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Titel Spatial analysis of oil reservoirs using DFA of geophysical data
VerfasserIn R. A. Ribeiro, M. V. M. Mata, L. S. Lucena, U. L. Fulco, G. Corso
Medientyp Artikel
Sprache Englisch
ISSN 2198-5634
Digitales Dokument URL
Erschienen In: Nonlinear Processes in Geophysics Discussions ; 1, no. 1 ; Nr. 1, no. 1 (2014-04-30), S.877-893
Datensatznummer 250115095
Publikation (Nr.) Volltext-Dokument vorhandencopernicus.org/npgd-1-877-2014.pdf
 
Zusammenfassung
We employ Detrended Fluctuation Analysis (DFA) technique to investigate spatial properties of an oil reservoir. This reservoir is situated at Bacia de Namorados, RJ, Brazil. The data corresponds to well logs of the following geophysical quantities: sonic, gamma ray, density, porosity and electrical resistivity, measured in 56 wells. We tested the hypothesis of constructing spatial models using data from fluctuation analysis over well logs. To verify this hypothesis we compare the matrix of distances among well logs with the differences among DFA-exponents of geophysical quantities using spatial correlation function and Mantel test. Our data analysis suggests that sonic profile is a good candidate to represent spatial structures. Then, we apply the clustering analysis technique to the sonic profile to identify these spatial patterns. In addition we use the Mantel test to search for correlation among DFA-exponents of geophysical quantities.
 
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