... criteria to describe fault shadow areas. To improve the accuracy of depth prediction in fault shadow areas, we firstly establish 3D model based on the statistical parameters of the oilfield, and then calculate the error of target horizon caused by the fault shadow based on the forward simulation, finally...

... full forward simulations. The increasing availability of high-performance computers help us to address this high computational cost problem via the use of numerical techniques that are theoretically favorable, yet have been considered to be computationally demanding. Therefore, edge finite elements...

...Checkpointing-assisted Reverse Forward Simulation: an optimal recomputation method for FWI and RTM Pengliang Yang , Romain Brossier, Ludovic Metivier, Jean Virieux, Univ. Grenoble Alpes, France. SUMMARY 3D implementations of reverse time migration and full wave- form inversion requires efficient...

...-wave velocity sensitivity kernel inversion result forward simulation mdefwi reservoir characterization gradient time forward simulation 2D frequency-domain elastic waveform inversion using matrix decomposition method Minao Sun* , Liangguo Dong, Yuzhu Liu, Yuwei Wang, School of Ocean and Earth...

.... As such, we require a set of tools that allow a geophysicists to easily explore various model dimensionalities, such as 1D, 2D, and 3D, in the EM in- version. In this study, we suggest a mapping methodology that transforms the inversion model to a physical property for use in the forward simulations. Using...

...-consuming) of the forward wavefields. Our forward simulation tests show that the GPU’s supercomputing effect can be fully exploited with this strategy. In addition, we perform a three-parameter simultaneous inversion of P-, S-wave velocities and density. The favorable inversion results verify that our...

... that employs multilevel forward simulations. Multilevel forward simulations are derived using Generalized Multiscale Finite Element Methods that we have proposed earlier (Efendiev et al., 2013a; Chung et al., 2013). Our overall Bayesian inversion approach provides a substantial speed-up both in the process...

... ABSTRACT Algorithms that temporally cross correlate a forward simulation state with an adjoint simulation state need to be able to access each time step of a forward simulation in time-reverse order to have them available for the correlation step when the adjoint computation propagates its...

... upstream oil & gas effective elastic property heterogeneous media time reverse characterization simulation imaging condition geophysics seg seg denver 2010 maximum particle displacement reservoir characterization time reverse modeling forward simulation saenger amplitude...