Time-lapse seismic without repetition: reaping the benefits from randomized sampling and joint recovery

TitleTime-lapse seismic without repetition: reaping the benefits from randomized sampling and joint recovery
Publication TypeConference
Year of Publication2014
AuthorsFelix Oghenekohwo, Ernie Esser, Felix J. Herrmann
Conference NameEAGE Annual Conference Proceedings
Month06
Keywords4-D seismic, EAGE, joint recovery, time-lapse
Abstract

In the current paradigm of 4-D seismic, guaranteeing repeatability in acquisition and processing of the baseline and monitor surveys ranks highest amongst the technical challenges one faces in detecting time-lapse signals. By using recent insights from the field of compressive sensing, we show that the condition of survey repeatability can be relaxed as long as we carry out a sparsitypromoting program that exploits shared information between the baseline and monitor surveys. By inverting for the baseline and monitor survey as the common "background", we are able to compute high-fidelity 4-D differences from carefully selected synthetic surveys that have different sets of source/receivers missing. This synthetic example is proof of concept of an exciting new approach to randomized 4-D acquisition where time-lapse signal can be computed as long as the survey details, such as source/receiver locations are known afterwards.

URLhttps://www.slim.eos.ubc.ca/Publications/Public/Conferences/EAGE/2014/oghenekohwo2014EAGEtls/oghenekohwo2014EAGEtls.pdf
DOI10.3997/2214-4609.20141478
Presentation

https://www.slim.eos.ubc.ca/Publications/Public/Conferences/EAGE/2014/og...

Citation Keyoghenekohwo2014EAGEtls
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