KINE3D: a New 3d Restoration Method Based on a Mixed Approach Linking Geometry and Geomechanics

Moretti, Isabelle; Lepage, F.; Guiton, Martin

doi:10.2516/ogst:2006021

Cited by 52 publications

(39 citation statements)

References 18 publications

(23 reference statements)

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“…In this paper, we present an advanced basin workflow integrating existing innovative tools [13,14]. They represent solutions towards the development of a fully coupled 3D approach of the structural reconstruction with forward simulation.…”

Section: Discussionmentioning

confidence: 99%

“…The structural model is built through successive backward geological deformations which is called restoration. Various surface restoration methods exist [18] and also some volumetric solutions [12,13]. Surface algorithms unfold the layers from the present day structure back to the geometry at deposition time in a single step.…”

Section: Step 2: Basin History From Palinspastic Reconstructionmentioning

confidence: 99%

“…In the following examples, the dynamic mesh is obtained by two different approaches: the first by volumetric restoration [12,13] (A), and the second by geometric modeling [11,21,22] …”

Section: Step 3: Forward Simulation and Fault Descriptionmentioning

confidence: 99%

“…In these cases, studies have demonstrated that a surface or volume restoration method must be applied to obtain a more accurate analysis of the structural deformation. For volume restoration, new approaches have been published using a mechanical or a geometric approach [10][11][12][13]. Both approaches give a kinematic restoration and a time-dependent 3D geometry which can be input to the forward simulator.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Advanced Workflows for Fluid Transfer in Faulted Basins

Thibaut

Jardin

Faille

et al. 2014

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

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Re´sume´-Me´thodologie applique´e aux circulations des fluides dans les bassins faille´s -Une e´tude classique en mode´lisation en bassin en 3D se de´compose en 3 e´tapes : la mode´lisation structurale et en facie`s du bassin a`l'aˆge actuel, la reconstruction structurale par restauration et enfin le couplage de ce mode`le avec le calculateur direct pour une simulation en pression et tempe´rature. Dans cette approche, la de´formation tectonique est repre´sente´e par du cisaillement vertical le long des failles. Les proprie´te´s de faille sont des proprie´te´s de perme´abilite´intrinse`que homoge`ne dans la zone de faille, elles traduisent le caracte`re drain ou barrie`re de la zone de faille. Dans le cas ou`le bassin a subi des de´formations tectoniques importantes, ces simplifications ne traduisent pas assez pre´cise´ment la de´formation tectonique. Ceci a un impact sur l'e´valuation des pressions et la localisation des ressources en hydrocarbures. Depuis quelques anne´es, un nouveau calculateur direct pour la simulation en pression, tempe´rature est de´veloppe´a`l'IFP Energies nouvelles. En paralle`le, des outils logiciels ont e´teḿ is a`disposition sur le marche´pour offrir des sce´narios de restauration 3D. Dans cette publication, nous pre´sentons les premie`res e´tudes couplant ces diffe´rents outils sur des exemples synthe´tiques de complexite´croissante. Les exemples sont des cas inspire´s de situation re´elle et de de´formation tectonique mode´re´e. Les deux cas d'application illustrent les re´sultats de´ja`obtenus et identifient les difficulte´s du couplage.Abstract -Advanced Workflows for Fluid Transfer in Faulted Basins -The traditional 3D basin modeling workflow is made of the following steps: construction of present day basin architecture, reconstruction of the structural evolution through time, together with fluid flow simulation and heat transfers. In this case, the forward simulation is limited to basin architecture, mainly controlled by erosion, sedimentation and vertical compaction. The tectonic deformation is limited to vertical slip along faults. Fault properties are modeled as vertical shear zones along which rock permeability is adjusted to enhance fluid flow or prevent flow to escape. For basins having experienced a more complex tectonic history, this approach is over-simplified. It fails in understanding and representing fluid flow paths due to structural evolution of the basin. This impacts overpressure build-up, and petroleum resources location. Over the past years, a new 3D basin forward code has been developed in IFP Energies nouvelles that is based on a cell centered finite volume discretization which preserves mass on an unstructured grid and describes the various changes in geometry and topology of a basin through time. At the same time, 3D restoration tools based on geomechanical principles of strain minimization were made available that offer a structural scenario at a discrete number of deformation stages of the basin.

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Section: Discussionmentioning

confidence: 99%

Section: Step 2: Basin History From Palinspastic Reconstructionmentioning

confidence: 99%

“…In the following examples, the dynamic mesh is obtained by two different approaches: the first by volumetric restoration [12,13] (A), and the second by geometric modeling [11,21,22] …”

Section: Step 3: Forward Simulation and Fault Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Advanced Workflows for Fluid Transfer in Faulted Basins

Thibaut

Jardin

Faille

et al. 2014

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

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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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