Integrating structural geology and petroleum systems modeling – A pilot project from Bolivia's fold and thrust belt

Baur, Friedemann; Benedetto, Matías Di; Fuchs, Thomas J.; Lampe, Carolyn; Sciamanna, Simone

doi:10.1016/j.marpetgeo.2009.01.004

Cited by 18 publications

(15 citation statements)

References 17 publications

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“…"Paleo Stepping" approach presented by Baur et al (2009) proposes to discretise tectonic episodes in a set of successive static grids representing successive deformation stages. At the breakpoint between two stages, the physical values relevant to forward simulation such as pressure and temperature are instantaneously transferred from one grid to the next one.…”

Section: Structurally Complex Basins: An Updated Modeling Workflow Inmentioning

confidence: 99%

“…It is discretised by a vertical pillar 2D grid which can handle, during a stratigraphic event, deposition, erosion, compaction, but also other continuous deformations which are determined during the restoration stage, as long as they keep the pillars of the grid vertical (translation, vertical shear). Introducing a more general decomposition of the time interval into "paleo steps" instead of "event steps", Baur et al (2009) describes an innovative technique designed to handle 3D basin in complex geological settings. The corresponding simulator takes the complete geometry of the basin at each paleo-step as an input, and directly jumps…”

Section: Faille Et Al / Modeling Fluid Flow In Faulted Basinsmentioning

confidence: 99%

“…As in the approach of (Baur et al, 2009), the evolving grid concept relies on a workflow where input geometries are given once for all by the restoration process. Since restoration usually provides a quite rough geometry evolution and compaction description, we propose a decoupling between the porosity evolution and the geometry evolution.…”

Section: A New Evolving Grid Conceptmentioning

confidence: 99%

“…Two approaches were proposed during the last decade to simulate petroleum systems in these faulted contexts: Ceres (Schneider et al, 2002), and Tecklink (Baur et al, 2009). Both approaches are limited to vertical shear deformation of each fault-delimited structural block, the structural blocks being allowed to slip against each other.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Structurally Complex Basins: An Updated Modeling Workflow Inmentioning

confidence: 99%

Section: Faille Et Al / Modeling Fluid Flow In Faulted Basinsmentioning

confidence: 99%

Section: A New Evolving Grid Conceptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling Fluid Flow in Faulted Basins

Faille

Thibaut

Cacas

et al. 2014

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

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“…Since 2000, 2D software tools like Thrustpack [1], Ceres2D [2] or TecLink2D [3,4] exist that consider evolving geometry through geological time coupled with reconstruction of timing of hydrocarbon generation and expulsion. The basin geometry evolves through time as a result of sedimentation, erosion, salt or mud creeping and block displacement along faults.…”

Section: Introductionmentioning

confidence: 99%

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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