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First EAGE Workshop on Advanced Seismic Solutions and New Exploration Concepts to Unlock the Potential of the Caribbean Shelf
- Conference date: October 24-25, 2019
- Location: Bogotá, Colombia
- Published: 24 October 2019
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Plays of the Offshore Caribbean Basins of Colombia
Authors E.C. Kairuz, C. Rey, J. Osorno and R. ArismendySummarySummary not Available
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Case History: Study of Gas Accumulations and Gassy Soil Properties, Gulf of Mexico
Authors R. Nava-Castro and K. GanSummarySummary not Available
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Stratigraphic analysis of the Bahia intraslope basin, offshore northern Colombia
Authors A. Sarmiento, T. Villamil and G. SarmientoSummarySummary not Available
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Automatic Fault Interpretation in Mixed, Complex Fault Systems
Authors V. Perez, J. Dominguez and G.A. DornSummarySummary not Available
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Nearer, Denser, Longer: Towed Streamer Acquisition Tailored to Full Waveform
Authors D. Unger, M. Widmaier, S. Naumann, G. Rønholt, D. O’Dowd and C. RoalkvamSummarySummary not Available
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Structural Provinces of the Colombian Caribbean offshore
Authors R. Arismendy, E.C. Kairuz, J. Osorno and C. ReySummarySummary not Available
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Sequence stratigraphic model of Colombian offshore
Authors R. Arismendy, C. Rey, J. Osorno and E.C. KairuzSummarySummary not Available
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Exploration history of the offshore Caribbean in Colombia
Authors E.C. Kairuz, S. Mercado and N. MantillaSummarySummary not Available
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Mud Diapirs and Mud Volcanoes Associated with Gas Hydrates System in the Sinu Fold Belt of Colombia, South Western Caribbean and its Significant in the Petroleum System.
By M. GarciaSummaryThe accretionary Sinú fold belt of Colombia presents numerous gas and oil seeps often associated with mud volcanoes. Truncation and folding of reservoir rocks against mud diapirs have been erroneously considered as potential structures for hydrocarbon traps ignoring the significance of the thick Gas Hydrate Zones (GHZ) present in large offshore areas of the South Western Caribbean Sea.
Seismic images of the Sinu fold belt clearly indicate that mud diapirs and volcanoes are associated with GHZ that are present at shallow depths as indicated by the Bottom Sea Reflector (BSR) as it is observed in large and numerous offshore areas in the South Western Caribbean Sea.
Hydrocarbon generation and migration in the Sinú Fold belt, Colombia, started in the Paleocene, following gas migration through fault planes took place reaching the sea floor, these thermogenic gases including oil and condensate, were progressively trapped as gas hydrates forming seals as the GHZ became thicker and larger in area. Then in a continuous basin subsidence, and a high sedimentation rate, gas hydrates layers were buried and preserved due to a low geothermal gradient. As gas hydrates layers were buried to deeper depth, temperature increased and the Gas Hydrate Stable Zone became unstable and melted down liberating great volumes of gas and oil that migrates upward forming mud diapirs and mud volcanoes as they reached the sea floor and the coastal surface.
These sequence of events indicates that mud diapirs and volcanoes are the results of destruction of Gas Hydrate Stable Zones that were previously formed by migration and trapping of thermogenic gases originated in deep hydrocarbon kitchen beneath the strata were mud diapirs were derived from.
This new interpretation considers that mud diapirs and volcanoes constitute the seal formation rock of the petroleum system, also this new interpretation explains the lack of hydrocarbon discoveries in the Sinú Fold belt of Colombia and propose to explore beneath the mud diapirs and gas hydrates zones in the Sinú fold-belt and other similar location in the South western Caribbean Sea.
Carbon isotopic analysis (13C/12C) on methane samples obtained from mud volcanoes in the Sinu fold belt indicate a mixture of thermogenic and biogenic gases. This situation is explained by the presence of a bacteria consortium that generate methane during microbial degradation of oil. However, the petroleum system explained above indicate that thermogenic gases and associated oils are the main hydrocarbon resource in the south western Caribbean Sea.
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Large-scale, shallow-water, ocean-bottom seismic project in southern Gulf of Mexico
Authors M. Ortin, A. Vazquez C, A. Raj, J. Diaz de Leon C, F. Fenoglio, M. Salgadoe, D. Derharoutian, O. Zdraveva, M. Sanchez and S. Dominguez GSummarySummary not Available
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Ocean-bottom seismic acquisition, its role in oil exploration and production in Trinidad
Authors M. Ortin and M. SalgadoeSummarySummary not Available
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Geological constrain with structural compartments at PSDM domain tomography
Authors A. Lache, A.B. Ramire and F.A. VivasSummarySummary not Available
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