224 |
文章类型 | Article |
语种 | 英语 |
国家 | Colombia; Brazil; USA |
英文摘要 | Economic accumulations of hydrocarbons in the onshore Llanos Basin of Colombia are characterized by a central zone (Casanare province) with greater than 20 degrees API gravity oils and a southern province with biodegraded, less than 15 degrees API gravity oils. To date, no conceptual model successfully explains this spatial zonation. In this paper, we employ multiple one-dimensional time-temperature models to map the kitchens for three different source rocks and compare maturity levels through the Cenozoic with the presence or absence of reservoir, seal, overburden, and traps in paleogeographic maps of the Llanos Basin. We find that the Llanos Basin Cenozoic petroleum migration and charge may have been governed by a sedimentary-structural evolution tied to the adjacent orogenic belt in which (1) Paleogene stratigraphic traps developed in the south, as favored by a more segmented basement and potentially transpressional stresses; (2) a subsequent Neogene phase with more pervasive east-dipping low-displacement normal fault traps was discovered; and (3) a final Pliocene-present day phase of contractional traps was found in the easternmost foothill areas. When compared with the evolution of several potential kitchens, we suggest that Upper Cretaceous rocks from the Eastern Cordillera are the primary hydrocarbon source in the zone of heavy biodegraded oils to the south, whereas Lower Cretaceous and selected terrigenous Upper Cretaceous source rocks are largely responsible for the younger Neogene contractional traps of the foothills. This evolutionary pattern for the Llanos Basin favors the presence of smaller but numerous hydrocarbon accumulations rather than the broader zones of heavy oils, as found in the Orinoco belt of Venezuela. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467904600009 |
WOS关键词 | MIDDLE MAGDALENA VALLEY ; THICK-SKINNED TECTONICS ; EASTERN CORDILLERA ; FORELAND BASIN ; KINEMATIC RESTORATIONS ; DRAINAGE EVOLUTION ; NORTHERN ANDES ; THRUST BELT ; HISTORY ; DEFORMATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182558 |
专题 | 地球科学 |
作者单位 | 1.Ecopetrol Explorat Vicepresidency, Bogota, Colombia; 2.Ecopetrol Inst Colombiano Petr ICP, Piedecuesta, Santander, Colombia; 3.Ecopetrol Oleo & Gas Brazil, Rio De Janeiro, Brazil; 4.Ecopetrol ICP, Piedecuesta, Santander, Colombia; 5.Univ Sao Paulo, Inst Energia & Ambiente, Sao Paulo, Brazil; 6.Univ Texas Austin, Jackson Sch Geosci, Inst Geophys, Austin, TX 78712 USA; 7.Univ Texas Austin, Jackson Sch Geosci, Dept Geol Sci, Austin, TX 78712 USA; 8.Univ Caldas, Manizales, Caldas, Colombia |
推荐引用方式 GB/T 7714 | Mora, A.,Garcia-Bautista, Diego Fernando,Reyes-Harker, A.,et al. Tectonic evolution of petroleum systems within the onshore Llanos Basin: Insights on the presence of Orinoco heavy oil analogs in Colombia and a comparison with other heavy oil provinces worldwide[J]. AAPG BULLETIN,2019,103(5):1179-1224. |
APA | Mora, A..,Garcia-Bautista, Diego Fernando.,Reyes-Harker, A..,Parra, M..,Blanco, V.,...&Arias-Martinez, Juan Pablo.(2019).Tectonic evolution of petroleum systems within the onshore Llanos Basin: Insights on the presence of Orinoco heavy oil analogs in Colombia and a comparison with other heavy oil provinces worldwide.AAPG BULLETIN,103(5),1179-1224. |
MLA | Mora, A.,et al."Tectonic evolution of petroleum systems within the onshore Llanos Basin: Insights on the presence of Orinoco heavy oil analogs in Colombia and a comparison with other heavy oil provinces worldwide".AAPG BULLETIN 103.5(2019):1179-1224. |
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