Final Technical Report DE-FG02-99ER14933 Inversion of multicomponent seismic data and rock physics interpretation

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An important accomplishment was to understand the seismic velocity anisotropy resulting from the combined roles of depositional stratification and stress in unconsolidated sands. The report presents an experimental study of velocity anisotropy in unconsolidated sands at measured compressive stresses up to 40 bars, which correspond to the first hundred meters of the subsurface. Two types of velocity anisotropy are considered, that due to intrinsic textural anisotropy, and that due to stress anisotropy. We found that sand samples display a bi-linear dependence of velocity anisotropy with stress anisotropy. There exists a transition stress beyond which the stress-induced anisotropy outweighs the intrinsic ... continued below

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Mavko, G. March 15, 2006.

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An important accomplishment was to understand the seismic velocity anisotropy resulting from the combined roles of depositional stratification and stress in unconsolidated sands. The report presents an experimental study of velocity anisotropy in unconsolidated sands at measured compressive stresses up to 40 bars, which correspond to the first hundred meters of the subsurface. Two types of velocity anisotropy are considered, that due to intrinsic textural anisotropy, and that due to stress anisotropy. We found that sand samples display a bi-linear dependence of velocity anisotropy with stress anisotropy. There exists a transition stress beyond which the stress-induced anisotropy outweighs the intrinsic anisotropy for three different sands.

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3.3Mb

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  • Report No.: DOE/ER14933/Final
  • Grant Number: FG02-99ER14933
  • DOI: 10.2172/877424 | External Link
  • Office of Scientific & Technical Information Report Number: 877424
  • Archival Resource Key: ark:/67531/metadc876727

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  • March 15, 2006

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 4, 2016, 2:02 p.m.

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Mavko, G. Final Technical Report DE-FG02-99ER14933 Inversion of multicomponent seismic data and rock physics interpretation, report, March 15, 2006; United States. (digital.library.unt.edu/ark:/67531/metadc876727/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.