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master's thesis
Stohastička procjena tortuoziteta digitalnog uzorka stijene
diplomski rad
Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2022. urn:nbn:hr:169:554672
Šimić, Robert
University of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
Department of Petroleum and Gas Engineering and energy

Institutional repository: Faculty of Mining, Geology and Petroleum Engineering Repository, University of Zagreb

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Šimić, R. (2022). Stohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad (Master's thesis). Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:169:554672

Šimić, Robert. "Stohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2022. https://urn.nsk.hr/urn:nbn:hr:169:554672

Šimić, Robert. "Stohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2022. https://urn.nsk.hr/urn:nbn:hr:169:554672

Šimić, R. (2022). 'Stohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad', Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, accessed 17 February 2025, https://urn.nsk.hr/urn:nbn:hr:169:554672

Šimić R. Stohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering; 2022 [cited 2025 February 17] Available at: https://urn.nsk.hr/urn:nbn:hr:169:554672

R. Šimić, "Stohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad", Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:169:554672

Metadata
TitleStohastička procjena tortuoziteta digitalnog uzorka stijene : diplomski rad
Title (english)Stochastic prediction of tortuosity of digital rock sample : master's thesis
AuthorRobert Šimić
MentorDomagoj Vulin (mentor)
MentorMarko Gaćina (pomoć pri izradi, neposredni voditelj)
Committee memberDomagoj Vulin (predsjednik povjerenstva)
Committee memberVladislav Brkić (član povjerenstva)
Committee memberBorivoje Pašić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
(Department of Petroleum and Gas Engineering and energy)
Zagreb
Defense date and country2022-09-15, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mining, Petroleum and Geology Engineering
Petroleum Mining
Abstract
Izrađen je računalni kod, koji računa tortuozitet, tj. koeficijent zakrivljenosti pora iz digitalnog uzorka segmentirane i binarizirane CT slike stijene, za koju su, na temelju prethodno izrađenih modula (in-house kód RGN fakulteta), određeni povezani putevi kroz porni sustav. Algoritam se služi stohastičkim pristupom tj. koristi modificiranu metodu slučajnog hoda te se za skretanje putanje unutar pornih kanala koristi normalna raspodjela za koju je moguće definirati različite standardne devijacije. Uz standardnu devijaciju veću od 1,0 ustanovljeno je da rezultati postaju sličniji i da se poklapaju s nekim algoritmima drugih autora, koji su također testirani na istom digitalnom uzorku.
Abstract (english)
Tortuosity, or the curvature coefficient of pores, was computed using a digital sample of a segmented and binarized CT image of the rock and interconnected pathways across the pore system, which were found using previously created modules (in-house code of the RGN Faculty). The program employs a stochastic approach, i.e., a modified random walk technique with a normal distribution, for which different standard deviations can be chosen to simulate the drift from the shortest path inside the pore channels. When the standard deviation exceeds 1.0, the outputs become more comparable and correspond with several algorithms developed by other authors that have been evaluated using the same digital sample.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:169:554672
Study programmeTitle: Petroleum engineering; specializations in: Petroleum engineering, Energy production and supply, Environmental protection in petroleum engineering
Course: Petroleum engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka naftnog rudarstva (magistar/magistra inženjer/inženjerka naftnog rudarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-10-05 10:46:29