A graph-based method to detect and correct invalid features in subsurface structural models
| Autor: | Jeanne Pellerin, Guillaume Caumon, Pierre Anquez |
|---|---|
| Přispěvatelé: | GeoRessources, Institut national des sciences de l'Univers (INSU - CNRS)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Université Catholique de Louvain = Catholic University of Louvain (UCL) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Computer science business.industry 010401 analytical chemistry Graph based Pattern recognition 02 engineering and technology 01 natural sciences [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation 0104 chemical sciences 020901 industrial engineering & automation Artificial intelligence business [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | 80th EAGE Conference and Exhibition 2018 80th EAGE Conference & Exhibition 2018 80th EAGE Conference & Exhibition 2018, Jun 2018, Copenhague, Denmark. ⟨10.3997/2214-4609.201801233⟩ |
| DOI: | 10.3997/2214-4609.201801233⟩ |
| Popis: | International audience; We introduce a method to process boundary defined geological models and ease their meshing. Our method detects and fixes geological model invalid features, (e.g. small gaps breaking model watertightness) and complex features (e.g. thin layers, unconformities and small fault throws) which constrain mesh element resolutions and angles making mesh generation challenging. These features are modeled by a graph that provides a formal framework to operate and correct the input model. The possible operations to fix the geometrical and topological issues are equivalent to graph elementary operations. Our method then first operates on the graph aiming at removing all the edges representing invalid features. The second step is to account for these topological changes in the geometrical model. The procedure is illustrated on an invalid 2D subsurface cross-section characterized by many small gaps and several intersections between the faults and the horizons. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|