Receiver function decomposition of OBC data: theory

Edme, Pascal and Singh, Satish C. (2009) Receiver function decomposition of OBC data: theory. Geophysical Journal International, 177 (3). pp. 966-977. ISSN 1365-246X

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Abstract

This paper deals with theoretical aspects of wavefield decomposition of Ocean Bottom Cable (OBC) data in the τ–p domain, considering a horizontally layered medium. We present both the acoustic decomposition and elastic decomposition procedures in a simple and compatible way. Acoustic decomposition aims at estimating the primary upgoing P wavefield just above the ocean-bottom, whereas elastic decomposition aims at estimating the primary upgoing P and S wavefields just below the ocean-bottom. Specific issues due to the interference phenomena at the receiver level are considered. Our motivation is to introduce the two-step decomposition scheme called ‘receiver function’ (RF) decomposition that aims at determining the primary upgoing P and S wavefields (RFP and RFS, free of any water layer multiples). We show that elastic decomposition is a necessary step (acting as pre-conditioning) before applying the multiple removal step by predictive deconvolution. We show the applicability of our algorithm on a synthetic data example.

Item Type: Article
Additional Information: cml Schlumberger
Uncontrolled Keywords: 2009AREP;
Subjects: 02 - Geodynamics, Geophysics and Tectonics
Divisions: 02 - Geodynamics, Geophysics and Tectonics
Journal or Publication Title: Geophysical Journal International
Volume: 177
Page Range: pp. 966-977
Depositing User: Sarah Humbert
Date Deposited: 15 Dec 2011 16:46
Last Modified: 23 Jul 2013 10:03
URI: http://eprints.esc.cam.ac.uk/id/eprint/2287

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