Dubinskogeološki odnosi i bazensko modeliranje (2D) šire okolice polja Števkovica

master's thesis

• Title: Dubinskogeološki odnosi i bazensko modeliranje (2D) šire okolice polja Števkovica : diplomski rad
• Title (english): Subsurface geological relations and 2D basin modeling of the surroundings of Števkovica field : master's thesis
• Author: Petra Slavinić
• Mentor: Josipa Velić (mentor)
• Committee member: Josipa Velić
• Committee member: Tomislav Malvić
• Committee member: Bruno Saftić
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geology and Geological Engineering); Zagreb
• Defense date and country: 2014-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Geology and Paleontology

Abstract

U radu su detaljno proučeni strukturno-stratigrafski i naftnogeološki odnosi naftnog polja Števkovica te njegove šire okolice. Također je pomno istražena i litologija donjeg i srednjeg miocena iz dostupnih opisa jezgara s ciljem što bolje izvedbe bazenskog modeliranja. Nužno je spomenuti da su EK-markeri i reperi granice na temelju kojih su razgraničeni pojedini članovi i formacije. Radi boljeg pregleda navedenog, izrađeni su korelacijski profili. Nakon toga pristupilo se detaljnoj razradi stratigrafije istraživanog područja, definiranju i procjeni elemenata naftnog sustava te definiranju graničnih uvjeta koji su od izuzetne važnosti za bazensko modeliranje. Kalibracija navedenih podataka izvršena je na temelju vrijednosti temperature te vrijednostima vitrinitne refleksije reprezentativnim za taj dio Panonskoga bazena. Nakon svih ulaznih podataka izvršena je simulacija modela te su dobiveni izlazni rezultati ukazali na povijest zalijeganja bazena, akumulacije ugljikovodika, moguće putove migracije, vrijeme kada je došlo do stvaranja zamki unutar istraživanog područja te kritični trenutak kada je došlo do ekspulzije. Dobivene akumulacije ugljikovodika su relativno male čemu je glavni razlog ograničavajući broj podataka s kojima se raspolagalo (prostorni raspored litološkog sastava, rasjedi). Kada bi se povećao broj relevantnih ulaznih podataka, poglavito podataka za kalibraciju, izlazni model bi bio mnogo precizniji.

Abstract (english)

Abstract: Structural development, petroleum system elements, stratigraphy and geochemistry of the source rocks have been detaily studied for the Števkovica oil field and its soroundings. Improvements in basin modeling were achieved through the detailed study of lithologic composition of the Lower and Middle Miocene rocks. Formations and their members have been determined based on the regional well logging markers and key beds. Also, the correlation profiles were constructed for a better overview of the studied area. Calibration data, which included temperature and vitrinite reflectance values were selected from previous published works. This complex dataset was used for simulation of the geological model. Output data showed burial history of the part of the basin, possible hydrocarbon accumulations, possible migration paths and the critical moment when expulsion occurred. PetroMod showed small hydrocarbon deposits but given the fact that fault systems had been neglected along with spatial variations of lithology of some members, the basin modelling outcome isn’t surprising. If a larger number of input data were available, especially the calibration data, the outcome of the model would be different.

• Keywords: bazensko modeliranje; polje Števkovica; naftnogeološki odnosi; Dravska depresija; Hrvatska
• Keywords (english): basin modeling; field Števkovica; petroleum system elements; Drava Depression; Croatia
• Language: croatian
• URN:NBN: urn:nbn:hr:169:290696
• Study programme: Title: Geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2016-01-12 12:09:27