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Karst Systems Controlled Reservoir Heterogeneity
Middle East Oil, Gas and Geosciences Show (MEOS GEO)Abstract Karst systems are key contributors to reservoir heterogeneity in carbonate formations across Abu Dhabi, often exerting significant influence on permeability, porosity, and overall reservoir performance. These karst features, ranging from millimetre-scale vugs to kilometre-wide sinkholes and collapse structures, are frequently ...
A. Noufal, K. Obaid
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2011
Construction of dams and reservoirs in karst is historically known as a very risky task. Inspite of very detailed geophysical investigations and repeated sealing treatments, the possibility for dam failure cannot be eliminated. In the karst environment, with its highly random distribution of dissolution features, some uncertainties always remain.
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Construction of dams and reservoirs in karst is historically known as a very risky task. Inspite of very detailed geophysical investigations and repeated sealing treatments, the possibility for dam failure cannot be eliminated. In the karst environment, with its highly random distribution of dissolution features, some uncertainties always remain.
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Dams and reservoirs in karst? Keep away or accept the challenges
Hydrogeology Journal, 2021The distribution and flow of groundwater in karstified rocks can be extremely complex and not readily predictable, a far from friendly environment for constructing dams and reservoirs. There have been many expensive failures such as unacceptable leakage rates at and around dams, and/or reservoirs that could not be filled to the design levels.
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The Evaluation of Karst in the Non-Matrix Model of Carbonate Reservoir
SPE Annual Caspian Technical Conference & Exhibition, 2016Abstract Karst is developed by the dissolution of soluble rock caused by an active fluid flow. It significantly increases the porosity and permeability compared to the matrix system. Active flowing along the top, bottom and edges of the lenses near the coastline leads to the formation of pores of meters scale because of the dissolution ...
Daniyar Abishev, Akzhan Kassenov
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Quantitative assessment of karst pore volume in carbonate reservoirs
AAPG Bulletin, 2019ABSTRACT Evaluating uncertainty in karst pore volume (KPV) is a current industry challenge that is critical for field development planning and optimizing recovery. Hydrocarbon pore volume in karst can be significant in large super-giant fields.
Fermín Fernández-Ibáñez +2 more
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Geological Society, London, Special Publications
The Upper Jurassic ‘Malm’ carbonates of southern Germany are currently the most developed reservoir for geothermal energy production in Germany. Although many studies have investigated the Malm carbonate reservoir, few studies have focused on the palaeokarst system – despite the fact that the reservoir is frequently referred to as ‘Malmkarst’.
Thorsten Hörbrand +4 more
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The Upper Jurassic ‘Malm’ carbonates of southern Germany are currently the most developed reservoir for geothermal energy production in Germany. Although many studies have investigated the Malm carbonate reservoir, few studies have focused on the palaeokarst system – despite the fact that the reservoir is frequently referred to as ‘Malmkarst’.
Thorsten Hörbrand +4 more
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Characterization and Preservation of Karst Networks in the Carbonate Reservoir Modeling
SPE Annual Technical Conference and Exhibition, 2007AbstractKarstification was developed in the Ordovician carbonate reservoirs resulted from the action of meteoric waters during subaerial exposure. Poor core recovery and borehole imaging logs in permeable sections of the Ordovician carbonate reservoirs lead to poor understanding on karst networks.
Feng Shen, Lixin Qi, Gehua Han
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Journal of Environmental Management
Rapid dam construction is fragmenting river networks and altering phytoplankton communities, yet how dense cascades of different-sized reservoirs in karst rivers affect ecosystems remains poorly quantified. We investigated how reservoir scale and associated hydraulic conditions regulate phytoplankton succession in the upper-middle Wujiang River, a ...
Jiang Wu +9 more
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Rapid dam construction is fragmenting river networks and altering phytoplankton communities, yet how dense cascades of different-sized reservoirs in karst rivers affect ecosystems remains poorly quantified. We investigated how reservoir scale and associated hydraulic conditions regulate phytoplankton succession in the upper-middle Wujiang River, a ...
Jiang Wu +9 more
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An Equivalent Reservoir Description Method for Fault-Karst Carbonate Reservoirs
2022Baohua Chang +4 more
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