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Inversion conjointe des propriétés géométriques et hydrauliques d'un modèle stochastique de réservoirs faillés et fracturés

Abstract : Fractured reservoirs are an important part of the oil reserves in the world (Middle East, Gulf of Mexico, etc.). A key point in hydrocarbon recovery in fractured reservoir is to understand the geometry and hydraulic conductivity of the network formed by the fractures. This requires the construction of a reservoir model that integrates all available conceptual knowledge and quantitative data. Through the thesis of Sandra Jenni defended in January 2005, a methodology able to integrate both static and dynamic data has been proposed. The topic of the present thesis is the continuation of the previously described work. First, the geometry of the seismic fault network is characterized using fractal methods and subseismic faults are generated using a stochastic algorithm. The geometry of this discrete fracture network can be modified in order to modify the hydrodynamic behaviour of the reservoir model. An optimization algorithm is used to modify the susbseismic fault positions, leading to the history matching of the reservoir model. Fractal properties are preserved during the deformation process. These different steps are demonstrated on realistic synthetic cases.
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https://pastel.archives-ouvertes.fr/pastel-00657721
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Submitted on : Monday, January 9, 2012 - 10:07:34 AM
Last modification on : Thursday, September 24, 2020 - 4:34:08 PM
Long-term archiving on: : Monday, November 19, 2012 - 1:00:23 PM

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  • HAL Id : pastel-00657721, version 1

Citation

Marius Verscheure. Inversion conjointe des propriétés géométriques et hydrauliques d'un modèle stochastique de réservoirs faillés et fracturés. Géologie appliquée. École Nationale Supérieure des Mines de Paris, 2010. Français. ⟨NNT : 2010ENMP0075⟩. ⟨pastel-00657721⟩

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