Effects of the near field on source-independent q estimation

Title

Effects of the near field on source-independent q estimation

 Author

Shigapov, R.
Kashtan, B.
Droujinine, A.
Mulder, W.A.

Faculty

Civil Engineering and Geosciences

 Department

Geoscience & Engineering

 Date

2013-12-31

 Abstract

We consider the problem of Q estimation from microseismic and from perforation shot data. Assuming that the source wavelet is not well known, we focused on the spectral ratio method and on source-independent viscoelastic full waveform inversion. We derived 3-D near-field approximations of monopole and dipole Green's tensors in a homogeneous viscoelastic medium. We show that the spectral ratio method is not applicable in the near-field region, but a two-step source-independent viscoelastic full waveform inversion strategy applied to synthetic data can first recover the purely elastic velocities and then provide an attenuation estimate

 To reference this document use:

http://resolver.tudelft.nl/uuid:d941b57e-9891-4e16-a73b-96c87def6e6e

 Publisher

EAGE

 Source

EAGE Workshop on Seismic Attenuation, Singapore (Singapore) 28-30 Oct. 2013

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) 2013 The Authors
Files
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