Recent low frequency passive seismic experiments in Abu Dhabi

M. Y. Ali, K. A. Berteussen, J. Small, B. T. Anjana, B. Barkat, O. Pahlevi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Low frequency passive seismic experiments using array of 3-component broadband instruments have been conducted over two sites in Abu Dhabi, over a producing oilfield and around deep exploration dry well, to understand the characteristics and origins of microtremor signals (-2.5-3.0 Hz) that has been reported above several hydrocarbon reservoirs in Abu Dhabi. The results of the experiments show that a narrow-band of microtremor signal is present in both sites. Variations in the character of the signals recorded during day and night were observed. The analyses of the data indicate that the observed signals are probably caused by surface waves which have been modified by metrological and cultural noises particularly at higher frequencies. The V/H spectral ratios of the data from both experiments show a peak at -2.5-3 Hz. The analyses of the data suggest that the V/H spectral ratios do not depend of presence or lack of hydrocarbons. Therefore, the method should not be used as a direct hydrocarbon indicator. Furthermore, the analyses show no direct evidence that the earthquakes can stimulate the hydrocarbon reservoir to modified the spectral amplitude of the microtremor signal.

Original languageBritish English
Title of host publication71st European Association of Geoscientists and Engineers Conference and Exhibition 2009
Subtitle of host publicationBalancing Global Resources. Incorporating SPE EUROPEC 2009
Pages2147-2151
Number of pages5
StatePublished - 2009
Event71st European Association of Geoscientists and Engineers Conference and Exhibition 2009 - Amsterdam, Netherlands
Duration: 8 Jun 200911 Jun 2009

Publication series

Name71st European Association of Geoscientists and Engineers Conference and Exhibition 2009: Balancing Global Resources. Incorporating SPE EUROPEC 2009
Volume4

Conference

Conference71st European Association of Geoscientists and Engineers Conference and Exhibition 2009
Country/TerritoryNetherlands
CityAmsterdam
Period8/06/0911/06/09

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