Povezanost morfologije pornog sustava s laboratorijskim specijalnim analizama

master's thesis

• Title: Povezanost morfologije pornog sustava s laboratorijskim specijalnim analizama : diplomski rad
• Title (english): Correlation of the morphology of the pore system with laboratory special analyses : master's thesis
• Author: Branimir Bujanić
• Mentor: Domagoj Vulin (mentor)
• Mentor: Marko Gaćina (pomoć pri izradi, neposredni voditelj)
• Committee member: Domagoj Vulin (predsjednik povjerenstva)
• Committee member: Vladislav Brkić (član povjerenstva)
• Committee member: Luka Perković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Petroleum and Gas Engineering and energy); Zagreb
• Defense date and country: 2023, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Petroleum Mining

Abstract

Kapilarni tlak je temeljni parametar u specijalnoj analizi jezgara jer daje informacije o ponašanju i raspodjeli fluida unutar ležišne stijene. U ovom radu, uspoređena su mjerenja kapilarnog tlaka provedena metodom centrifuge s krivuljama kapilarnog tlaka izračunatim pomoću analitičkih metoda CYDAR programa. Mjerenja kapilarnog tlaka u centrifugi uspoređena su s mjerenjima metodom polupropusne membrane a sve u svrhu usklađivanja i homogenizacije podataka dobivenih iz CT snimaka. CT snimke su ograničene svojom rezolucijom, a raspoloživi podaci su precizni do 1,5 mikrometara. Ustanovljeno je kako zbog prostornog rasporeda pora i grlića pora različitih veličina, distribucija veličine pora iz laboratorijskih eksperimenata nije jednaka onoj koja se dobije analizom CT snimke. Stoga se zaključno može ustanoviti kako su za izradu kvalitetnog digitalnog modela stijene potrebne sustavne laboratorijske analize i integrirani pristup u kojem se uzimaju u obzir prednosti i mane svake metode analize.

Abstract (english)

Capillary pressure is a fundamental parameter in special core analysis because it provides information on the behavior and distribution of fluids within the reservoir rock. In this thesis, capillary pressure measurements performed using the centrifuge method were compared with capillary pressure curves calculated using the analytical methods of the CYDAR program. Capillary pressure measurements in the centrifuge were compared with measurements using the porous plate method, all for the purpose of harmonizing and homogenizing data obtained from CT scans. CT scans are limited by their resolution, and the available data is accurate to 1.5 micrometers. It was found that due to the spatial distribution of pores and pore throats of different sizes, the pore size distribution from laboratory experiments is not the same as that obtained from the analysis of CT scans. Therefore, it can be concluded that systemic laboratory analyzes and an integrated approach are necessary to create a high-quality digital rock model, taking into account the advantages and disadvantages of each analysis method.

• Keywords: kapilarni tlak; centrifuga; polupropusna membrana; stijena; analiza digitalne jezgre; distribucija veličine pora
• Keywords (english): capillary pressure; centrifuge; porous plate; rock; digital rock analysis; pore size distribution
• Language: croatian
• URN:NBN: urn:nbn:hr:169:095114
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-10-23 06:40:15