@article{fdi:010071202,
  title = {{A} downscaling strategy from {FWI} to microscale reservoir properties from high-resolution images},
  author = {{D}upuy, {B}. and {A}snaashari, {A}. and {B}rossier, {R}. and {G}arambois, {S}. and {M}{\'e}tivier, {L}. and {R}ibodetti, {A}lessandra and {V}irieux, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}xtracting detailed earth information from an ensemble of seismic traces is a challenge facing full-waveform inversion. {S}o far, success on synthetic and real data has been accomplished primarily for the twin purposes of complex structural imaging and geologic interpretation. {A}n ongoing issue for the seismic-imaging community, in addition to building high-resolution images, is the reliable extraction of acoustic and shear velocities, anisotropic parameters, quality factors, and density. {S}uch extractions, performed at the seismic resolution scale, should help greatly with quantitative interpretation and estimation of rock properties. {A} step toward this goal is described here. {A} generic rock-physics model is assumed, which upscales microscale rock-physics properties to mesoscale (effective-medium) poroelastic quantities to be recovered from macroscale estimates of seismic attributes. {I}t is shown on simple synthetic examples that quantitative multiparameter reconstruction, when it is possible, can reduce ambiguities in mesoscale parameter estimation dramatically, using a semiglobal search. {S}uccessful estimation of these effective-medium quantities will narrow the range of possible rock-physics estimations to be considered for seismic imaging target zones. {F}or example, estimating the {P}-wave quality factor along with {P}-wave velocity from full-waveform inversion is shown to change the estimation of mesoscale parameters significantly, assuming that the upscaling of the rock-physics model and the recovered macroscale parameters are well constrained. {I}n addition, shear-wave information is shown to be crucial for pressure-saturation discrimination. {T}he inferred information at the reservoir level, resulting from full-waveform inversion and subsequent mesoscale estimation, can be useful for reservoir characterization.},
  keywords = {},
  booktitle = {},
  journal = {{L}eading {E}dge},
  volume = {35},
  numero = {2},
  pages = {146--150},
  ISSN = {1070-485{X}},
  year = {2016},
  DOI = {10.1190/tle35020146.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071202},
}