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Abstract

The time-lapse OBN (Ocean Bottom Node) seismic data acquired by Shell in 2007 and 2010 in the Mars field, is a true wide azimuth marine dataset that provides a good opportunity to study the azimuth and offset dependence of time-lapse depth-shifts and amplitudes. The goals of such analysis are to gain a better understanding of the response of seismic waves to geomechanical changes happening in the field and to improve our ability to discriminate between pressure and saturation signals using the time-lapse AVO response. In this paper we compare the conventional time-lapse AVO analysis with an alternative method based on the combined use of time-lapse amplitudes and time-lapse depth-shifts to separate pressure and fluid-related changes on the Mars time-lapse OBN data.

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/content/papers/10.3997/2214-4609.20148813
2012-06-04
2022-01-27
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20148813
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