Oil and Gas Accumulation Conditions and Accumulation Mode in
Llanos Basin，South America

doi:10.11885/j.issn.1674-5086.2014.06.15.01

Abstract

Abstract:

Llanos Basin is an important oil and gas rich basin in south America and even in the world which is located in the
north of south American plate. Based on analysis of the Llanos Basin hydrocarbon accumulation，with condition，consideration
of the tectonic evolution and sedimentation impact，the article reveals the hydrocarbon accumulation characteristics of Llanos
Basin and establishes hydrocarbon accumulation mode. Llanos Basin has experienced three tectonic evolution stages of Paleozoic
passive continental margin，Mesozoic back arc rift and Cenozoic foreland basins. There have developed multiple sets of
hydrocarbon source rocks and reservoir cap combinations，various types of traps and complicated oil and gas distribution in the
basin，and have good prospects for exploration and development. The hydrocarbon accumulation of the basin is characteristics
of remote migration，mixed-source charging，broken sand-dimensional，continuous transporting and stepped-trapping accumulation；
the oil and gas distribution of main production layer of Oligocene Carbonera Formation is characterized by large and
medium-sized deep oil and gas fields formed by preferred trap of near hydrocarbon source rocks，and shallow-small-composite
oil and gas fields formed by trap of far hydrocarbon source rocks. This knowledge obtained has important reference significance
in further oil and gas discoveries of Llanos Basin.

Key words: Llanos Basin, source rocks, reservoir, cap rock, traps

Xu Guosheng1, Liu Wenjun1, Xu Shenghui2, Qian Jin1, Yu Qing1. Oil and Gas Accumulation Conditions and Accumulation Mode in
Llanos Basin，South America[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2014.06.15.01.

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References

[1] 朱毅秀，刘洛夫，金强. 亚诺斯盆地油气地质特征及有

利区带预测[J]. 新疆石油地质，2004，25（1）：110–113.

Zhu Yixiu，Liu Luofu，Jin Qiang. Petroleum Geology and

Favorable Zones for Hydrocarbon Exploration in Llanos

Basin，Colombia[J]. Xinjiang Petroleum Geology，2004，

25（1）：110–113.

[2] 刘亚明，张春雷. 哥伦比亚油气地质与勘探[J]. 石油实

验地质，2011，33（3）：226–232.

Liu Yaming，Zhang Chunlei. Petroleum geology and exploration

in Colombia[J]. Petroleum Geology & Experiment，

2011，33（3）：226–232.

[3] Villamil T，Munoz J，S´anchez J. The gibraltar discovery，

northern Llanos Foothills，Colombia：Case history

of an exploration success in a frontier area[J]. Journal of

Petroleum Geology，2004，27（4）：321–333.

[4] Houghton J C，Dolton G L，Root D H，et al. Geological

survey estimation procedure for accumulation size

distributions by play[J]. AAPG Bulletin，1993，77（3）：

454–456.

[5] Cooper M A，Addison F T，Alvarez R，et al. Basin development

and tectonic history of the Llanos Basin，eastern

Cordillera，and middle Magdalena Valley，Colombia[J].

AAPG Bulletin，1995，79：1421–1443.

[6] Villamil T. Campanian–Miocene tectonostratigraphy，depocenter

evolution and basin development of Colombia

and western Venezuela[J]. Palaeoecology，1999，153（1）：

239–275.

[7] Cazier E C，Hayward A B，Espinosa G，et al. Petroleum

geology of the Cusiana Field，Llanos Basin Foothills，

Colombia[J]. AAPG Bulletin，1995，79（10）：1444–1463.

[8] 田纳新，陈文学，殷进垠，等. 安第斯山前典型前陆盆

地油气成藏特征及主控因素[J]. 新疆石油地质，2011，

32（6）：692–695．

Tian Naxin，Chen Wenxue，Yin Jinyin，et al. Hydrocarbon

accumulation features and main controlling factors in

typical foreland basins in pediment of the Andes[J]. Xinjiang

Petroleum Geology，2011，32（6）：692–695.

[9] Luisa A，Rebata H，Matti E R，et al. Georg iriond sedimentology

and ichnology of tide influenced late Miocene

successions in western Amazonia：The gradational transition

between the Pebas and Nauta Formations[J]. Journal

of South American Earth Sciences，2006，21：96–119.

[10] Santos C，Jaramillo C，Bayona G，et al. Late Eocene marine

incursion in north–western south America[J]. Palaeogeography，

Palaeoclimatology，Palaeoecology，2008，

264：140–146.

[11] Andr´es M，Horton B K，Mesa M，et al. Horton，Migration

of Cenozoic deformation in the eastern Cordillera of

Colombia interpreted from fission track results and structural

relationship：Implications for petroleum systems[J].

AAPG Bulletin，2010，94：1543–1580.

[12] Warren E A，Pulham A J. Anomalous porosity and permeability

preservation in deeply buried tertiary and mesozoic

sandstones in the Cusiana Field，Llanos Foothills，Colombia[

J]. Journal of Sedimentary Research，2001，71（1）：

2–14.

[13] Bachu S，Ramon J C，Villegas M E，et al. Geothermal

regime and thermal history of the Llanos Basin，Colombia[

J]. AAPG Bulletin，1995，79（1）：116–129.

[14] Moretti I，Mora C，Zamora W，et al. 2009 AAPG annual

convention & exhibition；abstracts volume[C]. Tulsa：

American Association of Petroleum Geologists and Society

for Sedimentary Geology，2009：1–8.

[15] Escalona A，Mannb P. Tectonics，basin subsidence mechanisms，

and paleogeography of the Caribbean–south

American plate boundary zone[J]. Marine and Petroleum

Geology，2011，28：8–39.

[16] Villamil T. Campanian–Miocene tectonostratigraphy，depocenter

evolution and basin development of Colombia

and western Venezuela[J]. Palaeogeography，Palaeoclimatology，

Palaeoecology，1999，153：239–275.

[17] Bayona G， Jaramillo C， Rueda M， et al. Paleocene–

middle Miocene flexural-margin migration of

the non-marine Llanos Foreland Basin of Colombia[J].

C.T.& F Ciencia，Tecnologia，Futuro，2007（12），3（3）：

51–70.

[18] Luisa A，Rebata H. Tidal-channel deposits on a delta plain

from the upper Miocene Nauta Formation，Maranon Foreland

Sub-basin，Peru[J]. Sedimentology，2006，53（5）：

971–1013.

[19] Dzou L I. Application of new diterpane biomarkers

to source，biodegradation and mixing effects on central

Llanos Basin，Colombia[J]. Organic Geochemistry，

1999，30（7）：515–534.