Integrated seismic and well-log analysis for the exploration of stratigraphic traps in the Carbonera Formation, Llanos foreland basin of Colombia

Torrado, Lucia; Carvajal-Arenas, Luis Carlos; Mann, Paul; Bhattacharya, Janok P.

doi:10.1016/j.jsames.2020.102607

Cited by 7 publications

(5 citation statements)

References 40 publications

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“…The criteria used to analyze the curves include log values, log shape, stacking patterns and vertical dimensions, along with lithologic descriptions [13]. Subsequently, the stratigraphic surfaces were created by interpolation of the acquired well-tops using the geometric convergence algorithm [54] to generate the stratigraphic surfaces.…”

Section: Systematic Well-log Correlationmentioning

confidence: 99%

“…The precise and detailed three-dimensional prediction of the geological geometries relies on consistent interpretations of primary data and is supported by complementary data [13,14]. A widely used strategy is established on two-and three-dimensional seismic or electromagnetic surveys, supported by wireline log correlations, as shown in the research of Babad et.…”

Section: Introductionmentioning

confidence: 99%

“…In this situation, the implementation of two-and three-dimensional geophysical investigations is not cost-effective, especially to the limited budgets of groundwater investigations. In such cases, pursuing a detailed three-dimensional geological description based on wireline log correlation [13], complemented by available hydrogeological information, has emerged as a viable methodology.…”

Section: Introductionmentioning

confidence: 99%

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Integration of Geological, Geochemical Modelling and Hydrodynamic Condition for Understanding the Geometry and Flow Pattern of the Aquifer System, Southern Nyírség–Hajdúság, Hungary

Flores,

Eid,

Szűcs

et al. 2023

Water

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Geological heterogeneity impacts groundwater flow patterns, necessitating a detailed hydrogeological framework for conceptualization process of aquifer systems. This research developed a new conceptual model of detailed geologic geometry by integrating 133 well-logs, 366 hydrodynamic data and 118 water samples. As new results, systematic 3D log correlation detected four distinct hydrostratigraphic units in the Southern Nyírség–Hajdúság Groundwater Body (East Hungary). The primary aquifer was identified as an incised valley 10–13 km wide and a NE–SW strike. Logan’s approach estimated the average hydraulic conductivity of the Incised Valley Unit (IVU) at 11 m/d, higher than the other three aquifers (3.2 m/d to 4.6 m/d). The average specific capacity of wells screening the IVU is 315.6 m3/d/m, in contrast with the remaining aquifers ranging from 31.6 m3/d/m to 92 m3/d/m. Pressure–depth profiles, dynamic pressure increment and hydraulic head maps revealed recharge–discharge zones and hydraulic windows between hydrostratigraphic units. The elongated pattern on the hydraulic head map at the depth of the IVU showed the existence of a preferential path along its axis within the mapped borders of the IVU. Hydrochemical analysis revealed Ca-Mg-HCO3 water type within the primary aquifer and Na-HCO3 water type in the laterally connected aquifer. The saturation index values indicated a transition from undersaturated to supersaturated state inside the main aquifer for calcite and dolomite minerals. The correlation matrix and PCA results demonstrated that the carbonate weathering process is the main factor controlling the groundwater chemistry. This integrated approach holds significance for future applications of the regional conceptual model in water management planning, sustainable aquifer development and contaminant transport modelling. It provides essential contributions to informed decision-making and the formulation of effective strategies, ensuring the long-term availability and utilization of groundwater resources.

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Section: Systematic Well-log Correlationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integration of Geological, Geochemical Modelling and Hydrodynamic Condition for Understanding the Geometry and Flow Pattern of the Aquifer System, Southern Nyírség–Hajdúság, Hungary

Flores,

Eid,

Szűcs

et al. 2023

Water

View full text Add to dashboard Cite

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“…However, toward the end of the Eocene (∼56-34 Ma), marine influence gradually waned, coinciding with global cooling, sea level fall, and a decrease in terrestrial plant diversity ( Jaramillo et al 2006). In the Oligocene (∼34-23 Ma), deltaic environments transitioned into fluvial drainages with episodic marine incursions and sediment supply from both the Guiana Shield and the emerging Andes (Torrado et al 2020). The Paleogene deltaic and estuarine environments of northern South America were characterized by mangrove vegetation composed of Nypoideae palms (e.g., Rull 2002), Zonocostites ramonae (aff.…”

Section: Biostratigraphy and Regional Vegetation Changesmentioning

confidence: 99%

Neogene History of the Amazonian Flora: A Perspective Based on Geological, Palynological, and Molecular Phylogenetic Data

Hoorn

Lohmann

Boschman

et al. 2023

Annual Review of Earth and Planetary Sciences

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The Amazon hosts one of the largest and richest rainforests in the world, but its origins remain debated. Growing evidence suggests that geodiversity and geological history played essential roles in shaping the Amazonian flora. Here we summarize the geo-climatic history of the Amazon and review paleopalynological records and time-calibrated phylogenies to evaluate the response of plants to environmental change. The Neogene fossil record suggests major sequential changes in plant composition and an overall decline in diversity. Phylogenies of eight Amazonian plant clades paint a mixed picture, with the diversification of most groups best explained by constant speciation rates through time, while others indicate clade-specific increases or decreases correlated with climatic cooling or increasing Andean elevation. Overall, the Amazon forest seems to represent a museum of diversity with a high potential for biological diversification through time. To fully understand how the Amazon got its modern biodiversity, further multidisciplinary studies conducted within a multimillion-year perspective are needed. ▪ The history of the Amazon rainforest goes back to the beginning of the Cenozoic (66 Ma) and was driven by climate and geological forces. ▪ In the early Neogene (23–13.8 Ma), a large wetland developed with episodic estuarine conditions and vegetation ranging from mangroves to terra firme forest. ▪ In the late Neogene (13.8–2.6 Ma), the Amazon changed into a fluvial landscape with a less diverse and more open forest, although the details of this transition remain to be resolved. ▪ These geo-climatic changes have left imprints on the modern Amazonian diversity that can be recovered with dated phylogenetic trees. ▪ Amazonian plant groups show distinct responses to environmental changes, suggesting that Amazonia is both a refuge and a cradle of biodiversity.

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“…For the crystalline basement, the assumed value is 1 (massive granite, without shales), for the Paleozoic 0.5 according to lithologic descriptions of well logs (Alvarado, 2013), and for the Fm, Une 0.9 [43].…”

Section: Recoverable Heatmentioning

confidence: 99%

Low - medium enthalpy geothermal resource assessment in deep reservoirs of the Llanos Basin - Colombia

Ramos

Gonzalez-Penagos

Patiño

et al. 2022

CT&F Cienc. Tecnol. Futuro

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The exploration and exploitation of hydrocarbons in sedimentary basins such as the Llanos Basin of Colombia, have enabled the acquisition of large volumes of surface and subsurface data, for assessing the geothermal potential of deep aquifers. The integrated analysis of geothermal play elements such as temperature, reservoir - fluid properties, and their depth in the basin, with the available hydrogeological-chemical data, allow us to define three regional plays as follows: Play A, characterized by naturally fractured reservoirs, in crystalline basement rocks - Paleozoic, with temperatures above 150 ºC, semi-confined aquifers; b) Play B, composed by Mesozoic quartz sandstone reservoirs, with primary porosity greater than 10%, temperatures between 75 ºC to 150 ºC, semi-confined aquifers, near to high hydraulic head zones with 500 m difference ranges in the regional piezometric surface; c) Play C, composed by Mesozoic quartz sandstones, high primary porosity, temperatures below 100 ºC, confined aquifers. Available well and Oil and Gas production data suggests that Play A is speculative, Play B is hypothetical, and Play C is known.

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Integrated seismic and well-log analysis for the exploration of stratigraphic traps in the Carbonera Formation, Llanos foreland basin of Colombia

Cited by 7 publications

References 40 publications

Integration of Geological, Geochemical Modelling and Hydrodynamic Condition for Understanding the Geometry and Flow Pattern of the Aquifer System, Southern Nyírség–Hajdúság, Hungary

Integration of Geological, Geochemical Modelling and Hydrodynamic Condition for Understanding the Geometry and Flow Pattern of the Aquifer System, Southern Nyírség–Hajdúság, Hungary

Neogene History of the Amazonian Flora: A Perspective Based on Geological, Palynological, and Molecular Phylogenetic Data

Low - medium enthalpy geothermal resource assessment in deep reservoirs of the Llanos Basin - Colombia

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