Seizmička interpretacija ležišta p1 i p8 naftno-plinskog polja Strušca u programskom paketu Petrelu

master's thesis

• Title: Seizmička interpretacija ležišta p1 i p8 naftno-plinskog polja Strušca u programskom paketu Petrelu : diplomski rad
• Title (english): Seismic interpretation p1 and p8 reservoirs of oil-gas field Stružec in softwere package Petrel : master’s thesis
• Author: Petar Kavelj
• Mentor: Franjo Šumanovac (mentor)
• Committee member: Franjo Šumanovac
• Committee member: Jasna Orešković
• Committee member: Ivan Dragičević
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geophysical Exploration and Mine Surveying); Zagreb
• Defense date and country: 2015-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Geology and Paleontology

Abstract

U ovom diplomskom radu načinjena je trodimenzionalna seizmička interpretacija naftno-plinskog polja Strušca. Cilj ovog rada je prikazati interpretaciju karakterističnih horizonata p1 i p8, EK-markera λ i Rφ, interpretaciju rasjeda te strukturne karte u programskom paketu Petrelu. Radi pouzdanije interpretacije načinjen je sintetski seizmogram za bušotinu O-134 kako bi se točnije povezali seizmički podaci s mjerenim podacima u bušotinama. Polje Stružec predstavlja brahiantiklinala dužine oko 6 km i široke oko 1,5 km. Geološke značajke ležišta p1 predstavlja pješčenjak donjeg ponta, dok za ležište p8 predstavlja pješčenjak gornjeg ponta. Interpretacija rasjeda je većinom rađena na klasičnim seizmičkim profilima. Rasjedi su svrstani u dvije skupine: reversnih, pružanja istok-zapad i normalnih, generalnog pružanja sjever-jug. Korišteni su seizmički atributi varijance i kaosa kod interpretacije rasjeda i seizmički atribut kosinus faze kod interpretacije horizonata i EK-markera. Korištenjem seizmičkih atributa dobivena je pouzdanija interpretacija horizonata i rasjeda kod tektonski vrlo razlomljenih zona radi jasnijeg definiranja struktura u podzemlju. Brahiantiklinala je prikazana strukturnim kartama u vremenskom i dubinskom mjerilu po oba horizonta i EK-markera. Strukturni oblici i rasjedi se mogu pratiti na svim horizontima te se izgled strukturnih karata vrlo malo mijenja.

Abstract (english)

Abstract: Three-dimensional seismic interpretation of Stružec oil-natural gas field was made. Interpretations of characteristic horizons p1 and p8, e-log marker λ and Rφ, interpretation of a fault, and structural maps in Petrel software package. For a more reliable interpretation, a synthetic seismogram of the well O-134 was made in order to more precisely connect seismic data with the data measured in the wells. Stružec field is a brahianticline about 6 km long and 1,5 km wide. Geologically the reservoir p1 is characterised by sandstone of lower Pontian, while the reservoir p8 is characterised by sandstone of upper Pontian. Interpretation of the faults was mostly done with classic seismic profiles. Faults were classified into two groups: reverse, east-west oriented faults; and normal, generally north-south oriented faults. Seismic attributes of variance and chaos were used for interpreting the faults, and seismic attribute of cosine phase was used for interpreting horizons and e-log markers. By using seismic attributes, a more reliable interpretation of horizons and faults was obtained in tectonically very fractured zones. Brahianticline is shown with structural maps in time and depth scales along both horizons and e-log markers. Structural shapes and faults can be monitored on all horizons and the look of the structural maps does not change much.

• Keywords: 3D-seizmički podaci; seizmička interpretacija; sintetski seizmogram; seizmički atributi; Petrel
• Keywords (english): 3D-seismic data; seismic interpretation; synthetic seismogram; seismic attributes; Petrel
• Language: croatian
• URN:NBN: urn:nbn:hr:169:464185
• 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: Open access
• Created on: 2015-12-21 09:12:26