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Detection of gas in sandstone reservoir using AVO analysis in Prinos basin

Choustoulakis Emmanouil

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URIhttp://purl.tuc.gr/dl/dias/A1E492F0-1353-496C-9047-D00133AC8CC0-
Identifierhttps://doi.org/10.26233/heallink.tuc.61648-
Languageen-
Extent8.44 megabytesen
TitleDetection of gas in sandstone reservoir using AVO analysis in Prinos basinen
CreatorChoustoulakis Emmanouilen
CreatorΧουστουλακης Εμμανουηλel
Contributor [Thesis Supervisor]Vafeidis Antoniosen
Contributor [Thesis Supervisor]Βαφειδης Αντωνιοςel
Contributor [Assistant Instructor]Kritikakis Georgiosen
Contributor [Assistant Instructor]Κρητικακης Γεωργιοςel
Contributor [Committee Member]Varotsis Nikolaosen
Contributor [Committee Member]Βαροτσης Νικολαοςel
Contributor [Committee Member]Christopoulos Dionysiosen
Contributor [Committee Member]Χριστοπουλος Διονυσιοςel
PublisherΠολυτεχνείο Κρήτηςel
PublisherTechnical University of Creteen
Academic UnitTechnical University of Crete::School of Mineral Resources Engineeringen
Academic UnitΠολυτεχνείο Κρήτης::Σχολή Μηχανικών Ορυκτών Πόρωνel
DescriptionSubmitted in partial fulfillment of the requirements for the degree of master of science in petroleum engineeringen
Content SummaryThis thesis was focused on an integrated approach of gas detection in the sandstone reservoir of Prinos oil field, located in the northern Aegean Sea between the island of Thasos and city of Kavala on the mainland. The rock properties variation with depth in the study area, were inferred from suite of quality controlled well seismic logs, while the geological structure of the model was based on an East-West 2D geological plan of Prinos basin. Furthermore, the top layer of the reservoir was considered to be 50% saturated with gas, so, its elastic parameters were accordingly adjusted. The above information were given as input to a synthetic data simulator (Applied Geophysics Laboratory of the Technical University of Crete) in order to build low frequency synthetic seismograms. Additionally, a signal processing graphical interface was build, in order to properly process the synthetic data before the application of the AVO analysis. The GUI can support the whole preprocessing scheme prior to the AVO analysis, from the commissioning of the SGY data, until the generation of the stacked and migrated sections, while the results can be represented graphically at any point. Finally, an analytical AVO analysis flow was adapted for the processed seismic data which successfully detected the presence of gas in the shallow gas saturated layer. The AVO analysis flow included rock physics analysis, intercept-gradient crossplots, far versus near stack attributes, detailed investigation of distance to amplitude analysis and AVO inversion for the elastic parmetres of the model.en
Type of ItemΜεταπτυχιακή Διατριβήel
Type of ItemMaster Thesisen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-23-
Date of Publication2015-
SubjectAVO analysisen
Bibliographic CitationEmmanouil Choustoulakis, "Detection of gas in sandstone reservoir using AVO analysis in Prinos basin", Master Thesis, School of Mineral Resources Engineering, Technical University of Crete, Chania, Greece, 2015en

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