Chronologic modeling of faulted and fractured reservoirs using geomechanically based restoration: Technique and industry applications

Maerten, Laurent; Maerten, Frantz

doi:10.1306/02240605116

Cited by 134 publications

(73 citation statements)

References 49 publications

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“…2/ Geomechanical reconstruction of paleo-geometries A 3D restoration was then performed with the strain-based decompaction technology using geomechanical properties of the assigned lithologies. This allows sliding movement along faults for a more realistic layer geometry and thickness variation (Maerten and Maerten, 2006). 3/ Construction of the structurally reconstructed petroleum systems model and migration simulation The paleo-models from the reconstruction were incorporated in the master model with a fault displacement analysis to infer hydrocarbon flow paths through time.…”

Section: Methods and Resultsmentioning

confidence: 99%

3D Petroleum Systems Model using Restored Paleo-Geometries

Castagnac

Mavridou

Badalini³

et al. 2014

Proceedings

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SUMMARY3D petroleum systems modeling is an integrated approach that includes thermogenic source rock maturation, hydrocarbon generation timing, migration and trap formation (Hantschel and Kauerauf, 2009). Evaluating the key elements during the charge and trap forming processes is of fundamental importance when assessing the risk of a working petroleum system. Parameters which affect the petroleum system, such as source rock properties, trap system, and migration flow path through carrier rocks and fault geometries directly depend on the tectonic history of the basin. Therefore, addressing the structural evolution of the petroleum system's geometry and using appropriate paleo-geometries is a key requirement to be able to adequately evaluate the risks. There are two ways to address the forward modeling: backstripping and paleo-reconstruction. The backstripping approach is a vertical shifting process in which a model is recompacted layer by layer. With paleo-reconstruction, a model is described by paleo-sections based on geomechanical restoration.

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Section: Methods and Resultsmentioning

confidence: 99%

3D Petroleum Systems Model using Restored Paleo-Geometries

Castagnac

Mavridou

Badalini³

et al. 2014

Proceedings

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“…Most of them are 2D and operate on vertical cross-sections, as 2D-move (Gibbs, 1984), Locace and Kine3D2-XS (Moretti and Larre`re, 1989), Lithotect (Geiser et al, 1988), Dynel (Maerten and Maerten, 2006), and Geosec (Kligfield et al, 1986). They provide the user with tools to interactively apply a complex deformation field to a given cross-section described as a set of horizons and faults.…”

Section: Structurally Complex Basins: An Updated Modeling Workflow Inmentioning

confidence: 99%

Modeling Fluid Flow in Faulted Basins

Faille

Thibaut

Cacas

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Geosciences Numerical Methods Modélisation numérique en géosciencesOil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 69 (2014), No. 4, Copyright © 2014, IFP Energies nouvelles > EditorialJ. E. Roberts > Modeling Fractures in a Poro-Elastic MediumUn modèle de fracture dans un milieu poro-élastique > Modeling Fluid Flow in Faulted BasinsModélisation des transferts fluides dans les bassins faillés Re´sume´-Mode´lisation des transferts fluides dans les bassins faille´s -Cet article pre´sente un nouveau simulateur de bassin spe´cialement conc¸u pour mieux prendre en compte l'impact des failles sur l'e´coulement. Il simule les e´coulements, les transferts thermiques et la ge´ne´ration des hydrocarbures. Compare´aux simulateurs de bassins classiques, il utilise un concept innovant de maillage e´volutif suffisamment flexible pour suivre les de´formations d'un bassin en contexte tectonique complexe. Le maillage suit les se´diments et se de´forme continument pour suivre la se´dimentation, la compaction et les de´formations cine´matiques. Bien qu'il soit organise´suivant les couches stratigraphiques, le maillage est globalement non-structure´. Il peut contenir des mailles de type varie´telles que des hexae`dres, des te´trae`dres, des pyramides, des prismes ou des hexae`dres de´ge´ne´re´s. Les failles y sont repre´sente´es sous la forme de couple de surfaces de bord interne, qui peuvent glisser l'une par rapport a`l'autre. Le maillage est donc non conforme a`travers les failles. Diffe´rents mode`les d'e´coulement sont propose´s pour simuler le comportement des failles, allant des failles parfaitement imperme´ables aux failles conductrices. Le calculateur est base´sur une discre´tisation de type volumes finis centre´s sur les mailles qui est bien adapte´e aux e´quations de conservation. Le potentiel de ce nouveau simulateur est illustre´sur un cas semi-synthe´tique.Abstract -Modeling Fluid Flow in Faulted Basins -This paper presents a basin simulator designed to better take faults into account, either as conduits or as barriers to fluid flow. It computes hydrocarbon generation, fluid flow and heat transfer on the 4D (space and time) geometry obtained by 3D volume restoration. Contrary to classical basin simulators, this calculator does not require a structured mesh based on vertical pillars nor a multi-block structure associated to the fault network. The mesh follows the sediments during the evolution of the basin. It deforms continuously with respect to time to account for sedimentation, erosion, compaction and kinematic displacements. The simulation domain is structured in layers, in order to handle properly the corresponding heterogeneities and to follow the sedimentation processes (thickening of the layers). In each layer, the mesh is unstructured: it may include several types of cells such as tetrahedra, hexahedra, pyramid, prism, etc. However, a mesh composed mainly of hexahedra is preferred as they are well suited to the layered structure of the basin. Faults are handled as internal boundaries acros...

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“…When it comes to assessing the likelihood not of a surface but of the whole structural model, simple apparent or normal thickness of sedimentary formations may be used. Another more rigorous but more difficult approach is to restore the structural model into depositional state (Maerten and Maerten 2006;Moretti 2008;Muron 2005;Rouby et al 2000); strain analysis can then be used to judge on the model likelihood.…”

Section: Geometric Constraintsmentioning

confidence: 99%

“…In addition to these two directions, we believe the next frontier of structural modeling is the creation of several structural models instead of one, all equally honoring available data at their specific scale (Caumon et al 2007;Holden et al 2003). Such a set of realizations could be filtered by validation codes such as balanced restoration and geomechanical modeling (Maerten and Maerten 2006;Moretti 2008;Muron 2005). Another avenue for further progresses also covers assimilation of complex data such as reservoir production history for discarding possible structural interpretations (Suzuki et al 2008;Tarantola 2006).…”

Section: Recent and Ongoing Researchmentioning

confidence: 99%

Surface-Based 3D Modeling of Geological Structures

et al. 2009

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Building a 3D geological model from field and subsurface data is a typical task in geological studies involving natural resource evaluation and hazard assessment. However, there is quite often a gap between research papers presenting case studies or specific innovations in 3D modeling and the objectives of a typical class in 3D structural modeling, as more and more is implemented at universities. In this paper, we present general procedures and guidelines to effectively build a structural model made of faults and horizons from typical sparse data. Then we describe a typical 3D structural modeling workflow based on triangulated surfaces. Our goal is not to replace software user guides, but to provide key concepts, principles, and procedures to be applied during geomodeling tasks, with a specific focus on quality control. Electronic supplementary materialThe online version of this article (http://dx

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Chronologic modeling of faulted and fractured reservoirs using geomechanically based restoration: Technique and industry applications

Cited by 134 publications

References 49 publications

3D Petroleum Systems Model using Restored Paleo-Geometries

3D Petroleum Systems Model using Restored Paleo-Geometries

Modeling Fluid Flow in Faulted Basins

Surface-Based 3D Modeling of Geological Structures

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