Primjena seizmičkih atributa u procjeni ležišnih značajki plinskog polja Katarina

master's thesis

• Title: Primjena seizmičkih atributa u procjeni ležišnih značajki plinskog polja Katarina : diplomski rad
• Title (english): Application of seismic attributes in evaluation of reservoir characteristics in the Katarina gas field : master’s thesis
• Author: Alan Turk
• Mentor: Jasna Orešković (mentor)
• Committee member: Jasna Orešković (predsjednik povjerenstva)
• Committee member: Franjo Šumanovac (član povjerenstva)
• Committee member: Davor Pavelić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geophysical Exploration and Mine Surveying); Zagreb
• Defense date and country: 2017-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Geology and Paleontology

Abstract

Ovaj diplomski rad izrađen je u računalnom programu Petrel™ 2014, a cilj mu je određivanje ležišnih značajki plinskog polja Katarina, te seizmička interpretacija ležišta samog polja korištenjem seizmičkih atributa. U radu su interpretirana tri ležišta: PLQ-A, PLQ1-D, te PLQ1-C, te dva horizonta: Pretpliocenska diskordancija te Santerno formacija. Izrađeni su i sintetski seizmogrami za bušotine Katarina 1 i Katarina 2. Pri procjeni ležišnih značajki korišteni su seizmički atributi: trenutna amplituda, trenutna frekvencija, trenutna faza, kosinus trenutne faze, varijanca, kaos i originalna amplituda, koji su isto tako uvelike olakšali seizmičku interpretaciju ležišta. Također, izrađene su i strukturne karte svih interpretiranih horizonata, te su opisani strukturno-tektonski i litološki odnosi. Napravljene su i 3D atributne kocke za svaki od korištenih seizmičkih atributa, te su pri analizi njihovih horizontalnih presjeka pronađeni vrlo zanimljivi prikazi kanala oko dvostrukog vremena putovanja vala od 591 ms.

Abstract (english)

This master's thesis was made using the Petrel™ 2014 computer program. The goal of the thesis was to evaluate and define reservoir characteristics of the Katarina gas field, and preform seismic interpretation of the reservoirs using seismic attributes. Three reservoirs were interpreted in this thesis: PLQ-A, PLQ1-D, as well as PLQ1-C, and two horizons: Prepliocene discontinuity and the Santerno formation. Synthetic seismograms were made for both Katarina-1 and Katarina-2 rigs. Several seismic attributes were used to evaluate reservoir characteristics: reflection strength, instantaneous frequency, instantaneous phase, variance, chaos, cosine of instantaneous phase and original amplitude, which made seismic interpretation much easier. Furthermore, structural maps for all the interpreted horizons were made, and structural-tectonic and lithological relations were described. Also, attribute cubes were made from all the seismic attributes used. Thorough analysis of the cubes horizontal slices showed very interesting contours of the channel on the 591 ms wave two way travel time.

• Keywords: Petrel 2014; seizmički atributi; sintetski seizmogram; seizmička interpretacija; seizmički trag; atributne kocke
• Keywords (english): Petrel 2014; seismic attributes; synthetic seismogram; seismic interpretation; seismic trace; attribute cube
• Language: croatian
• URN:NBN: urn:nbn:hr:169:745358
• Study programme: Title: Geology; specializations in: Geology of mineral resources and geophysical explorations; Course: Geology of mineral resources and geophysical explorations; 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: 2018-02-09 09:37:40