Now showing items 1-17 of 17

    • 3D Elastic Full Waveform Inversion - On Land Study case 

      Kormann, Jean; Marti, David; Rodríguez, Juan E.; Marzan, Ignacio; Gutiérrez, Natalia; Ferrer, Miguel; Hanzich, Mauricio; de la Puente, Josep; Carbonell, Ramon; Cela, Jose M.; Fernández, S. (European Association of Geoscientists and Engineers, 2016-05-31)
      Conference report
      Open Access
      Full Waveform Inversion is one of the most advanced processing methods that is recently reaching a mature state after years of solving theoretical and technical issues such as the non-uniqueness of the solution and harnessing ...
    • 3D Viscoelastic Anisotropic Seismic Modeling with High-Order Mimetic Finite Differences 

      Ferrer, Miguel; de la Puente, Josep; Farrés, Albert; Castillo, José E. (Springer, 2015)
      Part of book or chapter of book
      Open Access
      We present a scheme to solve three-dimensional viscoelastic anisotropic wave propagation on structured staggered grids. The scheme uses a fully-staggered grid (FSG) or Lebedev grid (Lebedev, J Sov Comput Math Math Phys ...
    • A parallel finite-element method for three-dimensional controlled-source electromagnetic forward modelling 

      Puzyrev, Vladimir; Koldan, Jelena; de la Puente, Josep; Houzeaux, Guillaume; Vázquez, Mariano; Cela, José M. (Wiley-Blackwell, 2013-02-18)
      Article
      Open Access
      We present a nodal finite-element method that can be used to compute in parallel highly accurate solutions for 3-D controlled-source electromagnetic forward modeling problems in anisotropic media. Secondary coupled-potential ...
    • A stochastic rupture earthquake code based on the fiber bundle model (TREMOL v0.1): application to Mexican subduction earthquakes 

      Monterrubio-Velasco, Marisol; Rodríguez-Pérez, Quetzalcóatl; Zúñiga, Ramón; Scholz, Doreen; Aguilar-Méléndez, Armando; de la Puente, Josep (European Geosciences Union (EGU), 2019-05-08)
      Article
      Open Access
      In general terms, earthquakes are the result of brittle failure within the heterogeneous crust of the Earth. However, the rupture process of a heterogeneous material is a complex physical problem that is difficult to model ...
    • Acceleration strategies for elastic full waveform inversion workflows in 2D and 3D 

      Kormann, Jean; Rodríguez, Juan E.; Ferrer, Miguel; Farrés, Albert; Gutiérrez, Natalia; de la Puente, Josep; Hanzich, Mauricio; Cela, José M. (Springer International Publishing, 2017-02-01)
      Article
      Open Access
      Full waveform inversion (FWI) is one of the most challenging procedures to obtain quantitative information of the subsurface. For elastic inversions, when both compressional and shear velocities have to be inverted, the ...
    • Algebraic multigrid preconditioning within parallel finite-element solvers for 3-D electromagnetic modelling problems in geophysics 

      Koldan, Jelena; Puzyrev, Vladimir; de la Puente, Josep; Houzeaux, Guillaume; Cela, José M. (Wiley-Blackwell, 2014-06)
      Article
      Open Access
      We present an elaborate preconditioning scheme for Krylov subspace methods which has been developed to improve the performance and reduce the execution time of parallel node-based finite-element solvers for three-dimensional ...
    • Assessment of edge-based finite element technique for geophysical electromagnetic problems: efficiency, accuracy and reliability 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (International Center for Numerical Methods in Engineering (CIMNE), 2015-04)
      Conference lecture
      Open Access
      In Finite Element Methods for solving electromagnetic field problems, the use of Edge Elements has become very popular. In fact, Edge Elements are often said to be a cure to many difficulties that are encountered (particularly ...
    • Edge-based electric field formulation in 3D CSEM simulations: A parallel approach 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (IEEE, 2015-10)
      Conference report
      Open Access
      This paper presents a parallel computing scheme for the data computation that arise when applying one of the most popular electromagnetic methods in exploration geophysics, namely, controlled-source electromagnetic (CSEM). ...
    • Edge-based parallel framework for the simulation of 3d CSEM surveys 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2016)
      Conference lecture
      Open Access
    • Edge-elements for geophysical electromagnetic problems: a new implementation challenge 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (2015-05)
      Conference lecture
      Open Access
    • Elastic Full Waveform Inversion (FWI) of reflection data with a phase misfit function 

      Kormann, Jean; Rodríguez, Juan E.; Ferrer, Miguel; Gutiérrez, Natalia; de la Puente, Josep; Hanzich, Mauricio; Cela, José M. (Springer International Publishing, 2016-04-08)
      Part of book or chapter of book
      Open Access
      Full Waveform Inversion of elastic dataset is challenging due to the complexity introduced by free-surface effects or P-S wave conversions among others. In this context, large offsets are preferred for inversion because ...
    • Improving edge finite element assembly for geophysical electromagnetic modelling on shared-memory architectures 

      Castillo-Reyes, Octavio; de la Puente, Josep; Cela, Jose M. (IEE, 2016-12-12)
      Conference report
      Open Access
      This work presents a set of node-level optimizations to perform the assembly of edge finite element matrices that arise in 3D geophysical electromagnetic modelling on shared-memory architectures. Firstly, we describe the ...
    • Mimetic Operators for Seismic Exploration 

      de la Puente, Josep; Rojas, Otilio; Ferrer, Miguel; Kormann, Jean (European Association of Geoscientists and Engineers, 2016-05-31)
      Conference report
      Open Access
      Mimetic operators are a kind of discrete operators which, on staggered grids, can accomplish "mimetic" properties analogous to their continuous counterparts. Furthermore, they can attain identical convergence order everywhere ...
    • Parallel and numerical issues of the edge finite element method for 3D controlled-source electromagnetic surveys 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (IEEE, 2015-10)
      Conference report
      Open Access
      This paper deals with the most relevant parallel and numerical issues that arise when applying the Edge Element Method in the solution of electromagnetic problems in exploration geophysics. In this sense, in recent years ...
    • Three-Dimensional CSEM Modelling on Unstructured Tetrahedral Meshes Using Edge Finite Elements 

      Castillo-Reyes, Octavio; de la Puente, Josep; Cela, Jose M. (Springer International Publishing, 2017-04-29)
      Conference lecture
      Open Access
      The last decade has been a period of rapid growth for electromagnetic methods (EM) in geophysics, mostly because of their industrial adoption. In particular, the marine controlled-source electromagnetic method (CSEM) has ...
    • Toward an automatic full-wave inversion: Synthetic study cases 

      Kormann, Jean; Rodriguez, Juan E.; Gutiérrez, Natalia; Ferrer, Miguel; Rojas, Otilio; de la Puente, Josep; Hanzich, Mauricio; Cela, Jose M. (Society of Exploration Geophysicists, 2016-12)
      Article
      Open Access
      Full-waveform inversion (FWI) in seismic scenarios continues to be a complex procedure for subsurface imaging that might require extensive human interaction in terms of model setup, constraints, and data preconditioning. ...
    • Wavefield compression for adjoint methods in full-waveform inversion 

      Boehm, Christian; Hanzich, Mauricio; de la Puente, Josep; Fichtner, Andreas (Society of Exploration Geophysicists, 2016-09-13)
      Article
      Open Access
      Adjoint methods are a key ingredient of gradient-based full-waveform inversion schemes. While being conceptually elegant, they face the challenge of massive memory requirements caused by the opposite time directions of ...